← The evidence ledger
Evidence row 63959
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://agentshelf.syntexa.ch/v1/eth-contract-info
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 0d248dd18d5204347588281af0e69381e703d1b8f5ae4e8d24e04b3d9430fc60
- Leaf
- 0xf7b5d25847a84b5dfec2c8de5f8aa6892720920506b4ef7c2e36c5ff4f66212b
What was observed
{
"endpoints": [
[
"x402",
"https://agentshelf.syntexa.ch/v1/eth-contract-info"
]
],
"name": "agentshelf.syntexa.ch/v1/eth-contract-info",
"owner_address": "0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
"scheme": "exact"
}
],
"description": "Call when an agent needs is_contract, bytecode size and hash, EIP-1967 and legacy OpenZeppelin proxy slots, and owner() for one Ethereum mainnet address. An EOA is is_contract false. Read-only. No spend. Send JSON {\"address\":\"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\"}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/eth-contract-info first.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"admin": null,
"beacon": null,
"billed": true,
"bytecode_bytes": 2,
"bytecode_hash": "0xabababababababababababababababababababababababababababababababab",
"implementation": null,
"is_contract": true,
"network": "eip155:1",
"ok": true,
"owner": null,
"owner_renounced": null,
"proxy_kind": null,
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"upgradeable_proxy": false,
"warnings": []
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"examples": [
{
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
}
],
"properties": {
"address": {
"description": "Account on Ethereum mainnet. Example: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 (Circle USDC). Returns is_contract, bytecode size and hash, proxy slots, and owner() when present. An EOA is is_contract false.",
"examples": [
"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
],
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"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": {
"additionalProperties": false,
"examples": [
{
"address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
"admin": null,
"beacon": null,
"billed": true,
"bytecode_bytes": 2,
"bytecode_hash": "0xabababababababababababababababababababababababababababababababab",
"implementation": null,
"is_contract": true,
"network": "eip155:1",
"ok": true,
"owner": null,
"owner_renounced": null,
"proxy_kind": null,
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"upgradeable_proxy": false,
"warnings": []
}
],
"properties": {
"address": {
"examples": [
"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48"
],
"type": "string"
},
"admin": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"beacon": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"billed": {
"examples": [
true
],
"type": "boolean"
},
"bytecode_bytes": {
"examples": [
2
],
"minimum": 0,
"type": "integer"
},
"bytecode_hash": {
"examples": [
"0xabababababababababababababababababababababababababababababababab"
],
"type": [
"string",
"null"
]
},
"implementation": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"is_contract": {
"examples": [
true
],
"type": "boolean"
},
"network": {
"const": "eip155:1",
"examples": [
"eip155:1"
],
"type": "string"
},
"ok": {
"const": true,
"examples": [
true
],
"type": "boolean"
},
"owner": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"owner_renounced": {
"examples": [
null
],
"type": [
"boolean",
"null"
]
},
"proxy_kind": {
"anyOf": [
{
"enum": [
"eip1967",
"uups",
"transparent",
"beacon",
"oz-legacy"
],
"type": "string"
},
{
"type": "null"
}
],
"examples": [
null
]
},
"receipt_id": {
"examples": [
"rcpt_01EXAMPLE000000000000000"
],
"type": "string"
},
"upgradeable_proxy": {
"examples": [
false
],
"type": "boolean"
},
"warnings": {
"default": [],
"examples": [
[]
],
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"ok",
"receipt_id",
"billed",
"address",
"network",
"is_contract",
"bytecode_bytes",
"bytecode_hash",
"upgradeable_proxy",
"proxy_kind",
"implementation",
"admin",
"beacon",
"owner",
"owner_renounced"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-17T09:30:37.932Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-17T09:30:37.738Z"
},
"resource": "https://agentshelf.syntexa.ch/v1/eth-contract-info",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Call when an agent needs is_contract, bytecode size and hash, EIP-1967 and legacy OpenZeppelin proxy slots, and owner() for one Ethereum mainnet address. An EOA is is_contract false. Read-only. No spend. Send JSON {\"address\":\"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48\"}. Exact $0.003 USDC on Base. Try unpaid POST /v1/sandbox/eth-contract-info first."
}What the leaf hashes
{"body":"0d248dd18d5204347588281af0e69381e703d1b8f5ae4e8d24e04b3d9430fc60","id":63959,"kind":"listing","method":"baseline/1","observed_us":1793025455868935,"prev":null,"subject":"x402_bazaar:https://agentshelf.syntexa.ch/v1/eth-contract-info","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).
- 0xf7b66b9f712e60a56fac8aef00cce3c853dc28ad6c1182eaae0d36aeb86c87f5
- 0xbfd63db39b6922cd9097b6af592b79647e4ff9860a0920e2129f4380e4273269
- 0x0840358fb58538e2b3fc5e42c7e9eef3d70d2b24d930ea4c842b76d0a38b9c8a
- 0xb3e8e0436e81450ce7737f0bd0cebda03ca61bbef4d4b883e5f2ae37910127f0
- 0x8cacb93daa0c762f22e1440a421f807fd93e70d7652de1a59eb7d6c487205415
- 0x57b86582e84d616701dab56c81601de3df974d8d9ac2f06808fb9365ae48e049
- 0xcae8c62d0bf53c8cb9a4adb56509a1454435bb2f77b301abce71429426c80e71
- 0x27531997833438fe58087cbd0dd603a1a068fec613cf7e0075433b0efc7069af
- 0x083ac856c9e7524f8d4826c4e61833d68bbe1eb3260e106cbaa6ff5485b44028
- 0x8912095205c0419743c69fe2e0e31af1d737e6d84891a84908cff125ff0e8e71
- 0x0836eb686ada9beddba0f76357ec59493359d2a7c51aa5c4a31d3cfe9873ea74
- 0xf7eba200f6f1012d700fcc53fc6d57dcafd1019c920b1030d42fa21d4af95d94
- 0x694eb701ea36a0e3dcde192253ab85a618738bdc1e3a6e582e6f8bf9647f7a6a
- 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
- 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae