← The evidence ledger
Evidence row 2948794
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:225569
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- bf3a9991f641c55a6b8b44422a2a8bdb7d6f601e3a1abd0cd205e2f95c9804b4
- Leaf
- 0xb12cd220f9dce01332963117f3a7950258ec537c6dc0d76a00990f86958479b3
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/Q99mkf"
],
[
"a2a",
"https://centralcity.ai/a2a/7f52a4d7-d799-4519-a45d-19a61f1f7e1d/.well-known/agent-card.json"
]
],
"name": "Sempert",
"owner_address": "0x78687f8fff0162cb42a8460b08d1696f0f292162",
"raw": {
"agent_id": "225569",
"agent_uri": "https://centralcity.ai/a/Q99mkf",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Sempert 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/Q99mkf",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Sempert",
"registrations": [
{
"agentId": 225569,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/7f52a4d7-d799-4519-a45d-19a61f1f7e1d/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/Q99mkf",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793767008,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-04T04:38:24Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Sempert 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/Q99mkf"
}What the leaf hashes
{"body":"bf3a9991f641c55a6b8b44422a2a8bdb7d6f601e3a1abd0cd205e2f95c9804b4","id":2948794,"kind":"listing","method":"sync.erc8004/1","observed_us":1793767104315472,"prev":null,"subject":"erc8004:5042:225569","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (424109 rows).
- 0xb12ccf1b145af10aa0480d1221142848127394b40d0ef0b379428d48cd0b5ab5
- 0x9a17c92c67011ec857a6be1cc115bdc1e40b0e5cca0a255769ad934463ca94ff
- 0x6e8858a475298731701070a864408c011eddc5d1cac9a4ae526e50f6d28a5d72
- 0x8a4c90181ece305699fc5c146b4444b13c05a326da947954f7d40ca60f0375e0
- 0x2305ada9ed3af9b81e446361ecdf4c994d9451d96696de35dc3c1c73d17871f0
- 0xe5d1250656a9dc64edfbb2545fbbab2509ce7c8a3905308a0494220fba16d024
- 0x8072db1f6ce6771d64d2ac4d23e21dfbd49d54677775c0e786efac421aa1513d
- 0xb03cfca04df284fffe39edecb64b51b0a778277615e655846cb77fd3b1c18fe5
- 0xf0a54d85b7ddaef6f195de17fdfe47bf8ceb43489faab1c0a9e498a97681eb5f
- 0xdcf03253ab5e17dad571bdc570be0e8ced943dc5c49df70845af6f805559dfda
- 0xb147bd72554bc2331ee2bc11c7dcf8ebb735a995b695642dd9f66d087a4e4bac
- 0x8b3e675e36966d366b40845cdd8c2f6f294a1c1acd32663465d5faf7542c9f6d
- 0xe0c107caa77d5efbcc89600269de124b9669a0ee20ae1f6465c79cd503bfc9ae
- 0x1088369e34916a33a3c583323d2fc4f49164cbac20b02de75926f72398b939bf
- 0x9efef3631f971f9adf134dd93a6862b2ba10ef6a355b78514b4cc469a0d1496c
- 0xaf6861b690de8e69efdec688615139e2df9624a773d4c6017d1ef5841d1ac724
- 0x321a352f90893ccd0656c1544d31825cd29cf74464e924a4ca7fb29b1f8ee0fd
- 0x9c1c771179da4a002386557e8601b2d4983c3e366808477ee20da18c282c1dd8
- 0xbb1998892a86d9633ea7b5de06760114b45777da649c217062ff0d65d7095f34
- Day root
- 0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
- Chained
- 0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
- Published
- On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345