← The evidence ledger
Evidence row 2605829
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:191933
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 21b417ab0b669651442be14f8458c53cda9b0990b0cf7291fb310aa9c64d3198
- Leaf
- 0x644ab838abac8685b434cb63ce10993dc64e56c92fee72aa22122f249198cbc6
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/XWDvde"
],
[
"a2a",
"https://centralcity.ai/a2a/a4fc128e-2458-4ff7-90c5-8a065cdaf192/.well-known/agent-card.json"
]
],
"name": "Gradias",
"owner_address": "0x79f399ca198a2774f2ff4d010d484f6811718f74",
"raw": {
"agent_id": "191933",
"agent_uri": "https://centralcity.ai/a/XWDvde",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Gradias 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/XWDvde",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Gradias",
"registrations": [
{
"agentId": 191933,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/a4fc128e-2458-4ff7-90c5-8a065cdaf192/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/XWDvde",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793720872,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-03T15:48:46Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Gradias 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/XWDvde"
}What the leaf hashes
{"body":"21b417ab0b669651442be14f8458c53cda9b0990b0cf7291fb310aa9c64d3198","id":2605829,"kind":"listing","method":"sync.erc8004/1","observed_us":1793720926990594,"prev":null,"subject":"erc8004:5042:191933","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).
- 0x644abacf40c20a32dec789aad5f0952fb1effaf17ef87666e9e687bb05a733f0
- 0x79cfedc2e524719bb0ad4862e943cc9c791901787c89f5e0179aebc4fecb0f34
- 0xc2b65d77c37c213ac269c75e403821621e930997d1cd363fa2aafc26ee3a491a
- 0x322435960f3a38f5a15447009392a4235d1d8242b0d2dd77daac245f69bea0ab
- 0x77b4568fffe0c56ef44944c985d27e670463dcb512ad23b60741f1bad0c7e525
- 0x219dffce7769e6442458301afa2770d4b901af83cf4e8a1cba170495b9cdbc57
- 0x0c0cd85f6bd01060aadcf521a9f1395fd2810cdf7be4e6227c151a21a451b56d
- 0xdbce2c47a34b0c9d231529bef53773bc106ffe9ad68556df582e469c1798f15b
- 0x5b5b6f37582a0c031c1928ca6672d0edc388853371e462aca136e22babe5eba6
- 0x11e507ef9793f58dd989d2bb9dcb03380764a230fd0f8267165a2659c5162059
- 0xafcd595736968dd1e344c5fb230b5235ba453f3057fe742b3cbae4dc2e41c837
- 0x8d864bd17d983215590f59626d5e886359bc1819dc138db556538de27724d0dc
- 0x935aada10f117485a9e2b905a05d3c89c0ea4c0d9218f126f2818246c6d7a5f8
- 0x7888f4af6f2ce9e8a2789d6262f3507d19501a0a365770aaf709515f60b6e8f2
- 0xa8458bc8c8ab1d4945ab9da0d4203ddba2468a0fef808e9febae01e3e86bcd40
- 0x4f2735e4d41cb2a5d48f6769cc066ea1066bbcd0623dd42fe7bc81e54092cd64
- 0x3ef2d6c56d2bc5990e646c07605e90ed24d1c642cbcca8f60a35422b8b7981ee
- 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
- 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
- Day root
- 0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
- Chained
- 0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
- Published
- On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7