← The evidence ledger
Evidence row 125528
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://x402-trust.com/v1/x402-history
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 068d076d9f29f18f6e8e0f3acc8b562c36e9883a30efe26acd39f34381e6e834
- Leaf
- 0xd757a802453bd2e591250cd1894b1590950aee2ff3407d2008083ce07087fcc2
What was observed
{
"endpoints": [
[
"x402",
"https://x402-trust.com/v1/x402-history"
]
],
"name": "x402 Trust History",
"owner_address": "0xbbecbe90f28632a9d52ed67b33b43767b8c89285",
"raw": {
"accepts": [
{
"amount": "20000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 120,
"network": "eip155:8453",
"outputSchema": {
"input": {
"bodyFields": {
"days": {
"description": "Lookback window in days (1-90, default 30).",
"required": false,
"type": "number"
},
"resource": {
"description": "Full x402 resource URL exactly as listed in discovery (e.g. https://api.example.com/v1/thing).",
"required": true,
"type": "string"
}
},
"bodyType": "json",
"headerFields": {
"PAYMENT-SIGNATURE": {
"description": "Base64-encoded JSON PaymentPayload; auto-filled by x402 clients.",
"required": true,
"type": "string"
}
},
"method": "POST",
"type": "http"
},
"output": {
"probes": "array",
"resource": "string",
"snapshots": "array"
}
},
"payTo": "0xbBECBE90F28632a9d52ed67b33b43767b8c89285",
"scheme": "exact"
}
],
"description": "Raw observation history for one endpoint over 1-90 days: listing and delisting events, price and payTo changes, and probe results with status and latency. Excluded probes (rate limits, unresolved URL templates, our own resolver outages) never count as downtime. probeSummary aggregates the window.",
"extensions": {
"bazaar": {
"category": "data",
"discoverable": true,
"info": {
"input": {
"body": {
"days": 30,
"resource": "https://api.example.com/v1/thing"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"dataCompleteSince": 1782826208450,
"days": 30,
"delisted": false,
"firstSeenTs": 1782826208450,
"probeSummary": {
"byStatus": {
"dns_error": 1,
"success": 1
},
"excluded": 1,
"failed": 1,
"failureDays": [
{
"byStatus": {
"dns_error": 1
},
"day": "2026-06-30",
"excluded": 1,
"failed": 1
}
],
"longestFailStreak": 0,
"ok": 1,
"total": 2
},
"probes": [
{
"amount": "200",
"error": null,
"excluded": false,
"httpStatus": 402,
"latencyMs": 312,
"ok": true,
"status": "success",
"ts": 1782826208450
},
{
"amount": null,
"error": "DNS resolution failed for api.example.com: getaddrinfo EAI_AGAIN api.example.com",
"excluded": true,
"httpStatus": null,
"latencyMs": 12,
"ok": false,
"status": "dns_error",
"ts": 1782829808450
}
],
"resource": "https://api.example.com/v1/thing",
"snapshots": [
{
"amount": "200",
"kind": "price",
"payTo": "0xa2477E16dCB42E2AD80f03FE97D7F1a1646cd1c0",
"ts": 1782826208450
}
]
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"days": {
"type": "integer"
},
"resource": {
"type": "string"
}
},
"required": [
"resource",
"days"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
]
},
"method": {
"enum": [
"GET",
"POST",
"PUT",
"PATCH",
"DELETE",
"HEAD"
]
},
"type": {
"const": "http"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"dataCompleteSince": {
"type": "integer"
},
"days": {
"type": "integer"
},
"delisted": {
"type": "boolean"
},
"firstSeenTs": {
"type": "integer"
},
"probeSummary": {
"properties": {
"byStatus": {
"properties": {
"dns_error": {
"type": "integer"
},
"success": {
"type": "integer"
}
},
"required": [
"success",
"dns_error"
],
"type": "object"
},
"excluded": {
"type": "integer"
},
"failed": {
"type": "integer"
},
"failureDays": {
"items": {
"properties": {
"byStatus": {
"properties": {
"dns_error": {
"type": "integer"
}
},
"required": [
"dns_error"
],
"type": "object"
},
"day": {
"type": "string"
},
"excluded": {
"type": "integer"
},
"failed": {
"type": "integer"
}
},
"required": [
"day",
"failed",
"excluded",
"byStatus"
],
"type": "object"
},
"type": "array"
},
"longestFailStreak": {
"type": "integer"
},
"ok": {
"type": "integer"
},
"total": {
"type": "integer"
}
},
"required": [
"total",
"ok",
"failed",
"excluded",
"byStatus",
"longestFailStreak",
"failureDays"
],
"type": "object"
},
"probes": {
"items": {
"properties": {
"amount": {
"type": [
"null",
"string"
]
},
"error": {
"type": [
"null",
"string"
]
},
"excluded": {
"type": "boolean"
},
"httpStatus": {
"type": [
"integer",
"null"
]
},
"latencyMs": {
"type": "integer"
},
"ok": {
"type": "boolean"
},
"status": {
"type": "string"
},
"ts": {
"type": "integer"
}
},
"required": [
"ts",
"ok",
"latencyMs",
"amount",
"status",
"excluded",
"httpStatus",
"error"
],
"type": "object"
},
"type": "array"
},
"resource": {
"type": "string"
},
"snapshots": {
"items": {
"properties": {
"amount": {
"type": "string"
},
"kind": {
"type": "string"
},
"payTo": {
"type": "string"
},
"ts": {
"type": "integer"
}
},
"required": [
"ts",
"kind",
"amount",
"payTo"
],
"type": "object"
},
"type": "array"
}
},
"required": [
"resource",
"days",
"firstSeenTs",
"delisted",
"dataCompleteSince",
"snapshots",
"probes",
"probeSummary"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
},
"tags": [
"x402",
"history",
"monitoring",
"timeseries"
]
}
},
"lastUpdated": "2026-10-22T07:01:12.003Z",
"quality": {
"l30DaysTotalCalls": 3,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-22T07:01:11.57Z"
},
"resource": "https://x402-trust.com/v1/x402-history",
"serviceName": "x402 Trust History",
"tags": [
"x402",
"trust",
"reliability",
"monitoring",
"uptime"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Raw observation history for one endpoint over 1-90 days: listing and delisting events, price and payTo changes, and probe results with status and latency. Excluded probes (rate limits, unresolved URL templates, our own resolver outages) never count as downtime. probeSummary aggregates the window."
}What the leaf hashes
{"body":"068d076d9f29f18f6e8e0f3acc8b562c36e9883a30efe26acd39f34381e6e834","id":125528,"kind":"listing","method":"baseline/1","observed_us":1793025626431246,"prev":null,"subject":"x402_bazaar:https://x402-trust.com/v1/x402-history","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).
- 0xd757ca0d513576634ed6e53e1f990ab30c51229aac76874a319701dc872a5ab7
- 0x3e090c8638d3178965a58eff218af2921ae0c105b618d381d5f3e4cc55a6916f
- 0xc805dea24c7ed98141bf38dd86032c8655e0432fd6bbd01de023e840057ab764
- 0xa099e475562209ff3c66108b1d50f9628c9ed7b2985968c8a481558b7de8a490
- 0x260d818fff54b344f09aeca99a85fa8617e883018b75db2b52388f7b29f96e6c
- 0xc263e9b9cb74e11ef911037d7d75b45987fea3def04dc3b6b064642b7b680f58
- 0xf96df4b353a1792611e8689b2a18052c897d4cf7350d46d25226dd917ef20a95
- 0x6ca6a66e13750baafafbaa0b6ce80ba9a3d5167b760bf86008b59ddec5b57c53
- 0x75beaad71cc1904f1f354f3e6f4ca39a7967119a36f829273a3f6eb5282b19e9
- 0x4c6a4d003a4c8e394c82c8f16a5c6669cfbbac391218d8be2c13f5d5aa94e7a7
- 0x681ef979e2591e4ee00c2230855c75508aa926b1abc5e4e5e6a9348a15261045
- 0x39d84ffb833c94bfff15760ea7da987f5303e407884de386d5a33b2328c7d785
- 0x3199db04c2c73c3483386a86bf503eafde5af103465608156e2e5f42e72a6fbe
- 0x6b927d53caa5125cdba9255612d524976c691f8672796c3f0885ba2c5b3af1ad
- 0x6dc40f983a3840a0ad927a9ca17f4ff1e3b649a6c735e2a09b140db7c2caf13b
- 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
- 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
- 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae