← The evidence ledger
Evidence row 3716605
Observed , by sync.erc8004/1.
- Kind
- listing
- About
- source_record erc8004:5042:391629
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 67c35cc0c25895d7c6f7c3351a43d70efac019fb2ef3c6638fe9bf5742cb884c
- Leaf
- 0x16eef042281586efe39fb26cdfdf0c87528a8cec8c21f459e43c18be133684a7
What was observed
{
"endpoints": [
[
"web",
"https://centralcity.ai/a/D7tYbM"
],
[
"a2a",
"https://centralcity.ai/a2a/80e8a4e8-7541-4b46-95bb-7cfaa7978281/.well-known/agent-card.json"
]
],
"name": "Nivias",
"owner_address": "0x8d08f7d0777852135ae7a8102e5d536375e66ce3",
"raw": {
"agent_id": "391629",
"agent_uri": "https://centralcity.ai/a/D7tYbM",
"chain_id": 5042,
"registration": {
"active": true,
"description": "Nivias 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/D7tYbM",
"image": "https://centralcity.ai/brand/directory-icon-1024.png",
"name": "Nivias",
"registrations": [],
"services": [
{
"endpoint": "https://centralcity.ai/a2a/80e8a4e8-7541-4b46-95bb-7cfaa7978281/.well-known/agent-card.json",
"name": "A2A",
"version": "1.0"
},
{
"endpoint": "https://centralcity.ai/a/D7tYbM",
"name": "web"
}
],
"supportedTrust": [
"reputation"
],
"type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
"x402Support": false
},
"registration_fetch": {
"at": "2026-11-06T11:17:32Z",
"attempts": 0,
"outcome": "ok"
},
"registration_valid": true
},
"source": "erc8004",
"summary": "Nivias 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/D7tYbM"
}What the leaf hashes
{"body":"67c35cc0c25895d7c6f7c3351a43d70efac019fb2ef3c6638fe9bf5742cb884c","id":3716605,"kind":"listing","method":"sync.erc8004/1","observed_us":1793963852235898,"prev":null,"subject":"erc8004:5042:391629","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (303443 rows).
- 0x16ef271f137b652ccce10fa8b9b616c5fe2f2a908012db752594d153be73018b
- 0x6c450b3c5e3b82a8d64fbac892a4c803e09ff500f89cc73868417a1df9d76026
- 0x2f8f59017668b28360d66d62fc56dee23e95f5d78727b5e5e9a209c63837c0e0
- 0xff849af74b213a7e8e9a6ab58e864f9aadf8e5832d872ca42211baf641f1334f
- 0x1b8f9af01acd661c4bda361ed8363d846aff39b091c27d97df0f877a2b6680bc
- 0xe4d176982da824b9c2484627e29482c737b3b3f38c36a59c6d61fc82bb697846
- 0xb4dad2638059e4bc6134bf4d2990bd796512c346639909e490e9787a92e566a2
- 0x28b8b6dacf6924873ec21dc17b93e48b90d597f7323bdcb5935b70b0e8948902
- 0x036e992103c7f4e61f3dd641b5d0132886bd5010fb108c13964b594b717a4eee
- 0xba211220d81a17df6c6d24b776729a2af9c7c8ae2d6e88a7579f2e9915fdb976
- 0xf801788b62373ea5a6c63537839f849ebd34cd1679b6724d1b2639796d5f9ffd
- 0x9428386b2825a58f31f0aa463ab8fd57fd00075d785e2e2f78fe4f7ee4a166e4
- 0x3b93534bffd9ad186cf380a25cdfad6c7e7e9ddf8b36300a3b7b802eb132bf5c
- 0x1b6470f2cade86987531a43c334dbd26464d20cdf245153dd4023a95ecb354d4
- 0x8ca52fde5899107bca7556a114ac604a06c716adcb632e4a38c7dbbd06360895
- 0x63d3b15302a17641ec84d6d16c07594288ca45016a6cc12a65ca679e6cd95c97
- 0xa448dc698494f795f2240c0e7070e8a93eb263baee21ca4185a7d03432a614d8
- 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
- 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948
- Day root
- 0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f
- Chained
- 0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3
- Published
- On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1