more-info message

Messages of type more-info are PRIVATE messages sent from one feed to itself. They attach additional metadata to a user. They are used to provide address book features to SSB. Only the issuer of a more-info message can read them, so the data attached to a profile is private.

What they look like

{
  "key": "%buRChnotexistk/WjZQsfsgsg17XHmSDnMMKfFEXv/bjL43lQ=.sha256",
  "value": {
    "previous": null,
    "sequence": 1,
    "author": "@G/zUdqlPsdgsgd8yXIfMjx1676ApAOghwgc=.ed25519",
    "timestamp": 1560287825423,
    "hash": "sha256",
    "content": {
      "type": "more-info",
      "about": "@G/zUdqlPMsdgsdg8yXIfMjx1676ApAOghwgc=.ed25519",
      "luckyNumbers": ["1","2","3"],
      "fields": [
        {"name": "primary email", "type": "email", "value": "example@example.com"},
        {"name": "blog", "type": "URL", "value": "https://example.com"}
      ]
    },
    "signature": "UMjf4aFsdgsgUY9zeDAqWdTZeymoQznicvfgATu0/aaaa==.sig.ed25519"
  },
  "timestamp": 1560288248693,
  "rts": 1560287825423
}

• about: This field should contain a feed id.
• luckyNumbers: An array of numbers that is used to beef-up the cryptographic safety of the message. They provide some randomness to the data so that bad actors who know part of the other fields can’t brute force and discover the keys more easily.
• fields: An array of objects containing extra data about the user specified in the about field.
  • Each object in this array has a label that is displayed in the application UI, a type which dictates what kind of data it is holding, and a value which holds the data.

The more-info message contains all the more information about a given user. Applications when editing or updating that information send a complete final snapshot of all fields. An application should only read the last more-info message about a user and ignore any previous one (they should be treated as older versions). There is no reducing or tangles requiring a merge to make sense of the information.