Gordian Envelopes can be used to support a wide variety of data-distribution use cases, covering everything from agriculture and supply chain to healthcare and telecommunication. They are the most useful when there is data that should be used in different ways by different people who have different permissions, different needs, and/or different regulations.
For example, healthcare records are extremely sensitive and contain a large amount of personally identifiable information. A patient will want to have complete records of everything, as will a primary care physician. A pharmacist would need to see a much smaller set of information, related only to prescriptions; for a prescription that has no drug-interaction dangers, they might only need to see a single prescription. Meanwhile, laws such as HIPAA (in the US) and GDPR (in the EU) make various data toxic: no one will want to have access to it unless they must. Gordian Envelopes can use elision to minimize everyone’s views of their data, for all these various reasons, while simultaneously using authentication to assure everyone that the entirety of the data is valid and unchanged.
Data Use Case Table of Contents
The following use cases focus on a fundamentally simple idea: the distribution of user-information data on the internet. In doing so, they imagine a next-generation privacy-protection data-distribution app that builds on projects such as Finger and WebFinger, protocols which continue to be actively used in apps like Mastodon and many others. These use cases are brainstorms for how an existing and successful protocol on the internet could be improved for a next generation: how the extant value could be replicated while improving its privacy.
The use cases are all progressive, building on top of each other. The first set focuses on public data, but demonstrates the advantage of authentication. The second focuses on private data that is partially or entirely elided. Two final sections are briefer: one discusses how herd privacy use cases from other pages could equally be applied here; while another considers future expansion.
- Part One: Public CryptFinger
- Part Two: Private CryptFinger
- Part Three: Herd Private CryptFinger
- Part Four: Data Distribution Advancements
The progression of these use cases reveals a new perspective on data distribution that’s not about automated discovery by search engines, but instead about purposeful, personal distribution of information, in the exact manner that the user desires.
Part One: Public CryptFinger
This first set of use cases lays out Gordian Envelope use cases for public data distribution, where everything is seen by all parties. It includes: how to create basic (structured) information, how to make that data verifiable, and how to timestamp that data.
#1: Carmen Makes Basic Info Available (Structured Data)
- Use Case: Carmen wants to make basic user information available in a structured way.
- Independence Benefits: Carmen can make personal decisions about what data is distributed.
- Openness Benefits: Data is distributed in a well-structured, self-describing manner.
Carmen has used the internet long enough that she used to finger internet users to find basic information about them. Now she uses WebFinger for even more details. However, she wants to be able to release her information in a more modular, privacy-preserving way. Thus, she begins to design “CryptFinger”.
When a user wants to find out information about carmen@cryptfinger.com they contact the cryptfinger.com cryptfinger service and request information about her. This foundational design of CryptFinger isn’t that different from WebFinger. It will allow a user to reveal their data in a structured way, including aliases, links, keys, and other information. The benefits of using CryptFinger over WebFinger will come as Carmen begins to use privacy-preserving techniques of authentication, elision, and proofs. But in the meantime, here’s what a foundational CryptFinger response might look like:
"carmen@cryptfinger.com" [
"alias": "admin@cryptfinger.com"
"alias": "carmen@blockchaincommons.com"
"alias": "carmen@mycarmentsite.com"
"alias": "@carmen@mycarmentsite.com" [
"mastodon": "https://mastodon.social/@CarmenT"
]
"cid": "ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfmynylnecwldpapafskphsgwfgmdgwmusthlzecfltiosskorers"
"hasPublication": "Cryptfinger Design Notes" [
"pubdate": "2022-10-11"
"url": "https://blockchaincommons.com/design-notes/cryptfinger.html"
"version": "1.3.1"
isA: "non-fiction article"
]
"hasPublication": "Zen and the Art of Cryptfinger Design" [
"ISBN-13": "978-1-04-876475-8"
"hasTranslation": "Zen y el arte del diseño Cryptfinger" [
"ISBN-13": "978-0-421-94892-1"
"language": "es"
"pubDate": "2022-02-22"
isA: "non-fiction book"
]
"language": "en"
"pubDate": "2022-01-17"
isA: "non-fiction book"
]
"link": "https://www.mycarmentsite.com/docs/resume2022.html" [
"rel": "resume"
"type": "text/html"
]
"phoneNumber": "510-555-0143"
"pubkey": "ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbdbbnlmdpsvtrllpchlomeutbzrhcxdputiarhlrtpfhsaiygdayzswetpvahdcxsfmocxiarketgeoemyaawmiogyftjyfwvaolndimuolgwlsrdyoyhddwgwjyjefylylnpdoe"
isA: "programmer"
isA: "writer"
]
graph LR
1(("8ebf197c<br/>NODE"))
2["4f59e396<br/>#quot;carmen@cryptfinger.com#quot;"]
3(["0595bb3a<br/>ASSERTION"])
4["4e7cdd69<br/>#quot;alias#quot;"]
5["09cfa295<br/>#quot;carmen@mycarmentsite.com#quot;"]
6(["152f509c<br/>ASSERTION"])
7["7ed9572e<br/>#quot;hasPublication#quot;"]
8(("2c51cecb<br/>NODE"))
9["14dce19e<br/>#quot;Zen and the Art of Cryptfinger Design#quot;"]
10(["18048890<br/>ASSERTION"])
11["c91b36b2<br/>#quot;pubDate#quot;"]
12["ae96f205<br/>#quot;2022-01-17#quot;"]
13(["76f63c9c<br/>ASSERTION"])
14["0846979e<br/>#quot;language#quot;"]
15["409b5893<br/>#quot;en#quot;"]
16(["7c4c63e7<br/>ASSERTION"])
17["d41c6a7e<br/>#quot;hasTranslation#quot;"]
18(("8dc1f383<br/>NODE"))
19["91ee71f8<br/>#quot;Zen y el arte del diseño Cryptfinger#quot;"]
20(["23335db9<br/>ASSERTION"])
21["c91b36b2<br/>#quot;pubDate#quot;"]
22["c4f05fb4<br/>#quot;2022-02-22#quot;"]
23(["2c5d3a5f<br/>ASSERTION"])
24["10a46e16<br/>#quot;ISBN-13#quot;"]
25["4ed1acab<br/>#quot;978-0-421-94892-1#quot;"]
26(["9db68d01<br/>ASSERTION"])
27["0846979e<br/>#quot;language#quot;"]
28["dd2f866d<br/>#quot;es#quot;"]
29(["bcf92721<br/>ASSERTION"])
30[/"8982354d<br/>isA"/]
31["fde87c34<br/>#quot;non-fiction book#quot;"]
32(["bcf92721<br/>ASSERTION"])
33[/"8982354d<br/>isA"/]
34["fde87c34<br/>#quot;non-fiction book#quot;"]
35(["e0afce84<br/>ASSERTION"])
36["10a46e16<br/>#quot;ISBN-13#quot;"]
37["18e2fcf5<br/>#quot;978-1-04-876475-8#quot;"]
38(["320d0c70<br/>ASSERTION"])
39["bf9638d1<br/>#quot;phoneNumber#quot;"]
40["48af8880<br/>#quot;510-555-0143#quot;"]
41(["366c06f1<br/>ASSERTION"])
42["7ed9572e<br/>#quot;hasPublication#quot;"]
43(("3b6cf8f0<br/>NODE"))
44["8edf5b50<br/>#quot;Cryptfinger Design Notes#quot;"]
45(["3a9a5b75<br/>ASSERTION"])
46["0e0066da<br/>#quot;pubdate#quot;"]
47["54ac7f35<br/>#quot;2022-10-11#quot;"]
48(["4514d304<br/>ASSERTION"])
49["b22687d9<br/>#quot;version#quot;"]
50["b94ba9a2<br/>#quot;1.3.1#quot;"]
51(["87b4fe55<br/>ASSERTION"])
52[/"8982354d<br/>isA"/]
53["8c645acc<br/>#quot;non-fiction article#quot;"]
54(["da22ca9e<br/>ASSERTION"])
55["7fce2d08<br/>#quot;url#quot;"]
56["fda96fd7<br/>#quot;https://blockchaincommons.com/design-not…#quot;"]
57(["46b8918d<br/>ASSERTION"])
58["4e7cdd69<br/>#quot;alias#quot;"]
59(("115429bb<br/>NODE"))
60["261fc42b<br/>#quot;@carmen@mycarmentsite.com#quot;"]
61(["ee5b6f69<br/>ASSERTION"])
62["c0276d43<br/>#quot;mastodon#quot;"]
63["a2cc6589<br/>#quot;https://mastodon.social/@CarmenT#quot;"]
64(["58711216<br/>ASSERTION"])
65["97dc30c5<br/>#quot;cid#quot;"]
66["601a1a59<br/>#quot;ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfm…#quot;"]
67(["77c587c5<br/>ASSERTION"])
68["d52596f8<br/>#quot;pubkey#quot;"]
69["a1163580<br/>#quot;ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbd…#quot;"]
70(["aff1bb37<br/>ASSERTION"])
71["4e7cdd69<br/>#quot;alias#quot;"]
72["3bc0d518<br/>#quot;admin@cryptfinger.com#quot;"]
73(["ba480823<br/>ASSERTION"])
74["4e7cdd69<br/>#quot;alias#quot;"]
75["37f5a7a1<br/>#quot;carmen@blockchaincommons.com#quot;"]
76(["c1a9c8a1<br/>ASSERTION"])
77[/"8982354d<br/>isA"/]
78["73fca274<br/>#quot;programmer#quot;"]
79(["f78f6b55<br/>ASSERTION"])
80["63a81883<br/>#quot;link#quot;"]
81(("4678aa0e<br/>NODE"))
82["2be32270<br/>#quot;https://www.mycarmentsite.com/docs/resum…#quot;"]
83(["a3d08cc8<br/>ASSERTION"])
84["29e6e5e3<br/>#quot;rel#quot;"]
85["f4f47e81<br/>#quot;resume#quot;"]
86(["ee227143<br/>ASSERTION"])
87["0725fe16<br/>#quot;type#quot;"]
88["f79da2a8<br/>#quot;text/html#quot;"]
89(["fa6f4cc6<br/>ASSERTION"])
90[/"8982354d<br/>isA"/]
91["7b82b07e<br/>#quot;writer#quot;"]
1 -->|subj| 2
1 --> 3
3 -->|pred| 4
3 -->|obj| 5
1 --> 6
6 -->|pred| 7
6 -->|obj| 8
8 -->|subj| 9
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8 --> 32
32 -->|pred| 33
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8 --> 35
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1 --> 38
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43 --> 54
54 -->|pred| 55
54 -->|obj| 56
1 --> 57
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57 -->|obj| 59
59 -->|subj| 60
59 --> 61
61 -->|pred| 62
61 -->|obj| 63
1 --> 64
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64 -->|obj| 66
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67 -->|obj| 69
1 --> 70
70 -->|pred| 71
70 -->|obj| 72
1 --> 73
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73 -->|obj| 75
1 --> 76
76 -->|pred| 77
76 -->|obj| 78
1 --> 79
79 -->|pred| 80
79 -->|obj| 81
81 -->|subj| 82
81 --> 83
83 -->|pred| 84
83 -->|obj| 85
81 --> 86
86 -->|pred| 87
86 -->|obj| 88
1 --> 89
89 -->|pred| 90
89 -->|obj| 91
style 1 stroke:red,stroke-width:3.0px
style 2 stroke:#55f,stroke-width:3.0px
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style 61 stroke:red,stroke-width:3.0px
style 62 stroke:#55f,stroke-width:3.0px
style 63 stroke:#55f,stroke-width:3.0px
style 64 stroke:red,stroke-width:3.0px
style 65 stroke:#55f,stroke-width:3.0px
style 66 stroke:#55f,stroke-width:3.0px
style 67 stroke:red,stroke-width:3.0px
style 68 stroke:#55f,stroke-width:3.0px
style 69 stroke:#55f,stroke-width:3.0px
style 70 stroke:red,stroke-width:3.0px
style 71 stroke:#55f,stroke-width:3.0px
style 72 stroke:#55f,stroke-width:3.0px
style 73 stroke:red,stroke-width:3.0px
style 74 stroke:#55f,stroke-width:3.0px
style 75 stroke:#55f,stroke-width:3.0px
style 76 stroke:red,stroke-width:3.0px
style 77 stroke:#55f,stroke-width:3.0px
style 78 stroke:#55f,stroke-width:3.0px
style 79 stroke:red,stroke-width:3.0px
style 80 stroke:#55f,stroke-width:3.0px
style 81 stroke:red,stroke-width:3.0px
style 82 stroke:#55f,stroke-width:3.0px
style 83 stroke:red,stroke-width:3.0px
style 84 stroke:#55f,stroke-width:3.0px
style 85 stroke:#55f,stroke-width:3.0px
style 86 stroke:red,stroke-width:3.0px
style 87 stroke:#55f,stroke-width:3.0px
style 88 stroke:#55f,stroke-width:3.0px
style 89 stroke:red,stroke-width:3.0px
style 90 stroke:#55f,stroke-width:3.0px
style 91 stroke:#55f,stroke-width:3.0px
linkStyle 0 stroke:red,stroke-width:2.0px
linkStyle 1 stroke-width:2.0px
linkStyle 2 stroke:green,stroke-width:2.0px
linkStyle 3 stroke:#55f,stroke-width:2.0px
linkStyle 4 stroke-width:2.0px
linkStyle 5 stroke:green,stroke-width:2.0px
linkStyle 6 stroke:#55f,stroke-width:2.0px
linkStyle 7 stroke:red,stroke-width:2.0px
linkStyle 8 stroke-width:2.0px
linkStyle 9 stroke:green,stroke-width:2.0px
linkStyle 10 stroke:#55f,stroke-width:2.0px
linkStyle 11 stroke-width:2.0px
linkStyle 12 stroke:green,stroke-width:2.0px
linkStyle 13 stroke:#55f,stroke-width:2.0px
linkStyle 14 stroke-width:2.0px
linkStyle 15 stroke:green,stroke-width:2.0px
linkStyle 16 stroke:#55f,stroke-width:2.0px
linkStyle 17 stroke:red,stroke-width:2.0px
linkStyle 18 stroke-width:2.0px
linkStyle 19 stroke:green,stroke-width:2.0px
linkStyle 20 stroke:#55f,stroke-width:2.0px
linkStyle 21 stroke-width:2.0px
linkStyle 22 stroke:green,stroke-width:2.0px
linkStyle 23 stroke:#55f,stroke-width:2.0px
linkStyle 24 stroke-width:2.0px
linkStyle 25 stroke:green,stroke-width:2.0px
linkStyle 26 stroke:#55f,stroke-width:2.0px
linkStyle 27 stroke-width:2.0px
linkStyle 28 stroke:green,stroke-width:2.0px
linkStyle 29 stroke:#55f,stroke-width:2.0px
linkStyle 30 stroke-width:2.0px
linkStyle 31 stroke:green,stroke-width:2.0px
linkStyle 32 stroke:#55f,stroke-width:2.0px
linkStyle 33 stroke-width:2.0px
linkStyle 34 stroke:green,stroke-width:2.0px
linkStyle 35 stroke:#55f,stroke-width:2.0px
linkStyle 36 stroke-width:2.0px
linkStyle 37 stroke:green,stroke-width:2.0px
linkStyle 38 stroke:#55f,stroke-width:2.0px
linkStyle 39 stroke-width:2.0px
linkStyle 40 stroke:green,stroke-width:2.0px
linkStyle 41 stroke:#55f,stroke-width:2.0px
linkStyle 42 stroke:red,stroke-width:2.0px
linkStyle 43 stroke-width:2.0px
linkStyle 44 stroke:green,stroke-width:2.0px
linkStyle 45 stroke:#55f,stroke-width:2.0px
linkStyle 46 stroke-width:2.0px
linkStyle 47 stroke:green,stroke-width:2.0px
linkStyle 48 stroke:#55f,stroke-width:2.0px
linkStyle 49 stroke-width:2.0px
linkStyle 50 stroke:green,stroke-width:2.0px
linkStyle 51 stroke:#55f,stroke-width:2.0px
linkStyle 52 stroke-width:2.0px
linkStyle 53 stroke:green,stroke-width:2.0px
linkStyle 54 stroke:#55f,stroke-width:2.0px
linkStyle 55 stroke-width:2.0px
linkStyle 56 stroke:green,stroke-width:2.0px
linkStyle 57 stroke:#55f,stroke-width:2.0px
linkStyle 58 stroke:red,stroke-width:2.0px
linkStyle 59 stroke-width:2.0px
linkStyle 60 stroke:green,stroke-width:2.0px
linkStyle 61 stroke:#55f,stroke-width:2.0px
linkStyle 62 stroke-width:2.0px
linkStyle 63 stroke:green,stroke-width:2.0px
linkStyle 64 stroke:#55f,stroke-width:2.0px
linkStyle 65 stroke-width:2.0px
linkStyle 66 stroke:green,stroke-width:2.0px
linkStyle 67 stroke:#55f,stroke-width:2.0px
linkStyle 68 stroke-width:2.0px
linkStyle 69 stroke:green,stroke-width:2.0px
linkStyle 70 stroke:#55f,stroke-width:2.0px
linkStyle 71 stroke-width:2.0px
linkStyle 72 stroke:green,stroke-width:2.0px
linkStyle 73 stroke:#55f,stroke-width:2.0px
linkStyle 74 stroke-width:2.0px
linkStyle 75 stroke:green,stroke-width:2.0px
linkStyle 76 stroke:#55f,stroke-width:2.0px
linkStyle 77 stroke-width:2.0px
linkStyle 78 stroke:green,stroke-width:2.0px
linkStyle 79 stroke:#55f,stroke-width:2.0px
linkStyle 80 stroke:red,stroke-width:2.0px
linkStyle 81 stroke-width:2.0px
linkStyle 82 stroke:green,stroke-width:2.0px
linkStyle 83 stroke:#55f,stroke-width:2.0px
linkStyle 84 stroke-width:2.0px
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linkStyle 86 stroke:#55f,stroke-width:2.0px
linkStyle 87 stroke-width:2.0px
linkStyle 88 stroke:green,stroke-width:2.0px
The contents of this CryptFinger response are worthy of some further discussions. The most important element may be its inclusion of what are essentially rel=me equivalencies. The CryptFinger service at cryptfinger.com claims that carmen at that site is equivalent to “admin@cryptfinger.com”, “carmen@blockchaincommons.com”, and “carmen@mycarmentsite.com”; with additional metadata it can even describe the alias “@carmen@mycarmentsite.com” with its Mastodon equivalence. Besides that, the response also offers the equivalence of powerful identifiers, such as CIDs and public keys, and powerful communication mechanisms, such as phone numbers. Finally, it offers other informational tidbits such as what Carmen does and what she’s published. If there’s data about a person, CryptFinger can be structured to contain it, even if it’s multilevel data, such as Carmen’s book Zen and the Art of Cryptfinger Design, which has also been translated.
But structured data is just the start. More innovations will come as Carmen adds on cryptographic and privacy-preserving features from Gordian Envelope.
#2: Carmen Makes CryptFinger Verifiable (Signatures)
- Problem Solved: Carmen wants to make user information verifiable.
- Independence Benefit: Carmen can support verification of her data, turning it from just plain finger information into credentials.
- Openness Benefit: Data can be freely circulated beyond the CryptFinger service, without losing any of its verifiability.
Carmen’s first expansion of her CryptFinger design is to make it verifiable. This will have some limited utility when data is initially accessed. Users can check the signature of the CryptFinger results against a public key, and verify that the signature matches that public key. If the public key is hosted on the same domain as the CryptFinger data, then it suggests only that the CryptFinger daemon hasn’t been compromised. If it’s hosted on a Public-Key Infrastructure (PKI) server, it may offer assurances about the server as a whole. (For any validation of this sort, the validator is the one responsible for figuring out how strong any assurances are and what the implicit dangers are.)
However, making CryptFinger verifiable offers a more powerful expansion: the Envelopes containing CryptFinger results can now be passed around, and those Envelopes can be validated at any time by any holder. An Envelope could even be verified far in the future if there’s some remaining proof of the public key that was used to sign the Envelope! If a third-party ever tries to make changes to a CryptFinger Envelope’s content, the Envelope will no longer be verifiable!
In order to add authentication to CryptFinger results, Carmen wraps them, adds verifier data, then wraps that and signs it. The result is a signature that applies to the verifier data and the original CryptFinger data alike.
Here’s Carmen’s CryptFinger results with the verifier info:
{
"carmen@cryptfinger.com" [
"alias": "admin@cryptfinger.com"
"alias": "carmen@blockchaincommons.com"
"alias": "carmen@mycarmentsite.com"
"alias": "@carmen@mycarmentsite.com" [
"mastodon": "https://mastodon.social/@CarmenT"
]
"cid": "ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfmynylnecwldpapafskphsgwfgmdgwmusthlzecfltiosskorers"
"hasPublication": "Cryptfinger Design Notes" [
"pubdate": "2022-10-11"
"url": "https://blockchaincommons.com/design-notes/cryptfinger.html"
"version": "1.3.1"
isA: "non-fiction article"
]
"hasPublication": "Zen and the Art of Cryptfinger Design" [
"ISBN-13": "978-1-04-876475-8"
"hasTranslation": "Zen y el arte del diseño Cryptfinger" [
"ISBN-13": "978-0-421-94892-1"
"language": "es"
"pubDate": "2022-02-22"
isA: "non-fiction book"
]
"language": "en"
"pubDate": "2022-01-17"
isA: "non-fiction book"
]
"link": "https://www.mycarmentsite.com/docs/resume2022.html" [
"rel": "resume"
"type": "text/html"
]
"phoneNumber": "510-555-0143"
"pubkey": "ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbdbbnlmdpsvtrllpchlomeutbzrhcxdputiarhlrtpfhsaiygdayzswetpvahdcxsfmocxiarketgeoemyaawmiogyftjyfwvaolndimuolgwlsrdyoyhddwgwjyjefylylnpdoe"
isA: "programmer"
isA: "writer"
]
} [
"verifierInfo": "cryptfinger.com" [
