← The evidence ledger
Evidence row 125277
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-gateway-production-1f21.up.railway.app/agent/pretrade
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 6ea8ae7be5e40469ae29c3f8df2828efa752a6e12940c5937ecbe9daa83be582
- Leaf
- 0xf3b3ec8b9ab274ebf089408b3fc9b414e00061b327e39d8f4e0204e2e8bbe341
What was observed
{
"endpoints": [
[
"x402",
"https://x402-gateway-production-1f21.up.railway.app/agent/pretrade"
]
],
"name": "x402-gateway-production-1f21.up.railway.app/agent/pretrade",
"owner_address": "0xf7eb4b12d673df433d76b2dbd9ca41db3fe1836e",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 90,
"network": "eip155:8453",
"payTo": "0xF7Eb4b12D673dF433d76B2DBD9CA41Db3fE1836E",
"scheme": "exact"
},
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"minDeposit": "100000",
"name": "USD Coin",
"receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
"version": "2",
"withdrawDelay": 900
},
"maxTimeoutSeconds": 90,
"network": "eip155:8453",
"payTo": "0xF7Eb4b12D673dF433d76B2DBD9CA41Db3fE1836E",
"scheme": "batch-settlement"
}
],
"description": "Pre-trade context bundle for autonomous crypto agents: wallet balance, allowance, gas, realtime price, 24h statistics and best bid/ask. Call immediately before every automated trade, swap or payment and refresh again before the next execution. Data only.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"address": "0x0000000000000000000000000000000000000000",
"network": "base",
"product_id": "BTC-USD",
"spender": "0x0000000000000000000000000000000000000000",
"token_contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"status": "ready"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"address": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"balance_tokens": {
"items": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"maxItems": 20,
"type": "array"
},
"network": {
"default": "base",
"enum": [
"base",
"ethereum"
],
"type": "string"
},
"product_id": {
"pattern": "^[A-Za-z0-9]{2,15}-[A-Za-z0-9]{2,15}$",
"type": "string"
},
"spender": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"token_contract": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
}
},
"required": [
"address",
"spender",
"token_contract",
"product_id"
],
"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": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-19T11:32:15.745Z",
"quality": {
"l30DaysTotalCalls": 5,
"l30DaysUniquePayers": 5,
"lastCalledAt": "2026-10-19T11:32:15.536Z"
},
"resource": "https://x402-gateway-production-1f21.up.railway.app/agent/pretrade",
"tags": [
"pretrade",
"pre-trade check",
"wallet balance",
"erc20 allowance",
"gas price"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Pre-trade context bundle for autonomous crypto agents: wallet balance, allowance, gas, realtime price, 24h statistics and best bid/ask. Call immediately before every automated trade, swap or payment and refresh again before the next execution. Data only."
}What the leaf hashes
{"body":"6ea8ae7be5e40469ae29c3f8df2828efa752a6e12940c5937ecbe9daa83be582","id":125277,"kind":"listing","method":"baseline/1","observed_us":1793025626021475,"prev":null,"subject":"x402_bazaar:https://x402-gateway-production-1f21.up.railway.app/agent/pretrade","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).
- 0xf3b4043bc954a89e4f8c6d7f6687e5c439e2f66cb4ec791d8fa72fdf4903ffcb
- 0x5ad8b0b0e1020b27fffcd4fb50c04db7e8f5cfb97b96e8b3294b8861ef6960a6
- 0xc77a78655d4dfad69ba9cabe568e3eb6fdd8284e6343b0238d6b26438e6f4028
- 0xc4f34bc33ec3755cb1b4ecda0305c180401dc482cd04d39c381f8d3556a7451c
- 0x9f9fe58c5d85c42cb002f692d889b548e683f0550352476ec7f25f417dd6b773
- 0x67fea756706477ad05f782ec1c6a9e23db31ba2c36d15b78147ec5d73bb62873
- 0xcdc2b55caef81778224e09f665be51153fff7f8455c6160139dba129db6c4495
- 0xa6767a1dfe1886cccc588d9c60ac8828f4f18e4bb4631db4beb2ce432c78b397
- 0x41b411a30c4746c5877c1008986a88d4d1d2fe17dde7eaaeb443ebcd9fe1edba
- 0x67f025e785d862e818e533cc91b12de424ba2fa38e9f06f58b81ae8c82da1146
- 0xc50899a255d8f2b1b1fc55129b98f94521e73c5252d7c947abcfcdde2955260c
- 0x3e439c99553dde4ddc1a9189bc043fa92a4b6b41e39e7e6b21c10148f9558a78
- 0xa26f0437cba4d7d64f1cf98bf4f490e1ebb6f66a5e2331537b7ba8b3061084e0
- 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
- 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
- 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
- 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae