38 lines
2.2 KiB
Markdown
38 lines
2.2 KiB
Markdown
CosmicLedger MVP
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Overview
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- A minimal, offline-first verifiable ledger designed for partitioned networks (e.g., interplanetary missions).
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- Local append-only ledger with cryptographic signatures, Merkle-DAG proofs, and delta-based reconciliation.
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- A simple Data Contracts Registry to define and version mission data schemas (Telemetry, SensorData, Event, Command, Hazard).
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- Delta export/import to synchronize logs between nodes with compact proofs.
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- Optional cloud-ground anchoring concept (not implemented in this MVP).
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What you can run here
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- A tiny Python package that provides: LocalLedger, DeltaLog, DataContractRegistry, and a tiny Signer using HMAC.
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- test.sh script to build and run a basic cross-node delta replication scenario with two ledgers using the same signer key.
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How to use (high level)
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- Create a LocalLedger with a node-specific signer key.
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- Register data contracts (Telemetry, SensorData, Event, Command, Hazard).
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- Append entries to the local ledger.
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- Export a delta since a given index and apply it on another ledger to reconcile.
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- Compute Merkle roots to verify log integrity.
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Notes
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- This is an MVP; cryptographic signing uses HMAC for simplicity in this prototype. In a production setting, you'd replace with Ed25519 or ECDSA and proper key management.
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- No external network code is included; delta exchange is simulated via in-process data structures for MVP validation.
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Contributing
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- See AGENTS.md for architectural rules and testing protocol.
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License: MIT
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Improvements (Post-MVP Goals)
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- Cloud anchoring: Optional anchoring of log roots to a trusted ground anchor for long-term verifiability across partitions.
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- Governance ledger: Lightweight event-sourced log for data-access decisions, policy changes, and contract amendments.
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- Delta proofs: Plan to extend delta exports to include compact Merkle proofs for selective entry verification.
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- Interoperability bridges: Start mapping core primitives to canonical data schemas for ecosystem interoperability.
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- Observability: Instrumentation for proof sizes, reconciliation latency, and data-integrity guarantees.
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READY_TO_PUBLISH marker is created when this MVP is deemed production-ready in a real SWARM build.
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