addrbookFor publishers
← The evidence ledger

Evidence row 2725225

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:210533
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
ef566c2ebb7fefb8d787efdda096c9afa241eb87e134c0445220a8aa362ef5a8
Leaf
0xefba804fc8381318b53b77aaa65f35a5c2046318420241a37f21f74eb3fecaa8

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/rXeYWS"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/f6186116-27f8-45cd-bd97-e9d262ea320f/.well-known/agent-card.json"
    ]
  ],
  "name": "Holosteon",
  "owner_address": "0x5c9f54b84db8a929fd964240e5da68bc830f4e7b",
  "raw": {
    "agent_id": "210533",
    "agent_uri": "https://centralcity.ai/a/rXeYWS",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Holosteon is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/rXeYWS",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Holosteon",
      "registrations": [
        {
          "agentId": 210533,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/f6186116-27f8-45cd-bd97-e9d262ea320f/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/rXeYWS",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793747042,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T23:08:35Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Holosteon is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/rXeYWS"
}

What the leaf hashes

{"body":"ef566c2ebb7fefb8d787efdda096c9afa241eb87e134c0445220a8aa362ef5a8","id":2725225,"kind":"listing","method":"sync.erc8004/1","observed_us":1793747315705294,"prev":null,"subject":"erc8004:5042:210533","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (425475 rows).

  1. 0xefbaa93075c39380122c1d59c07e91b0b5eed8b0d31404df0bc2e45d0b408a84
  2. 0x2de766683adf72ba544c9e7c1b5280ac14c49330f5580c0c9dfef898264107d4
  3. 0xbd12d3344c0e1b7a3dbb8913059e4e6961f646dc657df1951f450578e5d73fff
  4. 0x1d321038ac335923a19e143a730f8f304056058833b53d870a503114534d6200
  5. 0x81f395d00299631deb0bdef057c9d90800f687534825cc33527233a781fe7b2d
  6. 0x473d63194fb9f68dcdc840c272c9f51111be45bfa37307e2ec961f4967c59ca0
  7. 0x3923fb6100b88a31c9d7f26a842c9d144bafbe782160c8097146e26e0223b1ce
  8. 0xbde2dd74aaf99a50a6cd199e8d363e598a7873bd895ed16cef1dff1c3aac81cb
  9. 0x425d2129462faadd5c304f30ce13bede112a8eed679ce00a18a428d4103025a2
  10. 0xcdd7481fd54e37c10a011883580cd8043c0952819365a1b350ad5717e3ac5f31
  11. 0xc915b86e6561958f951d6de48cdcc266bc530112b0473bf2367c0d17a735e2c5
  12. 0xa482cb38763d8734b11fadf9d66566266ddc789ac9fe593c0b9c09236845f918
  13. 0x392d1f8e0d95573ecf5e48b86b7c22bc722ff63cad3e9bbf07a0e4b39157384e
  14. 0x2548979bbd7b1568b5a14db6fca0201979c48165192f2b55f45fa21471031e4f
  15. 0xa29933ab8020ad948edbcf3e65194e73a6b113a0063231c1105b56c2d59ab97d
  16. 0xd60b16e6a71fbffc93a233ee89f916e50c0206a56f52c852b85e5a246b6b417c
  17. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON