← The evidence ledger
Evidence row 67352
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://api.mekler.ai/v1/data/responses/check-response-contract
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 2c907fbafc2085cc840f754e9f92dc89c9ddf079c6c7169832d8045604090f3e
- Leaf
- 0xc8ff88cf5df1cf5d23a2513a96d221a2cbc1919c007934b45a004044003f4be4
What was observed
{
"endpoints": [
[
"x402",
"https://api.mekler.ai/v1/data/responses/check-response-contract"
]
],
"name": "Mekler AI",
"owner_address": "0xf6c6e2e530bb311c14a49c1a07c720fc232c07c5",
"raw": {
"accepts": [
{
"amount": "50000",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
"meklerQuote": "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.3ffdee4afd6f95fb9c60942677ab613d03b3dfa1a5157fb6f14621b5429fa43c",
"memo": "m:P_3uSv1vlfucYJQmd6thPQ"
},
"maxTimeoutSeconds": 60,
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "9mMDrHabSf73MPn1ANdANSmsNw2wKiqE7JZ7eD6EUSRc",
"scheme": "exact"
},
{
"amount": "50000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"assetTransferMethod": "eip3009",
"meklerQuote": "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.3adfbf466a71136d4cb64902652c82f369ab7037c0086b0686b042ce33bdd901",
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 60,
"network": "eip155:8453",
"payTo": "0xF6c6E2e530bb311c14a49C1a07C720fc232c07c5",
"scheme": "exact"
}
],
"description": "Check supplied JSON against a bounded Draft 2020-12 schema, declared timestamp freshness and optional claim evidence. Return separate pass/fail/review findings. Evidence assessment is advisory and uses supplied excerpts only; no external fact verification, source authentication or URL retrieval.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"freshness": {
"max_age_seconds": 300,
"pointer": "/updated_at",
"reference_time": "2026-10-21T12:01:00Z"
},
"request_id": "response-check-example-001",
"response": {
"updated_at": "2026-10-21T12:00:00Z",
"value": 12
},
"schema": {
"additionalProperties": false,
"properties": {
"updated_at": {
"format": "date-time",
"type": "string"
},
"value": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"value",
"updated_at"
],
"type": "object"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"freshness": {
"age_seconds": 60,
"pointer": "/updated_at",
"reason": "within_declared_age",
"status": "pass"
},
"limitations": [
"Only the requested contract is checked; pass is not proof of truth, source authenticity or suitability for a consequential decision."
],
"observed_at": "2026-10-21T12:01:00Z",
"schema": {
"draft": "2020-12",
"error_limit_reached": false,
"errors": [],
"format_assertions": [
"date-time",
"ipv4",
"ipv6",
"uuid"
],
"status": "pass"
},
"semantic": {
"claims": [],
"method": null,
"status": "not_requested"
},
"status": "ok",
"verdict": "pass"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"freshness": {
"additionalProperties": false,
"properties": {
"max_age_seconds": {
"maximum": 31536000,
"minimum": 0,
"type": "integer"
},
"pointer": {
"maxLength": 256,
"type": "string"
},
"reference_time": {
"type": "string"
}
},
"required": [
"pointer",
"reference_time",
"max_age_seconds"
],
"type": "object"
},
"request_id": {
"pattern": "^[A-Za-z0-9_-]{16,64}$",
"type": "string"
},
"response": {},
"schema": {
"oneOf": [
{
"type": "boolean"
},
{
"type": "object"
}
]
},
"semantic": {
"items": {
"additionalProperties": false,
"properties": {
"evidence": {
"maxLength": 3000,
"minLength": 1,
"type": "string"
},
"pointer": {
"maxLength": 256,
"type": "string"
}
},
"required": [
"pointer",
"evidence"
],
"type": "object"
},
"maxItems": 4,
"minItems": 1,
"type": "array"
}
},
"required": [
"request_id",
"response"
],
"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": {
"additionalProperties": false,
"properties": {
"freshness": {
"properties": {
"status": {
"enum": [
"pass",
"fail",
"not_requested"
],
"type": "string"
}
},
"required": [
"status"
],
"type": "object"
},
"limitations": {
"items": {
"type": "string"
},
"type": "array"
},
"observed_at": {
"type": "string"
},
"schema": {
"properties": {
"status": {
"enum": [
"pass",
"fail",
"not_requested"
],
"type": "string"
}
},
"required": [
"status"
],
"type": "object"
},
"semantic": {
"additionalProperties": false,
"properties": {
"claims": {
"items": {
"additionalProperties": false,
"properties": {
"evidence_quote": {
"maxLength": 300,
"type": "string"
},
"pointer": {
"type": "string"
},
"verdict": {
"enum": [
"supported",
"contradicted",
"uncertain"
],
"type": "string"
}
},
"required": [
"pointer",
"verdict",
"evidence_quote"
],
"type": "object"
},
"maxItems": 4,
"type": "array"
},
"method": {
"type": [
"string",
"null"
]
},
"status": {
"enum": [
"pass",
"fail",
"review",
"not_requested"
],
"type": "string"
}
},
"required": [
"status",
"method",
"claims"
],
"type": "object"
},
"status": {
"enum": [
"ok"
],
"type": "string"
},
"verdict": {
"enum": [
"pass",
"fail",
"review"
],
"type": "string"
}
},
"required": [
"status",
"verdict",
"schema",
"freshness",
"semantic",
"observed_at",
"limitations"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-21T14:57:31.169Z",
"quality": {
"l30DaysTotalCalls": 2,
"l30DaysUniquePayers": 2,
"lastCalledAt": "2026-10-21T14:57:30.764Z"
},
"resource": "https://api.mekler.ai/v1/data/responses/check-response-contract",
"serviceName": "Mekler AI",
"tags": [
"Data",
"Response validation",
"JSON Schema",
"Freshness",
"Evidence"
],
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Check supplied JSON against a bounded Draft 2020-12 schema, declared timestamp freshness and optional claim evidence. Return separate pass/fail/review findings. Evidence assessment is advisory and uses supplied excerpts only; no external fact verification, source authentication or URL retrieval."
}What the leaf hashes
{"body":"2c907fbafc2085cc840f754e9f92dc89c9ddf079c6c7169832d8045604090f3e","id":67352,"kind":"listing","method":"baseline/1","observed_us":1793025462626338,"prev":null,"subject":"x402_bazaar:https://api.mekler.ai/v1/data/responses/check-response-contract","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.