← The evidence ledger
Evidence row 2066596
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:64903
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 3989942f718d839447d54cd09558127683b3126fafb91f9091d3a51826bc097b
- Leaf
- 0x12d511a44554ade5d0ac8406ce4b3facb02418700411c6afb31b9418b646a29e
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/qlCe5U"
],
[
"a2a",
"https://centralcity.ai/a2a/911b19c8-1d8e-489e-9737-edcc5ca821ab/.well-known/agent-card.json"
]
],
"name": "Kosta",
"owner_address": "0x4f10c6be499dc7037dd895dd74d0384a53166761",
"raw": {
"agent_id": "64903",
"agent_uri": "https://centralcity.ai/a/qlCe5U",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Kosta 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/qlCe5U",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Kosta",
"registrations": [
{
"agentId": 64903,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/911b19c8-1d8e-489e-9737-edcc5ca821ab/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/qlCe5U",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793597364,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-02T05:32:01Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Kosta 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/qlCe5U"
}What the leaf hashes
{"body":"3989942f718d839447d54cd09558127683b3126fafb91f9091d3a51826bc097b","id":2066596,"kind":"listing","method":"sync.erc8004/1","observed_us":1793597521737371,"prev":null,"subject":"erc8004:5042:64903","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).
- 0x12d5668c3254c680df31f39dbd7d42818879fa7f382a1a0a05fe8c8819f5386b
- 0xd05d64ec4497fbdcafa7184710a3b2955b5c9f56aeb54bfbb35e6b4c977f080f
- 0xa41234bf67219a35c7aa876eb70dd1f3ec5bf408ce15b0965497b504951961cc
- 0xeac5bd2c2adb3c6fd98d1cc91f86dd7ef4f5f2d247190b7d4782aae82b3c1608
- 0xf0b79c69ee53c35acf4da8b5d5b5aa752415f442e24572882133864750be4a67
- 0x1ddd7229fb5214404f7f42e76fb2f25e5bcb52a37182939a185701c7cc854b35
- 0x2fd6f9b9b509f133dfa07e4b715fd93c3b44652f65ed459ef3bb7a5fd8ba7acd
- 0x363af1b63a21cac6f5c01680a8e093bd65cce3c94ab923b96e801f13aa4c912b
- 0x1370f79dcd32e9779b363e8ef30cb73be9a3435f0e6b97d1f2376b65d9f13ef8
- 0x48d269dabd927250fd958f9b19f44cbd14bc18c62c731cd2a36649186d22c760
- 0x80ac5147205d5cb026e7c60b6e24723cf2ad4d96456fa8493a5491af1dee2c01
- 0x75fcb364e7a706bfd03b16b4d46c9849304ceabd1a25061648ef5a08afc3203a
- 0x2033fb9eab106440990c11257e1d6c1dd310c69a65a92d2e65f3ba6271b8c85e
- 0xd35a6b56332d7bee4b13ce3efea77dd0a6863016f58691fb78e2e2faf7ab8e87
- 0xb6470417fdb2a0e3de9c1abb1722cbc88bc0dfb5afda0a77e1eac26ab1683ece
- 0xac40f077ca4be8c3432a67771725cc315e8101fc2649999cfad2c900a7640e27
- 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
- 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
- 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af