← The evidence ledger
Evidence row 187
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.onesource.io/api/chain/total-supply
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 3206b69b995a70995dc578a7faec7914b2581a10f370a8aa0d8fbdbfce5c23e8
- Leaf
- 0xa81bb1f296adb4276fe9aae2a95a74c065a74a7855e787d8ae0114f069287f17
What was observed
{
"endpoints": [
[
"x402",
"https://api.onesource.io/api/chain/total-supply"
]
],
"name": "api.onesource.io/api/chain/total-supply",
"owner_address": "0x52e29e0d2aa49bfbfc548c0a9f2196f4aa51f3ea",
"raw": {
"accepts": [
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"credentialTypes": [
"authorization"
],
"name": "USD Coin",
"version": "2"
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 3600,
"network": "eip155:8453",
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"scheme": "exact"
},
{
"amount": "3000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"currency": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"receiverAuthorizer": "0x11dF9F6280632aB8F12926b3f569E493EaEcf81b",
"version": "2",
"withdrawDelay": 86400
},
"maxAmountRequired": "3000",
"maxTimeoutSeconds": 3600,
"network": "eip155:8453",
"payTo": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"recipient": "0x52E29e0d2Aa49bfBfC548C0A9F2196F4aa51f3ea",
"scheme": "batch-settlement"
}
],
"description": "Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)",
"extensions": {
"bazaar": {
"info": {
"input": {
"method": "GET",
"queryParams": {
"contract": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"network": "ethereum"
},
"type": "http"
},
"output": {
"example": {
"data": {
"contract_address": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"decimals": 6,
"is_erc721": false,
"name": "Tether USD",
"symbol": "USDT",
"total_supply": "39283948340000000"
},
"meta": {
"cost_usdc": "0.001",
"endpoint": "/api/chain/total-supply",
"payment_chain": "base",
"payment_token": "USDC",
"request_id": "00000000abcdef01"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"contract": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"network": {
"default": "ethereum",
"enum": [
"ethereum",
"sepolia",
"robinhood"
],
"type": "string"
}
},
"required": [
"contract"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"description": "Endpoint-specific response payload",
"properties": {
"contract_address": {
"type": "string"
},
"decimals": {
"type": "integer"
},
"is_erc721": {
"type": "boolean"
},
"name": {
"type": "string"
},
"symbol": {
"type": "string"
},
"total_supply": {
"type": "string"
}
},
"type": "object"
},
"error": {
"properties": {
"code": {
"type": "integer"
},
"message": {
"type": "string"
}
},
"type": [
"object",
"null"
]
},
"meta": {
"properties": {
"cost_usdc": {
"type": "string"
},
"endpoint": {
"type": "string"
},
"payment_chain": {
"type": "string"
},
"payment_token": {
"type": "string"
},
"request_id": {
"type": "string"
}
},
"required": [
"endpoint",
"request_id"
],
"type": "object"
}
},
"required": [
"data",
"meta"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-26T14:20:59.462Z",
"quality": {
"l30DaysTotalCalls": 262,
"l30DaysUniquePayers": 262,
"lastCalledAt": "2026-10-26T10:12:21.686Z"
},
"resource": "https://api.onesource.io/api/chain/total-supply",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Total supply of an ERC20 or ERC721 token contract via totalSupply (eth_call)"
}What the leaf hashes
{"body":"3206b69b995a70995dc578a7faec7914b2581a10f370a8aa0d8fbdbfce5c23e8","id":187,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025220254094,"prev":null,"subject":"x402_bazaar:https://api.onesource.io/api/chain/total-supply","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.