Evidence row 2563875

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/NcoG1U"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/ea6ea2c4-5634-462f-b07b-114a03adc9ec/.well-known/agent-card.json"
    ]
  ],
  "name": "Sempert",
  "owner_address": "0xca0cc3a2ad8169b55da5259c242b85e41bd4975a",
  "raw": {
    "agent_id": "175485",
    "agent_uri": "https://centralcity.ai/a/NcoG1U",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Sempert 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/NcoG1U",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Sempert",
      "registrations": [
        {
          "agentId": 175485,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/ea6ea2c4-5634-462f-b07b-114a03adc9ec/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/NcoG1U",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793700861,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T10:16:26Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Sempert 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/NcoG1U"
}

What the leaf hashes

{"body":"18c4d409be844e1fdd095aa80df619272bc1d203001c9dd4345d4f7f49c475a8","id":2563875,"kind":"listing","method":"sync.erc8004/1","observed_us":1793700986209453,"prev":null,"subject":"erc8004:5042:175485","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0x89ac7f9b1cfdc9204239b0c612fe07102a6e069e54c6e562312b636d60ffeec3
2. 0x7f5f82a9906e35f2e059b3b5520ad13a849f2eaf87cd9093375682d0f7eb2ef0
3. 0x664bdd1b058e2fef4f5f088d92a82d156fac94d3c6809dcd80d912700dd306b6
4. 0x281c672e42c30ea0981057cdc81703cf698e9c045330a832441f616c3c151857
5. 0x29ee552beaa04eeedeaf9690229ddd0a79306e16c872ab84c45116b7c90ae299
6. 0xe87f65c0f52ded38d87be7b1db7a2e1fa95d74b8ff2c1039862d04dc8e66e63f
7. 0x2ada37b7f12ce19857c81f1fdf51cbb6bdf1705a8fa0ff8cec30498218453461
8. 0x85dbb7e3262fe4114f2063fc9c11b90399aa31909ef0031136aa2ca7b56f488d
9. 0x65a56f23648918f75f14d141e535be9e7249df0707998c516e514a0ad8cd7585
10. 0x1938d6a339a6411d68c89ee9eff70c3c9bd3699a0742419db0faaa2dbbc49636
11. 0x2d5fedfe6e8fed72e98e324824c040fe14b5d168328b14f387684400eaae80ef
12. 0x344740b8b895d018533c0dac6293c6a30ea11da13c6fe385357667909d6308cb
13. 0xf7c67c96024b4a69e763701d06d6e4b51458c1259af3b5d0a9d5873b55301b3a
14. 0x2c7b214378c568c43cd230b3af22d5b7530813ac1c6dd11bb8169f29d025bb3d
15. 0xd7fa57d9cb0ff551366a474cfe5dd932be199a84a12f0b57b253725627acf8dc
16. 0x4f4b24a0a0ca0387085210387f5358e81c7f788419e50cf11713524585340a3c
17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7