← The evidence ledger
Evidence row 2604611
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:191316
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 38ed9b1decbe467dc0304eccc729a53f05b0f4cb285be427581fa0ea71b434f9
- Leaf
- 0x987e4ececbc109b85265eee67e0f23264350ce291333f849d531c846a5dc83f4
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/Eehjr5"
],
[
"a2a",
"https://centralcity.ai/a2a/1a4265c3-9002-4136-a2a0-babe33bf1c6f/.well-known/agent-card.json"
]
],
"name": "Kossa",
"owner_address": "0x3a4d8cda830442b42c94e2ab8c7a2bdbf717b4ee",
"raw": {
"agent_id": "191316",
"agent_uri": "https://centralcity.ai/a/Eehjr5",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Kossa 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/Eehjr5",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Kossa",
"registrations": [],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/1a4265c3-9002-4136-a2a0-babe33bf1c6f/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/Eehjr5",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-03T15:32:10Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Kossa 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/Eehjr5"
}What the leaf hashes
{"body":"38ed9b1decbe467dc0304eccc729a53f05b0f4cb285be427581fa0ea71b434f9","id":2604611,"kind":"listing","method":"sync.erc8004/1","observed_us":1793719930678091,"prev":null,"subject":"erc8004:5042:191316","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).
- 0x987e53e6671a4344d12f52b6dd8f2e89e0ea804adceb1c80080dfc5fc17afdd5
- 0x0dfa5dba39c7b65779ccf2858b7e6fc8b292573bf45626b617206287595f6bc5
- 0xc2aed8769e494ed1eeca4bf847f4009fb9fff31ddc5f5ee87c1dd636bb90b61b
- 0x0a1dc60ee13b5f92304b00bfc5b9f0b4fd55cf4eeb4fc556c539190ec2e99f23
- 0xf5b123466471117c8511979ab8d9bd7906912a96bd1a1573d602cd6c6d021d78
- 0x666b92678a5e952c2f6a34daae4233caec43d948cb2904ff484bc25ab69503ec
- 0xf612a78361980f1fcd586ee6357b80221306c6ef14ba0785d37fbf413efa6f38
- 0x1747b46b3af6b712418af46651277cac20c4d65c1c3eec4a7ccef2da226e786c
- 0x32a22714d71155e8697f4719524134f058c109f167cfd0050259017ffb7fdee9
- 0x4672ae03c444e7a7727e27f6aa18ef5b4fe04111313e9f36b3e7d8bf209f487a
- 0xdac76a8b417e866f86b490491d32602a19ef2fa82ca7cd0577aa137a21428212
- 0x38e30133f1f1bb0f8f512518218685d75c10b05442f62b96bba47f2441bde04c
- 0x5eb4d2842bc51d57ca080aa4dc7186ed88f6167e2072cde9ff9c592fc09f16cb
- 0x5c9ae28a0518d4809ee022d01782eecea78011098dc22bdff483a2aa8a023b62
- 0xbdd3407977f70b26d0af6e874d984fe982a78bf95057b70049009db10e525ebc
- 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
- 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
- 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
- 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
- Day root
- 0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
- Chained
- 0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
- Published
- On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7