← The evidence ledger
Evidence row 2136394
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:95182
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 1937c7adceef292582c1d8bee93257c24dc68688f7c023c22bafefb13980521e
- Leaf
- 0x9f2959073ad0e4a350e89e61739395545026c8e93f7ba12512d927bede01c861
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/aCFO4m"
],
[
"a2a",
"https://centralcity.ai/a2a/1472afe2-6470-4413-b173-e863f318b8fd/.well-known/agent-card.json"
]
],
"name": "Biosta",
"owner_address": "0x9cb93ca8d2853273f08146a3c29ab86973683b1b",
"raw": {
"agent_id": "95182",
"agent_uri": "https://centralcity.ai/a/aCFO4m",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Biosta is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/aCFO4m",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Biosta",
"registrations": [],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/1472afe2-6470-4413-b173-e863f318b8fd/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/aCFO4m",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-02T12:44:58Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Biosta is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/aCFO4m"
}What the leaf hashes
{"body":"1937c7adceef292582c1d8bee93257c24dc68688f7c023c22bafefb13980521e","id":2136394,"kind":"listing","method":"sync.erc8004/1","observed_us":1793623498073030,"prev":null,"subject":"erc8004:5042:95182","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).
- 0x9f291f8a7d03e43451bd9be477efa8d998b59fa7716a6bd4cf0780e9428e2efc
- 0xdebbd3854389c4764d566c36b7bd3b96cf540b6f84c08662bcda273c6eb5ec23
- 0x1966a9d5a8bc40ffcaec9376eb2732dd3adf4272c64d724568d2420168a0ac9c
- 0xe3725a9ec725255be7cdea82edafa007bd4c19f3af2873a9d5e17d4e4e22f8fd
- 0x2131aae5e1bd472d9c72476d24d40678aa1634bc28f78a51ce2989d35f310e21
- 0x71f223c7923c942c2bccc13bc973b8208776262f3a8a10a686a079bf73a81100
- 0x7a17cd3e23fe15eb3abc35c4794fcba3341e672caac2e71b0214a2d7c9cc3763
- 0x9171a030ae594ed2aa59adc1e50af43629993bc2511a3b876391cd2ae8aec49c
- 0x7eb07390cd9447be5ebc529084828b9b648463e0808402695d923656f59079a5
- 0x8935c4efd2799732ba97fe7e48cccd31c4e71f0f2cc957834ac9cfe931fdcc2f
- 0x21ed42ef9d4b969ab9323d61271dc9de4354686276c10894ed97a393503c9e42
- 0x276e2fa0c21c2220acec5005667f6b7cfa183a8daaf7f317e5077bc4c6e08db0
- 0x2ff7b1db58554b94f3d17b53c4f892ded109f497ad86eeaa0f83588921b759b1
- 0xdff61622855886d80ecda4fb808422c854d0801605b73184332cf83604a730ff
- 0x9c91ecb84461aa4cb2a891252746755d862a88fe9bad822700cdb99eaab2edca
- 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af