addrbookFor publishers
← The evidence ledger

Evidence row 2550123

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:168214
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
c343d2eb674cda80ec7dea6eb7bf7e2caa11570214fb63b75b05a20a0257dbd9
Leaf
0x9c6d87b174ffd3c5d0e468846129bb96a1338b179ebbb091bead984c22df7798

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/XDAz4i"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/75c6610a-3f85-47a5-8004-9bcf66da307c/.well-known/agent-card.json"
    ]
  ],
  "name": "Tantan",
  "owner_address": "0x1a727a163b3c98bb0640182dffdbc40ece1e24d6",
  "raw": {
    "agent_id": "168214",
    "agent_uri": "https://centralcity.ai/a/XDAz4i",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Tantan 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/XDAz4i",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Tantan",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/75c6610a-3f85-47a5-8004-9bcf66da307c/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/XDAz4i",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T07:49:47Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Tantan 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/XDAz4i"
}

What the leaf hashes

{"body":"c343d2eb674cda80ec7dea6eb7bf7e2caa11570214fb63b75b05a20a0257dbd9","id":2550123,"kind":"listing","method":"sync.erc8004/1","observed_us":1793692187608817,"prev":null,"subject":"erc8004:5042:168214","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. 0x9c6d9805d1e1df297dea27f2dcd83e2e47b4dd754a8e78967e5c2ea041b4ce96
  2. 0xda51be080dc2c8f402736501e9c446714f28ad52a4ca8e80ee415c463a6a4d1e
  3. 0x5ca826c7e5f65daa930a71addc6eaa5abe80f748751f5d43e2c92734862156c1
  4. 0xf68cd7312c8cd2d15aa92292070f77b80347a4ae5c2b71e2980980ffd791e1a8
  5. 0x2f9526b2830d30935894d14347eb7415117c71921a34314bf5e852a11a50c77a
  6. 0xc8849c8a6d652230829e85f77b0af673a6350ba309f53d345c51360aaa50cee0
  7. 0xcd3b661ffd3f38d6748fb4fe02b668010467e847c5a0f1c2e5e415d5cac4daec
  8. 0x7d206e0f007c1227a478e96b2a2b841d13fbd7a97664b54c757fe27ca9e05525
  9. 0xfd1a9ae3510934c2f6758f8b850a9f62ec7ce9adf8c47e4e758e38b8b4e46976
  10. 0x5011e0bc9701bb75352adbb43b59e8c39a33d2012ca67faff739624ab35bf015
  11. 0x5f46778835b164363bb5fbc3f6ed82f78be790664ea337191a6523e8b87165f2
  12. 0x5135f96b23ea1e5b4458c92c404705e6b4f464bcfb58f2d4484f6776cf797208
  13. 0xa213237248bc217986c237aa7f834054c4c09d2887d4a5c8ab351dd9ccee40bd
  14. 0x7657cb1e96189305f3276517cf3716f7cacdef06e4b876b60d2c0bd8b60fda96
  15. 0xbdd3407977f70b26d0af6e874d984fe982a78bf95057b70049009db10e525ebc
  16. 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
  17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
  18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
  19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON