← The evidence ledger
Evidence row 69068
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.spendpreflight.com/v1/preflight
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 98ed74ffe4ec439b01a7a2218bf672d3b0300364d7849379dd7f433522bffc4d
- Leaf
- 0x68cf64b40a410a2f2d6f3933c2ab2b706059847fc1be8011a207b9b5edc8a5c3
What was observed
{
"endpoints": [
[
"x402",
"https://api.spendpreflight.com/v1/preflight"
]
],
"name": "SpendPreflight",
"owner_address": "0xbf4164e07552e4c1b1b1597e72c7acaa3f0a1c58",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0xBf4164e07552e4c1b1B1597E72C7acAA3F0a1c58",
"scheme": "exact"
}
],
"description": "Spend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, hold threshold, daily cap, allowlists, new-domain days, endpoint category price multiple, liveness and payTo changes). Returns allow|hold|block with reasons, the cheapest acceptable payment option, and a receipt id. Read-only: never signs, settles, or holds funds. Use before every payment.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"challenge": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"network": "eip155:8453",
"payTo": "0x0000000000000000000000000000000000000001",
"scheme": "exact"
}
],
"resource": {
"url": "https://api.example.com/data"
},
"x402Version": 2
},
"context": {
"spent_today_usd": 0
},
"rules": {
"hold_above_usd": 0.25,
"max_per_payment_usd": 1,
"new_domain_days": 30
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"decision": "allow",
"reasons": [
"allow: all rules passed"
],
"receipt": {
"decision": "allow",
"id": "…",
"input_sha256": "…",
"jws": "EdDSA compact JWS (illustrative)",
"ts": "…"
}
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {}
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
},
"offer-receipt": {
"info": {
"offers": [
{
"acceptIndex": 0,
"format": "jws",
"signature": "eyJhbGciOiJFZERTQSIsImtpZCI6ImRpZDp3ZWI6YXBpLnNwZW5kcHJlZmxpZ2h0LmNvbSNyZWNlaXB0LUxhcVVvUFE1YzZCbjZwWExIWFBKS2otRE1GWjM0d1Ytd3pLQ3Nya0g0R00ifQ.eyJhbW91bnQiOiIyMDAwMCIsImFzc2V0IjoiMHg4MzM1ODlmQ0Q2ZURiNkUwOGY0YzdDMzJENGY3MWI1NGJkQTAyOTEzIiwibmV0d29yayI6ImVpcDE1NTo4NDUzIiwicGF5VG8iOiIweEJmNDE2NGUwNzU1MmU0YzFiMUIxNTk3RTcyQzdhY0FBM0YwYTFjNTgiLCJyZXNvdXJjZVVybCI6Imh0dHBzOi8vYXBpLnNwZW5kcHJlZmxpZ2h0LmNvbS92MS9wcmVmbGlnaHQiLCJzY2hlbWUiOiJleGFjdCIsInZhbGlkVW50aWwiOjE3OTI4MDY4MTksInZlcnNpb24iOjF9.6LZb3b-G7rzQS0Eaul5VYD1OmeaNBrBtXgIlqzTQy45kyT0rriS8zTdYpEu0H113LI0RDqFvlS5KAB_1CCTqAw"
}
]
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"offers": {
"items": {
"properties": {
"acceptIndex": {
"type": "integer"
},
"format": {
"type": "string"
},
"payload": {
"properties": {
"amount": {
"type": "string"
},
"asset": {
"type": "string"
},
"network": {
"type": "string"
},
"payTo": {
"type": "string"
},
"resourceUrl": {
"type": "string"
},
"scheme": {
"type": "string"
},
"validUntil": {
"type": "integer"
},
"version": {
"type": "integer"
}
},
"required": [
"version",
"resourceUrl",
"scheme",
"network",
"asset",
"payTo",
"amount"
],
"type": "object"
},
"signature": {
"type": "string"
}
},
"required": [
"format",
"signature"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"offers"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-24T01:52:39.76Z",
"quality": {
"l30DaysTotalCalls": 4,
"l30DaysUniquePayers": 4,
"lastCalledAt": "2026-10-24T01:52:39.331Z"
},
"resource": "https://api.spendpreflight.com/v1/preflight",
"serviceName": "SpendPreflight",
"tags": [
"agent-payments",
"x402",
"spend-control",
"preflight",
"budget"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Spend preflight for AI agents. Send the x402 PaymentRequired body (v1 or v2) you received, or a cart, plus optional rules (per-payment max, hold threshold, daily cap, allowlists, new-domain days, endpoint category price multiple, liveness and payTo changes). Returns allow|hold|block with reasons, the cheapest acceptable payment option, and a receipt id. Read-only: never signs, settles, or holds funds. Use before every payment."
}What the leaf hashes
{"body":"98ed74ffe4ec439b01a7a2218bf672d3b0300364d7849379dd7f433522bffc4d","id":69068,"kind":"listing","method":"baseline/1","observed_us":1793025477668049,"prev":null,"subject":"x402_bazaar:https://api.spendpreflight.com/v1/preflight","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).
- 0x68cf57c22295df2013ab21941ba52b1fa84babfc3a2f8134e523dfd93fb5be74
- 0x0954022274bdb7e0dbdf1a1be0ee0c128ebede24e0511d191eee095571f7aa87
- 0x01e54130121f54499026da3491aab888c31921167b701215c068d1aa915af7a8
- 0xe2543b67ca12d9327624116855c1bc502ab01b7d0ce4c3a83e5fe097a94af86d
- 0xfa337f3b21019ead0cfd1290b17837d3b4a6ba6e22a083c22d091ec852c2200d
- 0x5d74ff41738a527d504e8fa64f28fef85d54d3923f8cb235b3e6736e02f4351f
- 0x488956afc07b02cd16b367135be8e8552e28caa8d31f3dd20c5632383c02bdef
- 0xc51d2283793d4dd39b07e546d4a0cb10d15edcbde42c1d75fe4c4f0d0f1550b7
- 0x0ef50c198249020747276d8990f1136738069e3d94a50f42f5557e2f30f85231
- 0x13e4c71dea6ead16b673621a000980228fb6632849515de881753d7ecc85106a
- 0x413b0c9464d3b38d47c32aba246ca98fb26aca16664bc872d8c725efdcf42145
- 0x9483a0a7a066ffc2fb890c8f34dbc91bf373e546e4a3800b76064288b3cc4875
- 0x5f350d70c252ff1169c0210fd45fce1b0ab8d7316f048741a9e90a6c8cb65dcf
- 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
- 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
- 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
- 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae