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Compute Job Execution Proof Verification Procedure
x402
Compute Job Execution Proof Verification Procedure is a paid API for AI agents from k2so-8080.on.ascii.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).
Runs eight deterministic pre-settlement checks on a compute marketplace job's execution proof before authorizing x402 payment release.
Price / call$0.002
Success—
StatusUnknown
How this service works
Deterministic pre-settlement verification for compute marketplace jobs paid via x402. Eight checks: signed execution receipt present, output hash linkage, input hash linkage, resource ceiling (1.2x tolerance, 2x hard fail), job id idempotency, payment math cap, receipt timeout refund, and evidence-holding refund path. Pay only after all checks pass.
Output
A structured response indicating whether all eight verification checks passed (ok boolean), which checks failed if any, whether payment is authorized, refund eligibility status, and a service timestamp. The payload includes the service slug and handler success status.
Example use cases
Pre-payment proof check for AI inference job
“I just got back a result from a compute marketplace job for an AI inference task. Before I release the x402 payment, can you run the full eight-check verification on the execution proof to confirm the signed receipt is present, the hashes link up, and the resource usage didn't blow past the 2x hard cap?”
Timeout refund eligibility check
“A compute job I submitted has timed out without a completed receipt — can you run the proof verification procedure to confirm whether I'm eligible for a timeout refund before I do anything else?”
Idempotency guard before job re-submission
“I want to make sure I'm not paying twice for the same compute job — can you run the job ID idempotency check as part of the full pre-settlement verification before I authorize the second payment?”
Technical details
Endpoint
GEThttps://k2so-8080.on.ascii.dev/api/services/compute-job-execution-proof-verification-proceduWhen to prefer
Use this endpoint when operating an autonomous agent in a compute marketplace that settles jobs via x402 payments and you need a deterministic, multi-check proof verification gate before authorizing payment. It is specifically designed for the K-2SO provider's eight-check pre-settlement protocol and is the canonical verification step before any compute payment release in that ecosystem.
Side effects
- Missing or invalid signed execution receipt causes check 1 to fail
- Output or input hash mismatch fails linkage checks
- Resource usage exceeding 2x hard cap causes hard fail and blocks payment
- Job ID already seen triggers idempotency failure
- Payment amount exceeds math cap
- Receipt timestamp outside allowed window triggers timeout refund path
- Network or service unavailability returns non-200 response
- Malformed input schema returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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