ToolAssay

Verify a BlindOracle receipt against the parts a buyer cannot check alone

Verify a BlindOracle receipt against the parts a buyer cannot check alone: is the proof_id really in BlindOracle's append-only proof rail, does its payload still hash to the stored row, and does the row's HMAC-SHA256 verify against the signing key. Also recomputes content_sha256 and confirms the Base payment, so one call is a complete answer. Deterministic, no LLM. The self-checkable half is free forever in the published verify-blindoracle-receipt skill (RQ-BO-RECEIPT-VERIFY-01).

Answeringour last check, 2026-09-24
1 of 1checks answered this week
199 msmedian answer time
$0.01listed price per call
$0.01price it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://api.craigmbrown.com/v1/services/trust.receipt-verify

CategoryEverything else
Provider hostapi.craigmbrown.com
Networkseip155:8453
Payment schemesexact
Self-reported calls, 30 days1 from 1 payers (the provider's figure, not ours)

Our checks, last 30 days

DayResultHTTPAskedTime
2026-09-24 valid payment request 402$0.01 199 ms

Example input (from the provider)

{
  "body": {
    "prompt": "..."
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "properties": {
            "prompt": {
              "type": "string"
            }
          },
          "required": [
            "prompt"
          ],
          "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": {
          "properties": {
            "bo_trust": {
              "type": "object"
            },
            "checks": {
              "items": {
                "type": "object"
              },
              "type": "array"
            },
            "self_checkable_checks": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "seller_side_checks": {
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "verdict": {
              "enum": [
                "PASS",
                "PASS_WITH_GAPS",
                "FAIL",
                "INCONCLUSIVE"
              ],
              "type": "string"
            }
          },
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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