← The evidence ledger
Evidence row 1531957
Observed , by sync.x402_bazaar/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://instructional-decision-engine-x402.vercel.app/research/freshness
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- c27d16fa481d8a0f85ecc735487ce0426af636a9c53280923e434df0ceddf931
- Leaf
- 0x8a9dc2c8bad53197b57eab6f40fd7af6d0c5854ae9c8a299e516cab2cdb676c9
What was observed
{
"endpoints": [
[
"x402",
"https://instructional-decision-engine-x402.vercel.app/research/freshness"
]
],
"name": "NovaPath",
"owner_address": "0x6b62673ccbe35ff0dc68490c7ca576334e0d607e",
"raw": {
"accepts": [
{
"amount": "10000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x6B62673cCbe35ff0dc68490c7Ca576334e0D607e",
"scheme": "exact"
}
],
"description": "Audit event age and snapshot age for up to five public records against a chosen as-of date. Distinguishes source-event recency from the observation date, flags stale snapshots and never reports an unperformed live verification.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"asOf": "2026-10-30",
"maximumAgeDays": 30,
"recordIds": [
"construction:X01474338-I1-GC|1|2026-10-16",
"fleet:9587703"
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"asOf": {
"pattern": "^20[0-9]{2}-[0-9]{2}-[0-9]{2}$",
"type": "string"
},
"maximumAgeDays": {
"maximum": 3650,
"minimum": 1,
"type": "integer"
},
"recordIds": {
"items": {
"pattern": "^[A-Za-z0-9][A-Za-z0-9:._|+-]{1,119}$",
"type": "string"
},
"maxItems": 5,
"minItems": 1,
"type": "array",
"uniqueItems": true
}
},
"required": [
"recordIds",
"asOf",
"maximumAgeDays"
],
"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"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-31T00:57:56.336Z",
"quality": {
"l30DaysTotalCalls": 1,
"l30DaysUniquePayers": 1,
"lastCalledAt": "2026-10-31T00:57:56.166Z"
},
"resource": "https://instructional-decision-engine-x402.vercel.app/research/freshness",
"serviceName": "NovaPath",
"tags": [
"research",
"public-data",
"evidence"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Audit event age and snapshot age for up to five public records against a chosen as-of date. Distinguishes source-event recency from the observation date, flags stale snapshots and never reports an unperformed live verification."
}What the leaf hashes
{"body":"c27d16fa481d8a0f85ecc735487ce0426af636a9c53280923e434df0ceddf931","id":1531957,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793473467558417,"prev":null,"subject":"x402_bazaar:https://instructional-decision-engine-x402.vercel.app/research/freshness","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (246033 rows).
- 0x8a9dc120a28adc6f0c2cb6833267911f4d70501b53f23ae92ae66b7581298f3c
- 0x5f7d31ef7acecabc6be9fc1e5ac0e99f18d04815fb8d32c634b11dbe2604d6eb
- 0x7d4fa51d3965dd95647dae38efa59489e40170a0de6e03f449e13d407a030b55
- 0xaa415015c6c9edde4cb0def542db0b684a1bae8e62ed79f5add5379bc9c0d2db
- 0x3f09dc138fd07cdd1b1441b50f60d97309e6b49caea7f3d7e94b12c14541782c
- 0x9cf476912c9e5855b51b7ed6e7fd119417eaa46df8815e0f1268791e737b4aba
- 0x1ea6ce7f3780e7d0445c5125efa79630cf0963d9a7c70228362d1f897e387405
- 0x642be430172979d6df2c9a7687ef2f13fb754bc4bfe91fc1082a1faced14b7f3
- 0xf1629509d38674cccbf466180c560f6e4131ab7173fc775a80b896ab2cfb6bef
- 0x04ff92551c4edd622ccc722e8e6c84b6ac418b5a8804dacb87698adae6b61dbf
- 0x2e23c2e6de655690363b03f4595fed0e85d52749a3f7d7b47342f3d2e172c262
- 0x720a17bc892e029f7a7f7d97ec657500ae4d19e81f252ea03dcb481ffe6284b0
- 0xf78dcc497b1eed1570dd01a177c5d9c85de403719e57871edde8db0cd63ccfa3
- 0x53cec9a253425d115917fd16acdf0d80665ab0944593859ce1e8b491b9693e2f
- 0x91bc1c2b25f148b9b56bf377304983d0f2e68d0d8c3f65c9aaa8adb083331d11
- 0x8605635b6c6bd33c6547585212170cc076018c2dd5f81f35a5ac4ade689fbb12
- 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
- 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57
- Day root
- 0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab
- Chained
- 0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980
- Published
- On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0