{
  "chain_slug": "mode",
  "name": "Mode",
  "scorecard_profile": "rollup-L2",
  "evaluated_at": "2026-04-18",
  "evaluator": "layerqu-v2-scoring-agent-3",
  "v1_reference": "chainscreen-v1-archive",
  "dimensions": {
    "1_cryptographic_exposure": {
      "weight": 0.12,
      "score": 20,
      "sub_scores": {
        "1a_primitive_inventory": {
          "score": 8,
          "primitives_named": [
            "ECDSA secp256k1 (inherited from Ethereum)",
            "Keccak-256",
            "OP Stack fault proofs (hash-based)"
          ],
          "evidence": [
            "https://docs.mode.network"
          ],
          "note": "OP Stack Superchain member."
        },
        "1b_shor_grover_pq_tag": {
          "score": 8,
          "tags": {
            "ECDSA secp256k1": "Shor-break",
            "Keccak-256": "Grover-weaken-128bit"
          },
          "evidence": []
        },
        "1c_algorithm_family_diversity": {
          "score": 0,
          "families_represented": 0,
          "families": [],
          "note": "No PQC families deployed"
        },
        "1d_nist_security_category": {
          "score": 0,
          "mappings": {},
          "note": "No NIST PQC primitives deployed"
        },
        "1e_implementation_quality": {
          "score": 4,
          "formal_verification": "OP Stack audits (external)",
          "constant_time": "standard libraries",
          "libraries": [
            "OP Stack"
          ],
          "evidence": []
        }
      },
      "total_artifacts": 1
    },
    "2_hndl_exposure": {
      "weight": 0.08,
      "score": 10,
      "sub_scores": {
        "2a_active_key_exposure": {
          "score": 3,
          "note": "Inherits Ethereum ECDSA. Young L2."
        },
        "2b_cold_key_exposure": {
          "score": 2,
          "note": "Mainnet 2024. Short cold-key horizon."
        },
        "2c_signature_longterm_validity": {
          "score": 2,
          "note": "ECDSA Shor-breakable."
        },
        "2d_encryption_confidentiality": {
          "score": 3,
          "note": "Standard TLS. No PQC KEM."
        }
      },
      "total_artifacts": 0
    },
    "3_metadata_privacy_exposure": {
      "weight": 0.08,
      "score": 20,
      "sub_scores": {
        "3a_tx_graph_visibility": {
          "score": 5,
          "note": "Pseudonymous EVM transparency."
        },
        "3b_rpc_mempool_concentration": {
          "score": 5,
          "note": "Centralized sequencer (Superchain member)."
        },
        "3c_cross_chain_bridge_correlation": {
          "score": 5,
          "note": "ETH<->Mode bridge + Superchain interop visible."
        },
        "3d_retroactive_deanon_risk": {
          "score": 5,
          "note": "Non-private by design."
        }
      },
      "total_artifacts": 0
    },
    "4_migration_architecture": {
      "weight": 0.15,
      "score": 30,
      "sub_scores": {
        "4a_crypto_agility": {
          "score": 8,
          "note": "OP Stack Superchain member — upgrades coordinated via Optimism governance."
        },
        "4b_account_abstraction_key_rotation": {
          "score": 8,
          "note": "Inherits ERC-4337/EIP-7702 from Ethereum."
        },
        "4c_hard_fork_track_record": {
          "score": 8,
          "note": "Superchain coordination (permissionless fault proofs rollout 2024-2025)."
        },
        "4d_hybrid_deployment_readiness": {
          "score": 6,
          "note": "No hybrid PQC plan; depends on Ethereum/OP Superchain."
        }
      },
      "total_artifacts": 2
    },
    "5_deployment_execution": {
      "weight": 0.22,
      "score": 0,
      "sub_scores": {
        "5a_mainnet_pqc_pct": {
          "score": 0,
          "mainnet_pqc_pct": 0,
          "evidence": [],
          "note": "no public artifact found"
        },
        "5b_pqc_code_in_client": {
          "score": 0,
          "note": "no public artifact found"
        },
        "5c_validator_pqc_adoption": {
          "score": 0,
          "note": "no public artifact found"
        },
        "5d_published_milestones_count": {
          "score": 0,
          "count": 0,
          "note": "no public artifact found"
        },
        "5e_pqc_washing_delta": {
          "score": 0,
          "ratio": 1,
          "note": "No PQC announcements."
        }
      },
      "total_artifacts": 0
    },
    "6_supply_chain_vendor_readiness": {
      "weight": 0.25,
      "score": 6,
      "sub_scores": {
        "6a_wallet": {
          "score": 2,
          "top3": [
            "MetaMask",
            "Rabby",
            "Rainbow"
          ],
          "pqc_roadmap_count": 0
        },
        "6b_bridge": {
          "score": 1,
          "top3": [
            "Mode Native Bridge",
            "Superchain interop",
            "LayerZero"
          ],
          "pqc_roadmap_count": 0
        },
        "6c_custodian": {
          "score": 2,
          "top3": [
            "Fireblocks (research only)",
            "BitGo",
            "Coinbase Custody"
          ],
          "pqc_roadmap_count": 0
        },
        "6d_rpc_hsm": {
          "score": 1,
          "top3": [
            "Mode RPC",
            "Alchemy",
            "QuickNode"
          ],
          "pqc_roadmap_count": 0
        }
      },
      "total_artifacts": 0
    },
    "7_governance_coordination": {
      "weight": 0.1,
      "score": 25,
      "sub_scores": {
        "7a_validator_stake_distribution": {
          "score": 5,
          "note": "Centralized sequencer. Superchain governance indirect."
        },
        "7b_upgrade_cadence_under_pressure": {
          "score": 7,
          "note": "Superchain-coordinated upgrades. Not independently governed."
        },
        "7c_named_coordination_lead": {
          "score": 7,
          "note": "Mode Foundation team. No named PQC lead."
        },
        "7d_adversarial_coordination_precedent": {
          "score": 5,
          "note": "No standalone precedent — inherits OP Superchain responses."
        }
      },
      "total_artifacts": 1
    }
  },
  "gates": {
    "hybrid_deployment": "FAIL",
    "evidence_reconstruction": "PASS",
    "primitive_naming": "PASS"
  },
  "caps_applied": [
    "Mosca (5a<20% → QRI max 60)",
    "Sutor (5d=0 → Migration Stage max 2)",
    "Preskill (most dims <3 artifacts × 0.5)",
    "Casado (4 vendor tiles pqc=0 → migration_stage max 3)",
    "Hybrid gate FAIL → QRI cap 60"
  ],
  "qri": {
    "raw": 10,
    "after_caps": 10,
    "ci_plus_minus": 13,
    "band": 1,
    "band_name": "Unaware"
  },
  "migration_stage": 0,
  "mosca_inequality": {
    "X_signature_shelf_life_years": "4-8 (young L2)",
    "Y_migration_time_years_range": "10-15 (Superchain-gated)",
    "Z_10pct_year": 2036,
    "Z_50pct_year": 2041,
    "danger_zone_at_50pct": true
  },
  "four_scenario_grid": {
    "quantum_never": {
      "value_preserved_pct": 100,
      "privacy_preserved_pct": 100
    },
    "arrives_suddenly_pre_migration": {
      "value_preserved_pct": 5,
      "privacy_preserved_pct": 10
    },
    "arrives_slowly_post_migration": {
      "value_preserved_pct": 80,
      "privacy_preserved_pct": 70
    },
    "arrives_slowly_mid_migration": {
      "value_preserved_pct": 30,
      "privacy_preserved_pct": 25
    }
  },
  "burn_vs_rescue_policy": "undeclared",
  "pqc_washing_ratio": 1,
  "vendor_tile_summary": {
    "wallet": {
      "top3": [
        "MetaMask",
        "Rabby",
        "Rainbow"
      ],
      "pqc_roadmap_count": 0
    },
    "bridge": {
      "top3": [
        "Mode Native Bridge",
        "Superchain interop",
        "LayerZero"
      ],
      "pqc_roadmap_count": 0
    },
    "custodian": {
      "top3": [
        "Fireblocks",
        "BitGo",
        "Coinbase Custody"
      ],
      "pqc_roadmap_count": 0
    },
    "rpc_hsm": {
      "top3": [
        "Mode RPC",
        "Alchemy",
        "QuickNode"
      ],
      "pqc_roadmap_count": 0
    }
  },
  "narrative_summary": "Mode is an OP Stack Superchain L2. Standard ECDSA + Keccak-256 stack. No independent PQC activity; quantum path fully gated by Ethereum + OP Superchain. Band 1 Unaware.",
  "evaluator_notes": "Mode has no independent cryptographic sovereignty — any PQC migration is Ethereum/OP Superchain-driven. Small vendor footprint. No notable PQC signals.",
  "narrative_voiced": "Mode is an OP Stack Superchain member, which is the polite way of saying its quantum timeline is Optimism's timeline. No independent roadmap, no independent upgrade path. Whatever Ethereum and OP governance decide, Mode ships six months later."
}