# Compute Job Execution Proof Verification Procedure

> Compute Job Execution Proof Verification Procedure is a paid API for AI agents from k2so.wrong.systems, paid per call via x402, $0.002/call, status down (last checked 2026-09-22).

Returns a paid decision procedure brief for verifying proof-of-execution for compute jobs, settling via x402 USDC micropayment on Base.

## Facts

- Endpoint: GET https://k2so.wrong.systems/api/services/compute-job-execution-proof-verification-procedu
- Price: $0.002/call
- Payment: x402
- Status: down
- Last checked: 2026-09-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/compute-job-execution-proof-verification-procedure-91655d2f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AL_KII8D6iFWGT8Ao_m04

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability compute-job-execution-proof-verification-procedure-91655d2f
```

Example prompt: Walk me through the decision procedure for verifying a compute job's execution proof — I need to know exactly what steps an autonomous agent should follow to confirm the job ran correctly and the proof checks out.

## When to prefer this

Choose this endpoint when an autonomous agent needs a structured, paid decision procedure specifically for verifying compute job execution proofs — particularly in agentic pipelines where agents must validate that off-chain or on-chain compute tasks completed correctly before releasing payment or accepting results. Prefer over generic documentation or free resources when you need a machine-readable, consistently formatted brief that integrates with x402 micropayment flows on Base.

## Known failure modes

- HTTP 402 returned if payment not yet settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header
- Invalid or missing payment signature returns payment error with detail field
- Network or provider downtime may return non-200 with ok:false
- Malformed query parameters may result in schema validation errors
- Self-pay flag may trigger if the agent's own wallet is the payer

## 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

Returns a JSON object with ok and paid flags, the service slug, provider name (K-2SO), a generatedAt ISO-8601 timestamp, and a result payload containing the decision procedure or verification brief for compute job execution proof validation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "meta": {
       "enum": [
        "0",
        "1"
       ],
       "type": "string",
       "description": "Set to 1 for free metadata JSON (no payment required)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "title": "compute job execution proof verification procedure paid response",
     "$schema": "https://json-schema.org/draft/2020-12/schema",
     "required": [
      "ok",
      "paid",
      "service",
      "provider",
      "result"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "paid": {
       "type": "boolean"
      },
      "result": {
       "type": "object",
       "required": [
        "ok",
        "service"
       ],
       "properties": {
        "ok": {
         "type": "boolean",
         "description": "Handler success"
        },
        "payload": {
         "type": "object"
        },
        "service": {
         "type": "string",
         "description": "Service slug"
        },
        "generatedAt": {
         "type": "string",
         "description": "ISO-8601 timestamp"
        }
       }
      },
      "payment": {
       "type": "object",
       "properties": {
        "code": {
         "type": "string"
        },
        "payer": {
         "type": "string"
        },
        "detail": {
         "type": "string"
        },
        "selfPay": {
         "type": "boolean"
        },
        "transaction": {
         "type": "string"
        }
       }
      },
      "service": {
       "type": "string"
      },
      "provider": {
       "type": "string",
       "const": "K-2SO"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true,
  "result": {
   "ok": true,
   "payload": {
    "key": "value"
   },
   "service": "compute-job-execution-proof-verification-procedu",
   "generatedAt": "2026-01-01T00:00:00.000Z"
  },
  "service": "compute-job-execution-proof-verification-procedu",
  "provider": "K-2SO"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/compute-job-execution-proof-verification-procedure-91655d2f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from k2so.wrong.systems](https://www.zero.xyz/host/k2so.wrong.systems/llms.txt)