Evidence row 1783552

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/97QX4f"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/c51ea3e8-c686-4e0d-bb99-f5bbe0fb98b8/.well-known/agent-card.json"
    ]
  ],
  "name": "Bifer",
  "owner_address": "0x70c313801e064e82c79b5d13da74a16b6f000ebf",
  "raw": {
    "agent_id": "17549",
    "agent_uri": "https://centralcity.ai/a/97QX4f",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Bifer 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/97QX4f",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Bifer",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/c51ea3e8-c686-4e0d-bb99-f5bbe0fb98b8/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/97QX4f",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T18:16:09Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Bifer 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/97QX4f"
}

What the leaf hashes

{"body":"6843a39801f5eaac975b0aa346c0d8f75bc4201d33e139469d92b60f2e8a7e31","id":1783552,"kind":"listing","method":"sync.erc8004/1","observed_us":1793556969518567,"prev":null,"subject":"erc8004:5042:17549","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. 0xdffa3be24391ebe16fa4c90b5485b62db0fa5077dfa153340b52b900569dcd0c
2. 0x3b43158f474f65f519c04b2e3be067ec91f9909d7367731641b856777e1c74ba
3. 0x093128762ed4c56b283968038eb1b4c7a9b5a46c2366e64621a011ffc9b6448f
4. 0x821ba2673250545930a3aa054726ec4c16b96aeeb367cae944bee113f366521a
5. 0xe635d68735bc647718ef71ee5cea119a0e3668500f4f2ef142525bb7edf454ed
6. 0x08a908d57acbde139366165f837ddc8083107f761e855fc612f5164087d27db1
7. 0x1953854bf8945c695cba3b270390a191e71cfdfa0a076bbd75077c9e14b8f0e2
8. 0xf1bb9fe8f5156e53cfe375a663d2b795923a72d7485e84424b73ccef75cd3673
9. 0xd943504641054513e4fba7e4f103817e2f35dcbb612dca0d237bc3a809cee9b6
10. 0x78a1f7d707ca2655632c8a2307ff8e00e2b1b53f6ecc6136f42f2315456e828e
11. 0x241f278e33b93f7bc8410125ddba7dc6d74f720adbf381b6e07c14ea1394fdb6
12. 0xe2f4c4b84fade36a7ef7b4734c148482096b21c09ed3027f89157a803cb329df
13. 0xd1d3d18403c8d600bd2ffc7617196b7b7b40c9cc69bc89a55f9c3d8c58bd3cfd
14. 0xf25ae803bf30c21cc73fca60cb3edf50df2a8c71b23bfe8c11bfe395b2367892
15. 0xab7a3fc66c9797d0e63453ae08b7e56806e93e038fb5c65065ad1ba1e1d9114c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90