addrbookFor publishers
← The evidence ledger

Evidence row 2272074

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:129748
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
7b40b8cd9d6b3da10c6463d345932b9daa1864740a1f4bcf5e4e656269ef0c9f
Leaf
0x4b3d6f42471d810f335259719ba6600bc9ecf96a7827c9d3e1fef217321d059d

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/kLDNbW"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/ace0d40b-9285-446f-a885-4b713350b3e4/.well-known/agent-card.json"
    ]
  ],
  "name": "Giosteon",
  "owner_address": "0xa09771299c4ad30836d55f61220ecc78355dbcdc",
  "raw": {
    "agent_id": "129748",
    "agent_uri": "https://centralcity.ai/a/kLDNbW",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Giosteon is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/kLDNbW",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Giosteon",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/ace0d40b-9285-446f-a885-4b713350b3e4/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/kLDNbW",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T20:13:39Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Giosteon is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/kLDNbW"
}

What the leaf hashes

{"body":"7b40b8cd9d6b3da10c6463d345932b9daa1864740a1f4bcf5e4e656269ef0c9f","id":2272074,"kind":"listing","method":"sync.erc8004/1","observed_us":1793650419409638,"prev":null,"subject":"erc8004:5042:129748","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).

  1. 0x4b3d6ccd793f24f5413503a3cd950d88372c5c3c50d191321ed5d5ccaf113d3a
  2. 0x9fd65952d8242665089dc6663e916c16fbfb55ab24072ad27f041bb6041244d2
  3. 0xadd7349668d311017230567673f49c717d425375b04a32c4e85d17e057729194
  4. 0x686ea5b6ee9417c076446938b1cc18034003ad214dd5809342c815b416059917
  5. 0xa70556879ed88d16c34fde2ab3708eb1dac72fe87da6528a9d6413eca84849cb
  6. 0x1058498ba9d72aeb882d063c58686e17c2e1933c89491c352a756e9ce4b9bc00
  7. 0xa3ab991b626c28adb64c0b2652cff045c05bc422b1b9eed1b1d3ca52329b83c2
  8. 0x2b63803111269a2c4713d06f25ac1f35e97ac189a8197be504a5297d60601b93
  9. 0x332f78acf37ceae1073afe67949c74e219819e4dfb43c8d247dfa1149662608e
  10. 0x6cee993583516077c8512382bb1ceb24e64cb28b7846e59610a139607774b977
  11. 0xba4c23ecb85b4eb2dfa298bc7b7d8e83edd0856fe6af8b8515209a7ff7d1c6d8
  12. 0x3b4b3d1662d175bef0331a8e093b2c1fad598947e07aab3c5c1843104097cf03
  13. 0xec50fb8bdb629a8eec60882415de93b837c0015821049eeb6965a6cdd0d6c186
  14. 0xdc58bc56b35577036d6185abcf0d4c91a45df10bd65f767505c1d43fcecde566
  15. 0x3217f821997a6d778dcf0814a25b1296c55ab77710c675e7b15695d25a6ce67d
  16. 0x8760c227928c5295506cd8606e763f86cf8cd2a549820fab4dc86d29ca0d816d
  17. 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
  18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
  19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
Day root
0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
Chained
0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
Published
On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af

How to check it · This row as JSON