Ledgera Roadmap

Roadmap

Ledgera v_0_1 - 2025/09

System Assumptions

• Reliable network communications
• Correct users
• Single correct secure log node
• Byzantine fault tolerance threshold maintained across Ledgera and storage nodes

Features

• Core architeture
• Full lifecycle of storage requests implemented
• Full lifecycle of deterministic computation instances implemented:
  • for “single-user” computations i.e. computations which arguments are all provided in advance
  • also for “multi-user” computations i.e. computations of which some arguments may be left blank to be later proposed by other users
• Production, Verification and Audit by users of “Ledgera Proofs” (i.e. “Proof Of Storage” and/or “Proof Of Integrity”)
• basic Text User Interface (TUI)

Limitations

• Single secure log node (non-production ready)
• In-memory storage only (no persistent storage)
• Only used on a proof of concept toy use-case (string concatenation)

Ledgera v_0_2 - 2026/03

System Assumptions

• Same as Ledgera v_0_1.

Features

• Methods to handle floating point non-determinism
• System bootstrapping and CLI interface for the bootstrapping
• Extend configuration capabilities to install the preferred storage (it can include an external storage)
• Local trace/log file generation

Ledgera v_1_0 - 2026/09

• Code review, Testing
• Application on non-trivial use-cases

Ledgera v_1_1 - 2027/03

System Assumptions

• Review the assumption on reliable communications:
  • Is a fully connected topology necessary ?
  • If we do not have such a topology, how to ensure BFT communications ?

Features

• Coping with other sources of non-determinism: to be defined
• Auditable Read and Write operations (with only correct storage replicas)

Ledgera v_1_2 - 2027/09

Features

• Revocable Access Control
• Confidentiality of stored data