← The evidence ledger
Evidence row 1779074
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:13940
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 45938f7e70cac152962169c8a3467d31b88e757a56de3b9ddf483375ac328750
- Leaf
- 0x798bf8895c835ff4825e70e9ed11b164a95b29b2a8ebe24990795100852e3bf8
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/nyxNim"
],
[
"a2a",
"https://centralcity.ai/a2a/7e9e2552-f120-424f-8197-755872e17d4c/.well-known/agent-card.json"
]
],
"name": "Biostan93",
"owner_address": "0xb37ea343e9aeff0b638e49c8e42d8876475dc1a7",
"raw": {
"agent_id": "13940",
"agent_uri": "https://centralcity.ai/a/nyxNim",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Biostan93 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/nyxNim",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Biostan93",
"registrations": [
{
"agentId": 13940,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/7e9e2552-f120-424f-8197-755872e17d4c/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/nyxNim",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793553855,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-01T17:28:30Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Biostan93 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/nyxNim"
}What the leaf hashes
{"body":"45938f7e70cac152962169c8a3467d31b88e757a56de3b9ddf483375ac328750","id":1779074,"kind":"listing","method":"sync.erc8004/1","observed_us":1793554110872676,"prev":null,"subject":"erc8004:5042:13940","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (302406 rows).
- 0x798ba399996b122f8d0bc9cd1d7f55dd485dac4e3a0f830a176eea14d54cd694
- 0x166b1c319f81e837f28ac0e5bba142449f761a3077431dbd63ea57060e79b801
- 0x635d28fda87ccb4fc29e9639b6105e51dc3d8769ddf49bb33c3af1534250546e
- 0x5eecf0b55bff34c8725a7a8ecc4f95af65f51c6759e16c91401cd39db43e7b4b
- 0x85eb9abcb78365274077f303d5a72edd73b50cf5f496a3aa274eccc00d75b55b
- 0x68d97a5a95f7e4d708018cc636a1ea395e4a4de1fe5fd2f3e6108ce0ee8be599
- 0xaf3299fb3a69f4d0ebd274fd6a66f326a4462d2837354a13db789d4fb963a207
- 0x1f4e734026fb8a5fd3ce5f3a4080f50d76c59decfb4f30642242ebb975140303
- 0x6f3544ececaf1be4e6ca967b0f7cf007464643fd06d8ab2f71b9daa7c9e3eb05
- 0x7188593c60952d6824082bb6b82b81848e8e410a297ebdd711d297ff1344f282
- 0xc92ff022feda706253d0984f67372e770d513965321396306012910f7cc3d948
- 0x9a9e879591a3a0c0c16124efe0ff42b3c7409385d7343b036feed7c53c56aff8
- 0xa293e826c573b6aacb42bdfe34ebf9ff9c01a7719cb79774843599231be3aa36
- 0x7e26f771e19135838a4922e6feed7314ff3896114424cf5c9fb3c97de3545c5c
- 0x614dbc600bca0766e288d2a5ebb7709ac565230ac6acdc88a5e4a7a5ff53c58e
- 0xe329dbfb0db2c7f35334e66970a8ee37ee2d3356d34d692c10f84b6f7de65a35
- 0x0c618c42b286ad61acd8204aa6dcf024b8b041d3759aa585bf4e221abc39cb5d
- 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
- 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910
- Day root
- 0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
- Chained
- 0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
- Published
- On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90