addrbookFor publishers
← The evidence ledger

Evidence row 1761576

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:4123
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
900cd0119910d381a400377b95eea26bdbb187a9fd00028c49f620e189f5aa86
Leaf
0xa74f643e3a86c1b5e825acb1d4b0de08b7e17d6993c2a33e2c0af174dd210dc4

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/14yLS5"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/06a52b47-3a71-40c3-9e5e-d0cf10199e7e/.well-known/agent-card.json"
    ]
  ],
  "name": "Fontel",
  "owner_address": "0x075c48f88a718d60975a490c69731e39bf207ccb",
  "raw": {
    "agent_id": "4123",
    "agent_uri": "https://centralcity.ai/a/14yLS5",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Fontel 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/14yLS5",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Fontel",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/06a52b47-3a71-40c3-9e5e-d0cf10199e7e/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/14yLS5",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T11:36:22Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Fontel 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/14yLS5"
}

What the leaf hashes

{"body":"900cd0119910d381a400377b95eea26bdbb187a9fd00028c49f620e189f5aa86","id":1761576,"kind":"listing","method":"sync.erc8004/1","observed_us":1793532982782072,"prev":null,"subject":"erc8004:5042:4123","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (302406 rows).

  1. 0xa74fc20d5bb69a7bb0563b6e433d57384e40d8f3b326419e354b69c7fde58f97
  2. 0x1a9a8c03093c38e0409a3d4a8b621e6e22064e78de09f4981806b9975d33ac89
  3. 0x03e5a855c6d55ec5ec526d69554fb1dc1a07b293a3344e3e6465a30314e8ac73
  4. 0x15136024da3de6e0f35ae26911400ca3b4248b34b419650117da978b48504506
  5. 0xbe48865b020754112b1f2954d49c9bb7c2d7c5b20d1c4a7736d9da226101f9f1
  6. 0x2090d17586b5abaf4b774ca8b21d0b61cdc3d556eca7f55e1e98069b22661888
  7. 0xfbdc7659c3f7d4d6f74572d9de9cb0b3692c55be809ce7dc60e9398dfdd892e2
  8. 0x7d12eac1f1d86ba1f08dc48887a6c41ab197e720abe0dd8f7ded33c86743aff9
  9. 0xc8736710c4d43c34e25941bec126d04eee78acf40ee93d7995a1833a2a7260bf
  10. 0xd59117590977370ed867b2698f290886346cd795edb6d348fc59c790b955cf29
  11. 0xe460e2458b6f8dd593b34df4051783263ae38f7e4168ff916d22f0746ba600e4
  12. 0xd209e5d1518fb161264f3e389a6c577acbd29192c17c80c9ec8ed9b83503cb0a
  13. 0xefff7a00a0f698242a4fbb4741471facf8a07aac283a6d0c44a87bf4a988152e
  14. 0x110c6c21e77668de1becd70345e909cedabda185c5eca2a47425fab10ef478be
  15. 0xc88d127644e311620e3bcad9c976ab2c79963799278768230b1762de9b7cd724
  16. 0x8339aa87501c4d4f8b38a13e480a7c563957e09fb5711bed7cf189d6787f960d
  17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
  18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
  19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910
Day root
0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained
0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published
On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON