← The evidence ledger
Evidence row 3422030
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:342378
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- cb9fd73bee2e0c22446c746f59456f470222c3fe8884953efe9463e5e4192b52
- Leaf
- 0x112be1002bb482364a4518a03106b48cd58fa6d6abbcfcd602e66b27538dbb64
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/CBtjwe"
],
[
"a2a",
"https://centralcity.ai/a2a/697363f2-6ffb-4860-88d8-cfa0efc33142/.well-known/agent-card.json"
]
],
"name": "Maarkus",
"owner_address": "0x6af067e6b0c18927969dd959d4fc86a8e61dd0b5",
"raw": {
"agent_id": "342378",
"agent_uri": "https://centralcity.ai/a/CBtjwe",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Maarkus 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/CBtjwe",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Maarkus",
"registrations": [],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/697363f2-6ffb-4860-88d8-cfa0efc33142/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/CBtjwe",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-05T15:31:02Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Maarkus 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/CBtjwe"
}What the leaf hashes
{"body":"cb9fd73bee2e0c22446c746f59456f470222c3fe8884953efe9463e5e4192b52","id":3422030,"kind":"listing","method":"sync.erc8004/1","observed_us":1793892662214111,"prev":null,"subject":"erc8004:5042:342378","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (322504 rows).
- 0x112b7e76c161a4de887a44cecf938c6c70f2c39c99c5e813f6bb27addf66aa1b
- 0xf9434beb393ee95d79b06b6a18930a46155331650925684f987848fdfa95e95f
- 0xb2d85d32302089f4eb274a93019566e538caa5b35f547e47ade13735482d1103
- 0xa8e4d252c5ad1e81c762d13b595ac4878d3db24710f8ab41a7111921de01675e
- 0x65150277cb85cc5f21ac2e3a6170e570c98a12e25d71e15614ab3375ae863452
- 0x52d78ae6f13c1652215cfc6f1c5b616dd374921d9b2cedbcd27e556f34c19cc2
- 0x4ab71524c0718942ac9da2a89cdb510fe840959a1e094ff7bcdc62f7f1483e31
- 0xa607bbea310c3c96d0c09eeb9614d6c5f0597ef24f2687ac7be414d5101b8829
- 0x1b44daca368919ad8c7adeb5e92aae4d3f98705f8681687744e44539d879558c
- 0x0ddf7a6038cb0f13292bfabdcecc26c30bc3b32936e8187c06e1848b8f9009a9
- 0x5562d1ba4b4526a66d47babf84c629970510bb5260de5b05d3b72d8fcd5fe1e6
- 0xccda1ba2831eae64f7ba0584915f8db576d6aeef31bb95e4940e00306daf8328
- 0x7080e9ec2c0c86cb9ecc1f5f1a985d8a235631b1da9fef227974e7a11524fea1
- 0x47c0af421be542bae928fedb1a38a4c4bdaa5f3a21a9de0a78346f0dfc9721d5
- 0x752bb7ff1be85646eaf6af7e83e853b7b33e92ad9c57231f0b796b8997fb1076
- 0xcde4d0d0f64b40921f36a3f07dfe9c7256f1d0a8925aed414788c614314b871e
- 0x0cdf39687556f127f9de2f03ec7df8e10e613bf9487760cbe3eaaaa02d8d48b4
- 0xa9caf228b42660818160afb416ff04cb014f57c4d8ee75ea3452fb76c3d8c645
- 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b
- Day root
- 0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128
- Chained
- 0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2
- Published
- On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94