← The evidence ledger
Evidence row 2596642
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:188451
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8f09393ba73540e3bea63689a2acf7494b7634513d06962a2058a0dc046d566f
- Leaf
- 0x9d88a5b4bf4fd8cf934fbb6cb9e001ce862c452e5e2fd0f72abfa7d4657beba7
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/wr1HJL"
],
[
"a2a",
"https://centralcity.ai/a2a/5fd88799-7fd8-49f9-84a0-44c73d5f938b/.well-known/agent-card.json"
]
],
"name": "Nivabel",
"owner_address": "0xdd492379158c3693d814d3af69de56e28a61d97e",
"raw": {
"agent_id": "188451",
"agent_uri": "https://centralcity.ai/a/wr1HJL",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Nivabel 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/wr1HJL",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Nivabel",
"registrations": [],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/5fd88799-7fd8-49f9-84a0-44c73d5f938b/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/wr1HJL",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-03T14:35:59Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Nivabel 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/wr1HJL"
}What the leaf hashes
{"body":"8f09393ba73540e3bea63689a2acf7494b7634513d06962a2058a0dc046d566f","id":2596642,"kind":"listing","method":"sync.erc8004/1","observed_us":1793716559441285,"prev":null,"subject":"erc8004:5042:188451","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (425475 rows).
- 0x9d889ab987ff8a6b1232af0d5869f69cd43f197d27d1034e5134f81b08d2bbec
- 0xd5b7eb27969611fac44529dfdbc6368ad67e1b33ca3b335894ca1e58ef038407
- 0xc525b0e6a57db07d9da13bb3ee26675b212959c965c649b2a45f5dd40b60d039
- 0x579fec7215789472ee40c996820db0e8c2fd6c947c945636314f087b2ddd6921
- 0xe720ba4ad4da5cde95be5cfe736cc3aec4519ee1b15cc2b24898332970f269e0
- 0x0432fdfb12dd1aa94aa7d1cfce38bcb014b8a07ffbb40b48e6d055253716f40c
- 0x89b8cd57bad76bd03636dbf3bf6e59ce59e095fb8eed15ab1880c96e86a5c559
- 0xd619eb7d046def83faa9222f6f4aa5894fe51f5b7bbe71a63b4ff5ec6485c2d3
- 0x665556cf005515ad65baae3888f37839486df56c312d0d615c903d49ddad289e
- 0x909cbdc0e4d28f9320f8be1f6aee74b26e653e30c3220d8d4d5c4d265365c18d
- 0xaa75af64696195f76b1ceda3bdd38b8d64a6e2d6d6a310d91a1003d62b8fb5a9
- 0x1099287727562c14a7abe0a83bbff73550f5edf7888838722a66e395138b4bba
- 0xa213237248bc217986c237aa7f834054c4c09d2887d4a5c8ab351dd9ccee40bd
- 0x7657cb1e96189305f3276517cf3716f7cacdef06e4b876b60d2c0bd8b60fda96
- 0xbdd3407977f70b26d0af6e874d984fe982a78bf95057b70049009db10e525ebc
- 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
- 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
- 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
- 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
- Day root
- 0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
- Chained
- 0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
- Published
- On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7