← The evidence ledger
Evidence row 7466
Observed , by baseline/1.
- Kind
- listing
- About
- source_record erc8004:5042:834
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- ad81c5c3a4cc741f6e46dc2134e0b09a0a702ce544877aa97c8e330592c1d4a8
- Leaf
- 0xd34c0ceb12533715b1e8537b98962b84edb909cb366874f31edb23b652491d0f
What was observed
{
"endpoints": [],
"name": "Nikolai Scheduler",
"owner_address": "0x2e73421ac02ed2fb8a1201417ea306c6dc440197",
"raw": {
"agent_id": "834",
"agent_uri": "data:application/json;base64,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",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Nikolai is an AI scheduler on Arc that coordinates calendars and meeting times.",
"issuer": "ArcID",
"name": "Nikolai Scheduler",
"registrations": [
{
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"x402Support": false
},
"registration_fetch": {
"at": "2026-10-25T19:26:16Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Nikolai is an AI scheduler on Arc that coordinates calendars and meeting times."
}What the leaf hashes
{"body":"ad81c5c3a4cc741f6e46dc2134e0b09a0a702ce544877aa97c8e330592c1d4a8","id":7466,"kind":"listing","method":"baseline/1","observed_us":1793025283557972,"prev":null,"subject":"erc8004:5042:834","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.