← The evidence ledger
Evidence row 2188881
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:120826
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- fb9ec5b15abc0104da201230e1403afdcf1ef3f727f004cfdd2d702ce2bad4a3
- Leaf
- 0xb5cf78e9b35ec56a4b2bde0218b62d3e0624b03aafa1bfc5c3a3ea678cb87108
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/olJcxu"
],
[
"a2a",
"https://centralcity.ai/a2a/fdb39806-8041-4b8d-a69b-e7976178f42a/.well-known/agent-card.json"
]
],
"name": "Biosler",
"owner_address": "0x202e833c3b593a433d745fba3937575c7a20715b",
"raw": {
"agent_id": "120826",
"agent_uri": "https://centralcity.ai/a/olJcxu",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Biosler 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/olJcxu",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Biosler",
"registrations": [],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/fdb39806-8041-4b8d-a69b-e7976178f42a/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/olJcxu",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-02T18:18:34Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Biosler 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/olJcxu"
}What the leaf hashes
{"body":"fb9ec5b15abc0104da201230e1403afdcf1ef3f727f004cfdd2d702ce2bad4a3","id":2188881,"kind":"listing","method":"sync.erc8004/1","observed_us":1793643514431650,"prev":null,"subject":"erc8004:5042:120826","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).
- 0xb5cf506e4a24172f845c722cdb590b39ec6332f5bd2b194d6f7b450d4e3c04dd
- 0xe96ea2c9357d6be3b99fc77a76e0cc5760823b0f1b744517d4d2f325c30adfd3
- 0x69887f04f31be7dd074f8e86a7be9466391c868a57912f45eb2584529d290057
- 0xe49478fac0e387a2ea981f542a9b5bfcabcb2d5eb3520dbe450273fd249a9c98
- 0x26f89cb4f45642c71439cd33cd63f2ba7766a3ac6ca8efa59c60de388184b3a7
- 0xda6cabcbce698228c2ec53c98f251c37aab535b92286789ef6adbc0dcc71e93a
- 0x2836b7cc5056549840ac0e3fae228e38beb6073a2cebfc87e2d5a826cb3db84e
- 0x6db6d86adc027feb331a7d86498216f044499f722551e60de21c213a84373554
- 0x627d2479703f75d246c49521c44a2bb5808e3eaa12b0b2e41f8bae86664c0069
- 0xc4421264acb293617e4559bd2abc2e62b243c552b52a5bee8d5501789227dccd
- 0xf7e87ac559af2cfc5f27158cbcf0e96bb750fd5ab51330b9fb71fbec1012b4e0
- 0x5d48d61efa15a1eaabc2b8fe3288726baac176ec765001989034339357eb596c
- 0x030e61e00342e920981555e2e665fa5ec4a741b10a078f282daa829896c87583
- 0x08da04eef748b7ac08271324db18913501d72c52afa240bf3f08b6da46e3b97f
- 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
- 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
- 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
- 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
- 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
- Day root
- 0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
- Chained
- 0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
- Published
- On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af