← The evidence ledger
Evidence row 2273104
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:130217
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7501f42141d7e01fc9bef69dc35c712a4538abc8aaf46d9ff0bb2e8a4954a88e
- Leaf
- 0x807fd8115dac9db951b6c5e3ff71ee23b93b75687b5651d21593481f653c85c4
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/66bWwP"
],
[
"a2a",
"https://centralcity.ai/a2a/c7fc2ce8-a77c-41ea-88c0-6bbbbf88390f/.well-known/agent-card.json"
]
],
"name": "Biostis",
"owner_address": "0xb1dbb4232a0c9dd710aa1c0d31fad9e8e4ea2674",
"raw": {
"agent_id": "130217",
"agent_uri": "https://centralcity.ai/a/66bWwP",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Biostis 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/66bWwP",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Biostis",
"registrations": [
{
"agentId": 130217,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/c7fc2ce8-a77c-41ea-88c0-6bbbbf88390f/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/66bWwP",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793650724,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-02T20:19:21Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Biostis 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/66bWwP"
}What the leaf hashes
{"body":"7501f42141d7e01fc9bef69dc35c712a4538abc8aaf46d9ff0bb2e8a4954a88e","id":2273104,"kind":"listing","method":"sync.erc8004/1","observed_us":1793650761424268,"prev":null,"subject":"erc8004:5042:130217","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).
- 0x807fc99abe9782d44ece9faef941a0a9df6c320a03c0777d14437708c6c62e3f
- 0x79d454afd0a625499dda6ed5b073a7beba213c8fa93411b14eac02d9f32e5e92
- 0x43992ba30645952e49ca25d392a7db119e4d19642d84aaa8db9c53d713bcf9a4
- 0x47d4b554116f83cee8b278ccc02a9f2d2babdcc953d4d4aee094949c2ceea9fc
- 0x77469f2be0da7d6cd92bf6be031b590c4c1e995b7492cacb10b9d58b8ac93152
- 0x92410ea7c98940675523d1c3a3374e1403ccdc5338a9bf07a48b93cb92bd4fb7
- 0xe2ef4c020ece8f3cee725068e8eb10d472c08eea0e45864d1a7851de372430e0
- 0xcdfd8d85d09336752a267140c6b7b0ec9a112aef3b9c5e680c26f94ff74f9536
- 0x87e38dd9d4ae2d8e3538446289afb5491f7c3b4bdeb27e7fe67ee3b75cc58ba4
- 0x9c4b3e60a387df4b0791966aaacf82efaf67b66edd67fd05d46d1322d4040579
- 0xa393a68b746e025d8daf0e0981f2bc113caa7b5c6efc416b4f3c74cc574d5369
- 0x71305c272656503414016b5f13ff8cba828a7f92b6aa86f744081781398d24d1
- 0x6a06852e71057f53bcc6c658511dcfcda03ac93f8dd86e79a4db42c8e85677b9
- 0x5d40473873ebe898bcca4e49df524bf4345695f06abe3579f4bdb7b306b863f8
- 0x46991481c678139203ebc3c532867ce1643c09ddc33966c4fb48bb7f033ab22f
- 0x3b89dd05634a82075204d3c671f613081ddfd9df739c64c0a8f39081bdfa32c7
- 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
- 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af