PaperProof: Sui-Native Artifact Infrastructure for Durable, Verifiable, and Agent-Readable Knowledge Objects

Important digital works increasingly live across unstable boundaries: storage links, social feeds, repository releases, preprint pages, chat archives, and application databases. These surfaces are useful, but none of them alone provides a neutral and composable protocol identity for the work itself. PaperProof is a Sui-native protocol for durable, verifiable, and community-governed artifacts backed by Walrus content storage. It treats a work not as a single uploaded file, but as a continuing artifact series with typed versions, content commitments, official interaction objects, governance-aware parameters, and canonical events that can be consumed by applications, SDKs, indexers, and agentic interfaces. This paper presents PaperProof as artifact infrastructure rather than as a narrow publishing website. The protocol separates compact state from large content: Sui stores artifact identity, type state, version records, comments, likes, governance, fee configuration, prompt and memory capability registries, and events, while Walrus stores large content such as PDFs, datasets, source archives, software packages, images, long-form text, and prompt packages. The first official application is a static web app intended for low-maintenance deployment through Walrus Sites. Developer access is provided through role-specific TypeScript, Python, and Rust SDKs for frontend integration, scripting and analytics, and high-performance indexing. We describe the protocol model, on-chain object architecture, content binding, query and watch semantics, governance path, SDK ecosystem, and a browser-side agentic interface called PaperProof Copilot. Copilot uses protocol-native prompts stored as PaperProof artifacts and an optional wallet-linked memory layer whose public registry records only discovery and availability metadata while private memory remains outside PaperProof chain state. The design goal is not to replace academic archives, social platforms, repositories, or storage networks. Instead, PaperProof supplies a durable layer beneath and beside them: a verifiable identity and event surface for artifacts that should remain interpretable across frontends, market cycles, and organizational changes.