Abstract. BitcoBoost (ticker BCBO) is an independent, native Proof-of-Work cryptocurrency derived from the Bitcoin Core codebase. It uses the X16RV2 hashing algorithm to keep mining accessible to CPUs and consumer GPUs, targets a ten-minute block interval, and enforces a fixed maximum supply of 21,011,000 BCBO. There was no premine, no initial coin offering and no presale: every coin is issued through mining according to a transparent, deterministic schedule. The network is live, its full-node software and block explorer are public, and its source code is open. This paper documents the design, parameters and security assumptions of the network as deployed.
Bitcoin demonstrated that a fixed-supply, Proof-of-Work currency can be secured without a central issuer. Over time, however, Bitcoin mining has concentrated around specialised ASIC hardware, placing block production out of reach of ordinary participants. BitcoBoost keeps Bitcoin's monetary discipline — a hard cap, halving-based issuance, permissionless participation — while choosing a hashing algorithm that remains practical to mine on general-purpose CPUs and consumer graphics cards. The goal is a fair-launch network that anyone can help secure with hardware they already own.
BitcoBoost is a standalone Layer-1 blockchain. It is not a token on another chain; BCBO is the native coin of its own network. The reference implementation, BitcoBoost Core, is a full node derived from Bitcoin Core and speaks a Bitcoin-style peer-to-peer and JSON-RPC protocol. This lineage is deliberate: it inherits Bitcoin's well-reviewed transaction validation, UTXO model, script system and wallet infrastructure, and makes third-party integration straightforward for anyone who has integrated Bitcoin.
BitcoBoost uses Nakamoto consensus: the valid chain is the one with the greatest cumulative Proof-of-Work. Blocks are produced by miners who repeatedly hash candidate block headers until one meets the current difficulty target. Transactions follow Bitcoin's UTXO model and the same standard validation rules. To protect early history on a young, low-hashrate network, the reference node ships hard-coded checkpoints (block hashes compiled into the source and distributed through verifiable releases); blocks below the most recent checkpoint are not subject to reorganisation. Governance, limits and how to disable them are documented in the Checkpoint Security Model.
Blocks are secured with X16RV2, a chained hashing algorithm that applies sixteen distinct cryptographic hash functions in an order determined by recent block data, with a variant step that further discourages fixed-function ASIC optimisation. Compared with Bitcoin's SHA-256d, X16RV2 is far more balanced across CPUs and GPUs, which supports BitcoBoost's fair-access goal. Mining is performed with standard, widely-available X16RV2 miners.
The target block interval is 600 seconds (ten minutes). Block templates are assembled from the mempool following Bitcoin's fee-priority rules and standard weight limits. The coinbase transaction pays the block subsidy plus fees to the miner, and — during the founder-reward window (§7) — a fixed protocol share to the project address. Coinbase outputs are spendable only after 100 confirmations (coinbase maturity).
BitcoBoost has a fixed maximum supply of 21,011,000 BCBO, denominated to eight decimal places (1 BCBO = 100,000,000 base units). Issuance is deterministic and enforced by consensus. The base block subsidy is 50 BCBO, halving every 210,000 blocks (approximately four years), mirroring Bitcoin's schedule. A brief slow-start ramp applied to the earliest blocks:
| Blocks 1 – 1,000 | 1 BCBO per block |
|---|---|
| Blocks 1,001 – 2,000 | 10 BCBO per block |
| Blocks 2,001 onward | 50 BCBO per block, halving every 210,000 blocks |
The slow start reduced early issuance while the network bootstrapped. The total circulating supply at any time is derived directly from this schedule and is independently verifiable against the node; it is published live at /api/v1/supply.
Each block subsidy is split between the miner and, for a bounded early period, the project:
| Miner reward | 47.5 BCBO (95% of the 50 BCBO subsidy) |
|---|---|
| Project reward | 2.5 BCBO (5% of the subsidy) |
| Project-reward window | blocks 2,001 – 209,999 only (~4 years); zero thereafter |
| Project address | bb1q0rfr4ges48ruh8ej8fup65d65mfp3alvn2rhna |
The 5% project reward funds ongoing development and operations of the network. It is not a premine: these coins are mined block-by-block like any other, are fully visible on-chain, and stop entirely at block 210,000. The project address is controlled by Primaris Group S.r.l.s. and is auditable at any time on the block explorer.
Mining difficulty retargets every 2,016 blocks (approximately two weeks at the target interval), using Bitcoin's timespan-based adjustment, so that average block time converges to ten minutes as total network hashrate varies.
BitcoBoost inherits Bitcoin's UTXO transaction model and Script. Addresses are available in native SegWit bech32 form (recommended) and legacy base58 form:
| Bech32 (SegWit) | human-readable part bb → bb1… |
|---|---|
| Legacy P2PKH | version byte 25 → addresses beginning with B |
| Legacy P2SH | version byte 85 |
| WIF private key | version byte 153 |
The reference node, bitcoboostd, with its command-line client bitcoboost-cli and configuration file bitcoboost.conf, provides full validation, wallet, mempool and JSON-RPC services. Peers connect on the mainnet P2P port 38210; the network magic bytes are 0xBB 0x16 0x06 0x26. DNS seeds and public seed nodes bootstrap peer discovery. Because the protocol is Bitcoin-compatible, exchanges and services integrate BCBO using standard Bitcoin-RPC workflows (see the Exchange Integration Guide).
Anyone can mine BitcoBoost. Two paths are supported: solo mining against a local node, and pool mining via a public Stratum endpoint for participants with lower individual hashrate. A free desktop miner is available for Windows, and the network is additionally secured by independent external miners and mining farms. Because X16RV2 is CPU- and GPU-friendly, no specialised hardware is required to participate.
BitcoBoost's security rests on the standard Nakamoto assumption that honest participants control the majority of hashrate. As a young network, its total hashrate is smaller than that of established chains, which increases the theoretical cost-effectiveness of a temporary majority-hashrate ("51%") attack. Three factors mitigate this: (1) hard-coded checkpoints in the reference node (see the Checkpoint Security Model) finalise history below the latest checkpoint, preventing deep reorganisation of confirmed blocks; (2) a growing and geographically distributed set of independent miners; and (3) integration guidance recommending conservative confirmation counts for value transfers. Participants and exchanges should size confirmations to their own risk tolerance (see §16).
Total issuance follows the subsidy schedule of §6 and asymptotically approaches — but never exceeds — 21,011,000 BCBO as successive halvings reduce the subsidy toward zero. No mechanism can create coins outside this schedule. Live values for blocks mined, circulating supply and remaining supply are published at /api/v1/supply and are recomputable by anyone from the chain.
BitcoBoost was fair-launched. There was no premine (no block allocated coins to insiders ahead of public mining), no initial coin offering, and no presale. The only protocol-level allocation is the transparent, time-bounded 5% project reward described in §7, which is mined block-by-block and ends at block 209,999 (the first subsidy halving follows at block 212,001).
Development is led by Primaris Group S.r.l.s. (Torino, Italy). The source code is public and open; protocol changes are published as tagged releases of BitcoBoost Core with documented minimum-supported versions. Node operators adopt consensus-relevant changes by upgrading, in the same manner as other Bitcoin-derived networks.
BitcoBoost is experimental open-source software. Mining and holding BCBO carry risk. The value of any cryptocurrency is volatile and may fall to zero. A young network has lower hashrate and therefore higher exposure to majority-hashrate attacks than a mature one. Users control their own keys: lost keys mean lost coins, and no party — including Primaris Group — can restore them. Nothing in this document is investment advice, a promise of exchange listing, or a promise of value or return.
BitcoBoost Core is derived from Bitcoin Core and is distributed under the MIT License, retaining the upstream copyright notices and attributions. Third-party components (including mining software and the block explorer) retain their respective open-source licenses.
| Name / ticker | BitcoBoost / BCBO |
|---|---|
| Consensus / algorithm | Proof of Work / X16RV2 |
| Max supply | 21,011,000 BCBO |
| Block reward (base) | 50 BCBO (47.5 miner + 2.5 project, blocks 2,001–209,999) |
| Halving interval | 210,000 blocks (~4 years) |
| Block time target | 600 s |
| Difficulty retarget | every 2,016 blocks |
| Coinbase maturity | 100 blocks |
| Decimals | 8 |
| P2P port / magic | 38210 / 0xBB160626 |
| Bech32 HRP | bb |
| Genesis hash | 00008e92cdd72d798964ea9833c612371e93ddbcbb6a8a1ffe71e591f5b017df |
| Premine / ICO / presale | none |
| Explorer | explorer.bitcoboost.com |
| Source | github.com/Bitcoboost/bitcoboost-core |
| Live APIs | /api/v1/coin · /api/v1/network · /api/v1/supply |