NEXA Nexa Rank #1693

Nexa is a proof-of-work, UTXO-based Layer 1 blockchain that supports native tokens and smart contracts while being designed to scale for global peer-to-peer usage. The project addresses two of the most significant bottlenecks in blockchain scalability, signature verification and UTXO lookups, by offloading work to hardware rather than relying solely on software optimization. A key component of Nexa's design is Graphene, a block propagation protocol that uses Invertible Bloom Lookup Tables (IBLT) to compress blocks by roughly 99.6 percent, substantially reducing the network traffic required to distribute new blocks. The network also incorporates DS-Proof, a permissionless technology intended to enable instant transactions that do not need to wait for confirmations before being considered secure. Nexa is developed by Bitcoin Unlimited, a team of veteran software and blockchain architects with prior experience contributing to Bitcoin Cash. The project sits at the intersection of scalable Layer 1 infrastructure, smart contract capability, and a proof-of-work consensus model rooted in the UTXO tradition.