What’s the NEXA Cryptocurrency?

NEXA is a Proof-of-Work cryptocurrency built by the team behind Bitcoin Unlimited, designed around one central bet: that a UTXO Layer-1 chain can scale to global payment volumes. It runs on its own open-source blockchain with a two-minute block time, GPU-oriented mining on the NexaPow algorithm, and native support for tokens and NFTs. This article covers how it works, how it is mined and stored — and what remains a design goal rather than a delivered fact.

Key Takeaways

• NEXA is a UTXO Layer-1 PoW chain from the Bitcoin Unlimited team, with ~2-minute blocks, native tokens/NFTs, and a smart-contract system — architecturally a Bitcoin Cash descendant built for scale
• Mining runs on NexaPow — a custom GPU-oriented algorithm whose work includes computing Schnorr signatures on secp256k1. It is not ProgPow and not plain SHA-256; cards with 4+ GB VRAM participate, and miners like BzMiner or WildRig support it
• The block reward is currently 5 million NEXA per block, halving by 50% every 1,050,000 blocks
• NEXA is a small-cap, high-risk asset: exchange support is thin and changes often, liquidity is low, and the headline scalability numbers are design goals of the project, not delivered production metrics

NEXA Overview

NEXA is an open-source cryptocurrency developed by Bitcoin Unlimited Incorporated, registered on the Isle of Man — the organization known for its role in the big-block scaling movement and Bitcoin Cash (the Bitcoin fork launched August 1, 2017). NEXA borrows innovations from the Bitcoin Cash lineage but runs on its own blockchain.

Where to trade it changes frequently for a coin this size — listings appear and disappear. Rather than naming specific exchanges, check current markets on an aggregator (CoinGecko or CoinMarketCap show live venues and volumes) and verify liquidity before trading: for small-cap coins, thin order books and delistings are normal operating conditions.

Don’t confuse the NEXA coin with the NXG token of the unrelated “NEXA Global Foundation” platform.

How NEXA Mining Works: NexaPow

NEXA is mined on NexaPow — the project’s own Proof-of-Work algorithm, designed to favor GPUs. Its distinctive feature is that the mining work itself involves computing Schnorr signatures on the secp256k1 elliptic curve (the same curve Bitcoin uses for its signatures): elliptic-curve operations are computationally heavy, which is what anchors the algorithm to capable general-purpose hardware. The design intent is deliberate — the project argues that as hardware for signature generation and verification improves to serve miners, the same capability lifts the network’s ability to verify transactions, attacking one of the classic scalability bottlenecks.

Block Time and Reward

The network targets a block approximately every two minutes. The current block subsidy is 5 million NEXA, following Nexa’s first halving after block 1,050,000. Under the network’s Bitcoin-like issuance model, the subsidy is reduced by 50% every 1,050,000 blocks, which corresponds to approximately four years at the target block interval.

The first halving reduced the subsidy from 10 million to 5 million NEXA per block. This lowered the amount of newly issued NEXA and reduced the subsidy component of mining revenue, although miners’ actual results also depend on network difficulty, hashrate, transaction fees, pool terms, and the market price of NEXA.

NEXA Coin Features

Scalability by Design

The project’s stated design goal is capacity beyond 10 billion transactions per day, achieved by removing bottlenecks in bandwidth, storage, and node computation — including block-compression technologies from the big-block lineage. Fees are designed to stay low. Two calibrations belong here: these are design targets and architectural arguments, not delivered production throughput — actual network usage is orders of magnitude below these ceilings; and “without any fees” overstates it — transactions carry fees, they are simply designed to be minimal.

Native Tokens and NFTs

NEXA supports tokens natively — no ERC-20-style contract standards required — while still offering smart-contract power when needed. Users can create fungible tokens and NFTs for digital art, asset ownership, ticketing, in-game items, and certificates.

Smart Contracts

NEXA’s contract system aims to deliver most capabilities found on EVM chains without the scalability bottlenecks typical of fully Turing-complete networks — trading some generality for throughput.

Fast Transactions

Transactions propagate across the network in under a second, and NEXA (like its Bitcoin Cash lineage) leans on 0-conf acceptance for low-value payments — merchants can act on a broadcast transaction before it is mined, at their own risk tolerance. Full confirmation still arrives with block inclusion (~2 minutes) and deepens from there; “instant and trustless for any amount” remains a roadmap item, not a shipped guarantee.

NEXA Wallet

NEXA can be stored in several self-custodial wallets listed through the project’s official ecosystem. Users who want to run a full node can install Nexa Full Node for Windows, macOS, Linux, or ARM. Because it downloads and verifies blockchain data locally, this option requires sufficient disk space and may take time to synchronize.

For a lighter setup, Wally Wallet is available on iOS and Android and can be used without downloading the full blockchain. The Nexa ecosystem also lists Otoplo Wallet, including a browser-based version.

Whichever wallet you choose, download it only through the official Nexa website or verified app-store links. Back up the wallet using the recovery method provided by the application, then create a NEXA receiving address. This address can be entered as the payout destination for a mining pool or used to receive NEXA withdrawn from a supported exchange.

NEXA: Architecture and Open Questions

NEXA operates on a UTXO model, like Bitcoin: value moves as discrete units between addresses and contracts, in contrast to Ethereum’s account model. UTXO architectures parallelize validation naturally and are easier to audit at the transaction level — genuine engineering advantages for Layer-1 scaling.

The project’s long-term thesis is that specialized hardware will progressively remove the two classic bottlenecks — signature verification (via the same hardware trajectory NexaPow incentivizes) and UTXO lookups (via fast dedicated storage) — eventually supporting on the order of 100,000 transactions per second at Layer 1. Treat this as the project’s roadmap argument: technically coherent, but a bet on future hardware and adoption, not a property the network exhibits today. What is verifiable now: NEXA is a small-capitalization asset with modest network hashrate and thin markets — the risk profile of an early-stage project, whatever its architecture promises.

FAQ

How does NEXA work?

NEXA is a UTXO Proof-of-Work blockchain mined on the NexaPow algorithm — a GPU-oriented design built around Schnorr-signature computation on secp256k1 — with ~2-minute blocks, native tokens, and smart contracts.

How do I get NEXA?

Two main routes: mine it with a graphics card (4+ GB VRAM, NexaPow-capable miner software, a pool of your choice) or buy it on an exchange that currently lists it.

Where can I buy NEXA?

Listings for small-cap coins change often — check the current list of active markets and their volumes on CoinGecko or CoinMarketCap, and prefer venues with real liquidity. Verify withdrawal support before depositing funds.

What is the NEXA blockchain?

A UTXO Layer-1 platform designed for high-throughput, low-fee transactions, mined on NexaPow, with native token and smart-contract support.