> For the complete documentation index, see [llms.txt](https://bitrexe.gitbook.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bitrexe.gitbook.io/docs/what-is-bitrexe/mining-hashrate-reusing.md).
# Mining - Hashrate Reusing
Hashrate reusing allows Bitcoin miners to mine simultaneously BRX on BitRexe with near zero marginal cost. This means that BitRexe pays additional transaction fees to incentivize merged miners to the following blocks to secure BitRexe Network:
Mature BTC Blocks on the main chain or forked ones with Proof-of-Work\
Premature BTC block that is unqualified for BTC difficulty, but is qualified for BitREXE difficulty\
BitREXE network.
**Independent chain growth and fork procedure unrelated to the Bitcoin network**
Bitcoin network is immutable to experiments on the BitRexe layer 2. Whether the experiments may lead to another blocksize war, an aggressive stablecoin issuance paradigm that can potentially grow the ledger size by 100 times, Bitcoin's vision remains the same.
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Notices: 50% of the $BRX will be distributed to merge miners since 2024, and last for 10 years. For more details, please refer to [$BRX Tokenomics](/docs/tokenomics/usdbrx.md).
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