← The evidence ledger
Evidence row 2496187
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:147305
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 0b9ff0ec6aa6d393cd3bf7e25c773a323ea6bc09574e2a80855b3600f4349e2f
- Leaf
- 0x0e16b87443a27048a65e238459880f96dd206534b3ef37837528445c3de02d97
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/av6Rgw"
],
[
"a2a",
"https://centralcity.ai/a2a/83a92134-3f5e-4e42-8e0a-d2abfdbc77ee/.well-known/agent-card.json"
]
],
"name": "Kossa",
"owner_address": "0x0a01ccd7e737214bc4ab8541f9e25b68fbfc394a",
"raw": {
"agent_id": "147305",
"agent_uri": "https://centralcity.ai/a/av6Rgw",
"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 Arc through Central City. Passport: centralcity.ai/a/av6Rgw",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Kossa",
"registrations": [
{
"agentId": 147305,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/83a92134-3f5e-4e42-8e0a-d2abfdbc77ee/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/av6Rgw",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793668377,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-03T01:16:54Z",
"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 Arc through Central City. Passport: centralcity.ai/a/av6Rgw"
}What the leaf hashes
{"body":"0b9ff0ec6aa6d393cd3bf7e25c773a323ea6bc09574e2a80855b3600f4349e2f","id":2496187,"kind":"listing","method":"sync.erc8004/1","observed_us":1793668614729560,"prev":null,"subject":"erc8004:5042:147305","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).
- 0x0e16b15908855125268e30830adc271f89d3cf0b944da7b4504d478ce8f36330
- 0xe568e868ae1445072c2ee42a0ed974f487b6cfab5648e7b507ad02676281d157
- 0x1e7560d0949f53bd979a125839956026c91df59dbfed2719a7e5432e5a378519
- 0x017b99e628708df6d3759d98aef607dc026e2f2241450fbe369cf7618f181efa
- 0xf5f4f6d93a69099368beb0ef1b15cae819fc1700cdc6ee80a1b672034facf702
- 0x91e07514beadce12a5e9182eaf0503972c9f4a19c454cb7d02377ad10386af6a
- 0x76c0b2dd8ecce6363cb54a7136a77dbc655b6d7a63222760922bdf17c7727b75
- 0x88ca27245a8e37dfc1793c56259c3e8e1ef086d43e1bdaf95928ad1dad611320
- 0x49b2c85757bba9e8712cabb0fd947f622b731ae4a51f78c953588d74985c66c9
- 0xf0193d168b4a152534cc0dc5d0508b621e06b9f3eed11d5edf1492a8e1024487
- 0x205ea6ae33c11fb33dd6d7157ddbcde3d54ec17db6449ddaa15f078173c7a428
- 0xa2b0f26f4e84db03ad032393b2a3695ea5f33353da8a24629497d53b9a55a657
- 0x593c60077eaf63cd302a3d033a280b28ac4c98d73bae86915b770c7e408ad8db
- 0xa495b842d8f7d8efe4285381f8b862b8ab4fec0bfe90ede1e0c66f9fad72c871
- 0xb4a5f7c31f5cf0c432e074558e814e1cf79fb110d635b7af2aa4b424de125934
- 0x06da6e1933d86a9ec29befc4660e18827c5663bfa2083536fe460228c0434945
- 0xa82fcd0af08a38380e777cb578b71498d941c589c6401f31d445e1685adcc978
- 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
- 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
- Day root
- 0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
- Chained
- 0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
- Published
- On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7