← The evidence ledger
Evidence row 2948025
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:225423
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- a572ce8f439a374565db626c87d3a90471ab3125bd9d55128af0a79f8ebeac61
- Leaf
- 0x4c6f0d3cea62d075e6af7d203ec5364910de0794770f9cb41d8cd8e62af66f8c
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/qvtFtt"
],
[
"a2a",
"https://centralcity.ai/a2a/396a5f28-18d8-403e-9d6d-fdfb64bfa2a6/.well-known/agent-card.json"
]
],
"name": "Biossimik",
"owner_address": "0xdbe296f6ba271e6be295c95c90d1d8b0b54085a6",
"raw": {
"agent_id": "225423",
"agent_uri": "https://centralcity.ai/a/qvtFtt",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Biossimik 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/qvtFtt",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Biossimik",
"registrations": [
{
"agentId": 225423,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/396a5f28-18d8-403e-9d6d-fdfb64bfa2a6/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/qvtFtt",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793766665,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-04T04:32:41Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Biossimik 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/qvtFtt"
}What the leaf hashes
{"body":"a572ce8f439a374565db626c87d3a90471ab3125bd9d55128af0a79f8ebeac61","id":2948025,"kind":"listing","method":"sync.erc8004/1","observed_us":1793766761776422,"prev":null,"subject":"erc8004:5042:225423","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).
- 0x4c6ef7670d1b052de0317ac440326a5d7bd6cd6c1f32511476ec737a11866cec
- 0xcbd052e7ef737ab66b24d7004d28cdad1be7a5bcaefaaa8317043105b7d7e277
- 0xe511c863b45ca05640dfa721d9397672d27d9dbddb21b78fc981baeb994e67c2
- 0xf943eea8caab0d952f2add9bd8011ed5dbd68ca40dfd634485612e6da0184c9c
- 0xd30e8d11553a3a58e15094b8cad450ce6906c552e51b42e81c2fcdba9a670d3f
- 0x830128cc7b5a2acd041f455b354fe6be6ff64a93cc9beba0ffb7b62e3d928229
- 0x57bca27305b558c6e7d7fec69873be37be22d3136868d129396a2bb54da60d2d
- 0x76e025a7ee2c243a145da9c06945a72a8ee0dddc753aa78bdecdf7b8b29a52e9
- 0xfe3c25182515a7c02134440f23a535a547f36a0956860570b2b5b2a1d91375a9
- 0x719645fcc96d9b507a8f0c1c247149fe9a07c53bb5d50cc8aee5b4377d97c7e5
- 0xf5ba5ad7948bbe98e4360727fbca8a54b02a4f89daa38114100d6fd3471c0207
- 0xc4777045f8a872f63135f68bc4126a2e41209d61a622ef5eddb3996ee8a0da90
- 0x3c922806ddf9a5b276c9fb77ae991dd0931af4476d7d13a105f9a3d0da266f25
- 0x522a25971cd6b6d3e9a052dc11f957b2d317b322866778d5d8ebb96f44d35189
- 0x544c1b2a55fd13025d2c8d59b81cb53522492b432ac735cbefd94b47b754d5cc
- 0xc8267b28cec4406122f99bfc9732f9bb7e0af530b05633084110c1bdbc4a7cd5
- 0x84ade16fc3dc3a4a6aa46b581fe43195d593a51802c7d0a75e650bfd9c3ea4df
- 0x02f64ca19e7d9b09718851d2ce3abf641982580de99411626d894607cf386cd5
- 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5
- Day root
- 0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
- Chained
- 0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
- Published
- On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345