We propose a new approach, termed Hybrid DLT, to address a broad range of industrial use cases where certain properties of both private and public DLTs are valuable, while other properties may be unnecessary or detrimental. The Hybrid DLT approach involves a system where private ledgers, with limited data block dissemination, are collaboratively created by nodes within a private network. The Notary, a publicly auditable authoritative component, maintains a single, official, coherent history for each private ledger without requiring access to data blocks. This is achieved by leveraging a public DLT solution to render the ledger histories tamper-proof, consequently providing tamper-evidence for ledger data disclosed to external actors. We present Traent Hybrid Blockchain, a commercial implementation of the Hybrid DLT approach: a real-time, data-intensive collaboration system for organizations seeking immutable data while also needing to comply with the European General Data Protection Regulation (GDPR).

翻译：我们提出一种名为"混合分布式账本技术"（Hybrid DLT）的新方案，以解决广泛的工业应用场景中，私有与公有分布式账本技术部分特性具有价值、而其他特性可能冗余或有害的问题。该方案构建的系统允许私有网络中的节点协作创建数据块分发范围受限的私有账本，同时通过"公证人"（Notary）这一可公开审计的权威组件，在无需访问数据块的前提下，为每条私有账本维护唯一且连贯的官方历史记录。其核心机制在于利用公有DLT解决方案确保账本历史防篡改，进而为向外部实体披露的账本数据提供篡改可证明性。本文展示了Hybrid DLT方案的商业实现——Traent混合区块链：一个面向寻求数据不可篡改性且需符合《欧盟通用数据保护条例》（GDPR）的组织打造的实时、数据密集型协作系统。