Own your chain. Anchor it to a shared global ledger.
NABD gives people, institutions, and builders a way to operate their own chain while keeping a shared root record for proof, fairness, and long-term trust.
A chain you own is only useful if it stays alive.
Owning a settlement layer has usually meant one of two bad trades:
rent trust from a platform, or staff a datacenter. NABD exists to
remove that trade. Its consensus layer, NabdBFT, finalizes each
block through four deterministic phases (PROPOSE,
VOTE, CERTIFY, COMMIT) under
a strict two-thirds quorum, in about a second on shared two-vCPU
machines. It recovers from a crashed leader in about three. That
means a community, company, school, or cooperative can operate its
own ledger with the resilience of a much larger system.
Ownership without isolation: chains in the NABD model keep a shared root record, so proofs, fairness guarantees, and long-lived commitments stay publicly verifiable while the economy on top remains yours to govern.
Practical finality
Blocks finalize deterministically under a strict two-thirds quorum, at a measured mean of 1.214 seconds on the live testnet. Settlement is a fact, not a probability.
Live recovery
A heartbeat subsystem watches every validator continuously and replaces a dead leader in about 3.3 seconds, three to ten times faster than reactive BFT protocols such as PBFT, Tendermint, and HotStuff.
Accountable approval
Treasury moves, governance changes, and program actions can require live human authorization, recorded on chain as signed policy effects while biometric data stays off it.
A shared root record
Operating your own chain doesn't mean going dark. The shared record keeps proofs and commitments verifiable by anyone, for as long as they matter.