NULLA | ꞤNulla is an experimental proof-of-work blockchain focused on strict consensus discipline, deterministic behavior, and restart-safe operation.
The project prioritizes correctness and simplicity over features, with a locked consensus surface and minimal protocol complexity. Nulla is currently running on a public testnet.
STATUS• Testnet live (v0.1.0-testnet)
• Proof-of-Work
• No wallet yet (by design)
• Solo mining only
DESIGN GOALS• Locked Consensus: Genesis, emission schedule, difficulty rules, and validation paths are fixed and fully specified.
• Heaviest-Work Fork Choice: Deterministic chain selection with explicit work calculation.
• Restart-Safe Operation: Full persistence of headers and block bodies with automatic recovery.
• Minimal Surface Area: No contracts, no VM, no hidden protocol flags.
• Fair PoW Emissions: Tail emission v1 for long-term security budget.
• Testability First: Byte-exact PoW vectors, deterministic validation, and reproducible behavior.
TECHNICAL OVERVIEW• Proof-of-Work with strict header validation
• Median-Time-Past (MTP) timestamp rules
• Difficulty adjustment with enforced clamp
• Header-first P2P sync (TCP)
• Best-chain-only block download
• Non-consensus policy layer (reorg cap, peer scoring)
WHAT IS INTENTIONALLY MISSING• Wallet UI
• Mining pools / Stratum
• Exchanges
• Smart contracts
These will only be added after testnet stability and external review.
SOURCE CODEhttps://github.com/p-stanchev/NullaTESTNETTag: v0.1.0-testnet
Nodes can be run locally; see README for instructions, configuration flags, and testnet notes.
MINING• Solo mining only
• Reference miner included in node
• Pools not yet implemented
FEEDBACKThis project is looking for:
• Testnet participants
• PoW miners
• Protocol reviewers
• Feedback on consensus and networking behavior
Technical discussion and criticism are welcome.
DISCLAIMERNulla is experimental software. This is a testnet release. There is no promise of mainnet, value, or exchange listing.
