Evidence row 2517271

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/R7tjIA"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/74df57f5-5ab9-42e4-aef9-e8e3febc77b5/.well-known/agent-card.json"
    ]
  ],
  "name": "Niakotan",
  "owner_address": "0xc2ebda988b6c14d1ff6b8b0bc9c0a65b836db413",
  "raw": {
    "agent_id": "155572",
    "agent_uri": "https://centralcity.ai/a/R7tjIA",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niakotan 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/R7tjIA",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niakotan",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/74df57f5-5ab9-42e4-aef9-e8e3febc77b5/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/R7tjIA",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T03:45:06Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niakotan 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/R7tjIA"
}

What the leaf hashes

{"body":"2bc43b8e96a610dd001430b19b85e40e9c401146ff67940aa3dd7fd1e798d90d","id":2517271,"kind":"listing","method":"sync.erc8004/1","observed_us":1793677506353303,"prev":null,"subject":"erc8004:5042:155572","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. 0xe2c23ecdf22bf9acc9114963c4a808e477bbda137957aad2b769fa995d573666
2. 0xa5c9466d13efef7b736bb29c41cdf5d47a2b379ded9ea7b7c818bd673356da03
3. 0x640aa6e72af3023960a2e6b3aef58e24d14aa08d8570f3d38ab5176a2630bca4
4. 0xeb39dde5b32e41c5a49f3b138289e3ca2aa525d5eaeb1d3eee58606819af59ff
5. 0xefb39e4e0d101ee0e97622eb6aec11459a6a767f3551e0e6adb63cf873dee4cf
6. 0x977ecf2f530360fa9c9232fc48008172ca9040771b21f8fe98150bbfcbaa795d
7. 0x818ee3d1805b6a56bfb0948dd976291315342f1d30c005befb775527f7af8eba
8. 0xefe04cfd730402bbfd03c8da605f29b636e88dfe51f3f4cc1dd1f7e4f39b3bf1
9. 0x999fcbc8115edd21a49726f33df2a3d43413bc463b0fc190ad9892988e70210b
10. 0x586442423d771091b6e9ada40557bcada74c8084cc3258e68a032eeb4616e7bb
11. 0x5494c446a5a3aa10b145c79e633ec01125b8cec69d46e34bfd29b76c41288725
12. 0xc971d36ebf71dfd71e121a858cecbb4888f890eba0d5d5244be7b699fc072974
13. 0x2bacb7a3207deb74c13a1bdaa0fbb22b2ae9ba7754f80426bad8f93bff67d978
14. 0xf325d91f08ffb7f78519bd5f04dd572a693eaed62aa76d674f6e757bd5f0f276
15. 0xa2affd8bf947cfbdf7d8306e1c5d3a442dbd709fab2739124e1aecfdc7d513da
16. 0x68c6b9053bb76224fd0e15585b411d440e30609e5a4fb17301a7d24e9b177e60
17. 0x7075a090980aecb33e9c15c829cb40f5b44385b6d91a159042263db068126b87
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7