Execution Protocol Receipt

USD 50.00

EXECUTED

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

✓ Verified · EXECUTED

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

Structural — hash chain
Kid resolved
ES256 signature
Not quarantined

Transaction

Archetype: PAYMENT_TRANSFER
Receipt ID: 2ec3d55c-7ba1-4f96-a6b8-05f842b76f69
Transaction ID: txn_transfer_executed
Event type: ORIGINAL
Payment status: charged
Chain integrity: Hash chain intact — 9 linked entries

Deterministic execution pipeline · 8 steps · all passed

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

View full hash chain (9 entries)

#0 __genesis__0ms
in:null
out:null
hash:30a9d75b3047c670f38bfe4732fb1e0cde6497a580a988787e5f080f3eeeafb3
prev:0000000000000000000000000000000000000000000000000000000000000000
#1 token_validation2ms
in:{"tokenId":"tok-sandbox-public"}
out:{"tokenAccepted":true}
hash:d849c56fc221f632d09e1cdc4addd905da8c5c330076bf123d78bb458acccd77
prev:30a9d75b3047c670f38bfe4732fb1e0cde6497a580a988787e5f080f3eeeafb3
#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": "2ec3d55c-7ba1-4f96-a6b8-05f842b76f69",
  "transactionId": "txn_transfer_executed",
  "agentId": "agent_sandbox_demo",
  "sessionId": "session_sandbox",
  "created": "2026-05-09T04:51:27.168Z",
  "entries": [
    {
      "entryId": "53ace4d2-2c6e-4c87-b91f-3d5d43b5513f",
      "index": 0,
      "stepName": "__genesis__",
      "input": null,
      "output": null,
      "startTime": "2026-05-09T04:51:27.168Z",
      "endTime": "2026-05-09T04:51:27.168Z",
      "latencyMs": 0,
      "cost": null,
      "error": null,
      "previousHash": "0000000000000000000000000000000000000000000000000000000000000000",
      "metadata": {},
      "hash": "30a9d75b3047c670f38bfe4732fb1e0cde6497a580a988787e5f080f3eeeafb3"
    },
    {
      "entryId": "8ea51942-394e-4a55-b86f-dd729bd31569",
      "index": 1,
      "stepName": "token_validation",
      "input": {
        "tokenId": "tok-sandbox-public"
      },
      "output": {
        "tokenAccepted": true
      },
      "startTime": "2026-05-06T14:32:00.000Z",
      "endTime": "2026-05-06T14:32:00.002Z",
      "latencyMs": 2,
      "cost": null,
      "error": null,
      "previousHash": "30a9d75b3047c670f38bfe4732fb1e0cde6497a580a988787e5f080f3eeeafb3",
      "metadata": {},
      "hash": "d849c56fc221f632d09e1cdc4addd905da8c5c330076bf123d78bb458acccd77"
    },
    {
      "entryId": "c9584373-172d-44de-951a-9701776adfcd",
      "index": 2,
      "stepName": "schema",
      "input": {
        "archetype": "PAYMENT_TRANSFER",
        "constraints": {
          "recipient": "vendor/acme_corp",
          "amount_usd": "50.00",
          "max_total_usd": "1000.00"
        }
      },
      "output": {
        "schemaValid": true
      },
      "startTime": "2026-05-06T14:32:00.003Z",
      "endTime": "2026-05-06T14:32:00.006Z",
      "latencyMs": 3,
      "cost": null,
      "error": null,
      "previousHash": "d849c56fc221f632d09e1cdc4addd905da8c5c330076bf123d78bb458acccd77",
      "metadata": {},
      "hash": "31cdceb60986318a550cb196403868c7f0feaae38c6b14e12cc85b199e8dd60d"
    },
    {
      "entryId": "8426b7e9-8e13-4719-89e2-16e7589389f7",
      "index": 3,
      "stepName": "boundary",
      "input": {
        "archetype": "PAYMENT_TRANSFER"
      },
      "output": {
        "policyPassed": true
      },
      "startTime": "2026-05-06T14:32:00.007Z",
      "endTime": "2026-05-06T14:32:00.012Z",
      "latencyMs": 5,
      "cost": null,
      "error": null,
      "previousHash": "31cdceb60986318a550cb196403868c7f0feaae38c6b14e12cc85b199e8dd60d",
      "metadata": {},
      "hash": "6a66d240edbb01d30721092a6742e900d0840a32360e836edfd646dc8a2e2498"
    },
    {
