← The evidence ledger
Evidence row 2123577
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:90107
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 01af40dd56fa13c75157f361f91f52ce0f0cd6eea1f2efe742e56ea5e44a8b1d
- Leaf
- 0xa2d3c43b3385c2c189692bcb3088f3aecbcf8165ad72d25e41e62fbb58228bdd
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/U3yZVt"
],
[
"a2a",
"https://centralcity.ai/a2a/5f11b7cb-4413-4c45-9364-9c8493f3d584/.well-known/agent-card.json"
]
],
"name": "Grumpeon",
"owner_address": "0x8b1ae0c2123cd47dafc4df227a42d82baf1abff2",
"raw": {
"agent_id": "90107",
"agent_uri": "https://centralcity.ai/a/U3yZVt",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Grumpeon 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/U3yZVt",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Grumpeon",
"registrations": [
{
"agentId": 90107,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/5f11b7cb-4413-4c45-9364-9c8493f3d584/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/U3yZVt",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793619782,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-02T11:44:51Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Grumpeon 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/U3yZVt"
}What the leaf hashes
{"body":"01af40dd56fa13c75157f361f91f52ce0f0cd6eea1f2efe742e56ea5e44a8b1d","id":2123577,"kind":"listing","method":"sync.erc8004/1","observed_us":1793619891118090,"prev":null,"subject":"erc8004:5042:90107","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).
- 0xa2d3a39e2eb02b3873b005bed169413493cadcb7bd5b371f91610d8990653d33
- 0x3d710beba21f7d86403b7b3021a2459ee8f1fc2b7cc2c85a5415f4acff4dcb31
- 0x85b60843e9020013c4f85850aca9f58732c8a857e935eac41e0ca43a86e2dbcc
- 0x07f0b597e2a29388c5b28baa8d743142808120613b5c0e736f31021358f6ae23
- 0x21232149c7265f29144a9d0ba92b4d6ed00d3a67895a439df54cf5cbf3c06775
- 0x7cedf86949a794785e60269b08cf7cbc4eafa712dd1ed75d8cba7b7211c73d86
- 0xb33af6f2037f23e23af51806831365eee35e59396d38fdaa6f8ad86f90c93efa
- 0x8a85d0a2df3f829d4f31c6e99cd676574f7edc90f6f62454dcbb638ffb6e0767
- 0x7516a321820ddb919970dfd6c19e2ff8fda16c0b09feae53c4e71b789ec2aa55
- 0x128e232bd66618a5c2d7162d299c1f0388a00e6ad776ddb52d7d6d1fe47c313a
- 0x1a72386eeb3155e6c1c223e85f40e2330fd36b6c95b1a07a3660d54f818c9a0e
- 0xdf5c4b79740f563a59efa8c3adec2be4903d6cc5c8737dd3d136af8c1f9baa74
- 0x6959682af8334329ff865c5705b67dd969fc79c93745d2bb5b28573810cfc1f1
- 0x44d08992eb52b7db0b3504ba234d634742d61c21889da1eb00242ce07e97334b
- 0x7abf7290721a0b95be706db03c09de9df65bcba8e18ffe4616da43d9c31d6b0a
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af