att.json

{
  "attestation_id": "att_1a83a636569e4e93",
  "schema": "darwin.cloud/agenticcloud/attestation/v0.2",
  "issued_at": "2026-05-29T01:10:03Z",
  "workload_spec_hash": "4fa10188f2faa0d07f25cb38df5492424b7f154d874e02463216ea827ae1748a",
  "execution_result": {
    "output_hash": "67ecdb031db5e6529d6edd8d25eb20dd443162fd8b3fdf4b121dbfc82e7906be",
    "substrate": {
      "id": "local-docker-v0",
      "version": "0.1.0",
      "identity_signature": "c/zmytDvWNdHsirKXs6LYyuT0CyEEhuStDb+CbzxVfsIzU/lgCVGphYNYzE/s0/GKxoRthL4PHfbnJGgoe2XAQ==",
      "identity_signer_type": "darwin-class-key",
      "identity_signer_key_id": "dac-class-local-docker-v0-ca698355dcb631e3",
      "evidence_schema_id": "darwin.cloud/evidence/local-docker/v1",
      "evidence": {
        "container_status": "ok",
        "exit_code": 0,
        "stdout_hash": "67ecdb031db5e6529d6edd8d25eb20dd443162fd8b3fdf4b121dbfc82e7906be",
        "stderr_hash": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
        "wall_time_sec": 0.11720395088195801
      },
      "extensions": {},
      "tee_required": false
    },
    "cost_usd": 1.172e-05,
    "stdout": "hello from a real attestation\n",
    "stderr": ""
  },
  "value_added_service": {
    "identity_signing": {
      "schema_compliant": true,
      "keylist_url": "https://darwin-agentic-cloud.fly.dev/.well-known/substrate-keys.json"
    },
    "cost_cap_enforcement": {
      "cap_usd": 0.1,
      "estimated_usd_max": 0.003,
      "actual_usd": 1.172e-05,
      "within_cap": true,
      "headroom_usd": 0.09998828
    },
    "routing_decision": {
      "policy": "pick_by_cost",
      "chosen_substrate_id": "local-docker-v0",
      "chosen_reason": "lowest_estimated_cost ($0.003000)",
      "candidates_considered": 1,
      "rejected_substrates": []
    }
  },
  "signer_key_id": "dac-local-d1bf7cad25875cee",
  "signature": "cyIS5v4zUkyIAyfISoBAYBZifIRQdAYX2ZU1o8KOSf/NGg/hC80lRqblFNCXRouETqeXL8A35UqJVx+2C8w+Bg=="
}