← The evidence ledger
Evidence row 123819
Observed , by baseline/1.
- Kind
- listing
- About
- source_record x402_bazaar:https://verifier.quantumshieldlabs.dev/x402/preflight
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 61214e4111a195a257137d127cb1c4e6281e089947cbb00ada91be0802ed5e0f
- Leaf
- 0xb120e128a9ae9d9fcf34a4f8d80c61ae9faaee026d01d17941775c63f8feeaa5
What was observed
{
"endpoints": [
[
"x402",
"https://verifier.quantumshieldlabs.dev/x402/preflight"
]
],
"name": "verifier.quantumshieldlabs.dev/x402/preflight",
"owner_address": "0x550205eca42aae871cfed6bc943fb2cf59f1d057",
"raw": {
"accepts": [
{
"amount": "5000",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"maxTimeoutSeconds": 300,
"network": "eip155:8453",
"payTo": "0x550205ECa42aAE871CFED6BC943fB2cF59F1d057",
"scheme": "exact"
}
],
"description": "Return an advisory ALLOW, DENY, or ESCALATE decision by comparing a bounded action request with authority, constraints, and evidence supplied by the caller. The service does not execute or legally authorize the action, access a wallet, validate identity, or independently observe facts.",
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"action_type": "purchase",
"authority_scope": {
"allowed_action_types": [
"purchase"
],
"denied_action_types": [
"withdraw"
],
"human_approval_action_types": [
"transfer"
]
},
"constraints": {
"max_spend_usd": "5.00",
"prohibited_destinations": [
"blocked-market.example"
],
"required_evidence": [
"inventory_check"
]
},
"evidence_items": [
{
"name": "inventory_check",
"result": true
}
],
"operation_id": "purchase-42",
"requested_action": {
"description": "Buy an approved test asset",
"destination": "approved-market.example",
"spend_usd": "4.50"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"example": {
"authority_boundary": "advisory_only: does not execute, authorize, or independently observe an action",
"decision": "ALLOW",
"evidence_boundary": "caller_supplied",
"matched_constraints": [
"authority_scope.allowed_action_types",
"constraints.max_spend_usd",
"constraints.required_evidence"
],
"missing_evidence": [],
"operation_id": "purchase-42",
"reason_code": "P001",
"reasons": [
"submitted request satisfies submitted policy"
],
"receipt_hash": "0000000000000000000000000000000000000000000000000000000000000000"
},
"type": "json"
}
},
"schema": {
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"action_type": {
"maxLength": 4096,
"type": "string"
},
"authority_scope": {
"additionalProperties": false,
"properties": {
"allowed_action_types": {
"items": {
"maxLength": 4096,
"type": "string"
},
"maxItems": 100,
"type": "array"
},
"denied_action_types": {
"items": {
"maxLength": 4096,
"type": "string"
},
"maxItems": 100,
"type": "array"
},
"human_approval_action_types": {
"items": {
"maxLength": 4096,
"type": "string"
},
"maxItems": 100,
"type": "array"
}
},
"type": "object"
},
"constraints": {
"additionalProperties": false,
"properties": {
"max_spend_usd": {
"type": [
"string",
"number"
]
},
"prohibited_destinations": {
"items": {
"maxLength": 4096,
"type": "string"
},
"maxItems": 100,
"type": "array"
},
"required_evidence": {
"items": {
"maxLength": 4096,
"type": "string"
},
"maxItems": 100,
"type": "array"
}
},
"type": "object"
},
"evidence_items": {
"items": {
"additionalProperties": false,
"properties": {
"description": {
"maxLength": 4096,
"type": "string"
},
"name": {
"maxLength": 4096,
"type": "string"
},
"result": {
"type": [
"boolean",
"null"
]
},
"source": {
"maxLength": 4096,
"type": "string"
}
},
"required": [
"name"
],
"type": "object"
},
"maxItems": 50,
"type": "array"
},
"operation_id": {
"maxLength": 4096,
"type": "string"
},
"requested_action": {
"additionalProperties": false,
"properties": {
"description": {
"maxLength": 4096,
"type": "string"
},
"destination": {
"maxLength": 4096,
"type": "string"
},
"spend_usd": {
"type": [
"string",
"number"
]
}
},
"required": [
"description"
],
"type": "object"
}
},
"required": [
"operation_id",
"action_type",
"requested_action",
"authority_scope"
],
"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": {
"authority_boundary": {
"type": "string"
},
"decision": {
"enum": [
"ALLOW",
"DENY",
"ESCALATE"
],
"type": "string"
},
"evidence_boundary": {
"const": "caller_supplied"
},
"matched_constraints": {
"items": {
"type": "string"
},
"type": "array"
},
"missing_evidence": {
"items": {
"type": "string"
},
"type": "array"
},
"operation_id": {
"type": "string"
},
"reason_code": {
"enum": [
"P001",
"P002",
"P003"
],
"type": "string"
},
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"receipt_hash": {
"pattern": "^[0-9a-f]{64}$",
"type": "string"
}
},
"required": [
"operation_id",
"decision",
"reason_code",
"reasons",
"matched_constraints",
"missing_evidence",
"evidence_boundary",
"authority_boundary",
"receipt_hash"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}
}
},
"lastUpdated": "2026-10-25T22:05:49.86Z",
"quality": {
"l30DaysTotalCalls": 40,
"l30DaysUniquePayers": 8,
"lastCalledAt": "2026-10-25T22:05:49.563Z"
},
"resource": "https://verifier.quantumshieldlabs.dev/x402/preflight",
"type": "http",
"x402Version": 2
},
"source": "x402_bazaar",
"summary": "Return an advisory ALLOW, DENY, or ESCALATE decision by comparing a bounded action request with authority, constraints, and evidence supplied by the caller. The service does not execute or legally authorize the action, access a wallet, validate identity, or independently observe facts."
}What the leaf hashes
{"body":"61214e4111a195a257137d127cb1c4e6281e089947cbb00ada91be0802ed5e0f","id":123819,"kind":"listing","method":"baseline/1","observed_us":1793025623750808,"prev":null,"subject":"x402_bazaar:https://verifier.quantumshieldlabs.dev/x402/preflight","subject_kind":"source_record"}Proof
Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.