{
  "chain_slug": "loopring",
  "name": "Loopring",
  "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": 22,
      "sub_scores": {
        "1a_primitive_inventory": {
          "score": 9,
          "primitives_named": [
            "ECDSA secp256k1 (inherited from Ethereum)",
            "Groth16 SNARK over BN254 (pairing-based)",
            "EdDSA (internal account signatures)",
            "Keccak-256"
          ],
          "evidence": [
            "https://github.com/Loopring/protocols"
          ],
          "note": "zkRollup using Groth16. BN254 pairing curve."
        },
        "1b_shor_grover_pq_tag": {
          "score": 9,
          "tags": {
            "ECDSA secp256k1": "Shor-break",
            "Groth16 (BN254)": "Shor-break (pairing-based)",
            "EdDSA": "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": "Groth16 trusted setup (BN254 ceremony)",
          "constant_time": "standard libraries",
          "libraries": [
            "Loopring protocols (Solidity + circom)"
          ],
          "evidence": [
            "https://github.com/Loopring/protocols"
          ]
        }
      },
      "total_artifacts": 1
    },
    "2_hndl_exposure": {
      "weight": 0.08,
      "score": 8,
      "sub_scores": {
        "2a_active_key_exposure": {
          "score": 2,
          "note": "Project in terminal decline — user funds mostly withdrawn. Limited absolute HNDL surface."
        },
        "2b_cold_key_exposure": {
          "score": 2,
          "note": "Active since 2020. Cold-key EdDSA keys persist for dormant accounts."
        },
        "2c_signature_longterm_validity": {
          "score": 2,
          "note": "Groth16 proofs are Shor-breakable. Historical order books persistently exposed."
        },
        "2d_encryption_confidentiality": {
          "score": 2,
          "note": "Standard TLS. No PQC KEM."
        }
      },
      "total_artifacts": 0
    },
    "3_metadata_privacy_exposure": {
      "weight": 0.08,
      "score": 22,
      "sub_scores": {
        "3a_tx_graph_visibility": {
          "score": 6,
          "note": "zkRollup aggregation provides modest mempool privacy but on-chain state is transparent."
        },
        "3b_rpc_mempool_concentration": {
          "score": 6,
          "note": "Centralized Loopring-operated sequencer. Declining infrastructure."
        },
        "3c_cross_chain_bridge_correlation": {
          "score": 5,
          "note": "ETH<->Loopring bridge usage visible."
        },
        "3d_retroactive_deanon_risk": {
          "score": 5,
          "note": "Historical DEX order patterns + trader identities could retroactively deanon under Shor."
        }
      },
      "total_artifacts": 0
    },
    "4_migration_architecture": {
      "weight": 0.15,
      "score": 15,
      "sub_scores": {
        "4a_crypto_agility": {
          "score": 4,
          "note": "Groth16 requires trusted-setup ceremony for any circuit change. Team has deprioritized protocol development."
        },
        "4b_account_abstraction_key_rotation": {
          "score": 4,
          "note": "Loopring Smart Wallet (pioneer in smart-contract wallets) offers key rotation at contract layer. But team-controlled."
        },
        "4c_hard_fork_track_record": {
          "score": 4,
          "note": "V1 through V4 protocol evolution up to ~2023. Stalled since."
        },
        "4d_hybrid_deployment_readiness": {
          "score": 3,
          "note": "No hybrid PQC plan. Project no longer actively developed."
        }
      },
      "total_artifacts": 1
    },
    "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": 2,
      "sub_scores": {
        "6a_wallet": {
          "score": 1,
          "top3": [
            "Loopring Smart Wallet (deprecated)",
            "MetaMask",
            "Rabby"
          ],
          "pqc_roadmap_count": 0
        },
        "6b_bridge": {
          "score": 0,
          "top3": [
            "Loopring Bridge",
            "limited third-party"
          ],
          "pqc_roadmap_count": 0,
          "note": "Binance delisting has reduced vendor integration."
        },
        "6c_custodian": {
          "score": 1,
          "top3": [
            "Limited institutional support",
            "Fireblocks (minimal)",
            "Self-custody"
          ],
          "pqc_roadmap_count": 0
        },
        "6d_rpc_hsm": {
          "score": 0,
          "top3": [
            "Loopring RPC (limited uptime)",
            "Ankr",
            "dRPC"
          ],
          "pqc_roadmap_count": 0
        }
      },
      "total_artifacts": 0
    },
    "7_governance_coordination": {
      "weight": 0.1,
      "score": 10,
      "sub_scores": {
        "7a_validator_stake_distribution": {
          "score": 3,
          "note": "Centralized Loopring team sequencer."
        },
        "7b_upgrade_cadence_under_pressure": {
          "score": 2,
          "note": "Development effectively stalled. No recent upgrades."
        },
        "7c_named_coordination_lead": {
          "score": 3,
          "note": "Daniel Wang (founder) — reduced active presence. No named PQC lead."
        },
        "7d_adversarial_coordination_precedent": {
          "score": 2,
          "note": "Team hack in 2024 (GameStop-related wallet issue). Weak response."
        }
      },
      "total_artifacts": 1
    }
  },
  "gates": {
    "hybrid_deployment": "FAIL",
    "evidence_reconstruction": "FAIL",
    "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": 6,
    "after_caps": 6,
    "ci_plus_minus": 15,
    "band": 1,
    "band_name": "Unaware"
  },
  "migration_stage": 0,
  "mosca_inequality": {
    "X_signature_shelf_life_years": "5-10 (declining — many users have withdrawn)",
    "Y_migration_time_years_range": "15+ (project effectively abandoned)",
    "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": 50,
      "privacy_preserved_pct": 40
    },
    "arrives_slowly_mid_migration": {
      "value_preserved_pct": 15,
      "privacy_preserved_pct": 15
    }
  },
  "burn_vs_rescue_policy": "undeclared",
  "pqc_washing_ratio": 1,
  "vendor_tile_summary": {
    "wallet": {
      "top3": [
        "Loopring Smart Wallet",
        "MetaMask",
        "Rabby"
      ],
      "pqc_roadmap_count": 0
    },
    "bridge": {
      "top3": [
        "Loopring Bridge",
        "limited third-party"
      ],
      "pqc_roadmap_count": 0
    },
    "custodian": {
      "top3": [
        "Limited institutional",
        "Fireblocks",
        "Self-custody"
      ],
      "pqc_roadmap_count": 0
    },
    "rpc_hsm": {
      "top3": [
        "Loopring RPC",
        "Ankr",
        "dRPC"
      ],
      "pqc_roadmap_count": 0
    }
  },
  "narrative_summary": "Loopring is a zkRollup DEX in terminal decline. Uses Groth16 over BN254 (pairing-based, Shor-breakable). Development effectively stalled since 2023. Binance delisting 2024+ reduced ecosystem support. Project lacks active coordination for any migration — crypto or otherwise. Band 1 Unaware. Failing/abandoned project — very low confidence.",
  "evaluator_notes": "Loopring is scored at the floor because the project lacks active governance to execute any migration. Historical technical merit (early zkRollup) is offset by present-day stall. Evidence gate fails due to sparse/stale public documentation.",
  "narrative_voiced": "Loopring was an early zkRollup DEX. It is now a stalled one, with a Groth16-over-BN254 prover that Shor breaks, development paused since 2023, a 2024 team wallet incident, and Binance delisting pressure. The scorecard floor is where projects without active governance end up, because no migration of any kind is coming."
}