← The evidence ledger
Evidence row 2195426
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:123512
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- bb59f2e3bb66bf12490f8b079e738477720f18068c9e48a4ecb6cd5505c856db
- Leaf
- 0x3682f901e518510c0dbf046ee06f6a6ecc1ed783fdef520787f5e38102965427
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/zQfjqQ"
],
[
"a2a",
"https://centralcity.ai/a2a/cf2a6864-1381-48a2-afc6-a62497ba5f68/.well-known/agent-card.json"
]
],
"name": "Niossik",
"owner_address": "0xf2bf1ebb5358e88c604151820acb11e3714725c7",
"raw": {
"agent_id": "123512",
"agent_uri": "https://centralcity.ai/a/zQfjqQ",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Niossik 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/zQfjqQ",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Niossik",
"registrations": [
{
"agentId": 123512,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/cf2a6864-1381-48a2-afc6-a62497ba5f68/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/zQfjqQ",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793645555,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-02T18:55:11Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Niossik 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/zQfjqQ"
}What the leaf hashes
{"body":"bb59f2e3bb66bf12490f8b079e738477720f18068c9e48a4ecb6cd5505c856db","id":2195426,"kind":"listing","method":"sync.erc8004/1","observed_us":1793645711352440,"prev":null,"subject":"erc8004:5042:123512","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).
- 0x36830065ac9703a942660aab295d469087d358ca18bd1126053af3aa152ee46a
- 0x9297b2d337987102b9697e8f9e6c65bb0397b2c1681bb9adc22601bcaca26572
- 0x88c05fa64088bd7ff593a51f5b0fc1bf41248ec30aaf5e284a18740d15638276
- 0xfc6dbf919f3672986522bb627e890a2f869efe86a0e1beb9f8e204704848570c
- 0xae58cd5ad83b943f0dc0a8e25777b71f435452cc3accc8a9b9c86b68f81f8f50
- 0x1cad8da722d89c94b81921e9c6405920d8772332afb95a6114ed2bd2ac3efe4b
- 0xd6c16938f7f79714df8bd1764bb948f3bd60777647826168b125ff6b4f8de87d
- 0x2861cb643168dac1b4eeedec889d8351a19ee179a64e7d161db703e66aad4205
- 0xf2d7dd8a327c4ec55172d651bc94549208663579a95aeac371ccd8eaa431d90f
- 0xd5a193bc735da49c52b7ac1ba337e64263c6f8e6e7b501693c1fd907e46a1153
- 0xbbc3ba117939999fb474e22af0bc8e761d629e3ce88e75d37ff20c53fabc3b2e
- 0xf2afd692f9ecc84d8043fb7e2199fc37af44471368455fe6d2ad7651f20ae534
- 0xa0e5887b42201f4bffeb4ff69bd41372cabcdfc84eaf669d71bc4550864cf581
- 0xeda95b8bf6c7d0b27dc5b32d6a6006255f41e0f6bbe80842a49daa792f4de811
- 0x464ce6fe060d0a6c4e810b71501e55084086148f7daf393caa14462b1a777022
- 0xd42916b5c6441e9c8d91ff91715af1489cb83dee26d47e7da107caa4d2a68b65
- 0xa20b9be86af7d690e040c9060a373b2fc5498edf3432f43c26f74fa2febc1e9a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af