addrbookFor publishers
← The evidence ledger

Evidence row 3421971

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:342320
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
df611fe2991ee452db9bbda716eef2db778914c34903c9ab669b583b8b2f0d1d
Leaf
0xb855f0f522606d1a80628557729d60f4711b067802fbc2ccb7185f97623916e9

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/7hiVEG"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/4774074a-8bf9-4394-acba-ed77a2f608de/.well-known/agent-card.json"
    ]
  ],
  "name": "Grandisto",
  "owner_address": "0x22055c5a1100b598dd4faa3047ba6fac4e01ab41",
  "raw": {
    "agent_id": "342320",
    "agent_uri": "https://centralcity.ai/a/7hiVEG",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Grandisto 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/7hiVEG",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Grandisto",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/4774074a-8bf9-4394-acba-ed77a2f608de/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/7hiVEG",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-05T15:31:01Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Grandisto 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/7hiVEG"
}

What the leaf hashes

{"body":"df611fe2991ee452db9bbda716eef2db778914c34903c9ab669b583b8b2f0d1d","id":3421971,"kind":"listing","method":"sync.erc8004/1","observed_us":1793892661711069,"prev":null,"subject":"erc8004:5042:342320","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (322504 rows).

  1. 0xb8559994273760d5c9dd6b6a3a1973e2e00ee441a6b68b64a7e5362b99d9ad6a
  2. 0xf54a02cb4d1d7e4aab0266ad74de6088fdd7e2c7539d0e5efe78d2219032b38f
  3. 0xd68f2b19474b13701a4bf55ba0bef0d206c61f8d36f2fc697562c51362c2362e
  4. 0xe0a1acd2253a38d250d18e5d333ef33aca2d03bfea5e9ec9e0498fc0636a407a
  5. 0x270d3aaf30427355894efb66a9349459bcf1b68a8702c0b88fb7908915105e46
  6. 0x9065ca5fff857b617e11ecfab2aab678fa35f4839b4ae9c80372331ef80571ce
  7. 0x1cffb51026489e823b3ad4deb2e40471216a14b83e64d16e80cb3cfd6cf35f0c
  8. 0xe80f2dc924e895f89ce7eb04652dfe7d7bdd5b6c1da8164739caf07ec905ea71
  9. 0x1807c1bfbb9c23b30e8dd509cbfb64247960ee52058e3fda9bd69681eb55ec8a
  10. 0x94199ef7303ad532eff536d5f1f835cdd0a129d946673a40e43364aaf5103ade
  11. 0xf0b24ca7671ef4153473bb181f3b98e00047ef929a87bf3dcdb1537fccee3e96
  12. 0xcbb3e27760a19275f67ebdfec20c6a6070f7bcbcc4466b481afbe970d6998a73
  13. 0x33d42efd5a22d51aeb6beb7bd968aabc75c631856148fda833446d76e5c806dc
  14. 0xfdff056f2f1484871f49374c23ddba883f11db9a6da6292a7e99a1638cdd3d63
  15. 0xbce07c8bedec3bbed9a22d7f4e8aca180f479ed562779a14791c5e82f052e9c8
  16. 0x308711d37f87ac2fb79802c45aba249411861d2d093068d1718f039b506d2a02
  17. 0x25f3843b1f8d3ded906cf440101c0137d8f897b0b72f946f0d5bc12c3da6b136
  18. 0xfb4e1f4d701ae273fb0cd57757f659e327608e5561a752b2099b436618493c84
  19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b
Day root
0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128
Chained
0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2
Published
On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94

How to check it · This row as JSON