← The evidence ledger
Evidence row 77026
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://kya-br-agents.marcelfons.workers.dev/v1/agents
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 3f59c4baa040adfbf4d296e51b2e33d563930f254c6a13350e71921259891dc9
- Leaf
- 0xd17cf55bcb0323ef86af7e70cdb2fb07b90085a78d2021aa8916885f6f3a5070
What was observed
{
"endpoints": [
[
"x402",
"https://kya-br-agents.marcelfons.workers.dev/v1/agents"
]
],
"name": "KYA Brasil",
"owner_address": "0xb5a72bb9106975869165c380e52d157388346626",
"raw": {
"accepts": [
{
"amount": "250000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0xb5a72bb9106975869165C380E52D157388346626",
"scheme": "exact"
}
],
"description": "Register an AI agent for a Brazilian company: agent key (EVM address or Web Bot Auth Ed25519 key), CNPJ and a mandate (JSON, validated against /.well-known/kya-mandate.schema.json). Returns a one-time challenge the agent signs with its key and the company signs with its e-CNPJ (CMS/PKCS#7). Price covers the checks at issuance.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"agent": {
"id": "0x0000000000000000000000000000000000000001",
"kind": "evm"
},
"cnpj": "00000000000191",
"mandate": {
"actions": [
"pay"
],
"currencies": [
"USDC"
],
"max_per_operation": {
"amount": 100,
"currency": "USDC"
}
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"agent": {
"id": "0xAbC…",
"kind": "evm"
},
"challenge": {
"expires_at": "…",
"id": "…",
"text": "KYA Brasil: prove this agent key acts for a company\n…"
},
"credential_id": "6d0b…",
"next": {
"en": "Sign challenge.text with the agent key and with the e-CNPJ, then POST /v1/agents/{id}/prove"
},
"principal": {
"cnpj": "00000000000191"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"agent": {
"description": "{kind: 'evm' | 'web-bot-auth' | 'erc8004', id: address, base64url Ed25519 public key, or eip155:<chainId>:<identityRegistry>:<agentId>}",
"type": "object"
},
"cnpj": {
"type": "string"
},
"mandate": {
"description": "JSON validated by /.well-known/kya-mandate.schema.json",
"type": "object"
}
},
"required": [
"agent",
"cnpj",
"mandate"
]
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-13T16:09:54.327Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-13T16:09:53.411Z"
},
"resource": "https://kya-br-agents.marcelfons.workers.dev/v1/agents",
"serviceName": "KYA Brasil",
"tags": [
"brazil",
"kya",
"agent-identity",
"kyb",
"attestation"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Register an AI agent for a Brazilian company: agent key (EVM address or Web Bot Auth Ed25519 key), CNPJ and a mandate (JSON, validated against /.well-known/kya-mandate.schema.json). Returns a one-time challenge the agent signs with its key and the company signs with its e-CNPJ (CMS/PKCS#7). Price covers the checks at issuance."
}What the leaf hashes
{"body":"3f59c4baa040adfbf4d296e51b2e33d563930f254c6a13350e71921259891dc9","id":77026,"kind":"listing","method":"baseline/1","observed_us":1793025493250907,"prev":null,"subject":"x402_bazaar:https://kya-br-agents.marcelfons.workers.dev/v1/agents","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).
- 0xd17c54b71a94563070008dda6a8eb51cdf33fe15373541993fb2fc82f7536ecd
- 0xcfb517969cf4bb8bf5653adcebdd14d7b30141516f1ebc7723a2cc08ea083a51
- 0x6e0da38e691143a6d521f36620ea1eeac71704424c1aa26ab2cfe40b6cbb5a11
- 0x25ccd384baaca95f6398b312373813ba926ea6c6eb06a1be929230c857784abc
- 0x52befa481e09d479511c1bf631da30b4eea3265f1c2ac4b0b383096d670321e4
- 0x8343b71a0ac0a48c5453855af772ad01d315fd459c27da8dd74cb326df3e1490
- 0x9dbc5e95905a3a4bfb3835bce7f42bc4559ce4889de0cbe9de5d187bf55f81c6
- 0xace049bb7f2708819690655f09b08442414740beb2fe9b68abc695c43541c1a2
- 0x35eb5978e25ac6d537082f4ea6c6a25934ff6c541003e7e235a1eae0751cea6b
- 0xdefcd4fc2ebdfaa82bec33833639fbb6712ab7a9bb3beafebc53c8b103648d9a
- 0xcbb746ffeda31ff1f1b0d9f74705fed23a3c2abac5d325d65e8e867a7b5e6307
- 0xa4ec009cd8db00b48fa2e4df84088950b4d34c37254de09f5e3789441c0c5e73
- 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
- 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
- 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae