← The evidence ledger
Evidence row 3149501
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:307493
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 865c3fd474aa2499d9b490200cd87b70b49311c3f17952cb333dd7fecf22cccc
- Leaf
- 0x43fa0a84181e84f5fe06be8678998e11d7dc19afec867bf6b68faf3e901e6702
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/3zxrLs"
],
[
"a2a",
"https://centralcity.ai/a2a/66c4724a-fcdb-4f15-90df-1523186876a2/.well-known/agent-card.json"
]
],
"name": "Biantik",
"owner_address": "0x40d9235aea6988d35bbfc78bee2210b4b83c86e9",
"raw": {
"agent_id": "307493",
"agent_uri": "https://centralcity.ai/a/3zxrLs",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Biantik 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/3zxrLs",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Biantik",
"registrations": [
{
"agentId": 307493,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/66c4724a-fcdb-4f15-90df-1523186876a2/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/3zxrLs",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793834220,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-04T23:19:49Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Biantik 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/3zxrLs"
}What the leaf hashes
{"body":"865c3fd474aa2499d9b490200cd87b70b49311c3f17952cb333dd7fecf22cccc","id":3149501,"kind":"listing","method":"sync.erc8004/1","observed_us":1793834389420150,"prev":null,"subject":"erc8004:5042:307493","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (424109 rows).
- 0x43fa429507af060d826928f83438adcdd45569555d0118df2a7761c60e9ed884
- 0x670e09463c39a186adc0f607373aaa2eaf4d1ffb91196fa4221fb0ae0814c204
- 0x872af766e8ba825beca2956beffcb7800ec2dcdde4fff375f66c201949075c0f
- 0x2a08acc2f48774aae978a32381c65fa665abea7bfbc5837d2de3c8c6aabd3663
- 0x3cf4b9a96b4031921e1bf0d8a5850ed7261d0d56e90e400283fbacfb67f85be3
- 0x2c16007e28e895497d5c104c48fc55ee6e241d727052e80847b78adb2fe456b8
- 0xe08d1c3ba91c5390d01d47ee6310239fc8e817e2766d9d5e83f0b88e271c0fe7
- 0x1202b24a7a861320ea7a1f0a50f7a0fe9a826c78c64c4c89ce64588ff70e537f
- 0x0eb03ff32753bf848b57ea12750b23b58c5815d55c51257c3ff98e3f4e779a50
- 0x40a2bcd3b75855487ef7c2009600dcab2c22632919a17ef5235ff35fb57f91cb
- 0x86c9ea0c5f375b0b368d95b30af71dd21e7928567ed585917d182ac0da824f01
- 0x907c15404d07ec342a78b116484907d5f47d84a780f09e73b76f472aea3c109a
- 0x9d313acc513bf50fad94a2f2250bf508d11d7a363a2c544528e2fc4ce0dfcbbf
- 0x3775ac98947ea3444f8e9066b97ed6d5e0ed4bfd990afc8683a340b7b187697f
- 0x0e7da910ed6633cc83110a62e4cfaf050cec994a935be0ff6262890125f0d2d8
- 0xc8267b28cec4406122f99bfc9732f9bb7e0af530b05633084110c1bdbc4a7cd5
- 0x84ade16fc3dc3a4a6aa46b581fe43195d593a51802c7d0a75e650bfd9c3ea4df
- 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
- 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5
- Day root
- 0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
- Chained
- 0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
- Published
- On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345