With the escalating proliferation of artificial intelligence technologies, AI-generated content (AIGC) has progressively permeated across diverse domains. However, this explosive application has also sparked widespread public discussion about the copyright of AIGC. Existing copyright legal frameworks, originally designed around human creators, now face a paradigm shift. As human involvement in the generation of AIGC diminishes, where creative expression increasingly hinges on AI. This discrepancy has introduced multifaceted complexities and challenges in determining the copyright ownership of AIGC within established legal boundaries. Given this, meticulous recording and auditing of contributions from all parties in AIGC generation becomes imperative. Blockchain, with its decentralized storage, offers a robust technical foundation for AIGC copyright management. Yet existing blockchain-based solutions have clear limitations: most only focus on certifying final generated products, ignoring the management of critical intermediate data across the full lifecycle, thus failing to meet the needs of core scenarios like copyright confirmation and multi-party profit distribution. For this purpose, this paper introduces AIGC-Chain, a trustworthy AIGC copyright management system. It conducts a comprehensive recording of intermediate data generated across the full lifecycle of AIGC. Such data is deposited into a decentralized blockchain for secure multi-party auditing, thereby constructing a trustworthy management for AIGC copyright. In copyright dispute scenarios, auditors can retrieve critical proof from the blockchain, facilitating precise determination of the copyright ownership of AIGC products. Both theoretical and experimental analyses confirm that this scheme shows exceptional performance and security in AIGC copyright management.

翻译：随着人工智能技术的持续发展，AI生成内容（AIGC）已逐步渗透至各个领域。然而，这种爆发式应用也引发了公众对AIGC版权的广泛讨论。现有著作权法律框架最初围绕人类创作者设计，如今面临范式转变：在AIGC生成过程中，人类参与度逐渐降低，创意表达日益依赖AI。这种差异使得在既定法律框架内确定AIGC版权归属时，面临多重复杂性和挑战。因此，详细记录并审计AIGC生成过程中所有参与方的贡献变得至关重要。区块链以其去中心化存储特性，为AIGC版权管理提供了坚实的技术基础。然而，现有基于区块链的方案存在明显局限：多数方案仅关注最终生成产品的认证，忽略了全生命周期中关键中间数据的管理，因而难以满足版权确认、多方利润分配等核心场景需求。为此，本文提出AIGC-Chain——一个可信的AIGC版权管理系统。该系统对AIGC全生命周期内生成的中间数据进行全面记录，并将其存入去中心化区块链以实现安全的多方审计，从而构建可信的AIGC版权管理机制。在版权纠纷场景中，审计人员可从区块链中检索关键证据，协助精确判定AIGC产品的版权归属。理论与实验分析均表明，该方案在AIGC版权管理中表现出了卓越的性能与安全性。