"pubkeyURL": "ur:crypto-pubkeys/lftaaosehdcximbbhfzscptyrdptctdiykhskekgpmashheslnfdrepfrljonnglaevoasremulytpvahdcxfxlssfkiaogyeyrtaszeluzmgedkcppdwyfdzcdryntdtplkinlbmkskjkrlnnjngsbemhne"
]
]
graph LR
1(("97b6298b<br/>NODE"))
2[/"59b76ff6<br/>WRAPPED"\]
3(("8ebf197c<br/>NODE"))
4["4f59e396<br/>#quot;carmen@cryptfinger.com#quot;"]
5(["0595bb3a<br/>ASSERTION"])
6["4e7cdd69<br/>#quot;alias#quot;"]
7["09cfa295<br/>#quot;carmen@mycarmentsite.com#quot;"]
8(["152f509c<br/>ASSERTION"])
9["7ed9572e<br/>#quot;hasPublication#quot;"]
10(("2c51cecb<br/>NODE"))
11["14dce19e<br/>#quot;Zen and the Art of Cryptfinger Design#quot;"]
12(["18048890<br/>ASSERTION"])
13["c91b36b2<br/>#quot;pubDate#quot;"]
14["ae96f205<br/>#quot;2022-01-17#quot;"]
15(["76f63c9c<br/>ASSERTION"])
16["0846979e<br/>#quot;language#quot;"]
17["409b5893<br/>#quot;en#quot;"]
18(["7c4c63e7<br/>ASSERTION"])
19["d41c6a7e<br/>#quot;hasTranslation#quot;"]
20(("8dc1f383<br/>NODE"))
21["91ee71f8<br/>#quot;Zen y el arte del diseño Cryptfinger#quot;"]
22(["23335db9<br/>ASSERTION"])
23["c91b36b2<br/>#quot;pubDate#quot;"]
24["c4f05fb4<br/>#quot;2022-02-22#quot;"]
25(["2c5d3a5f<br/>ASSERTION"])
26["10a46e16<br/>#quot;ISBN-13#quot;"]
27["4ed1acab<br/>#quot;978-0-421-94892-1#quot;"]
28(["9db68d01<br/>ASSERTION"])
29["0846979e<br/>#quot;language#quot;"]
30["dd2f866d<br/>#quot;es#quot;"]
31(["bcf92721<br/>ASSERTION"])
32[/"8982354d<br/>isA"/]
33["fde87c34<br/>#quot;non-fiction book#quot;"]
34(["bcf92721<br/>ASSERTION"])
35[/"8982354d<br/>isA"/]
36["fde87c34<br/>#quot;non-fiction book#quot;"]
37(["e0afce84<br/>ASSERTION"])
38["10a46e16<br/>#quot;ISBN-13#quot;"]
39["18e2fcf5<br/>#quot;978-1-04-876475-8#quot;"]
40(["320d0c70<br/>ASSERTION"])
41["bf9638d1<br/>#quot;phoneNumber#quot;"]
42["48af8880<br/>#quot;510-555-0143#quot;"]
43(["366c06f1<br/>ASSERTION"])
44["7ed9572e<br/>#quot;hasPublication#quot;"]
45(("3b6cf8f0<br/>NODE"))
46["8edf5b50<br/>#quot;Cryptfinger Design Notes#quot;"]
47(["3a9a5b75<br/>ASSERTION"])
48["0e0066da<br/>#quot;pubdate#quot;"]
49["54ac7f35<br/>#quot;2022-10-11#quot;"]
50(["4514d304<br/>ASSERTION"])
51["b22687d9<br/>#quot;version#quot;"]
52["b94ba9a2<br/>#quot;1.3.1#quot;"]
53(["87b4fe55<br/>ASSERTION"])
54[/"8982354d<br/>isA"/]
55["8c645acc<br/>#quot;non-fiction article#quot;"]
56(["da22ca9e<br/>ASSERTION"])
57["7fce2d08<br/>#quot;url#quot;"]
58["fda96fd7<br/>#quot;https://blockchaincommons.com/design-not…#quot;"]
59(["46b8918d<br/>ASSERTION"])
60["4e7cdd69<br/>#quot;alias#quot;"]
61(("115429bb<br/>NODE"))
62["261fc42b<br/>#quot;@carmen@mycarmentsite.com#quot;"]
63(["ee5b6f69<br/>ASSERTION"])
64["c0276d43<br/>#quot;mastodon#quot;"]
65["a2cc6589<br/>#quot;https://mastodon.social/@CarmenT#quot;"]
66(["58711216<br/>ASSERTION"])
67["97dc30c5<br/>#quot;cid#quot;"]
68["601a1a59<br/>#quot;ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfm…#quot;"]
69(["77c587c5<br/>ASSERTION"])
70["d52596f8<br/>#quot;pubkey#quot;"]
71["a1163580<br/>#quot;ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbd…#quot;"]
72(["aff1bb37<br/>ASSERTION"])
73["4e7cdd69<br/>#quot;alias#quot;"]
74["3bc0d518<br/>#quot;admin@cryptfinger.com#quot;"]
75(["ba480823<br/>ASSERTION"])
76["4e7cdd69<br/>#quot;alias#quot;"]
77["37f5a7a1<br/>#quot;carmen@blockchaincommons.com#quot;"]
78(["c1a9c8a1<br/>ASSERTION"])
79[/"8982354d<br/>isA"/]
80["73fca274<br/>#quot;programmer#quot;"]
81(["f78f6b55<br/>ASSERTION"])
82["63a81883<br/>#quot;link#quot;"]
83(("4678aa0e<br/>NODE"))
84["2be32270<br/>#quot;https://www.mycarmentsite.com/docs/resum…#quot;"]
85(["a3d08cc8<br/>ASSERTION"])
86["29e6e5e3<br/>#quot;rel#quot;"]
87["f4f47e81<br/>#quot;resume#quot;"]
88(["ee227143<br/>ASSERTION"])
89["0725fe16<br/>#quot;type#quot;"]
90["f79da2a8<br/>#quot;text/html#quot;"]
91(["fa6f4cc6<br/>ASSERTION"])
92[/"8982354d<br/>isA"/]
93["7b82b07e<br/>#quot;writer#quot;"]
94(["cf57039c<br/>ASSERTION"])
95["7e84d1a9<br/>#quot;verifierInfo#quot;"]
96(("de057405<br/>NODE"))
97["7067ea88<br/>#quot;cryptfinger.com#quot;"]
98(["221b8c49<br/>ASSERTION"])
99["29c0cd61<br/>#quot;pubkeyURL#quot;"]
100["fc7df80f<br/>#quot;ur:crypto-pubkeys/lftaaosehdcximbbhfzscp…#quot;"]
1 -->|subj| 2
2 -->|subj| 3
3 -->|subj| 4
3 --> 5
5 -->|pred| 6
5 -->|obj| 7
3 --> 8
8 -->|pred| 9
8 -->|obj| 10
10 -->|subj| 11
10 --> 12
12 -->|pred| 13
12 -->|obj| 14
10 --> 15
15 -->|pred| 16
15 -->|obj| 17
10 --> 18
18 -->|pred| 19
18 -->|obj| 20
20 -->|subj| 21
20 --> 22
22 -->|pred| 23
22 -->|obj| 24
20 --> 25
25 -->|pred| 26
25 -->|obj| 27
20 --> 28
28 -->|pred| 29
28 -->|obj| 30
20 --> 31
31 -->|pred| 32
31 -->|obj| 33
10 --> 34
34 -->|pred| 35
34 -->|obj| 36
10 --> 37
37 -->|pred| 38
37 -->|obj| 39
3 --> 40
40 -->|pred| 41
40 -->|obj| 42
3 --> 43
43 -->|pred| 44
43 -->|obj| 45
45 -->|subj| 46
45 --> 47
47 -->|pred| 48
47 -->|obj| 49
45 --> 50
50 -->|pred| 51
50 -->|obj| 52
45 --> 53
53 -->|pred| 54
53 -->|obj| 55
45 --> 56
56 -->|pred| 57
56 -->|obj| 58
3 --> 59
59 -->|pred| 60
59 -->|obj| 61
61 -->|subj| 62
61 --> 63
63 -->|pred| 64
63 -->|obj| 65
3 --> 66
66 -->|pred| 67
66 -->|obj| 68
3 --> 69
69 -->|pred| 70
69 -->|obj| 71
3 --> 72
72 -->|pred| 73
72 -->|obj| 74
3 --> 75
75 -->|pred| 76
75 -->|obj| 77
3 --> 78
78 -->|pred| 79
78 -->|obj| 80
3 --> 81
81 -->|pred| 82
81 -->|obj| 83
83 -->|subj| 84
83 --> 85
85 -->|pred| 86
85 -->|obj| 87
83 --> 88
88 -->|pred| 89
88 -->|obj| 90
3 --> 91
91 -->|pred| 92
91 -->|obj| 93
1 --> 94
94 -->|pred| 95
94 -->|obj| 96
96 -->|subj| 97
96 --> 98
98 -->|pred| 99
98 -->|obj| 100
style 1 stroke:red,stroke-width:3.0px
style 2 stroke:red,stroke-width:3.0px
style 3 stroke:red,stroke-width:3.0px
style 4 stroke:#55f,stroke-width:3.0px
style 5 stroke:red,stroke-width:3.0px
style 6 stroke:#55f,stroke-width:3.0px
style 7 stroke:#55f,stroke-width:3.0px
style 8 stroke:red,stroke-width:3.0px
style 9 stroke:#55f,stroke-width:3.0px
style 10 stroke:red,stroke-width:3.0px
style 11 stroke:#55f,stroke-width:3.0px
style 12 stroke:red,stroke-width:3.0px
style 13 stroke:#55f,stroke-width:3.0px
style 14 stroke:#55f,stroke-width:3.0px
style 15 stroke:red,stroke-width:3.0px
style 16 stroke:#55f,stroke-width:3.0px
style 17 stroke:#55f,stroke-width:3.0px
style 18 stroke:red,stroke-width:3.0px
style 19 stroke:#55f,stroke-width:3.0px
style 20 stroke:red,stroke-width:3.0px
style 21 stroke:#55f,stroke-width:3.0px
style 22 stroke:red,stroke-width:3.0px
style 23 stroke:#55f,stroke-width:3.0px
style 24 stroke:#55f,stroke-width:3.0px
style 25 stroke:red,stroke-width:3.0px
style 26 stroke:#55f,stroke-width:3.0px
style 27 stroke:#55f,stroke-width:3.0px
style 28 stroke:red,stroke-width:3.0px
style 29 stroke:#55f,stroke-width:3.0px
style 30 stroke:#55f,stroke-width:3.0px
style 31 stroke:red,stroke-width:3.0px
style 32 stroke:#55f,stroke-width:3.0px
style 33 stroke:#55f,stroke-width:3.0px
style 34 stroke:red,stroke-width:3.0px
style 35 stroke:#55f,stroke-width:3.0px
style 36 stroke:#55f,stroke-width:3.0px
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style 46 stroke:#55f,stroke-width:3.0px
style 47 stroke:red,stroke-width:3.0px
style 48 stroke:#55f,stroke-width:3.0px
style 49 stroke:#55f,stroke-width:3.0px
style 50 stroke:red,stroke-width:3.0px
style 51 stroke:#55f,stroke-width:3.0px
style 52 stroke:#55f,stroke-width:3.0px
style 53 stroke:red,stroke-width:3.0px
style 54 stroke:#55f,stroke-width:3.0px
style 55 stroke:#55f,stroke-width:3.0px
style 56 stroke:red,stroke-width:3.0px
style 57 stroke:#55f,stroke-width:3.0px
style 58 stroke:#55f,stroke-width:3.0px
style 59 stroke:red,stroke-width:3.0px
style 60 stroke:#55f,stroke-width:3.0px
style 61 stroke:red,stroke-width:3.0px
style 62 stroke:#55f,stroke-width:3.0px
style 63 stroke:red,stroke-width:3.0px
style 64 stroke:#55f,stroke-width:3.0px
style 65 stroke:#55f,stroke-width:3.0px
style 66 stroke:red,stroke-width:3.0px
style 67 stroke:#55f,stroke-width:3.0px
style 68 stroke:#55f,stroke-width:3.0px
style 69 stroke:red,stroke-width:3.0px
style 70 stroke:#55f,stroke-width:3.0px
style 71 stroke:#55f,stroke-width:3.0px
style 72 stroke:red,stroke-width:3.0px
style 73 stroke:#55f,stroke-width:3.0px
style 74 stroke:#55f,stroke-width:3.0px
style 75 stroke:red,stroke-width:3.0px
style 76 stroke:#55f,stroke-width:3.0px
style 77 stroke:#55f,stroke-width:3.0px
style 78 stroke:red,stroke-width:3.0px
style 79 stroke:#55f,stroke-width:3.0px
style 80 stroke:#55f,stroke-width:3.0px
style 81 stroke:red,stroke-width:3.0px
style 82 stroke:#55f,stroke-width:3.0px
style 83 stroke:red,stroke-width:3.0px
style 84 stroke:#55f,stroke-width:3.0px
style 85 stroke:red,stroke-width:3.0px
style 86 stroke:#55f,stroke-width:3.0px
style 87 stroke:#55f,stroke-width:3.0px
style 88 stroke:red,stroke-width:3.0px
style 89 stroke:#55f,stroke-width:3.0px
style 90 stroke:#55f,stroke-width:3.0px
style 91 stroke:red,stroke-width:3.0px
style 92 stroke:#55f,stroke-width:3.0px
style 93 stroke:#55f,stroke-width:3.0px
style 94 stroke:red,stroke-width:3.0px
style 95 stroke:#55f,stroke-width:3.0px
style 96 stroke:red,stroke-width:3.0px
style 97 stroke:#55f,stroke-width:3.0px
style 98 stroke:red,stroke-width:3.0px
style 99 stroke:#55f,stroke-width:3.0px
style 100 stroke:#55f,stroke-width:3.0px
linkStyle 0 stroke:red,stroke-width:2.0px
linkStyle 1 stroke:red,stroke-width:2.0px
linkStyle 2 stroke:red,stroke-width:2.0px
linkStyle 3 stroke-width:2.0px
linkStyle 4 stroke:green,stroke-width:2.0px
linkStyle 5 stroke:#55f,stroke-width:2.0px
linkStyle 6 stroke-width:2.0px
linkStyle 7 stroke:green,stroke-width:2.0px
linkStyle 8 stroke:#55f,stroke-width:2.0px
linkStyle 9 stroke:red,stroke-width:2.0px
linkStyle 10 stroke-width:2.0px
linkStyle 11 stroke:green,stroke-width:2.0px
