← The evidence ledger
Evidence row 2107018
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:83109
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- b1e4bc7f792cc039d771280ace271c27933385c6a3eefc6e6e2235055b3ea6de
- Leaf
- 0x88897b1559e890bbb015dc5d219849118d77d4f8870732c9664f8b091d207e8d
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/4jpf4m"
],
[
"a2a",
"https://centralcity.ai/a2a/f2c51885-8730-4cb3-92ff-3bfa31f39e89/.well-known/agent-card.json"
]
],
"name": "Biotik",
"owner_address": "0x6894475af156d5c40babc68a6a73c9c33d946aa7",
"raw": {
"agent_id": "83109",
"agent_uri": "https://centralcity.ai/a/4jpf4m",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Biotik 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/4jpf4m",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Biotik",
"registrations": [
{
"agentId": 83109,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/f2c51885-8730-4cb3-92ff-3bfa31f39e89/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/4jpf4m",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793614024,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-02T10:09:22Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Biotik 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/4jpf4m"
}What the leaf hashes
{"body":"b1e4bc7f792cc039d771280ace271c27933385c6a3eefc6e6e2235055b3ea6de","id":2107018,"kind":"listing","method":"sync.erc8004/1","observed_us":1793614162264535,"prev":null,"subject":"erc8004:5042:83109","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).
- 0x8889692e1313ff046293fdd5c07108aa5f8bf05cd1983bbd97f824d83982891f
- 0x7ba27eb7b983bcdf1b798fe265598d1eeffa55cba4044fc8cc8d6554e9ebd351
- 0x1d87ca3a33bae9d82659963cf55454677e786151f039d6d9d43c623377be7fd0
- 0x525966c87be132059a981c9bcd150a3d8a99d1301c57786240ef11aec08face6
- 0x7c344731a044024fec49cbbf05ea4f046266318a69109a7e7e2ff0c999e80b53
- 0x1d4d19f1bd64b132067811a2b39c15e13cd64ea7cb9db3820bcc065ebb2f876a
- 0x89e88c92610ec1e5e53baf395ec9434f884fe699ec1fd0978c1dcf7d5b04b38b
- 0xc0d004cc4050672db75b8b9331a076f2fd64bb032800ca444719e35cf284003b
- 0xb261f730978ac140b7b80fd0492395b33f2e3c2bf9b1a6d4819ed7777b4a7420
- 0xe10c3e50c89e7a4309ebdf6229cfbf6761ee135172762bcf3fd71127b8eecfee
- 0xc9ddd9397a09a790432e5bc66a52fdda7d05db98411d2b03e287fee2f371b52d
- 0xb29458b26be0efcbcc070d6949659b739465d717f9b08a7e55e19441848f2850
- 0x650762fd3ea664db9c82e9fa57a70645b039ff3d3dda93972e6da6c3b1355d26
- 0x45296e5ab7be6d8163e528d05039d4c685fc8962fc80b797c1d68574b10b444c
- 0x510fa2c647d18bb802da12cf41e17d136163e6624e69ed77e15235c4284b69c7
- 0x5e23ec5954c11a4530aab8c635a72b12bcfeb6fcb03c6cb1a990cc1743424543
- 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
- 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af