Nexa is a proof-of-work, UTXO Layer-1 Blockchain, with native tokens and smart contracts, that has the ability to scale for global P2P usage. By utilizing hardware to scale, Nexa removes two of the most important bottlenecks for scalability: Signatures and UTXO lookups. Nexa employs technologies such as: Graphene, a new block propagation protocol that leverages the benefits of Invertible Bloom Lookup Tables (IBLT) to compress blocks by 99.6 percent and make block distribution more efficient by reducing network traffic overhead. DS-Proof is a permission-less technology to allow for instant transactions which don't require confirmations. The team behind Nexa is Bitcoin Unlimited, who are veteran software and blockchain architects previously involved with Bitcoin Cash.