linkStyle 12 stroke:#55f,stroke-width:2.0px
linkStyle 13 stroke-width:2.0px
linkStyle 14 stroke:green,stroke-width:2.0px
linkStyle 15 stroke:#55f,stroke-width:2.0px
linkStyle 16 stroke-width:2.0px
linkStyle 17 stroke:green,stroke-width:2.0px
linkStyle 18 stroke:#55f,stroke-width:2.0px
linkStyle 19 stroke:red,stroke-width:2.0px
linkStyle 20 stroke-width:2.0px
linkStyle 21 stroke:green,stroke-width:2.0px
linkStyle 22 stroke:#55f,stroke-width:2.0px
linkStyle 23 stroke-width:2.0px
linkStyle 24 stroke:green,stroke-width:2.0px
linkStyle 25 stroke:#55f,stroke-width:2.0px
linkStyle 26 stroke-width:2.0px
linkStyle 27 stroke:green,stroke-width:2.0px
linkStyle 28 stroke:#55f,stroke-width:2.0px
linkStyle 29 stroke-width:2.0px
linkStyle 30 stroke:green,stroke-width:2.0px
linkStyle 31 stroke:#55f,stroke-width:2.0px
linkStyle 32 stroke-width:2.0px
linkStyle 33 stroke:green,stroke-width:2.0px
linkStyle 34 stroke:#55f,stroke-width:2.0px
linkStyle 35 stroke-width:2.0px
linkStyle 36 stroke:green,stroke-width:2.0px
linkStyle 37 stroke:#55f,stroke-width:2.0px
linkStyle 38 stroke-width:2.0px
linkStyle 39 stroke:green,stroke-width:2.0px
linkStyle 40 stroke:#55f,stroke-width:2.0px
linkStyle 41 stroke-width:2.0px
linkStyle 42 stroke:green,stroke-width:2.0px
linkStyle 43 stroke:#55f,stroke-width:2.0px
linkStyle 44 stroke:red,stroke-width:2.0px
linkStyle 45 stroke-width:2.0px
linkStyle 46 stroke:green,stroke-width:2.0px
linkStyle 47 stroke:#55f,stroke-width:2.0px
linkStyle 48 stroke-width:2.0px
linkStyle 49 stroke:green,stroke-width:2.0px
linkStyle 50 stroke:#55f,stroke-width:2.0px
linkStyle 51 stroke-width:2.0px
linkStyle 52 stroke:green,stroke-width:2.0px
linkStyle 53 stroke:#55f,stroke-width:2.0px
linkStyle 54 stroke-width:2.0px
linkStyle 55 stroke:green,stroke-width:2.0px
linkStyle 56 stroke:#55f,stroke-width:2.0px
linkStyle 57 stroke-width:2.0px
linkStyle 58 stroke:green,stroke-width:2.0px
linkStyle 59 stroke:#55f,stroke-width:2.0px
linkStyle 60 stroke:red,stroke-width:2.0px
linkStyle 61 stroke-width:2.0px
linkStyle 62 stroke:green,stroke-width:2.0px
linkStyle 63 stroke:#55f,stroke-width:2.0px
linkStyle 64 stroke-width:2.0px
linkStyle 65 stroke:green,stroke-width:2.0px
linkStyle 66 stroke:#55f,stroke-width:2.0px
linkStyle 67 stroke-width:2.0px
linkStyle 68 stroke:green,stroke-width:2.0px
linkStyle 69 stroke:#55f,stroke-width:2.0px
linkStyle 70 stroke-width:2.0px
linkStyle 71 stroke:green,stroke-width:2.0px
linkStyle 72 stroke:#55f,stroke-width:2.0px
linkStyle 73 stroke-width:2.0px
linkStyle 74 stroke:green,stroke-width:2.0px
linkStyle 75 stroke:#55f,stroke-width:2.0px
linkStyle 76 stroke-width:2.0px
linkStyle 77 stroke:green,stroke-width:2.0px
linkStyle 78 stroke:#55f,stroke-width:2.0px
linkStyle 79 stroke-width:2.0px
linkStyle 80 stroke:green,stroke-width:2.0px
linkStyle 81 stroke:#55f,stroke-width:2.0px
linkStyle 82 stroke:red,stroke-width:2.0px
linkStyle 83 stroke-width:2.0px
linkStyle 84 stroke:green,stroke-width:2.0px
linkStyle 85 stroke:#55f,stroke-width:2.0px
linkStyle 86 stroke-width:2.0px
linkStyle 87 stroke:green,stroke-width:2.0px
linkStyle 88 stroke:#55f,stroke-width:2.0px
linkStyle 89 stroke-width:2.0px
linkStyle 90 stroke:green,stroke-width:2.0px
linkStyle 91 stroke:#55f,stroke-width:2.0px
linkStyle 92 stroke-width:2.0px
linkStyle 93 stroke:green,stroke-width:2.0px
linkStyle 94 stroke:#55f,stroke-width:2.0px
linkStyle 95 stroke:red,stroke-width:2.0px
linkStyle 96 stroke-width:2.0px
linkStyle 97 stroke:green,stroke-width:2.0px
linkStyle 98 stroke:#55f,stroke-width:2.0px
Here it is signed:
{
{
"carmen@cryptfinger.com" [
"alias": "admin@cryptfinger.com"
"alias": "carmen@blockchaincommons.com"
"alias": "carmen@mycarmentsite.com"
"alias": "@carmen@mycarmentsite.com" [
"mastodon": "https://mastodon.social/@CarmenT"
]
"cid": "ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfmynylnecwldpapafskphsgwfgmdgwmusthlzecfltiosskorers"
"hasPublication": "Cryptfinger Design Notes" [
"pubdate": "2022-10-11"
"url": "https://blockchaincommons.com/design-notes/cryptfinger.html"
"version": "1.3.1"
isA: "non-fiction article"
]
"hasPublication": "Zen and the Art of Cryptfinger Design" [
"ISBN-13": "978-1-04-876475-8"
"hasTranslation": "Zen y el arte del diseño Cryptfinger" [
"ISBN-13": "978-0-421-94892-1"
"language": "es"
"pubDate": "2022-02-22"
isA: "non-fiction book"
]
"language": "en"
"pubDate": "2022-01-17"
isA: "non-fiction book"
]
"link": "https://www.mycarmentsite.com/docs/resume2022.html" [
"rel": "resume"
"type": "text/html"
]
"phoneNumber": "510-555-0143"
"pubkey": "ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbdbbnlmdpsvtrllpchlomeutbzrhcxdputiarhlrtpfhsaiygdayzswetpvahdcxsfmocxiarketgeoemyaawmiogyftjyfwvaolndimuolgwlsrdyoyhddwgwjyjefylylnpdoe"
isA: "programmer"
isA: "writer"
]
} [
"verifierInfo": "cryptfinger.com" [
"pubkeyURL": "ur:crypto-pubkeys/lftaaosehdcximbbhfzscptyrdptctdiykhskekgpmashheslnfdrepfrljonnglaevoasremulytpvahdcxfxlssfkiaogyeyrtaszeluzmgedkcppdwyfdzcdryntdtplkinlbmkskjkrlnnjngsbemhne"
]
]
} [
verifiedBy: Signature
]
graph LR
1(("4c7e8a6a<br/>NODE"))
2[/"3ab70d6b<br/>WRAPPED"\]
3(("97b6298b<br/>NODE"))
4[/"59b76ff6<br/>WRAPPED"\]
5(("8ebf197c<br/>NODE"))
6["4f59e396<br/>#quot;carmen@cryptfinger.com#quot;"]
7(["0595bb3a<br/>ASSERTION"])
8["4e7cdd69<br/>#quot;alias#quot;"]
9["09cfa295<br/>#quot;carmen@mycarmentsite.com#quot;"]
10(["152f509c<br/>ASSERTION"])
11["7ed9572e<br/>#quot;hasPublication#quot;"]
12(("2c51cecb<br/>NODE"))
13["14dce19e<br/>#quot;Zen and the Art of Cryptfinger Design#quot;"]
14(["18048890<br/>ASSERTION"])
15["c91b36b2<br/>#quot;pubDate#quot;"]
16["ae96f205<br/>#quot;2022-01-17#quot;"]
17(["76f63c9c<br/>ASSERTION"])
18["0846979e<br/>#quot;language#quot;"]
19["409b5893<br/>#quot;en#quot;"]
20(["7c4c63e7<br/>ASSERTION"])
21["d41c6a7e<br/>#quot;hasTranslation#quot;"]
22(("8dc1f383<br/>NODE"))
23["91ee71f8<br/>#quot;Zen y el arte del diseño Cryptfinger#quot;"]
24(["23335db9<br/>ASSERTION"])
25["c91b36b2<br/>#quot;pubDate#quot;"]
26["c4f05fb4<br/>#quot;2022-02-22#quot;"]
27(["2c5d3a5f<br/>ASSERTION"])
28["10a46e16<br/>#quot;ISBN-13#quot;"]
29["4ed1acab<br/>#quot;978-0-421-94892-1#quot;"]
30(["9db68d01<br/>ASSERTION"])
31["0846979e<br/>#quot;language#quot;"]
32["dd2f866d<br/>#quot;es#quot;"]
33(["bcf92721<br/>ASSERTION"])
34[/"8982354d<br/>isA"/]
35["fde87c34<br/>#quot;non-fiction book#quot;"]
36(["bcf92721<br/>ASSERTION"])
37[/"8982354d<br/>isA"/]
38["fde87c34<br/>#quot;non-fiction book#quot;"]
39(["e0afce84<br/>ASSERTION"])
40["10a46e16<br/>#quot;ISBN-13#quot;"]
41["18e2fcf5<br/>#quot;978-1-04-876475-8#quot;"]
42(["320d0c70<br/>ASSERTION"])
43["bf9638d1<br/>#quot;phoneNumber#quot;"]
44["48af8880<br/>#quot;510-555-0143#quot;"]
45(["366c06f1<br/>ASSERTION"])
46["7ed9572e<br/>#quot;hasPublication#quot;"]
47(("3b6cf8f0<br/>NODE"))
48["8edf5b50<br/>#quot;Cryptfinger Design Notes#quot;"]
49(["3a9a5b75<br/>ASSERTION"])
50["0e0066da<br/>#quot;pubdate#quot;"]
51["54ac7f35<br/>#quot;2022-10-11#quot;"]
52(["4514d304<br/>ASSERTION"])
53["b22687d9<br/>#quot;version#quot;"]
54["b94ba9a2<br/>#quot;1.3.1#quot;"]
55(["87b4fe55<br/>ASSERTION"])
56[/"8982354d<br/>isA"/]
57["8c645acc<br/>#quot;non-fiction article#quot;"]
58(["da22ca9e<br/>ASSERTION"])
59["7fce2d08<br/>#quot;url#quot;"]
60["fda96fd7<br/>#quot;https://blockchaincommons.com/design-not…#quot;"]
61(["46b8918d<br/>ASSERTION"])
62["4e7cdd69<br/>#quot;alias#quot;"]
63(("115429bb<br/>NODE"))
64["261fc42b<br/>#quot;@carmen@mycarmentsite.com#quot;"]
65(["ee5b6f69<br/>ASSERTION"])
66["c0276d43<br/>#quot;mastodon#quot;"]
67["a2cc6589<br/>#quot;https://mastodon.social/@CarmenT#quot;"]
68(["58711216<br/>ASSERTION"])
69["97dc30c5<br/>#quot;cid#quot;"]
70["601a1a59<br/>#quot;ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfm…#quot;"]
71(["77c587c5<br/>ASSERTION"])
72["d52596f8<br/>#quot;pubkey#quot;"]
73["a1163580<br/>#quot;ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbd…#quot;"]
74(["aff1bb37<br/>ASSERTION"])
75["4e7cdd69<br/>#quot;alias#quot;"]
76["3bc0d518<br/>#quot;admin@cryptfinger.com#quot;"]
77(["ba480823<br/>ASSERTION"])
78["4e7cdd69<br/>#quot;alias#quot;"]
79["37f5a7a1<br/>#quot;carmen@blockchaincommons.com#quot;"]
80(["c1a9c8a1<br/>ASSERTION"])
81[/"8982354d<br/>isA"/]
82["73fca274<br/>#quot;programmer#quot;"]
83(["f78f6b55<br/>ASSERTION"])
84["63a81883<br/>#quot;link#quot;"]
85(("4678aa0e<br/>NODE"))
86["2be32270<br/>#quot;https://www.mycarmentsite.com/docs/resum…#quot;"]
87(["a3d08cc8<br/>ASSERTION"])
88["29e6e5e3<br/>#quot;rel#quot;"]
89["f4f47e81<br/>#quot;resume#quot;"]
90(["ee227143<br/>ASSERTION"])
91["0725fe16<br/>#quot;type#quot;"]
92["f79da2a8<br/>#quot;text/html#quot;"]
93(["fa6f4cc6<br/>ASSERTION"])
94[/"8982354d<br/>isA"/]
95["7b82b07e<br/>#quot;writer#quot;"]
96(["cf57039c<br/>ASSERTION"])
97["7e84d1a9<br/>#quot;verifierInfo#quot;"]
98(("de057405<br/>NODE"))
99["7067ea88<br/>#quot;cryptfinger.com#quot;"]
100(["221b8c49<br/>ASSERTION"])
101["29c0cd61<br/>#quot;pubkeyURL#quot;"]
102["fc7df80f<br/>#quot;ur:crypto-pubkeys/lftaaosehdcximbbhfzscp…#quot;"]
103(["dc20d009<br/>ASSERTION"])
104[/"d59f8c0f<br/>verifiedBy"/]
105["d24356f7<br/>Signature"]
1 -->|subj| 2
2 -->|subj| 3
3 -->|subj| 4
4 -->|subj| 5
5 -->|subj| 6
5 --> 7
7 -->|pred| 8
7 -->|obj| 9
5 --> 10
10 -->|pred| 11
10 -->|obj| 12
12 -->|subj| 13
12 --> 14
14 -->|pred| 15
14 -->|obj| 16
12 --> 17
17 -->|pred| 18
17 -->|obj| 19
12 --> 20
20 -->|pred| 21
20 -->|obj| 22
22 -->|subj| 23
22 --> 24
24 -->|pred| 25
24 -->|obj| 26
22 --> 27
27 -->|pred| 28
27 -->|obj| 29
22 --> 30
30 -->|pred| 31
30 -->|obj| 32
