← The evidence ledger
Evidence row 3763935
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://aptu.dev/v1/x402-preflight
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 3614e8fccd56c25f11d435b01bcbd9c6887385dcdb8a75799de446ac2aa189e8
- Leaf
- 0xca920149bf94ad31890fe1cb0f00dd604a6ec2789cc0936d293478503fa4042b
What was observed
{
"endpoints": [
[
"x402",
"https://aptu.dev/v1/x402-preflight"
]
],
"name": "aptu.dev",
"owner_address": "0x169313d28075a6ddb70e7e5190a1eddc0d105671",
"raw": {
"accepts": [
{
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0x169313d28075a6dDB70E7e5190a1eDdc0d105671",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
},
"maxTimeoutSeconds": 60,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "364mUWTYwsteDSKLjHBrV8y77rAdqwmnWLB8sJBkBD1E",
"scheme": "exact"
}
],
"description": "Seller-side x402 protocol conformance pre-flight check for a deployed resource URL (schema validation, mechanism reachability, facilitator cross-check, advisory scar-tissue findings) with a graded 0-100 report and per-failure remedies.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"url": "https://seller.example.com/v1/paid"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"findings": [
{
"check": "manifest_dual_timestamp",
"detail": "...",
"hint": "...",
"ms": 12,
"pass": false,
"severity": "warn",
"specRef": null
}
],
"grade": "A",
"probedResource": "https://seller.example.com/v1/paid",
"rubricVersion": "aptu-preflight-1",
"score": 96,
"summary": {
"fails": 0,
"warns": 1
},
"url": "https://seller.example.com/v1/paid"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"url": {
"maxLength": 2048,
"pattern": "^https://[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?(\\.[A-Za-z0-9]([A-Za-z0-9-]{0,61}[A-Za-z0-9])?)+.*$",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"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"
}
},
"builder-code": {
"info": {
"a": "bc_ognzk2zl"
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"properties": {
"a": {
"description": "App builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"s": {
"description": "Service builder codes",
"items": {
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
},
"maxItems": 11,
"type": "array"
},
"w": {
"description": "Wallet builder code",
"pattern": "^[a-z0-9_]{1,32}$",
"type": "string"
}
},
"type": "object"
}
}
},
"iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793569800/bazaar-icons/4d5697f26cf1508d.png",
"lastUpdated": "2026-11-05T17:44:13.379Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-11-05T17:44:12.742Z"
},
"resource": "https://aptu.dev/v1/x402-preflight",
"serviceName": "aptu.dev",
"tags": [
"x402",
"preflight",
"conformance",
"audit"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Seller-side x402 protocol conformance pre-flight check for a deployed resource URL (schema validation, mechanism reachability, facilitator cross-check, advisory scar-tissue findings) with a graded 0-100 report and per-failure remedies."
}What the leaf hashes
{"body":"3614e8fccd56c25f11d435b01bcbd9c6887385dcdb8a75799de446ac2aa189e8","id":3763935,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996564128514,"prev":null,"subject":"x402_bazaar:https://aptu.dev/v1/x402-preflight","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (303443 rows).
- 0xca9209698ac405febb71a0e426014fc69822221f7495d146082750b84ea95004
- 0xfa242ea87f701014b6bee2ce0544352dce30b2c621946dffd6547cef004d2d30
- 0x39fd06bad3694e24853b8618e46a1a41bf6043cdb1443bb0d0936300b117fb8a
- 0x2714533abd91caa7a3fb00a962475fc00a25ffd099ad52b3ea54308f6e877e27
- 0x11b776458cd9ea84abaf6eb08842540690503feaa93f2a345560c7dad84fa942
- 0x1b7167178adc2edbf3f55980d7e46e1861e07f6890b6b1783a2e59bc026eb9e5
- 0xa542998351e9791f37d6a289bcb3ee79c7a7bd44c4e3dfb782aa1bda84b4f08c
- 0xeae703849d217b042668eac7ba6efb75d557d9d957e75026eb96eba5f6f15c6b
- 0xc6f7a18af0ae88caad33e102b3333a3cc13dd1c296769aa5389ac827b1c23353
- 0xd2fb0942e14510f9aeafa854033461b0cfc880882a2f3e28918af0be7b017bc7
- 0xfe6980c3788dab6767f8266d22b6a23386a33657b0725881e19a2b938483d86a
- 0x7af17ac934be77957763946f6c44f48570d453e0e70fce2a888fa7023380120f
- 0x8adc76561a69014f5efbfe19d021ea0664d3fed8933c7f2331ca9bc4a05e7625
- 0xb709868b438fc6927f965175a591086d7ad72d9b199a5a29849eeb222abb850e
- 0xa1718cabb225bcfa7e8d30571095a3947ec7e2f279fac8d2d2530d955a7def96
- 0xd47209ac9b2ac71257b5162800ce4482f8cf7ea04f074033847ad335ca758d32
- 0xf19d501fdbc28e10c3244253daf0c37c4752659eae14a7cba585a18c7df9ce0d
- 0xd422a75f6c3780ed53eca52b50bf40b8f17dc14cffb804142e44fc9f2672029d
- 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948
- Day root
- 0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f
- Chained
- 0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3
- Published
- On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1