← The evidence ledger
Evidence row 125069
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-echo-service.onrender.com/chain/erc20-balance
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7c670c12b8c102765fe212fc6015a7745e54a3353afa42045f7c9c0d9fe93392
- Leaf
- 0x7460a8313cf3c2028cebdee24d39ef9b1d91469e1faa0bcfeb3cd25a7c708eec
What was observed
{
"endpoints": [
[
"x402",
"https://x402-echo-service.onrender.com/chain/erc20-balance"
]
],
"name": "ERC-20 Balance",
"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 an ERC-20 token balance on Base. POST {\"address\":\"0x...\",\"token\":\"0x...\"} and receive the raw balance, the token decimals and the human-readable amount. Defaults to USDC when token is omitted. Live chain state, no indexer lag.",
"extensions": {
"bazaar": {
"category": "Infra",
"coverImage": "https://x402-echo-service.onrender.com/icon.png",
"info": {
"input": {
"body": {
"address": "0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"address": "0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE",
"amount": "4.111",
"decimals": 6,
"raw": "4111000",
"token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"address": {
"description": "Account to read.",
"type": "string"
},
"token": {
"description": "ERC-20 contract. Defaults to USDC on Base.",
"type": "string"
}
},
"required": [
"address"
],
"type": "object"
},
"bodyType": {
"enum": [
"json"
]
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http"
}
},
"required": [
"type",
"bodyType",
"body",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"address": {
"type": "string"
},
"amount": {
"type": "string"
},
"decimals": {
"type": "integer"
},
"raw": {
"type": "string"
},
"token": {
"type": "string"
}
},
"required": [
"address",
"token",
"raw",
"decimals",
"amount"
],
"type": "object"
},
"type": {
"const": "json"
}
},
"required": [
"type",
"example"
],
"type": "object"
}
},
"required": [
"input",
"output"
],
"type": "object"
},
"serviceName": "ERC-20 Balance",
"summary": "Token balance for any address on Base, decimals applied.",
"tags": [
"erc20",
"balance",
"base",
"onchain",
"token"
]
}
},
"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": "2026-10-09T13:29:04.146Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-09T13:29:03.926Z"
},
"resource": "https://x402-echo-service.onrender.com/chain/erc20-balance",
"serviceName": "ERC-20 Balance",
"tags": [
"erc20",
"balance",
"base",
"onchain",
"token"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Read an ERC-20 token balance on Base. POST {\"address\":\"0x...\",\"token\":\"0x...\"} and receive the raw balance, the token decimals and the human-readable amount. Defaults to USDC when token is omitted. Live chain state, no indexer lag."
}What the leaf hashes
{"body":"7c670c12b8c102765fe212fc6015a7745e54a3353afa42045f7c9c0d9fe93392","id":125069,"kind":"listing","method":"baseline/1","observed_us":1793025625764681,"prev":null,"subject":"x402_bazaar:https://x402-echo-service.onrender.com/chain/erc20-balance","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).
- 0x7460be25f07d38d73cc5dcbec39bc39fadaf3e66b6e7fb9559c46d6bcea1e849
- 0x0a648b09cf2e2e91938b14bf047872eedde9417891fca939865ed9b11e3140cb
- 0x2181d4d2fd21e1f127d4cc53d0de490a652c7b562a65c09122f219399fb36027
- 0xd91f6d80d1e672ae0788c3c85cc77cef84b42e45ccd4c5350db1a33b84589e01
- 0x47be852017ffaacc41b83e76ff842c2e8c854f00a0508824b467a745846b28fd
- 0xfd72a4d950e494cb8d1f74f262799c42fe826f9fd58faf9d2a2035d30f0fbd4b
- 0x11998474f15faad790472c3dde8dc15b0d5310aec0f15b82ae2bbb538a4513b9
- 0xbedcd42ca7c3d14a88c7c1864b5bfcf816c96f4dceb39130b856a97e62565159
- 0xd0bbcf02f0483daaff2680f7dc63577b211f9daed61d6ffaf73cadb654bf6124
- 0xeeb27e00b2f1b77815fcef94bdfe05e33ce9324a8f8948c0770868e4d010c7b9
- 0x9adfaac1e332051e6999b9b702c6d539c2d639f94fd57735f2ddd441a4b5230c
- 0x3f193b47c78cf4e7b9e4988cd716854b0e1011e5fcbca161f5a885f1aa02857d
- 0x06064dc1eb2363bec8c2a752e0a28aafc4bf0cb21d1b1b755821c1575bb77a96
- 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
- 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
- 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
- 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae