← The evidence ledger
Evidence row 2237452
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:126243
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 007b96dd17f0074082a229e21656621609147d177ef4f9331aab153a7fa96955
- Leaf
- 0xd6e4e6b812cea9599ec2a8b89cbe23514567f09139c237e6fd3d354946f5156b
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/0t6pD1"
],
[
"a2a",
"https://centralcity.ai/a2a/7ac5164b-72fb-4376-b0df-709a0f687e2a/.well-known/agent-card.json"
]
],
"name": "Biokano",
"owner_address": "0xb93912bbda8a8df2f1e00398e0d7b4aa8074351c",
"raw": {
"agent_id": "126243",
"agent_uri": "https://centralcity.ai/a/0t6pD1",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Biokano 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/0t6pD1",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Biokano",
"registrations": [
{
"agentId": 126243,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/7ac5164b-72fb-4376-b0df-709a0f687e2a/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/0t6pD1",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793647361,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-02T19:25:50Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Biokano 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/0t6pD1"
}What the leaf hashes
{"body":"007b96dd17f0074082a229e21656621609147d177ef4f9331aab153a7fa96955","id":2237452,"kind":"listing","method":"sync.erc8004/1","observed_us":1793647550316787,"prev":null,"subject":"erc8004:5042:126243","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).
- 0xd6e4772b4b45fd56e9473cbf150cf4be84a8df861491e7a7adb223e9b4bfd1fa
- 0xf341d8fb53a2f07718a3bfd5a268cdfe1fbf0402c4e7ee650643b7ccd794da6b
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- 0x78c3cd2baecd4f716430d618b6a59227ff653672fe22bb428f6dcf589a31235e
- 0x0fc33e544d84b480a06581ea756ba8b66c204e9c797ff03b99fa9ab5514a7fc7
- 0xe9a6b560578d01739eb1558f6b26736c34646d5400627777bcbe1ddc94fe2cc9
- 0x29b8e7030a795d078a60932b30a9d0554f0e10709bda663c7a87f7f9a025b544
- 0x16b875d15ea356d36ef86fd38fdfda83b3e122c5f0502f35658ebdb0a30e7337
- 0x1913922532588e47a92aeb460e562a7c24f85b5b4142ce7c6e459c4b2945f90b
- 0xa0e92142d9207dabaf953f2eb21b1ae6f765b6bde301fc2505749d0d1b0168b4
- 0x9c65c76829eca17a0af68f0dc695c440cc0bffeb2a468afa53dc6263619f7f01
- 0x7187889e0cb6879609e91cd98c7d6289b291639a739c761b50ed349bfcd02009
- 0x0a0b06366ac223b57a065057db885c66f1a3225264321b3732529557f57cf2a7
- 0xc94ac971f2e2765086823b6227f70a7d3fdcf267884d07ae0a3f85c1caf941d2
- 0xa9134f4ed9cec34e13ba243b6a51db73753dbbb3b48c63bd82b22694813d2b02
- 0x7ddefa7d79e7640c3fed21ee4472689415182c41a0258ab04a81d60495f4c40a
- 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af