      "entryId": "475e8894-0d0a-4615-ac39-528ab6a265b4",
      "index": 4,
      "stepName": "completeness",
      "input": {
        "archetype": "PAYMENT_TRANSFER"
      },
      "output": {
        "allRequiredPresent": true
      },
      "startTime": "2026-05-06T14:32:00.013Z",
      "endTime": "2026-05-06T14:32:00.015Z",
      "latencyMs": 2,
      "cost": null,
      "error": null,
      "previousHash": "6a66d240edbb01d30721092a6742e900d0840a32360e836edfd646dc8a2e2498",
      "metadata": {},
      "hash": "3513d9fce243de8e8d4b1fa34afa3d3ec345f0faf586e5a62f967be6ac9183a6"
    },
    {
      "entryId": "2c8f7c94-892e-44ad-b8c7-d791a2c730b4",
      "index": 5,
      "stepName": "math",
      "input": {
        "archetype": "PAYMENT_TRANSFER"
      },
      "output": {
        "anomalyVerdict": "ok",
        "score": 0.94
      },
      "startTime": "2026-05-06T14:32:00.016Z",
      "endTime": "2026-05-06T14:32:00.024Z",
      "latencyMs": 8,
      "cost": null,
      "error": null,
      "previousHash": "3513d9fce243de8e8d4b1fa34afa3d3ec345f0faf586e5a62f967be6ac9183a6",
      "metadata": {},
      "hash": "15823c0bb6aef5a418cc9ae3a756709c5191472267cba84b1cda7719cf817664"
    },
    {
      "entryId": "b75a1a8e-586b-44dd-aefe-3237944e9c41",
      "index": 6,
      "stepName": "execute",
      "input": {
        "archetype": "PAYMENT_TRANSFER",
        "constraints": {
          "recipient": "vendor/acme_corp",
          "amount_usd": "50.00",
          "max_total_usd": "1000.00"
        }
      },
      "output": {
        "providerRef": "ach-AY7F1",
        "chargedAmount": "50.00"
      },
      "startTime": "2026-05-06T14:32:00.025Z",
      "endTime": "2026-05-06T14:32:00.825Z",
      "latencyMs": 800,
      "cost": null,
      "error": null,
      "previousHash": "15823c0bb6aef5a418cc9ae3a756709c5191472267cba84b1cda7719cf817664",
      "metadata": {},
      "hash": "9f5db260d6346144f26aaae0625fc386e3c10185432ecee6bb1d3ac63a35a894"
    },
    {
      "entryId": "44297384-2e6f-40a6-ab9f-f802529aec19",
      "index": 7,
      "stepName": "commit_auth_split",
      "input": {
        "providerRef": "ach-AY7F1"
      },
      "output": {
        "committed": true
      },
      "startTime": "2026-05-06T14:32:00.826Z",
      "endTime": "2026-05-06T14:32:00.830Z",
      "latencyMs": 4,
      "cost": null,
      "error": null,
      "previousHash": "9f5db260d6346144f26aaae0625fc386e3c10185432ecee6bb1d3ac63a35a894",
      "metadata": {},
      "hash": "6070418ead2b1721396373f23cb1fe23e296ef2ec122506b9beb200ddd0140e0"
    },
    {
      "entryId": "e9ae12f7-e487-427a-a570-690aed30970a",
      "index": 8,
      "stepName": "receipt",
      "input": null,
      "output": {
        "signed": true
      },
      "startTime": "2026-05-06T14:32:00.831Z",
      "endTime": "2026-05-06T14:32:00.951Z",
      "latencyMs": 120,
      "cost": null,
      "error": null,
      "previousHash": "6070418ead2b1721396373f23cb1fe23e296ef2ec122506b9beb200ddd0140e0",
      "metadata": {},
      "hash": "51f3409457562df9076b49e39d83a6d8a733b788b1c10ec9e25fdee0fd74b610"
    }
  ],
  "signature": {
    "kid": "sandbox-2026-05",
    "alg": "ES256",
    "value": "Q2-6i3c0XBvShOEZGQiV5JxVV3TVvmgONWUeFjiXCdWgUS1jqCaIGt4REiy1FjFaJVAsRvT1J4b498QCfmYfZw"
  },
  "amendmentOf": null,
  "eventType": "ORIGINAL",
  "paymentStatus": "charged",
  "money": {
    "offerCurrency": "USD",
    "offerAmount": "50.00",
    "chargeCurrency": "USD",
    "chargeAmount": "50.00"
  },
  "idempotencyKey": "idem_transfer_executed",
  "replicaId": "sandbox-replica-0",
  "chainId": "chain_transfer_executed",
  "regulatoryFramework": [],
  "metadata": {
    "sandbox": true,
    "fixtureId": "transfer-ok",
    "pairId": "transfer",
    "outcome": "executed"
  }
}