Execution Protocol Receipt

USD 0.00

BLOCKED

Cryptographic proof of an Execution Protocol sandbox transaction. Every step is hash-chained, signed, and verifiable using only the public key.

✓ Verified · BLOCKED

This verification ran in your browser. No data was sent to the issuer.

Structural — hash chain
Kid resolved
ES256 signature
Not quarantined

Transaction

Archetype: DATA_EXPORT
Receipt ID: 70870e69-e431-43a1-bf1c-4643cf6c50aa
Transaction ID: txn_data_blocked
Event type: ORIGINAL
Payment status: not_charged
Chain integrity: Hash chain intact — 5 linked entries

Deterministic execution pipeline · 3 steps · halted

#1
Authorisation token verified
token_validation
2ms
#2
Request shape validated
schema
3ms
#3
Boundary policy passed
boundary
5ms
#4
Required fields present
completeness

View full hash chain (5 entries)

#0 __genesis__0ms
in:null
out:null
hash:414dbf4504a3c83f768665a53a1700391c683ccbc92a58fc56d1f91e5be25c4d
prev:0000000000000000000000000000000000000000000000000000000000000000
#1 token_validation2ms
in:{"tokenId":"tok-sandbox-public"}
out:{"tokenAccepted":true}
hash:4ca4946dfbc12e97add893d0e7000a228f7f2d145beffedc0b355aaefa7712c2
prev:414dbf4504a3c83f768665a53a1700391c683ccbc92a58fc56d1f91e5be25c4d
#2 schema3ms
in:

Verify locally

Run the verification in your browser. The receipt JSON and the published public key are the only inputs needed.

Spec: ep-receipt/2026-04-27
Algorithm: ES256
Canonicalisation: RFC 8785 JCS
Public keys: /.well-known/jwks.json

Open in /verify Run the 80-line Python verifier

Without an execution layer

✗ Action either runs unchecked or fails opaquely
✗ No third party can confirm what happened
✗ The audit trail is whoever the issuer says it is

With Execution Protocol

✓ Every action passes a deterministic policy gate
✓ Every terminal state emits a signed receipt
✓ Anyone with the public key can verify offline

The model can hallucinate. The execution layer cannot.

Receipt JSON

{
  "version": {
    "spec": "ep-receipt/2026-04-27"
  },
  "receiptId": "70870e69-e431-43a1-bf1c-4643cf6c50aa",
  "transactionId": "txn_data_blocked",
  "agentId": "agent_sandbox_demo",
  "sessionId": "session_sandbox",
  "created": "2026-05-09T04:51:27.173Z",
  "entries": [
    {
      "entryId": "7ab62bf4-0893-48b9-b53b-4a52ce0dcdb8",
      "index": 0,
      "stepName": "__genesis__",
      "input": null,
      "output": null,
      "startTime": "2026-05-09T04:51:27.173Z",
      "endTime": "2026-05-09T04:51:27.173Z",
      "latencyMs": 0,
      "cost": null,
      "error": null,
      "previousHash": "0000000000000000000000000000000000000000000000000000000000000000",
      "metadata": {},
      "hash": "414dbf4504a3c83f768665a53a1700391c683ccbc92a58fc56d1f91e5be25c4d"
    },
    {
      "entryId": "774f5ce0-721f-4542-891e-f2e02dc0e8f6",
      "index": 1,
      "stepName": "token_validation",
      "input": {
        "tokenId": "tok-sandbox-public"
      },
      "output": {
        "tokenAccepted": true
      },
      "startTime": "2026-05-06T14:35:00.000Z",
      "endTime": "2026-05-06T14:35:00.002Z",
      "latencyMs": 2,
      "cost": null,
      "error": null,
      "previousHash": "414dbf4504a3c83f768665a53a1700391c683ccbc92a58fc56d1f91e5be25c4d",
      "metadata": {},
      "hash": "4ca4946dfbc12e97add893d0e7000a228f7f2d145beffedc0b355aaefa7712c2"
    },
    {
      "entryId": "b9d8e5cc-763f-4b7a-bf6f-dfe4bf8651d1",
      "index": 2,
      "stepName": "schema",
      "input": {
        "archetype": "DATA_EXPORT",
        "constraints": {
          "dataset": "customers/all-pii",
          "destination": "public-bucket://exports"
        }
      },
      "output": {
        "schemaValid": true
      },
      "startTime": "2026-05-06T14:35:00.003Z",
      "endTime": "2026-05-06T14:35:00.006Z",
      "latencyMs": 3,
      "cost": null,
      "error": null,
      "previousHash": "4ca4946dfbc12e97add893d0e7000a228f7f2d145beffedc0b355aaefa7712c2",
      "metadata": {},
      "hash": "2c5f12c89c30341957d78f200ca708a63da7d5a5900b4a3baa1ec05930cfea6e"
    },
    {
      "entryId": "88924f5a-cda4-4634-aa5a-85b722f4179c",
      "index": 3,
      "stepName": "boundary",
      "input": {
        "archetype": "DATA_EXPORT",
        "constraints": {
          "dataset": "customers/all-pii",
          "destination": "public-bucket://exports"
        }
      },
      "output": null,
      "startTime": "2026-05-06T14:35:00.007Z",
      "endTime": "2026-05-06T14:35:00.012Z",
      "latencyMs": 5,
      "cost": null,
      "error": "EP_BOUNDARY_BLOCK",
      "previousHash": "2c5f12c89c30341957d78f200ca708a63da7d5a5900b4a3baa1ec05930cfea6e",
      "metadata": {
        "code": "EP_BOUNDARY_BLOCK",
        "field": "dataset",
        "public_message": "This action could not be completed. The gateway logged the cause for review."
      },
      "hash": "598a9ca237525ed3e73436b9d7e3a9b3c1c216a70f0553d04dacb0e054360811"
    },
    {
      "entryId": "7026a3b4-1ece-408b-b804-a3562acafe31",
      "index": 4,
      "stepName": "receipt",
      "input": null,
      "output": {
        "signed": true
      },
      "startTime": "2026-05-06T14:35:00.013Z",
      "endTime": "2026-05-06T14:35:00.133Z",
      "latencyMs": 120,
      "cost": null,
      "error": null,
      "previousHash": "598a9ca237525ed3e73436b9d7e3a9b3c1c216a70f0553d04dacb0e054360811",
      "metadata": {},
      "hash": "f7c1dc7cd02f12def3dab007566346c6b01d3b9ecc2167c452ad4565d374a8e1"
    }
  ],
  "signature": {
    "kid": "sandbox-2026-05",
    "alg": "ES256",
    "value": "cZEnsZUg-kVwE4B-LHcPCvBWdOBiMlnZsRmJ0ONbVaEV3NEPnfP56Gnp03hJCDxIK_iajwqibXYSZ1wkzJOZjg"
  },
  "amendmentOf": null,
  "eventType": "ORIGINAL",
  "paymentStatus": "not_charged",
  "money": {
    "offerCurrency": "USD",
    "offerAmount": "0.00",
    "chargeCurrency": "USD",
    "chargeAmount": "0.00"
  },
  "idempotencyKey": "idem_data_blocked",
  "replicaId": "sandbox-replica-0",
  "chainId": "chain_data_blocked",
  "regulatoryFramework": [],
  "metadata": {
    "sandbox": true,
    "fixtureId": "data-pii",
    "pairId": "data",
    "outcome": "blocked"
  }
}