{
  "id": "EP-ed594af8f57ff7c6a5a290ea78b4ffc1",
  "schema": "verdra/v0.1",
  "principal": "acme-procure-7",
  "captured_at": "2026-04-24T14:32:08.412Z",
  "strata": {
    "a": {
      "stratum": "transaction",
      "counterparty": "vendr-fulfill-2",
      "rail": "x402",
      "reference": "tx_8a3f2c1e",
      "payload": {
        "to": "vendr-fulfill-2",
        "amount": "1847.20",
        "currency": "USDC",
        "memo": "PO-2026-0418 / line items 3,7,11"
      },
      "timestamp": "2026-04-24T14:32:08.398Z"
    },
    "b": {
      "stratum": "configuration",
      "model": "claude-sonnet-4-5",
      "model_version": "2025-02-19",
      "system_prompt_hash": "blake3:7c4a8d09ca3762af61e59520943dc26476c83eaa1f2c9e5d4b8a3c7e1f5d9b04",
      "tool_inventory": ["pay", "ship", "lookup_invoice", "lookup_contract"],
      "spend_caps": {
        "per_tx": "5000 USDC",
        "per_day": "25000 USDC",
        "per_counterparty_per_day": "10000 USDC"
      },
      "runtime": "langgraph/0.2.34",
      "captured_by_reference": true
    },
    "c": {
      "stratum": "behavior",
      "decision_trace_id": "trace_4b2e8d3a",
      "tool_calls": [
        { "tool": "lookup_invoice", "ts": "2026-04-24T14:32:08.103Z", "latency_ms": 47 },
        { "tool": "lookup_contract", "ts": "2026-04-24T14:32:08.158Z", "latency_ms": 38 },
        { "tool": "pay", "ts": "2026-04-24T14:32:08.391Z", "latency_ms": 7 }
      ],
      "counterfactuals_considered": 3,
      "rationale_summary_hash": "blake3:c1e2a3f4b5d678910a2b3c4d5e6f708192a3b4c5d6e7f8091a2b3c4d5e6f7081"
    },
    "d": {
      "stratum": "mandate",
      "delegation_id": "dlg_4b2e",
      "scope": ["pay", "ship"],
      "limits": {
        "per_tx": "5000 USDC",
        "per_day": "25000 USDC"
      },
      "issued_by": "acme-treasury-controller",
      "issued_at": "2026-04-01T00:00:00.000Z",
      "expires": "2026-12-31T23:59:59.000Z",
      "delegation_signature": "ed25519:6a8f3c1d4e7b2a5c8f1e4d7b0a3c6f9e2b5d8a1c4f7e0b3d6a9c2f5e8b1d4a7c0f3e6b9d2a5c8f1e4d7b0a3c6f9e2b5d8a1c4f7e0b3d6a9c2f5e8b1d4a7c0f3e"
    }
  },
  "signed_with": {
    "algorithm": "ed25519",
    "public_key": "ed25519:9d3f8c1a4b7e2d5f6a8c0e3b9d1f7a4c8e2b5d8f1a6c9e3b7d4a2c5f8e1b0d3a"
  },
  "timestamp": {
    "mode": "deferred",
    "note": "RFC 3161 timestamping is a forward commitment under Rules P.5; closes alongside V1.0 schema freeze."
  },
  "storage": {
    "uri": "s3://acme-evidence/verdra/2026/04/24/EP-ed594af8f57ff7c6a5a290ea78b4ffc1.ep.json",
    "controlled_by": "principal"
  },
  "signature": {
    "value": "8f3c2a1e5d7b9c4f6a8e2d1c0b3f5a7d9e2c4b6f8a1d3e5c7b9f2a4d6e8c1b3f5a7d9e2c4b6f8a1d3e5c7b9f2a4d6e8c1b3f5a7d9e2c4b6f8a1d3e5c7b9f2a4d"
  },
  "_note": "This is a structural sample illustrating the V0.1 Evidence Package schema. The signature value is illustrative only; production packages are signed with a customer-held Ed25519 key and verify offline against the customer's public key."
}