XIM：XDC 跨账本消息协议

中文摘要 AI 辅助

分布式账本、隐私保护机构网络和传统支付系统日益需要在异构信任域之间交换认证消息并结算资产。现有的互操作系统通常针对以下三个关注点之一进行优化：应用层抽象、跨链消息传输或相关账本家族内的同步执行。本文提出了 XIM，即 XDC 跨账本消息协议，这是一种与链无关的协议，用于在异构网络之间传输规范消息，同时允许每个通信通道选择明确的验证策略。XIM 将消息语义与传输、验证、执行、路由、资产身份和合规元数据分离。其密码学状态由确定性消息标识符和承诺根表示，而仅追加的转换日志提供可审计性和重放保护。XIM 引入了通用资产标识符（UAID）、可插拔适配器接口、通道范围的安全策略以及用于多跳结算的可选策略感知路由图。XDC 网络可以作为协调和结算域，而无需每条 XIM 消息或路由都通过 XDC 进行交易。我们详细说明了协议模型、状态机、消息编码、承诺结构、验证模式、失败语义、安全假设、威胁模型、实现架构和增量部署计划。该设计面向公共区块链、许可账本、机构网络和经过认证的金融系统网关，特别关注稳定币、代币化资产、贸易融资和符合 ISO 20022 的支付工作流。

英文摘要

Distributed ledgers, privacy-preserving institutional networks, and conventional payment systems increasingly need to exchange authenticated messages and settle assets across heterogeneous trust domains. Existing interoperability systems typically optimize for one of three concerns: application-level abstraction, cross-chain message transport, or synchronized execution within a related ledger family. This paper proposes XIM, the XDC Interledger Messaging Protocol, a chain-agnostic protocol for transporting canonical messages across heterogeneous networks while allowing each communication lane to select an explicit verification policy. XIM separates message semantics from transport, verification, execution, routing, asset identity, and compliance metadata. Its cryptographic state is represented by deterministic message identifiers and commitment roots, while an append-only transition log provides auditability and replay protection. XIM introduces a Universal Asset Identifier (UAID), a pluggable adapter interface, lane-scoped security policies, and an optional policy-aware route graph for multi-hop settlement. XDC Network can serve as a coordination and settlement domain without requiring every XIM message or route to transact through XDC. We specify the protocol model, state machine, message encoding, commitment structure, verification modes, failure semantics, security assumptions, threat model, implementation architecture, and an incremental deployment plan. The design targets public blockchains, permissioned ledgers, institutional networks, and authenticated financial-system gateways, with particular attention to stablecoins, tokenized assets, trade finance, and ISO 20022-compatible payment workflows.

发表机构

• XDC Network Research and Engineering（XDC网络研究与工程部）

机构由 AI 辅助整理，请以论文原文为准。