← The evidence ledger
Evidence row 2555574
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:170910
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 2bd44401aea476774f59cf63135a93054e846421948bf67f19285c151e8bb30f
- Leaf
- 0xf36a733f1c3cafaabd523ebeedba1261f390e943f76d7091628d7546ce200115
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/brkAD0"
],
[
"a2a",
"https://centralcity.ai/a2a/93206174-23dd-403e-a99a-64ef14e09ca7/.well-known/agent-card.json"
]
],
"name": "Gradis",
"owner_address": "0x2a04fe22d52dad640d4938c332375f73266e3332",
"raw": {
"agent_id": "170910",
"agent_uri": "https://centralcity.ai/a/brkAD0",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Gradis 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/brkAD0",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Gradis",
"registrations": [
{
"agentId": 170910,
"agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
}
],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/93206174-23dd-403e-a99a-64ef14e09ca7/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/brkAD0",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"updatedAt": 1793695370,
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-03T08:45:58Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Gradis 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/brkAD0"
}What the leaf hashes
{"body":"2bd44401aea476774f59cf63135a93054e846421948bf67f19285c151e8bb30f","id":2555574,"kind":"listing","method":"sync.erc8004/1","observed_us":1793695558594795,"prev":null,"subject":"erc8004:5042:170910","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).
- 0xf36a7be8e477da79b1ae3c224fbd5e14aa8a7d57dd20f5e55aa07dbdd2ce8e30
- 0xdab73dff4a41a2df3e9f53abfe84108347ebda29282b0268cd00df4e346bbd2c
- 0xa817b738f5cb1cf060212bc4b03de271cdfd770b1ff7069b22c0363143809c93
- 0xcfa41f920ebe495d5fa5ab45eeb083c028d4bb3a112c5f0aea24c7fb35e872d3
- 0x6688b09f12a3107d11af7302b6eebab8caeb3d1af097a0627c2f011e65b7d095
- 0x9cc88c292b691733ac4bbc89856700cd64222e4902bf551fdb8bfea81ce82272
- 0x4a6e9de4c877b1d129ef9f437d7199ea0b0888729a89cddf00490dd680c2d8f6
- 0xfb6e080bc90c90721df51118fb17a67eca1276091d2668808e176c18363a85ef
- 0x5f0a6600b13a008d4430ac9673bec51115b0f778ed0a1bf3842a32f1ddf2c4a1
- 0x6a1ed1655b43773458abff9a8a2f785ece6ab31f7bf6d685a48b15a9ca67fee3
- 0x447c0c370405a7cd5bae61ede97226fee9e3daec26fe4914c576f16c9a3cada8
- 0x0d5cfc88bbad0c4b40a561ea1060fb7093bbc663a0c9b1ac75a449bd2a0fe549
- 0x0ea954b95dc4e26bb21744a0d424db9da57e2da18185ea0406675355cc4a2429
- 0xc456b1c820d564945f129896256bb07afc74e79940a2da0ea6e9440718d856c7
- 0xa29933ab8020ad948edbcf3e65194e73a6b113a0063231c1105b56c2d59ab97d
- 0xd60b16e6a71fbffc93a233ee89f916e50c0206a56f52c852b85e5a246b6b417c
- 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a
- Day root
- 0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
- Chained
- 0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
- Published
- On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7