{
  "card_id": "ATC-2026-1509360",
  "status": "active",
  "payload": {
    "card_id": "ATC-2026-1509360",
    "schema_version": "1.1.0",
    "decision_authority": "consumer",
    "agent_id": "skill.mn-sub-51326",
    "agent_name": "awesome-mcp-servers",
    "identity": {
      "public_key": "marketnow-skill:mn-sub-51326",
      "key_algorithm": "Ed25519"
    },
    "trust": {
      "sentinel_review_score": 0,
      "sentinel_score": 0,
      "audit_layers_passed": {},
      "composite_trust": 0,
      "risk_level": "not_audited",
      "certificate_id": null
    },
    "capabilities": {
      "provides": [
        "mcp-server"
      ],
      "protocol_language": "mcp",
      "translate": true
    },
    "payment": {
      "method": "x402 + USDC on Base L2",
      "wallet_address": null
    },
    "metadata": {
      "issued_at": "2026-07-28T23:31:49.360Z",
      "expires_at": "2026-10-26T23:31:49.360Z",
      "issuer": "MarketNow Sentinel CA",
      "revocation_url": "https://marketnow.site/api/atc?action=verify&card_id=ATC-2026-1509360"
    }
  },
  "signature": {
    "algorithm": "Ed25519 (RFC 8032)",
    "value": "190afcf198db0518bd71f45310eb84a02701a12ca93fa320d554e9ed656bf7268437b5f4f6aac36b80ee2a0504a00f10bbd220115b70e38aba18a5ed1e622d0b",
    "signed_by": "MarketNow Sentinel CA",
    "signed_at": "2026-07-28T23:31:49.360Z",
    "canonical_json": "JSON.stringify(payload, Object.keys(payload).sort())",
    "verify_with": "GET /api/atc?action=ca-key"
  }
}