{
      "tool_id": "art-46-arc-paymaster-model",
      "tool_version": "1.0.0",
      "display_name": "Arc Paymaster Economics Model",
      "mcp_name": "model_arc_paymaster_economics",
      "mandate_type": "treasury_mandate",
      "wave": 10,
      "gpu": false,
      "url": "https://ainumbers.co/chaingraph/art-46-arc-paymaster-model.html",
      "semantic_profile": "iso20022:pacs.028",
      "description": "ERC-4337 Paymaster economics model for Arc. Computes gas cost (gasPerUop × gasPriceGwei × 1e-9 × ethPriceUsd), sponsorship break-even, and per-UOp user-facing cost. Comparison: Arc user pays / Arc+Paymaster / Ethereum L1. No ETH bootstrap required on Arc (USDC-as-gas).",
      "input_schema_ref": "chaingraph/art-46-arc-paymaster-model.html#manifest",
      "deadline": null,
      "deadline_note": "Arc mainnet 2026. ERC-4337 account abstraction live on Arc testnet Oct 2025.",
      "consumes": [
        "art-42-arc-fit-diagnostic"
      ],
      "feeds": [],
      "status": "live",
      "conformance_fixtures": false,
      "compute_capability": "server",
      "compute_images": [{"system":"sha256-source","image_id":"sha256:86b52d9ce0d72966dc6be706fe6621eb0c036d9be967792292fb315dad560cbd","valid_from":"2026-07-10"},{"system":"risc0","image_id":"sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6","valid_from":"2026-06-28"}],
      "compute_proof": {
        "type": "ZkVmReceipt",
        "system": "risc0",
        "receiptFormat": "groth16-bn254",
        "imageId": "sha256:a1a0bc89b5b1febaeda3519f6dbade0fa5ac16beeb143c4e1b01689573567bc6",
        "seal": "GUXbum4Ifnyw/v7JWj57VmCt/COSK/XjZ6lxT4hIyLcVrekLX0/Cdc0liZROGcLBBdr1umApwlYr3wAYq5x++xQrcSdUtZ7lVrJFZzhbttKjZGwNOHmCow0/hRJ1Br/7FsrZa4CVBRDU4BD9Qlc1txmDNOlNf9aLuhygSoKBJQsmJJUSXRhMqraHAGtl4Fzg0gr5vsqUA5CA8GAYcFBGRi8Y6W3hz/tta8DEDzjUM9EcHOxnvPy70W9M6Bosp1zaBiKpjYeoLyf3O7tbp6sGko9mdGul2NCG3I8W/BVH3HEtphlDeJ8OL4qBUE29WfEFY0Tg1icoJIlH3z6IOoMSgg==",
        "journal": {
          "chaingraph_version": "0.4.0",
          "kernel_digest": "sha256:86b52d9ce0d72966dc6be706fe6621eb0c036d9be967792292fb315dad560cbd",
          "output": {
            "annual_saving_usd": 9360000,
            "arc_cost_per_uop_full_usd": 0.15,
            "arc_cost_per_uop_merchant_usd": 0.12,
            "arc_cost_per_uop_user_usd": 0.03,
            "break_even_months": 0,
            "compliance_flags": [
              "ARC_PAYMASTER_MIGRATION_RECOMMENDED",
              "ERC4337_MERCHANT_SPONSORSHIP_ACTIVE"
            ],
            "eth_cost_per_uop_usd": 15.75,
            "impl_cost_usd": 36000,
            "monthly_saving_usd": 780000,
            "saving_bps": 9904.76,
            "saving_per_uop_usd": 15.6,
            "verdict": "MIGRATE"
          }
        }
      },
      "export_capability": [
        "xlsx",
        "csv",
        "pdf",
        "xbrl:ocg-ext"
      ]
    }