addrbookFor publishers
← The evidence ledger

Evidence row 2728803

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:212103
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
881bd87fd2ae3f7ca6113a915dcda7607be66736aa9e9391fdd2d845ef73537e
Leaf
0xf8d591b42521905559ac89a92d80be099831ae1b8a5b1b4b4da8b181633e28d3

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/S04z8q"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/683dae7e-4562-4540-ad26-a1024641b216/.well-known/agent-card.json"
    ]
  ],
  "name": "Nizose",
  "owner_address": "0x9ece3c8e7ed1453dd93b7e2485e452350f990a71",
  "raw": {
    "agent_id": "212103",
    "agent_uri": "https://centralcity.ai/a/S04z8q",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Nizose 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/S04z8q",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Nizose",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/683dae7e-4562-4540-ad26-a1024641b216/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/S04z8q",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T23:36:38Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Nizose 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/S04z8q"
}

What the leaf hashes

{"body":"881bd87fd2ae3f7ca6113a915dcda7607be66736aa9e9391fdd2d845ef73537e","id":2728803,"kind":"listing","method":"sync.erc8004/1","observed_us":1793748998128356,"prev":null,"subject":"erc8004:5042:212103","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. 0xf8d5e60ce00006b4c4e104c1303aef1541a596a6836605ae5f3b8f5b7cd5e98e
  2. 0x7b15b4c08a63598b0c25cf85439d2f7ee64438435ea87f0d0669b5493d828371
  3. 0x78a2ff7a914de296d5eb11bfac4ac118002e6405ceed9247ff2b56f31ec8234f
  4. 0x81fbc86298089d31f246230504eb0fc37c3d404eec1b2c5abb6fab0eb911b3e9
  5. 0xec9b7c04b8f8148e17b7c760d238753d4d3a9289764682c0acd3142bd3263579
  6. 0x4e2ec760b59c1499e45490ca150ac6a26e651f63d248f7392e32f034b84882ff
  7. 0xf329441a70e81baa66014b78fee06a2bf4dcea955d3c2f63a73a2fd40c2100a0
  8. 0x85d4d87d73fa19122904abf323689abd0b6e7e3859a8cdd0d71d87ecb50d8a76
  9. 0x0ba86d2e8ff7464aec25cd37c9b0d86cd89d8a44fea17c46af10a22031da57ef
  10. 0x486ed904dff1a47776e1be48c2d36aeb113d35056be934191761b32d0b0b85c7
  11. 0x46303b05c937e5df7e462be5384035de99b7b7006fca1f08825e26cefff77647
  12. 0x69d570430e0680b935f4539583daa1fe38a7c04eeec03c37ae6b8c6c43cc3040
  13. 0xb82c6f9993ed0052af72159e6cca836ea7f9958178a63f242d6957a81b24911d
  14. 0xb67cf31c0f6dfa9976040b7caae9f293217f9d9984435c203bc54a3676e0551b
  15. 0xaaf692e701ee622e9e0fa24c7d0f9f672df8c586de5a6f0375f8cadaf0c678a1
  16. 0xd60b16e6a71fbffc93a233ee89f916e50c0206a56f52c852b85e5a246b6b417c
  17. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON