Check a SHA-256 against a Securaw/TimeChain2 event
Check a SHA-256 against a Securaw/TimeChain2 event. Reports registry checks and direct-file Bitcoin proof separately, with downloadable proof when available. Missing events and mismatches are billable results. Pending/unavailable is NOT Bitcoin confirmed. Legacy receipts without direct-file proofs are explicitly identified. No arbitrary-chain verification. Idempotency-Key required.
Answeringour last check, 2026-09-28
1 of 1checks answered this week
855 msmedian answer time
$0.02listed price per call
$0.02price 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://www.securaw.com/cryptovar/x402/proof_verify
| Category | Company and compliance |
|---|---|
| Provider host | www.securaw.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-28 | valid payment request | 402 | $0.02 | 855 ms |
Example input (from the provider)
{
"body": {
"parameters": {
"event_id": "fileproof-20260927191946-1429",
"sha256": "1aa02dbff8eca9062771ff32967ce149ae1f3f837de31e214ae417eed4ebb6e2"
},
"service": "proof_verify"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"description": "JSON request envelope. Numeric inputs must be JSON numbers. Unknown fields are rejected. Idempotency-Key header required for paid requests.",
"properties": {
"parameters": {
"additionalProperties": false,
"properties": {
"event_id": {
"description": "Securaw/TimeChain2 event identifier from a receipt, never a URL.",
"pattern": "^[A-Za-z0-9][A-Za-z0-9_-]{0,127}$",
"title": "Event Id",
"type": "string"
},
"sha256": {
"description": "Lowercase SHA-256 of exact original bytes, computed locally. No filename or private content.",
"pattern": "^[0-9a-f]{64}$",
"title": "Sha256",
"type": "string"
}
},
"required": [
"sha256",
"event_id"
],
"title": "VerifyInput",
"type": "object"
},
"service": {
"enum": [
"proof_verify"
],
"type": "string"
}
},
"required": [
"service",
"parameters"
],
"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"
},
"output": {
"properties": {
"example": {
"properties": {
"result": {
"type": "object"
},
"service": {
"const": "proof_verify"
}
},
"required": [
"service",
"result"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}