Evidence row 3722239

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/hExj6i"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/b7a465f9-9758-48cf-8cac-bbcb99b0bce1/.well-known/agent-card.json"
    ]
  ],
  "name": "Hifero",
  "owner_address": "0xdf5a870002f04b1d1c30a28014b31f0c971e7d4a",
  "raw": {
    "agent_id": "393731",
    "agent_uri": "https://centralcity.ai/a/hExj6i",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Hifero 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/hExj6i",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Hifero",
      "registrations": [
        {
          "agentId": 393731,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/b7a465f9-9758-48cf-8cac-bbcb99b0bce1/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/hExj6i",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793967029,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-06T12:12:59Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Hifero 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/hExj6i"
}

What the leaf hashes

{"body":"a54a6411ee500fead924e052b3a5b789cb83814fcfe8b72fdf6651ba7c175c6d","id":3722239,"kind":"listing","method":"sync.erc8004/1","observed_us":1793967179920108,"prev":null,"subject":"erc8004:5042:393731","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x1b9aaee95942a2e1a9c7407e358afa9fbf231f1fcc5262241f15607447ee18fb
2. 0xfd329aa2ffdaf30fb20f3b69a7de308cdb0ee86d742089fb7ab6e9267621e54e
3. 0x74585e7f816686ee707c3a553e38f100c6959e16d61e885ebf4bbe7043a6e2c1
4. 0x986b6dbaeecedf8321331608e9f53d75ea34ac98bdfecc3492d7a16d72220e49
5. 0xd02a99c364b77363c8219dfcc76f6517cd8228525da82f52fadf5f9130ca0bf8
6. 0xa5bf400ffd4819f7cac6dcff624f7ee127982fae975a209dfad1ec3faecec3ef
7. 0x2232b8b111e10b101548a40d5a9eb7304940f820c81e39dc73d4908bd87f1d86
8. 0x27f9f9b9e3ec22820d0cd5cd9b7aa47ea15c5c25dd8409cb0dce99440b05acfa
9. 0xe05bb63b4b141ad45dc2ce8e9dae58e0db787b833953a5128072bf42a9eff5e2
10. 0xd84c9047a67c97a7d3cccdcda40104b364a3e8669f521fa7176c80ddcd2f9026
11. 0x4eb1f657593556d68f9d33ffd562b9231009bcdbfd0a9e4a95d1a714eaa00200
12. 0x320d9b902b6cbdb33207bd8146a1fe28d3a88f68a7aeee60edae2ac06f6f526e
13. 0x7263225760ff0a3a0bef7d5853f3f8673d66a325200386e3253778ab33baab21
14. 0x1b6470f2cade86987531a43c334dbd26464d20cdf245153dd4023a95ecb354d4
15. 0x8ca52fde5899107bca7556a114ac604a06c716adcb632e4a38c7dbbd06360895
16. 0x63d3b15302a17641ec84d6d16c07594288ca45016a6cc12a65ca679e6cd95c97
17. 0xa448dc698494f795f2240c0e7070e8a93eb263baee21ca4185a7d03432a614d8
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1