← The evidence ledger
Evidence row 63931
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://agentshelf.syntexa.ch/v1/base-token-facts
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- a248bc79a1e03910ef9c2972e7d3e5106388c3c1a7e9e8b74140d3b56d3673a3
- Leaf
- 0x08fd974e027d60f3154a79b16526dff773bc8f4f9feae4936a3047507e4b3fa4
What was observed
{
"endpoints": [
[
"x402",
"https://agentshelf.syntexa.ch/v1/base-token-facts"
]
],
"name": "agentshelf.syntexa.ch/v1/base-token-facts",
"owner_address": "0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
"scheme": "exact"
}
],
"description": "Call when an agent needs ERC-20 metadata, proxy and owner flags, a 30-day recently_deployed heuristic, and an optional holder balance for one Base token. Send token and optional holder. No LLM. Read-only. Send JSON {\"token\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\"holder\":\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\"}. Exact $0.01 USDC on Base. Try unpaid POST /v1/sandbox/base-token-facts first.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"holder": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"billed": true,
"bytecode_bytes": 2,
"bytecode_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
"decimals": 6,
"deploy_block": 10,
"deploy_timestamp": 1700000000,
"holder": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"holder_balance": "2.5",
"holder_balance_raw": "2500000",
"implementation": null,
"is_contract": true,
"name": "USD Coin",
"network": "eip155:8453",
"ok": true,
"owner": null,
"owner_renounced": null,
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"recently_deployed": false,
"symbol": "USDC",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"total_supply": "1000000",
"total_supply_raw": "1000000000000",
"upgradeable_proxy": false,
"warnings": []
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"examples": [
{
"holder": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}
],
"properties": {
"holder": {
"description": "Optional wallet whose token balance is included. Example: 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045. Omit it to skip the balance read. EIP-55 or all one case.",
"examples": [
"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
],
"type": "string"
},
"token": {
"description": "Token contract on Base mainnet. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 (Circle USDC). Returns metadata, EIP-1967 proxy flags, owner_renounced, and a 30-day recently_deployed heuristic. No LLM.",
"examples": [
"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
],
"type": "string"
}
},
"required": [
"token"
],
"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": [
{
"billed": true,
"bytecode_bytes": 2,
"bytecode_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
"decimals": 6,
"deploy_block": 10,
"deploy_timestamp": 1700000000,
"holder": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"holder_balance": "2.5",
"holder_balance_raw": "2500000",
"implementation": null,
"is_contract": true,
"name": "USD Coin",
"network": "eip155:8453",
"ok": true,
"owner": null,
"owner_renounced": null,
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"recently_deployed": false,
"symbol": "USDC",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"total_supply": "1000000",
"total_supply_raw": "1000000000000",
"upgradeable_proxy": false,
"warnings": []
}
],
"properties": {
"billed": {
"examples": [
true
],
"type": "boolean"
},
"bytecode_bytes": {
"examples": [
2
],
"minimum": 0,
"type": "integer"
},
"bytecode_hash": {
"examples": [
"0x1111111111111111111111111111111111111111111111111111111111111111"
],
"type": [
"string",
"null"
]
},
"decimals": {
"anyOf": [
{
"minimum": 0,
"type": "integer"
},
{
"type": "null"
}
],
"examples": [
6
]
},
"deploy_block": {
"anyOf": [
{
"minimum": 0,
"type": "integer"
},
{
"type": "null"
}
],
"examples": [
10
]
},
