概要
SIPO DRepレビュー支援用の日本語作業訳です。正式な内容はHydra Voting上の英語原文を参照してください。
ChainPortは2022年11月からCardanoメインネットで流動性ゲートウェイとして運用されてきましたが、現状ではミントやリリース承認は十分に分散化されておらず、汎用クロスチェーンメッセージングも不足しています。Project Janusは、Mithrilを使ったSPOベースの分散検証ネットワーク、CIP-113/143に対応するCross-Chain Token標準、そして汎用クロスチェーンメッセージングを整備し、Cardanoのブリッジ信頼仮定を下げることを狙います。SIPOとしては、RWAやDeFiの基盤になり得る一方で、ブリッジは重大なセキュリティリスクを伴うため、検証者集合、監査、インシデント対応、既存ブリッジ提案との重複を精査する必要があります。
英語原文を表示
ChainPort has operated on Cardano mainnet since November 2022 as a primary liquidity gateway, but decentralized minting and release authorization is not live today, and the network still lacks generalized cross-chain messaging. Project Janus funds the architecture to change that. The Current State: ChainPort uses Federated MPC where trusted nodes authorize asset releases. Fireblocks resists external attack, but a small federation controls authorization. For Cardano to host mission-critical DeFi and RWA applications, this trust assumption must be removed. Pillar 1: The DVN replaces federated signing with a stake-based BFT quorum (>2/3) of Cardano SPOs. Mithril anchors outbound verification to Ouroboros itself, making Cardano-to-EVM trustless. Pillar 2: Cross-Chain Token (CCT) Standard. An open Plutus policy on CIP-113/143 supporting Burn-and-Mint and controlled Lock-and-Release. A single canonical policy eliminates wrapped-token fragmentation and honeypot risk. Pillar 3: Generalized Cross-Chain Messaging (GMP). A Mailbox-pattern layer enabling Cardano contracts to call functions on EVM chains, unlocking cross-chain governance, RWA synchronization, and one-click DeFi. Security: Five defensive layers: Mithril (outbound), DVN BFT (inbound), rate-limited circuit breakers, 98% cold storage, and independent monitors. Compromising one does not compromise the others. The Outcome: Janus decentralizes ChainPort's Cardano infrastructure. The DVN and CCT are published as open CIPs; governance transfers to a DAO treasury. This fulfills IntersectMBO's 2026 Critical Integrations mandate and positions Cardano as a secure, interoperable hub for RWA and DeFi. Janus complements other cross-chain providers, not competes. They rely on external validator networks. Janus anchors verification to Ouroboros via Mithril and a DVN of Cardano SPOs, and publishes the CCT standard as an open CIP any bridge can adopt. These are Cardano-native primitives external networks cannot provide.