22 --> 33
33 -->|pred| 34
33 -->|obj| 35
12 --> 36
36 -->|pred| 37
36 -->|obj| 38
12 --> 39
39 -->|pred| 40
39 -->|obj| 41
5 --> 42
42 -->|pred| 43
42 -->|obj| 44
5 --> 45
45 -->|pred| 46
45 -->|obj| 47
47 -->|subj| 48
47 --> 49
49 -->|pred| 50
49 -->|obj| 51
47 --> 52
52 -->|pred| 53
52 -->|obj| 54
47 --> 55
55 -->|pred| 56
55 -->|obj| 57
47 --> 58
58 -->|pred| 59
58 -->|obj| 60
5 --> 61
61 -->|pred| 62
61 -->|obj| 63
63 -->|subj| 64
63 --> 65
65 -->|pred| 66
65 -->|obj| 67
5 --> 68
68 -->|pred| 69
68 -->|obj| 70
5 --> 71
71 -->|pred| 72
71 -->|obj| 73
5 --> 74
74 -->|pred| 75
74 -->|obj| 76
5 --> 77
77 -->|pred| 78
77 -->|obj| 79
5 --> 80
80 -->|pred| 81
80 -->|obj| 82
5 --> 83
83 -->|pred| 84
83 -->|obj| 85
85 -->|subj| 86
85 --> 87
87 -->|pred| 88
87 -->|obj| 89
85 --> 90
90 -->|pred| 91
90 -->|obj| 92
5 --> 93
93 -->|pred| 94
93 -->|obj| 95
3 --> 96
96 -->|pred| 97
96 -->|obj| 98
98 -->|subj| 99
98 --> 100
100 -->|pred| 101
100 -->|obj| 102
1 --> 103
103 -->|pred| 104
103 -->|obj| 105
style 1 stroke:red,stroke-width:3.0px
style 2 stroke:red,stroke-width:3.0px
style 3 stroke:red,stroke-width:3.0px
style 4 stroke:red,stroke-width:3.0px
style 5 stroke:red,stroke-width:3.0px
style 6 stroke:#55f,stroke-width:3.0px
style 7 stroke:red,stroke-width:3.0px
style 8 stroke:#55f,stroke-width:3.0px
style 9 stroke:#55f,stroke-width:3.0px
style 10 stroke:red,stroke-width:3.0px
style 11 stroke:#55f,stroke-width:3.0px
style 12 stroke:red,stroke-width:3.0px
style 13 stroke:#55f,stroke-width:3.0px
style 14 stroke:red,stroke-width:3.0px
style 15 stroke:#55f,stroke-width:3.0px
style 16 stroke:#55f,stroke-width:3.0px
style 17 stroke:red,stroke-width:3.0px
style 18 stroke:#55f,stroke-width:3.0px
style 19 stroke:#55f,stroke-width:3.0px
style 20 stroke:red,stroke-width:3.0px
style 21 stroke:#55f,stroke-width:3.0px
style 22 stroke:red,stroke-width:3.0px
style 23 stroke:#55f,stroke-width:3.0px
style 24 stroke:red,stroke-width:3.0px
style 25 stroke:#55f,stroke-width:3.0px
style 26 stroke:#55f,stroke-width:3.0px
style 27 stroke:red,stroke-width:3.0px
style 28 stroke:#55f,stroke-width:3.0px
style 29 stroke:#55f,stroke-width:3.0px
style 30 stroke:red,stroke-width:3.0px
style 31 stroke:#55f,stroke-width:3.0px
style 32 stroke:#55f,stroke-width:3.0px
style 33 stroke:red,stroke-width:3.0px
style 34 stroke:#55f,stroke-width:3.0px
style 35 stroke:#55f,stroke-width:3.0px
style 36 stroke:red,stroke-width:3.0px
style 37 stroke:#55f,stroke-width:3.0px
style 38 stroke:#55f,stroke-width:3.0px
style 39 stroke:red,stroke-width:3.0px
style 40 stroke:#55f,stroke-width:3.0px
style 41 stroke:#55f,stroke-width:3.0px
style 42 stroke:red,stroke-width:3.0px
style 43 stroke:#55f,stroke-width:3.0px
style 44 stroke:#55f,stroke-width:3.0px
style 45 stroke:red,stroke-width:3.0px
style 46 stroke:#55f,stroke-width:3.0px
style 47 stroke:red,stroke-width:3.0px
style 48 stroke:#55f,stroke-width:3.0px
style 49 stroke:red,stroke-width:3.0px
style 50 stroke:#55f,stroke-width:3.0px
style 51 stroke:#55f,stroke-width:3.0px
style 52 stroke:red,stroke-width:3.0px
style 53 stroke:#55f,stroke-width:3.0px
style 54 stroke:#55f,stroke-width:3.0px
style 55 stroke:red,stroke-width:3.0px
style 56 stroke:#55f,stroke-width:3.0px
style 57 stroke:#55f,stroke-width:3.0px
style 58 stroke:red,stroke-width:3.0px
style 59 stroke:#55f,stroke-width:3.0px
style 60 stroke:#55f,stroke-width:3.0px
style 61 stroke:red,stroke-width:3.0px
style 62 stroke:#55f,stroke-width:3.0px
style 63 stroke:red,stroke-width:3.0px
style 64 stroke:#55f,stroke-width:3.0px
style 65 stroke:red,stroke-width:3.0px
style 66 stroke:#55f,stroke-width:3.0px
style 67 stroke:#55f,stroke-width:3.0px
style 68 stroke:red,stroke-width:3.0px
style 69 stroke:#55f,stroke-width:3.0px
style 70 stroke:#55f,stroke-width:3.0px
style 71 stroke:red,stroke-width:3.0px
style 72 stroke:#55f,stroke-width:3.0px
style 73 stroke:#55f,stroke-width:3.0px
style 74 stroke:red,stroke-width:3.0px
style 75 stroke:#55f,stroke-width:3.0px
style 76 stroke:#55f,stroke-width:3.0px
style 77 stroke:red,stroke-width:3.0px
style 78 stroke:#55f,stroke-width:3.0px
style 79 stroke:#55f,stroke-width:3.0px
style 80 stroke:red,stroke-width:3.0px
style 81 stroke:#55f,stroke-width:3.0px
style 82 stroke:#55f,stroke-width:3.0px
style 83 stroke:red,stroke-width:3.0px
style 84 stroke:#55f,stroke-width:3.0px
style 85 stroke:red,stroke-width:3.0px
style 86 stroke:#55f,stroke-width:3.0px
style 87 stroke:red,stroke-width:3.0px
style 88 stroke:#55f,stroke-width:3.0px
style 89 stroke:#55f,stroke-width:3.0px
style 90 stroke:red,stroke-width:3.0px
style 91 stroke:#55f,stroke-width:3.0px
style 92 stroke:#55f,stroke-width:3.0px
style 93 stroke:red,stroke-width:3.0px
style 94 stroke:#55f,stroke-width:3.0px
style 95 stroke:#55f,stroke-width:3.0px
style 96 stroke:red,stroke-width:3.0px
style 97 stroke:#55f,stroke-width:3.0px
style 98 stroke:red,stroke-width:3.0px
style 99 stroke:#55f,stroke-width:3.0px
style 100 stroke:red,stroke-width:3.0px
style 101 stroke:#55f,stroke-width:3.0px
style 102 stroke:#55f,stroke-width:3.0px
style 103 stroke:red,stroke-width:3.0px
style 104 stroke:#55f,stroke-width:3.0px
style 105 stroke:#55f,stroke-width:3.0px
linkStyle 0 stroke:red,stroke-width:2.0px
linkStyle 1 stroke:red,stroke-width:2.0px
linkStyle 2 stroke:red,stroke-width:2.0px
linkStyle 3 stroke:red,stroke-width:2.0px
linkStyle 4 stroke:red,stroke-width:2.0px
linkStyle 5 stroke-width:2.0px
linkStyle 6 stroke:green,stroke-width:2.0px
linkStyle 7 stroke:#55f,stroke-width:2.0px
linkStyle 8 stroke-width:2.0px
linkStyle 9 stroke:green,stroke-width:2.0px
linkStyle 10 stroke:#55f,stroke-width:2.0px
linkStyle 11 stroke:red,stroke-width:2.0px
linkStyle 12 stroke-width:2.0px
linkStyle 13 stroke:green,stroke-width:2.0px
linkStyle 14 stroke:#55f,stroke-width:2.0px
linkStyle 15 stroke-width:2.0px
linkStyle 16 stroke:green,stroke-width:2.0px
linkStyle 17 stroke:#55f,stroke-width:2.0px
linkStyle 18 stroke-width:2.0px
linkStyle 19 stroke:green,stroke-width:2.0px
linkStyle 20 stroke:#55f,stroke-width:2.0px
linkStyle 21 stroke:red,stroke-width:2.0px
linkStyle 22 stroke-width:2.0px
linkStyle 23 stroke:green,stroke-width:2.0px
linkStyle 24 stroke:#55f,stroke-width:2.0px
linkStyle 25 stroke-width:2.0px
linkStyle 26 stroke:green,stroke-width:2.0px
linkStyle 27 stroke:#55f,stroke-width:2.0px
linkStyle 28 stroke-width:2.0px
linkStyle 29 stroke:green,stroke-width:2.0px
linkStyle 30 stroke:#55f,stroke-width:2.0px
linkStyle 31 stroke-width:2.0px
linkStyle 32 stroke:green,stroke-width:2.0px
linkStyle 33 stroke:#55f,stroke-width:2.0px
linkStyle 34 stroke-width:2.0px
linkStyle 35 stroke:green,stroke-width:2.0px
linkStyle 36 stroke:#55f,stroke-width:2.0px
linkStyle 37 stroke-width:2.0px
linkStyle 38 stroke:green,stroke-width:2.0px
linkStyle 39 stroke:#55f,stroke-width:2.0px
linkStyle 40 stroke-width:2.0px
linkStyle 41 stroke:green,stroke-width:2.0px
linkStyle 42 stroke:#55f,stroke-width:2.0px
linkStyle 43 stroke-width:2.0px
linkStyle 44 stroke:green,stroke-width:2.0px
linkStyle 45 stroke:#55f,stroke-width:2.0px
linkStyle 46 stroke:red,stroke-width:2.0px
linkStyle 47 stroke-width:2.0px
linkStyle 48 stroke:green,stroke-width:2.0px
linkStyle 49 stroke:#55f,stroke-width:2.0px
linkStyle 50 stroke-width:2.0px
linkStyle 51 stroke:green,stroke-width:2.0px
linkStyle 52 stroke:#55f,stroke-width:2.0px
linkStyle 53 stroke-width:2.0px
linkStyle 54 stroke:green,stroke-width:2.0px
linkStyle 55 stroke:#55f,stroke-width:2.0px
linkStyle 56 stroke-width:2.0px
linkStyle 57 stroke:green,stroke-width:2.0px
linkStyle 58 stroke:#55f,stroke-width:2.0px
linkStyle 59 stroke-width:2.0px
linkStyle 60 stroke:green,stroke-width:2.0px
linkStyle 61 stroke:#55f,stroke-width:2.0px
linkStyle 62 stroke:red,stroke-width:2.0px
linkStyle 63 stroke-width:2.0px
linkStyle 64 stroke:green,stroke-width:2.0px
linkStyle 65 stroke:#55f,stroke-width:2.0px
linkStyle 66 stroke-width:2.0px
linkStyle 67 stroke:green,stroke-width:2.0px
linkStyle 68 stroke:#55f,stroke-width:2.0px
linkStyle 69 stroke-width:2.0px
linkStyle 70 stroke:green,stroke-width:2.0px
linkStyle 71 stroke:#55f,stroke-width:2.0px
linkStyle 72 stroke-width:2.0px
linkStyle 73 stroke:green,stroke-width:2.0px
linkStyle 74 stroke:#55f,stroke-width:2.0px
linkStyle 75 stroke-width:2.0px
linkStyle 76 stroke:green,stroke-width:2.0px
linkStyle 77 stroke:#55f,stroke-width:2.0px
linkStyle 78 stroke-width:2.0px
linkStyle 79 stroke:green,stroke-width:2.0px
linkStyle 80 stroke:#55f,stroke-width:2.0px
linkStyle 81 stroke-width:2.0px
linkStyle 82 stroke:green,stroke-width:2.0px
linkStyle 83 stroke:#55f,stroke-width:2.0px
linkStyle 84 stroke:red,stroke-width:2.0px
linkStyle 85 stroke-width:2.0px
linkStyle 86 stroke:green,stroke-width:2.0px
linkStyle 87 stroke:#55f,stroke-width:2.0px
linkStyle 88 stroke-width:2.0px
linkStyle 89 stroke:green,stroke-width:2.0px
linkStyle 90 stroke:#55f,stroke-width:2.0px
linkStyle 91 stroke-width:2.0px
linkStyle 92 stroke:green,stroke-width:2.0px
linkStyle 93 stroke:#55f,stroke-width:2.0px
linkStyle 94 stroke-width:2.0px
linkStyle 95 stroke:green,stroke-width:2.0px
linkStyle 96 stroke:#55f,stroke-width:2.0px
linkStyle 97 stroke:red,stroke-width:2.0px
linkStyle 98 stroke-width:2.0px
linkStyle 99 stroke:green,stroke-width:2.0px
linkStyle 100 stroke:#55f,stroke-width:2.0px
linkStyle 101 stroke-width:2.0px
linkStyle 102 stroke:green,stroke-width:2.0px
linkStyle 103 stroke:#55f,stroke-width:2.0px
#3: Carmen Add Chronology to CryptFinger (Timestamp)
- Use Case: Carmen wants to make it obvious which CryptFinger results are the newest.
- Openness Benefit: Despite the freeform ability to redistribute CryptFinger data, the newest results can still be ascertained. This dating data is also verifiable, like the rest of the package.
Because Gordian Envelopes can be saved, stored, and resent, dating them becomes an issue. It’s vital to know whether CryptFinger results are relatively new or grossly out of date. Fortunately, adding verifiable dates is very simple as long as authentication is already being used. A date just needs to be included in verifierInfo. Since that information is afterward signed, the date can be trusted — or at least it can be trusted to the level that a validator trusts the verifier.
{
{
"carmen@cryptfinger.com" [
"alias": "admin@cryptfinger.com"
"alias": "carmen@blockchaincommons.com"
"alias": "carmen@mycarmentsite.com"
"alias": "@carmen@mycarmentsite.com" [
"mastodon": "https://mastodon.social/@CarmenT"
]
"cid": "ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfmynylnecwldpapafskphsgwfgmdgwmusthlzecfltiosskorers"
"hasPublication": "Cryptfinger Design Notes" [
"pubdate": "2022-10-11"
"url": "https://blockchaincommons.com/design-notes/cryptfinger.html"
"version": "1.3.1"
isA: "non-fiction article"
]
"hasPublication": "Zen and the Art of Cryptfinger Design" [
"ISBN-13": "978-1-04-876475-8"
"hasTranslation": "Zen y el arte del diseño Cryptfinger" [
"ISBN-13": "978-0-421-94892-1"
"language": "es"
"pubDate": "2022-02-22"
isA: "non-fiction book"
]
"language": "en"
"pubDate": "2022-01-17"
isA: "non-fiction book"
]
"link": "https://www.mycarmentsite.com/docs/resume2022.html" [
"rel": "resume"
"type": "text/html"
]
"phoneNumber": "510-555-0143"
"pubkey": "ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbdbbnlmdpsvtrllpchlomeutbzrhcxdputiarhlrtpfhsaiygdayzswetpvahdcxsfmocxiarketgeoemyaawmiogyftjyfwvaolndimuolgwlsrdyoyhddwgwjyjefylylnpdoe"
isA: "programmer"
isA: "writer"
]
} [
"verifierInfo": "cryptfinger.com" [
"pubkeyURL": "ur:crypto-pubkeys/lftaaosehdcximbbhfzscptyrdptctdiykhskekgpmashheslnfdrepfrljonnglaevoasremulytpvahdcxfxlssfkiaogyeyrtaszeluzmgedkcppdwyfdzcdryntdtplkinlbmkskjkrlnnjngsbemhne"
"timeStamp": "1671062936"
]
]
} [
verifiedBy: Signature
]
graph LR
1(("3c1cc7e5<br/>NODE"))
2[/"4facf50f<br/>WRAPPED"\]
3(("4a6d0203<br/>NODE"))
4[/"59b76ff6<br/>WRAPPED"\]
5(("8ebf197c<br/>NODE"))
6["4f59e396<br/>#quot;carmen@cryptfinger.com#quot;"]
7(["0595bb3a<br/>ASSERTION"])
8["4e7cdd69<br/>#quot;alias#quot;"]
9["09cfa295<br/>#quot;carmen@mycarmentsite.com#quot;"]
10(["152f509c<br/>ASSERTION"])
11["7ed9572e<br/>#quot;hasPublication#quot;"]
12(("2c51cecb<br/>NODE"))
13["14dce19e<br/>#quot;Zen and the Art of Cryptfinger Design#quot;"]
14(["18048890<br/>ASSERTION"])
15["c91b36b2<br/>#quot;pubDate#quot;"]
16["ae96f205<br/>#quot;2022-01-17#quot;"]
17(["76f63c9c<br/>ASSERTION"])
18["0846979e<br/>#quot;language#quot;"]
19["409b5893<br/>#quot;en#quot;"]
20(["7c4c63e7<br/>ASSERTION"])
21["d41c6a7e<br/>#quot;hasTranslation#quot;"]
22(("8dc1f383<br/>NODE"))
23["91ee71f8<br/>#quot;Zen y el arte del diseño Cryptfinger#quot;"]
24(["23335db9<br/>ASSERTION"])
25["c91b36b2<br/>#quot;pubDate#quot;"]
26["c4f05fb4<br/>#quot;2022-02-22#quot;"]
27(["2c5d3a5f<br/>ASSERTION"])
28["10a46e16<br/>#quot;ISBN-13#quot;"]
29["4ed1acab<br/>#quot;978-0-421-94892-1#quot;"]
30(["9db68d01<br/>ASSERTION"])
31["0846979e<br/>#quot;language#quot;"]
32["dd2f866d<br/>#quot;es#quot;"]
33(["bcf92721<br/>ASSERTION"])
34[/"8982354d<br/>isA"/]
35["fde87c34<br/>#quot;non-fiction book#quot;"]
36(["bcf92721<br/>ASSERTION"])
37[/"8982354d<br/>isA"/]
38["fde87c34<br/>#quot;non-fiction book#quot;"]
39(["e0afce84<br/>ASSERTION"])
40["10a46e16<br/>#quot;ISBN-13#quot;"]
41["18e2fcf5<br/>#quot;978-1-04-876475-8#quot;"]
42(["320d0c70<br/>ASSERTION"])
43["bf9638d1<br/>#quot;phoneNumber#quot;"]
44["48af8880<br/>#quot;510-555-0143#quot;"]
45(["366c06f1<br/>ASSERTION"])
46["7ed9572e<br/>#quot;hasPublication#quot;"]
47(("3b6cf8f0<br/>NODE"))
48["8edf5b50<br/>#quot;Cryptfinger Design Notes#quot;"]
49(["3a9a5b75<br/>ASSERTION"])
50["0e0066da<br/>#quot;pubdate#quot;"]
51["54ac7f35<br/>#quot;2022-10-11#quot;"]
52(["4514d304<br/>ASSERTION"])
53["b22687d9<br/>#quot;version#quot;"]
54["b94ba9a2<br/>#quot;1.3.1#quot;"]
55(["87b4fe55<br/>ASSERTION"])
56[/"8982354d<br/>isA"/]
57["8c645acc<br/>#quot;non-fiction article#quot;"]
58(["da22ca9e<br/>ASSERTION"])
59["7fce2d08<br/>#quot;url#quot;"]
60["fda96fd7<br/>#quot;https://blockchaincommons.com/design-not…#quot;"]
61(["46b8918d<br/>ASSERTION"])
62["4e7cdd69<br/>#quot;alias#quot;"]
63(("115429bb<br/>NODE"))
64["261fc42b<br/>#quot;@carmen@mycarmentsite.com#quot;"]
65(["ee5b6f69<br/>ASSERTION"])
66["c0276d43<br/>#quot;mastodon#quot;"]
67["a2cc6589<br/>#quot;https://mastodon.social/@CarmenT#quot;"]
68(["58711216<br/>ASSERTION"])
69["97dc30c5<br/>#quot;cid#quot;"]
70["601a1a59<br/>#quot;ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfm…#quot;"]
71(["77c587c5<br/>ASSERTION"])
72["d52596f8<br/>#quot;pubkey#quot;"]
73["a1163580<br/>#quot;ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbd…#quot;"]
74(["aff1bb37<br/>ASSERTION"])
75["4e7cdd69<br/>#quot;alias#quot;"]
76["3bc0d518<br/>#quot;admin@cryptfinger.com#quot;"]
77(["ba480823<br/>ASSERTION"])
78["4e7cdd69<br/>#quot;alias#quot;"]
79["37f5a7a1<br/>#quot;carmen@blockchaincommons.com#quot;"]
80(["c1a9c8a1<br/>ASSERTION"])
81[/"8982354d<br/>isA"/]
82["73fca274<br/>#quot;programmer#quot;"]
83(["f78f6b55<br/>ASSERTION"])
84["63a81883<br/>#quot;link#quot;"]
85(("4678aa0e<br/>NODE"))
86["2be32270<br/>#quot;https://www.mycarmentsite.com/docs/resum…#quot;"]
87(["a3d08cc8<br/>ASSERTION"])
88["29e6e5e3<br/>#quot;rel#quot;"]
89["f4f47e81<br/>#quot;resume#quot;"]
90(["ee227143<br/>ASSERTION"])
91["0725fe16<br/>#quot;type#quot;"]
92["f79da2a8<br/>#quot;text/html#quot;"]
93(["fa6f4cc6<br/>ASSERTION"])
94[/"8982354d<br/>isA"/]
95["7b82b07e<br/>#quot;writer#quot;"]
96(["093f17ab<br/>ASSERTION"])
97["7e84d1a9<br/>#quot;verifierInfo#quot;"]
98(("7b64b5b2<br/>NODE"))
99["7067ea88<br/>#quot;cryptfinger.com#quot;"]
100(["221b8c49<br/>ASSERTION"])
101["29c0cd61<br/>#quot;pubkeyURL#quot;"]
102["fc7df80f<br/>#quot;ur:crypto-pubkeys/lftaaosehdcximbbhfzscp…#quot;"]
103(["4001d133<br/>ASSERTION"])
104["fb07d301<br/>#quot;timeStamp#quot;"]
105["fd5a507f<br/>#quot;1671062936#quot;"]
106(["36371f98<br/>ASSERTION"])
107[/"d59f8c0f<br/>verifiedBy"/]
108["ce83e4c5<br/>Signature"]
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This is just one option for timestamping Gordian Envelopes.
If a simpler method of checking chronology among envelopes was required, possibly without any internet access, then an incrementing number could be included: each time the CryptFinger data was updated, the value would go up by one. This wouldn’t allow a CryptFinger to be dated, but it would allow for the determination of the newest result from any pair of results.
If a less-centralized method of timestamping was required, that didn’t depend on the verification of a single party, then a result could be stored in a ledger with strong write-only properties. The identifier and the hash of the signed Envelope could be stored together (e.g. “carmen@cryptfinger.com: 0fdbc99e”), allowing the ledger’s timestamp to be absolutely tied to a specific version of an Envelope.
To make it easier to lookup the timestamp, the signed envelope could be wrapped, and a pointer to the ledger entry could be added to that wrapped envelope as a new assertion. In pseudo-code, the result would like something like this:
"SIGNED ENVELOPE" [
"blockchainTimestamp": "https://www.blockchainenvelopetimestamp.com/198123"
]
That new version of the Envelope could even be signed by the original Verifier!
Part Two: Private CryptFinger
Authentication can create strong advantages for data lookup, for verifying data, for creating portable data, and for adding additional data such as timestamps. However, the biggest advantages in CryptFinger come with the usage of elision. Now, data can be displayed dynamically so that different things are shown to different people, all without changing either the core authentication of an Envelope or its hash — which might be registered in other places such as a timestamping ledger. Specific use cases reveal: how to elide data; how to allow data proof without explicit revelation; and how to progressively reveal data.
#4: Carmen Protects CryptFinger (Elision)
- Problem Solved: Carmen doesn’t want to make all of her data available to everyone.
- Independent Benefits: Carmen chooses which data is released to which places.
- Privacy Benefits: Carmen removes data that shouldn’t go out to the general public.
- Openness Benefits: The same data is sent to different places, but it’s elided in different ways. This allows for the support of privacy while maintaining openness benefits that come from the authentication and dating used by CryptFinger.
Not all of Carmen’s data is appropriate for everyone to see. In particular, she’d like for her phone number to be available to members of her company but not to the general public. This is easy enough to do on the internet: the phone number can be given out to people who access Carmen’s CryptFinger from a company network but not to those who access from outside the company network.
How to display that info is a totally different question. A classic data retrieval program would just issue different responses in different situations. Unfortunately when data is authenticated and even timestamped, doing so becomes increasingly problematic. Do you repeatedly sign every variation of the CryptFinger? Do you add a new timestamp, even if the underlying data has not changed? If you don’t, how do you determine which data response is canonical, especially in situations where multiple responses are all subsets of the original data set, but not necessarily subsets of each other?
Fortunately, Gordian Envelope offers an answer to this: data can be elided. When doing so, hashes remain consistent. As a result, users can see something has been removed, and authentication remains valid. More notably, multiple elided trees are still obviously parallel, leaving them all canonical (but some with partial data sets). Multiple subsets of the same data could even be merged together!
However, when data has been elided, the underlying data can not be determined (unless it proves correlatable, either purposefully, as in one of the following examples, or accidentally, as a result of poor design).
Ultimately, Carmen decides that the public should only see the most minimal version of CryptFinger, containing a cid and a pubkey and nothing more:
{
{
"carmen@cryptfinger.com" [
"cid": "ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfmynylnecwldpapafskphsgwfgmdgwmusthlzecfltiosskorers"
"pubkey": "ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbdbbnlmdpsvtrllpchlomeutbzrhcxdputiarhlrtpfhsaiygdayzswetpvahdcxsfmocxiarketgeoemyaawmiogyftjyfwvaolndimuolgwlsrdyoyhddwgwjyjefylylnpdoe"
ELIDED (10)
]
} [
"verifierInfo": "cryptfinger.com" [
"pubkeyURL": "ur:crypto-pubkeys/lftaaosehdcximbbhfzscptyrdptctdiykhskekgpmashheslnfdrepfrljonnglaevoasremulytpvahdcxfxlssfkiaogyeyrtaszeluzmgedkcppdwyfdzcdryntdtplkinlbmkskjkrlnnjngsbemhne"
"timeStamp": "1671062936"
]
]
} [
verifiedBy: Signature
]
graph LR
1(("3c1cc7e5<br/>NODE"))
2[/"4facf50f<br/>WRAPPED"\]
3(("4a6d0203<br/>NODE"))
4[/"59b76ff6<br/>WRAPPED"\]
5(("8ebf197c<br/>NODE"))
6["4f59e396<br/>#quot;carmen@cryptfinger.com#quot;"]
70595bb3a<br/>ELIDED
8152f509c<br/>ELIDED
9320d0c70<br/>ELIDED
10366c06f1<br/>ELIDED
1146b8918d<br/>ELIDED
12(["58711216<br/>ASSERTION"])
13["97dc30c5<br/>#quot;cid#quot;"]
14["601a1a59<br/>#quot;ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfm…#quot;"]
15(["77c587c5<br/>ASSERTION"])
16["d52596f8<br/>#quot;pubkey#quot;"]
17["a1163580<br/>#quot;ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbd…#quot;"]
18aff1bb37<br/>ELIDED
19ba480823<br/>ELIDED
20c1a9c8a1<br/>ELIDED
21f78f6b55<br/>ELIDED
22fa6f4cc6<br/>ELIDED
23(["093f17ab<br/>ASSERTION"])
24["7e84d1a9<br/>#quot;verifierInfo#quot;"]
25(("7b64b5b2<br/>NODE"))
26["7067ea88<br/>#quot;cryptfinger.com#quot;"]
27(["221b8c49<br/>ASSERTION"])
28["29c0cd61<br/>#quot;pubkeyURL#quot;"]
29["fc7df80f<br/>#quot;ur:crypto-pubkeys/lftaaosehdcximbbhfzscp…#quot;"]
30(["4001d133<br/>ASSERTION"])
31["fb07d301<br/>#quot;timeStamp#quot;"]
32["fd5a507f<br/>#quot;1671062936#quot;"]
33(["36371f98<br/>ASSERTION"])
34[/"d59f8c0f<br/>verifiedBy"/]
35["ce83e4c5<br/>Signature"]
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linkStyle 33 stroke:#55f,stroke-width:2.0px
Note that the overall hash of the Merkle-tree used by Gordian Envelope remains the same: 3c1cc7e5. In addition, the signature remains valid, even though information has been elided and the data has not been signed again. Carmen was able to choose what went out to the general public without spoiling the verification of her data!
Anyone inside of Carmen’s company who can see the complete CryptFinger results will know that it matches this external result because it contains the same hash. As a result, there’s no need to determine if one is newer than the other!
#5: Carmen Makes CryptFinger Provable (Inclusion Proof)
- Use Case: Carmen wants to make her aliases verifiable.
- Independence Benefits: Carmen not only chooses what data goes out to the public, but she can also choose to allow users to create correlation of their own by revealing the data structure.
- Privacy Benefits: The core of Carmen’s data remains private, even while she’s offering proofs that build on that data! Only people who already know the data can prove its existence. There’s no actual publication.
Carmen does not want to publicly publish her aliases, such as carmen@blockchaincommons.com, because doing so would just increase the amount of spam that she receives at those accounts. However, she does want to make those aliases verifiable. If someone wants to know if carmen@blockchaincommons.com is also carmen@cryptfinger.com she wants to allow them to verify that in an easily automatable way that doesn’t require her to do anything. Fortunately, this is trivial given the CryptFinger structure that she has created.
All that Carmen needs to do is reveal how aliases are stored within her WebFinger structure. Once she has, anyone can create an assertion for alias anyaddress@anysite, properly lower casing the address per Carmen’s specification, and test that against an inclusion proof to show whether it’s included in Carmen’s ELIDED results.
Here’ an assertion that could be written for Carmen’s Blockchain Commons alias:
"alias": "carmen@blockchaincommons.com"
graph LR
1(["ba480823<br/>ASSERTION"])
2["4e7cdd69<br/>#quot;alias#quot;"]
3["37f5a7a1<br/>#quot;carmen@blockchaincommons.com#quot;"]
1 -->|pred| 2
1 -->|obj| 3
style 1 stroke:red,stroke-width:3.0px
style 2 stroke:#55f,stroke-width:3.0px
style 3 stroke:#55f,stroke-width:3.0px
linkStyle 0 stroke:green,stroke-width:2.0px
linkStyle 1 stroke:#55f,stroke-width:2.0px
Once a user has created that assertion, they can compare its hash (ba480823) to the ELIDED assertions in Carmen’s CryptFinger. They’ll discover that one of the ELIDED assertions hashes to ba480823. This verifies their knowledge of Carmen’s alias without anyone ever publishing it!
Keep in mind, this sort of selective correlation should always be a choice. Carmen chose to make her information correlatable to people who already knew it (or at the least were willing to search for the information) by publishing the format of her assertion and by not making any attempts to hide that correlation.
If Carmen instead wanted to block correlation, for example if she didn’t want people to be able to guess her phone number, which they could theoretically do if they knew the data format, by going through every phone number in America (or maybe just in her local area), she could easily select to avoid that correlation by adding salt to an assertion, as in the “Sam is Salty about Correlation” use case. Other methodologies are also possible, such as restructuring data into bundles so that singular hashes do not refer to singular assertions without the revelation of additional data, an example of which is provided in the “Paul Proves Proficiency with Improved Privacy” use case.
#6: Carmen Makes CryptFinger Progressive (Progressive Trust)
- Use Case: Carmen wants to progressively reveal information over time.
- Independence Benefits: Carmen chooses not just which data to reveal, but also when: it’s all under her control.
- Privacy Benefits: Carmen chooses to reveal private information only when she’s gained sufficient connection to someone, or alternatively when someone reveals they already know something related to the private data.
Though Carmen is initially limiting CryptFinger information released outside of her company, she wants to be able to progressively release additional information as she gains trust with external users. This model of progressive trust is how trust works in the real-world, when we meet people, introduce ourselves, and slowly give them more information about ourselves. It makes sense for CryptFinger to follow that same methodology.
This could be done by hand, based on growing connection to another person. Less elided Envelopes would be sent to the person over time. Carmen could introduce her publications quite early, as they’re pretty public information. She might next prioritize her aliases and introduce them as someone else introduces themselves. The resume link might only go to people she’s affirmed are potential employers. She might save her phone number to only be given to someone who she’s created a real connection with, and perhaps even met in person. The other user can meanwhile continue to verify that the information all links to Carmen, as any new Gordian Envelopes will match the signatures and hashes of existing Gordian Envelopes (presuming they’re just revelations of a previously elided Envelope).
However, algorithmic progressive-trust designs could be even more powerful, as they could allow Carmen to automatically reveal more information from her CryptFinger without having to make a decision at every stage. One methodology might be for a remote user to create an inclusion proof to reveal that they know something about Carmen, and then receive additional data related to that proof. This would be easy to automate, as a configuration file could list what inclusions-proofs would lead to what additional revelations.
For example, another user might prove that they know Carmen isA programmer:
isA: "programmer"
graph LR
1(["c1a9c8a1<br/>ASSERTION"])
2[/"8982354d<br/>isA"/]
3["73fca274<br/>#quot;programmer#quot;"]
1 -->|pred| 2
1 -->|obj| 3
style 1 stroke:red,stroke-width:3.0px
style 2 stroke:#55f,stroke-width:3.0px
style 3 stroke:#55f,stroke-width:3.0px
linkStyle 0 stroke:green,stroke-width:2.0px
linkStyle 1 stroke:#55f,stroke-width:2.0px
The assertion is visible as the hash of one of the elisions: c1a9c8a1. Seeing that the user knew that fact, WebFinger would then be authorized to release a new (less elided) version of the Envelope that includes information on Carmen’s technical article:
{
{
"carmen@cryptfinger.com" [
"cid": "ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfmynylnecwldpapafskphsgwfgmdgwmusthlzecfltiosskorers"
"hasPublication": "Cryptfinger Design Notes" [
"pubdate": "2022-10-11"
"url": "https://blockchaincommons.com/design-notes/cryptfinger.html"
"version": "1.3.1"
isA: "non-fiction article"
]
"pubkey": "ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbdbbnlmdpsvtrllpchlomeutbzrhcxdputiarhlrtpfhsaiygdayzswetpvahdcxsfmocxiarketgeoemyaawmiogyftjyfwvaolndimuolgwlsrdyoyhddwgwjyjefylylnpdoe"
isA: "programmer"
ELIDED (8)
]
} [
"verifierInfo": "cryptfinger.com" [
"pubkeyURL": "ur:crypto-pubkeys/lftaaosehdcximbbhfzscptyrdptctdiykhskekgpmashheslnfdrepfrljonnglaevoasremulytpvahdcxfxlssfkiaogyeyrtaszeluzmgedkcppdwyfdzcdryntdtplkinlbmkskjkrlnnjngsbemhne"
"timeStamp": "1671062936"
]
]
} [
verifiedBy: Signature
]
graph LR
1(("3c1cc7e5<br/>NODE"))
2[/"4facf50f<br/>WRAPPED"\]
3(("4a6d0203<br/>NODE"))
4[/"59b76ff6<br/>WRAPPED"\]
5(("8ebf197c<br/>NODE"))
6["4f59e396<br/>#quot;carmen@cryptfinger.com#quot;"]
70595bb3a<br/>ELIDED
8152f509c<br/>ELIDED
9320d0c70<br/>ELIDED
10(["366c06f1<br/>ASSERTION"])
11["7ed9572e<br/>#quot;hasPublication#quot;"]
12(("3b6cf8f0<br/>NODE"))
13["8edf5b50<br/>#quot;Cryptfinger Design Notes#quot;"]
14(["3a9a5b75<br/>ASSERTION"])
15["0e0066da<br/>#quot;pubdate#quot;"]
16["54ac7f35<br/>#quot;2022-10-11#quot;"]
17(["4514d304<br/>ASSERTION"])
18["b22687d9<br/>#quot;version#quot;"]
19["b94ba9a2<br/>#quot;1.3.1#quot;"]
20(["87b4fe55<br/>ASSERTION"])
21[/"8982354d<br/>isA"/]
22["8c645acc<br/>#quot;non-fiction article#quot;"]
23(["da22ca9e<br/>ASSERTION"])
24["7fce2d08<br/>#quot;url#quot;"]
25["fda96fd7<br/>#quot;https://blockchaincommons.com/design-not…#quot;"]
2646b8918d<br/>ELIDED
27(["58711216<br/>ASSERTION"])
28["97dc30c5<br/>#quot;cid#quot;"]
29["601a1a59<br/>#quot;ur:crypto-cid/hdcxrtgorddsrnfmryleehhnfm…#quot;"]
30(["77c587c5<br/>ASSERTION"])
31["d52596f8<br/>#quot;pubkey#quot;"]
32["a1163580<br/>#quot;ur:crypto-pubkeys/lftaaosehdcxwpjnrpftbd…#quot;"]
33aff1bb37<br/>ELIDED
34ba480823<br/>ELIDED
35(["c1a9c8a1<br/>ASSERTION"])
36[/"8982354d<br/>isA"/]
37["73fca274<br/>#quot;programmer#quot;"]
38f78f6b55<br/>ELIDED
39fa6f4cc6<br/>ELIDED
40(["093f17ab<br/>ASSERTION"])
41["7e84d1a9<br/>#quot;verifierInfo#quot;"]
42(("7b64b5b2<br/>NODE"))
43["7067ea88<br/>#quot;cryptfinger.com#quot;"]
44(["221b8c49<br/>ASSERTION"])
45["29c0cd61<br/>#quot;pubkeyURL#quot;"]
46["fc7df80f<br/>#quot;ur:crypto-pubkeys/lftaaosehdcximbbhfzscp…#quot;"]
47(["4001d133<br/>ASSERTION"])
48["fb07d301<br/>#quot;timeStamp#quot;"]
49["fd5a507f<br/>#quot;1671062936#quot;"]
50(["36371f98<br/>ASSERTION"])
51[/"d59f8c0f<br/>verifiedBy"/]
52["ce83e4c5<br/>Signature"]
1 -->|subj| 2
2 -->|subj| 3
3 -->|subj| 4
4 -->|subj| 5
5 -->|subj| 6
5 --> 7
5 --> 8
5 --> 9
5 --> 10
10 -->|pred| 11
10 -->|obj| 12
12 -->|subj| 13
12 --> 14
14 -->|pred| 15
14 -->|obj| 16
12 --> 17
17 -->|pred| 18
17 -->|obj| 19
12 --> 20
20 -->|pred| 21
20 -->|obj| 22
12 --> 23
23 -->|pred| 24
23 -->|obj| 25
5 --> 26
5 --> 27
27 -->|pred| 28
27 -->|obj| 29
5 --> 30
30 -->|pred| 31
30 -->|obj| 32
5 --> 33
5 --> 34
5 --> 35
35 -->|pred| 36
35 -->|obj| 37
5 --> 38
5 --> 39
3 --> 40
40 -->|pred| 41
40 -->|obj| 42
42 -->|subj| 43
42 --> 44
44 -->|pred| 45
44 -->|obj| 46
42 --> 47
47 -->|pred| 48
47 -->|obj| 49
1 --> 50
50 -->|pred| 51
50 -->|obj| 52
style 1 stroke:red,stroke-width:3.0px
style 2 stroke:red,stroke-width:3.0px
style 3 stroke:red,stroke-width:3.0px
style 4 stroke:red,stroke-width:3.0px
style 5 stroke:red,stroke-width:3.0px
style 6 stroke:#55f,stroke-width:3.0px
style 7 stroke:#55f,stroke-width:3.0px,stroke-dasharray:5.0 5.0
style 8 stroke:#55f,stroke-width:3.0px,stroke-dasharray:5.0 5.0
style 9 stroke:#55f,stroke-width:3.0px,stroke-dasharray:5.0 5.0
style 10 stroke:red,stroke-width:3.0px
style 11 stroke:#55f,stroke-width:3.0px
style 12 stroke:red,stroke-width:3.0px
style 13 stroke:#55f,stroke-width:3.0px
style 14 stroke:red,stroke-width:3.0px
style 15 stroke:#55f,stroke-width:3.0px
style 16 stroke:#55f,stroke-width:3.0px
style 17 stroke:red,stroke-width:3.0px
style 18 stroke:#55f,stroke-width:3.0px
style 19 stroke:#55f,stroke-width:3.0px
style 20 stroke:red,stroke-width:3.0px
style 21 stroke:#55f,stroke-width:3.0px
style 22 stroke:#55f,stroke-width:3.0px
style 23 stroke:red,stroke-width:3.0px
style 24 stroke:#55f,stroke-width:3.0px
style 25 stroke:#55f,stroke-width:3.0px
style 26 stroke:#55f,stroke-width:3.0px,stroke-dasharray:5.0 5.0
style 27 stroke:red,stroke-width:3.0px
style 28 stroke:#55f,stroke-width:3.0px
style 29 stroke:#55f,stroke-width:3.0px
style 30 stroke:red,stroke-width:3.0px
style 31 stroke:#55f,stroke-width:3.0px
style 32 stroke:#55f,stroke-width:3.0px
style 33 stroke:#55f,stroke-width:3.0px,stroke-dasharray:5.0 5.0
style 34 stroke:#55f,stroke-width:3.0px,stroke-dasharray:5.0 5.0
style 35 stroke:red,stroke-width:3.0px
style 36 stroke:#55f,stroke-width:3.0px
style 37 stroke:#55f,stroke-width:3.0px
style 38 stroke:#55f,stroke-width:3.0px,stroke-dasharray:5.0 5.0
style 39 stroke:#55f,stroke-width:3.0px,stroke-dasharray:5.0 5.0
style 40 stroke:red,stroke-width:3.0px
style 41 stroke:#55f,stroke-width:3.0px
style 42 stroke:red,stroke-width:3.0px
style 43 stroke:#55f,stroke-width:3.0px
style 44 stroke:red,stroke-width:3.0px
style 45 stroke:#55f,stroke-width:3.0px
style 46 stroke:#55f,stroke-width:3.0px
style 47 stroke:red,stroke-width:3.0px
style 48 stroke:#55f,stroke-width:3.0px
style 49 stroke:#55f,stroke-width:3.0px
style 50 stroke:red,stroke-width:3.0px
style 51 stroke:#55f,stroke-width:3.0px
style 52 stroke:#55f,stroke-width:3.0px
linkStyle 0 stroke:red,stroke-width:2.0px
linkStyle 1 stroke:red,stroke-width:2.0px
linkStyle 2 stroke:red,stroke-width:2.0px
linkStyle 3 stroke:red,stroke-width:2.0px
linkStyle 4 stroke:red,stroke-width:2.0px
linkStyle 5 stroke-width:2.0px
linkStyle 6 stroke-width:2.0px
linkStyle 7 stroke-width:2.0px
linkStyle 8 stroke-width:2.0px
linkStyle 9 stroke:green,stroke-width:2.0px
linkStyle 10 stroke:#55f,stroke-width:2.0px
linkStyle 11 stroke:red,stroke-width:2.0px
linkStyle 12 stroke-width:2.0px
linkStyle 13 stroke:green,stroke-width:2.0px
linkStyle 14 stroke:#55f,stroke-width:2.0px
linkStyle 15 stroke-width:2.0px
linkStyle 16 stroke:green,stroke-width:2.0px
linkStyle 17 stroke:#55f,stroke-width:2.0px
linkStyle 18 stroke-width:2.0px
linkStyle 19 stroke:green,stroke-width:2.0px
linkStyle 20 stroke:#55f,stroke-width:2.0px
linkStyle 21 stroke-width:2.0px
linkStyle 22 stroke:green,stroke-width:2.0px
linkStyle 23 stroke:#55f,stroke-width:2.0px
linkStyle 24 stroke-width:2.0px
linkStyle 25 stroke-width:2.0px
linkStyle 26 stroke:green,stroke-width:2.0px
linkStyle 27 stroke:#55f,stroke-width:2.0px
linkStyle 28 stroke-width:2.0px
linkStyle 29 stroke:green,stroke-width:2.0px
linkStyle 30 stroke:#55f,stroke-width:2.0px
linkStyle 31 stroke-width:2.0px
linkStyle 32 stroke-width:2.0px
linkStyle 33 stroke-width:2.0px
linkStyle 34 stroke:green,stroke-width:2.0px
linkStyle 35 stroke:#55f,stroke-width:2.0px
linkStyle 36 stroke-width:2.0px
linkStyle 37 stroke-width:2.0px
linkStyle 38 stroke-width:2.0px
linkStyle 39 stroke:green,stroke-width:2.0px
linkStyle 40 stroke:#55f,stroke-width:2.0px
linkStyle 41 stroke:red,stroke-width:2.0px
linkStyle 42 stroke-width:2.0px
linkStyle 43 stroke:green,stroke-width:2.0px
linkStyle 44 stroke:#55f,stroke-width:2.0px
linkStyle 45 stroke-width:2.0px
linkStyle 46 stroke:green,stroke-width:2.0px
linkStyle 47 stroke:#55f,stroke-width:2.0px
linkStyle 48 stroke-width:2.0px
linkStyle 49 stroke:green,stroke-width:2.0px
linkStyle 50 stroke:#55f,stroke-width:2.0px
Revelation that Carmen isA author could similarly reveal information on her book, while revelation of Carmen’s phone number could be enough to reveal everything else! The exact design of progressive trust can vary from sitaution to situation, but the automated back-and-forth of increasing information exchange should always stay the same.
Part Three: Herd Private CryptFinger
A variant of CryptFinger might support herd privacy. This would allow individuals to reveal or hide their membership in a group based on their personal preferences.
- Independence Benefits: A holder chooses whether to reveal their presence in a herd of data or not, as they see fit.
- Privacy Benefits: Data about the holder is never released unless they do so; even the issuer could have very limited information on the holder.
In this variant, the CryptFinger server might create a list of everyone on the server, active or inactive. It’s the most basic use of a finger command:
"cryptfinger.com" [
"active": "admin"
"active": "carmen"
"active": "elmer"
"active": "gary"
"active": "lucy"
"active": "mango"
"inactive": "donnie"
"inactive": "karen"
"inactive": "sheena"
"inactive": "sianora"
]
It would then entirely elide that list before releasing it:
"cryptfinger.com" [
ELIDED (10)
]
Individual users could then use inclusion proofs to demonstrate that those ELIDED entries match their active (or inactive) accounts on cryptfinger.com, but if they didn’t they could stay largely anonymous in the herd of accounts listed.
See the Educational Use Cases for more precise examples of how herd privacy can be supported with long listings of this sort, and how that can be improved with techniques such as salting and restructuring entries.
Part Four: Data Distribution Advancements
There are many other ways that the “CryptFinger” user-data system could be expanded, building on the benefits of its cryptographic elements. These include:
- Signed Metadata. Data elements could be individually signed. The user might sign aliases and links, to verify their authenticity; or other parties might sign data to offer their own verification of the data.
- Provable Metadata. Aggregate data could be published, with the individual data elements being elided, but those data elements could then be proven through inclusion proofs. For example, a user might release a list of 10,000 elided followers, and any of those followers could prove who they are by matching an elision hash; or a professor working on a paper might maintain an elided list of references while his paper is in process, and reveal an individual entry when he’s accused of using the source without credit, but only reveal the full list upon publication. Again, see the Herd Privacy examples in Educational Use Cases.
- Repackaged Metadata. Because the sample CryptFinger is signed, its content can be used in other venues. For example, a publisher printing a new article by Carmen could capture her CryptFinger data, elide out anything that’s irrelevent, and publish it as an “About the Author” that contains provable information known to have originated the
carmen@cryptfinger.comaccount. See “Thunder & Lightning Spotlights Danika” in the Educational Use Cases for a repackaging example. - Public Key Permits. These examples focus on authentication and elision, but Gordian Envelope also has a powerful encryption system that allows for the use of multiple permits to decode that information. Specific data in CryptFinger could be encrypted, with the decryption possible only by a small set of private keys, which are defined in the Envelope through their public keys. This could allow a user to release specific information in her CryptFinger, such as her phone number or address, that she wants specific people to see. See “Sam Promotes a Partner” in the Financial Use Cases for a look at how multi-permits work.
- Threshhold Permits. Gordian Envelope Permits can also allow the decryption of data based on the reunification of sharded keys. This allows for the creation of threshold permits where the data can only be revealed if enough people come together. This might allow the inclusion of data such as a will, where a lawyer, an accountant, and an executor have to come together to reveal the information. See “Sam Gets Rigorous About Resilience” in the Financial Use Cases for an example of an SSKR-based permit.
Incorporating cryptography into a data-distribution system gives us lots and lots of future possibilities. If you have your own ideas for additional use cases, please feel free to file an Issue and tell us about it.