"deploy_timestamp": {
"anyOf": [
{
"minimum": 0,
"type": "integer"
},
{
"type": "null"
}
],
"examples": [
1700000000
]
},
"holder": {
"examples": [
"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
],
"type": [
"string",
"null"
]
},
"holder_balance": {
"examples": [
"2.5"
],
"type": [
"string",
"null"
]
},
"holder_balance_raw": {
"examples": [
"2500000"
],
"type": [
"string",
"null"
]
},
"implementation": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"is_contract": {
"examples": [
true
],
"type": "boolean"
},
"name": {
"examples": [
"USD Coin"
],
"type": [
"string",
"null"
]
},
"network": {
"const": "eip155:8453",
"examples": [
"eip155:8453"
],
"type": "string"
},
"ok": {
"const": true,
"examples": [
true
],
"type": "boolean"
},
"owner": {
"examples": [
null
],
"type": [
"string",
"null"
]
},
"owner_renounced": {
"examples": [
null
],
"type": [
"boolean",
"null"
]
},
"receipt_id": {
"examples": [
"rcpt_01EXAMPLE000000000000000"
],
"type": "string"
},
"recently_deployed": {
"examples": [
false
],
"type": [
"boolean",
"null"
]
},
"symbol": {
"examples": [
"USDC"
],
"type": [
"string",
"null"
]
},
"token": {
"examples": [
"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
],
"type": "string"
},
"total_supply": {
"examples": [
"1000000"
],
"type": [
"string",
"null"
]
},
"total_supply_raw": {
"examples": [
"1000000000000"
],
"type": [
"string",
"null"
]
},
"upgradeable_proxy": {
"examples": [
false
],
"type": "boolean"
},
"warnings": {
"default": [],
"examples": [
[]
],
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"ok",
"receipt_id",
"billed",
"token",
"network",
"name",
"symbol",
"decimals",
"total_supply_raw",
"total_supply",
"is_contract",
"bytecode_bytes",
"bytecode_hash",
"upgradeable_proxy",
"implementation",
"owner",
"owner_renounced",
"recently_deployed",
"deploy_block",
"deploy_timestamp",
"holder",
"holder_balance_raw",
"holder_balance"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-11T10:21:39.759Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-11T10:21:39.253Z"
},
"resource": "https://agentshelf.syntexa.ch/v1/base-token-facts",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Call when an agent needs ERC-20 metadata, proxy and owner flags, a 30-day recently_deployed heuristic, and an optional holder balance for one Base token. Send token and optional holder. No LLM. Read-only. Send JSON {\"token\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\",\"holder\":\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\"}. Exact $0.01 USDC on Base. Try unpaid POST /v1/sandbox/base-token-facts first."
}What the leaf hashes
{"body":"a248bc79a1e03910ef9c2972e7d3e5106388c3c1a7e9e8b74140d3b56d3673a3","id":63931,"kind":"listing","method":"baseline/1","observed_us":1793025455824200,"prev":null,"subject":"x402_bazaar:https://agentshelf.syntexa.ch/v1/base-token-facts","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).
- 0x08fd98ac7d336d48e1aae9b6f008d36a0442cc43006f1e4e8da5a94b3ef2d2fe
- 0xac4fe1e17c492c31b026e9cf27b48ec026ffd96953cda0fa36e7e11a962fc465
- 0x6bb66efc172e779008b51349261f574af17990d32c783d8a0da3ef1a0071407e
- 0x1e9b553631b5115c5d9b7ce976a8c41a77f50f8496ec13f3e9ab9a79e3b6b5e5
- 0x5cf6a44786ec4cfc890d1a20397ac38655eda00718dc57d995a6c29389464839
- 0x76e5661b7516d765372f88420361bb09f6f2947c9644f85125671d5e426b88f0
- 0x7ad3325c780c27cfd7b57f2d06946132760c8fe68c56e1f17c6797019b058417
- 0xa2113e5046a7d3e24f4ce65b601363a4de2a68f0e94512d93e91fa578aa8c183
- 0xcabf1cda452c46b3d3539791918df52efb9b3425952d2ab94b70213086a94d42
- 0x4b8d7ca0c4ae813a9cf284d4f688cb47a1d02fa6262df9e9bad0ce5770784284
- 0x3585060104222ad1aae3396450719e555d4d013fa2b3a7b43777a1722ca9ce22
- 0x6003e14d04cde1d24b195ac15b568dd483e04047e0f2ff64d9632a51a8f7123d
- 0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
- 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
- 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae