Evidence row 1807888

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/rnAmTL"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/eddda18c-2a00-4030-b448-5fd17d03f861/.well-known/agent-card.json"
    ]
  ],
  "name": "Biontik",
  "owner_address": "0x6eb9bc7c2db83a611b33d0329abf062822f6f0f4",
  "raw": {
    "agent_id": "19010",
    "agent_uri": "https://centralcity.ai/a/rnAmTL",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biontik 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/rnAmTL",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biontik",
      "registrations": [
        {
          "agentId": 19010,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/eddda18c-2a00-4030-b448-5fd17d03f861/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/rnAmTL",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793560099,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T19:10:51Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biontik 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/rnAmTL"
}

What the leaf hashes

{"body":"4a212badf99da7a0d30cda70220492f6d28ead5e2659aa3c147f18438c437a66","id":1807888,"kind":"listing","method":"sync.erc8004/1","observed_us":1793560251336440,"prev":null,"subject":"erc8004:5042:19010","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x180807e785aa218a8abcd1d87e879485224b39b2b3b66d6928cd3ca223db88da
2. 0x8bd1d4270989fb46687dac867031b329bd646634ecc4f0ac9b9b95058f7a2c70
3. 0xe60c358f7a7e0dcdb7af2ac1718c0f27b0ee3c5517b0b31d4957a331f31fbbbb
4. 0x1f2cf2bec43be3bb89e14847ef6b188152ecf2b8e892cb696cca9125ae279508
5. 0xdd167e6ef47eb4aea0f95ccdbdb5a9c3caa59631513cbbda3ed22749f3b1501c
6. 0x1f56c2d79f1bb48b0997bdc966bfec405efbaee5af1d6edd970e8617623146c2
7. 0x6eaae01e9b9a51d101ec58cb961f8778fb5a24c0d804e0536da84bc93ec229fd
8. 0x901eed22e46cc5e88f96b3a853823c03c316f06f1a467427e3014e5a7f055a6d
9. 0x4dbe761e4cd835b1524f77dcaadf1da6d1804eb6f663065c268e06db34f8db9c
10. 0xc72ea8e19288b8a2d964388144ad0e261a694f79e30094447943b5915db3bdab
11. 0x1875588750bc6869801dbd696c6469964f1b212ee5579d8e3709fbeedf0bdde7
12. 0x146316976b7ec4583b26232bb6d8121bd01137743b2d16993895d49d09e8d1cc
13. 0x10405c22dbe2ed0ca6e6cc381b8fb16e2b184181ad6bf0dbf94a86aec4f16b97
14. 0xa4d26e861503b80bb91bc89e98fcc6daf0fcf003f5a144540ccd91637ccdc11f
15. 0xf1aed005f71411c0df252d9623f284bcac7de199e24c4d4cd5df3e8d3348d3aa
16. 0x5cf5a0a57795246f996e480f05ed085c19d02f7d6e8fc3ddc392412466554f0f
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90