> For the complete documentation index, see [llms.txt](https://hub.bsvblockchain.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hub.bsvblockchain.org/wiki/standards-protocols-and-tools/building-on-bitcoin.md). # Building on Bitcoin 1. Introduction Bitcoin transactions enable the storage of any type of data on a public ledger providing the foundation layer for any, and all types of applications to be built on top of it. With a defined locked down protocol and immutable transactions, Bitcoin enables robust applications that can inter-operate with each other paving the way for limitless use-cases. Additionally, the flexible UTXO model of storing transactions paves the way for massive scale-ability, instilling confidence that the Bitcoin SV network can handle the transaction volume that robust applications require. 2. Popular tools * [Datapay](https://github.com/unwriter/datapay) - Simple JS library that enables broadcasting of Bitcoin transactions with as little as 4 lines of code * [Handcash connect](https://www.cashport.io/) - SDK that simplifies Bitcoin SV development. Supports payments, encryption, payments over time, authorisation, data ownership and more * [Paymail](https://github.com/bitcoin-sv-specs/brfc-paymail) - Protocol that defines how to send bitcoin to a human readable email like namespace instead of a Bitcoin address. * Contact the BSV Association to have your stable tool added. Further information about how to practically build on top of Bitcoin can be found here: #Bitcoin test blockchains #Bitcoin wallet libraries #The Metanet #BSVAlias #Application layer protocol #Advanced Bitcoin scripting #Payment channels --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://hub.bsvblockchain.org/wiki/standards-protocols-and-tools/building-on-bitcoin.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.