← The evidence ledger
Evidence row 125073
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-echo-service.onrender.com/chain/token
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 95b72f84e1c7e926e69895fcfca9d13ef2fc1d41a161595ebf056af5de52ded7
- Leaf
- 0x1851b4ed5d79f04f3562598120ec6ced8cfcd3a204e05f317e4d45be66ed5cb2
What was observed
{
"endpoints": [
[
"x402",
"https://x402-echo-service.onrender.com/chain/token"
]
],
"name": "Token Metadata",
"owner_address": "0x9cc774a8ed49d89cba1a288f4a050b8f7fba77ee",
"raw": {
"accepts": [
{
"amount": "1000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE",
"scheme": "exact"
}
],
"description": "Read ERC-20 metadata on Base. POST {\"token\":\"0x...\"} and receive the name, symbol, decimals and total supply, with the supply given both raw and decimal-adjusted. Reports a clear error when the address is not a token contract.",
"extensions": {
"bazaar": {
"category": "Infra",
"coverImage": "https://x402-echo-service.onrender.com/icon.png",
"info": {
"input": {
"body": {
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"decimals": 6,
"name": "USD Coin",
"symbol": "USDC",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"totalSupply": "4000000000.0",
"totalSupplyRaw": "4000000000000000"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"token": {
"type": "string"
}
},
"required": [
"token"
],
"type": "object"
},
"bodyType": {
"enum": [
"json"
]
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http"
}
},
"required": [
"type",
"bodyType",
"body",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"decimals": {
"type": "integer"
},
"name": {
"type": "string"
},
"symbol": {
"type": "string"
},
"token": {
"type": "string"
},
"totalSupply": {
"type": "string"
},
"totalSupplyRaw": {
"type": "string"
}
},
"required": [
"token",
"name",
"symbol",
"decimals",
"totalSupply"
],
"type": "object"
},
"type": {
"const": "json"
}
},
"required": [
"type",
"example"
],
"type": "object"
}
},
"required": [
"input",
"output"
],
"type": "object"
},
"serviceName": "Token Metadata",
"summary": "Name, symbol, decimals and total supply for an ERC-20 on Base.",
"tags": [
"token",
"erc20",
"metadata",
"base",
"supply"
]
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1787754105/bazaar-icons/222b7a4262b684da.png",
"lastUpdated": "2026-10-09T12:44:20.799Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-09T12:44:20.647Z"
},
"resource": "https://x402-echo-service.onrender.com/chain/token",
"serviceName": "Token Metadata",
"tags": [
"token",
"erc20",
"metadata",
"base",
"supply"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Read ERC-20 metadata on Base. POST {\"token\":\"0x...\"} and receive the name, symbol, decimals and total supply, with the supply given both raw and decimal-adjusted. Reports a clear error when the address is not a token contract."
}What the leaf hashes
{"body":"95b72f84e1c7e926e69895fcfca9d13ef2fc1d41a161595ebf056af5de52ded7","id":125073,"kind":"listing","method":"baseline/1","observed_us":1793025625768268,"prev":null,"subject":"x402_bazaar:https://x402-echo-service.onrender.com/chain/token","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).
- 0x185172630f9eb6a0ce1358c8dec8797ae44fa2f571c2c263aa152dc177985436
- 0xf7b41d8224b4beae64edcf7cce34b7b919a2ccf1395b02e27c93971b54d03927
- 0x13fa651a713d592593b84d8f5aba132fddffe7874d97dcf3aae87b79431973fb
- 0x6bb9e94c1e99812f401f84eb0bb9b171ca61daf9d17863ee17cbc7515c54aa58
- 0x5cda5bf09b8cdf740aead3581f6e4c9dbc739fe794b67b8c1e0e4142d48b8e54
- 0x458212f8a1915166661558b446626fb17081ea0d19e63176df9bcc320fa6cd84
- 0x0f0ca76275c10f63d96cde880cbe21b2b648490a0993a6e2f618eb18a113f7cb
- 0x4c89538cd3e8cfeaf4dad7d22f8aa469b3fc9dd1f32ad87602b8f12570fa9195
- 0x80aa64ce2bf6e31f5f88981fac2430f8954888b7e21f1f1f5064efe964f540b0
- 0x4b181a898f514ff9cb15440f5fc1c2a2f938b6e95da8f6b6ddad9ea761c0d44a
- 0x04d98d8716f171bd2264c6c49606521f410107287c5094c713f72cdf2fe1e1ed
- 0x15eab8feed5b3f08165d63b9f1aed508c0624966a05349e051f86f0c188707b5
- 0x32f46c5f73ecbfd4f770f7f760a79bee2afed4b3e7572fa882b3e7dce8df4356
- 0x770e4376196188c7fc9ec40f8e218dc0d1cb92bba5fe0425a0edce27ca9a997f
- 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
- 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
- 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae