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37a5c5d836doc: update descriptors.md for getdescriptoractivity (James O'Beirne)ee3ce6a4f4test: rpc: add no address case for getdescriptoractivity (James O'Beirne)811f76f3a5rpc: add getdescriptoractivity (James O'Beirne)25fe087de5rpc: move-only: move ScriptPubKeyDoc to utils (James O'Beirne) Pull request description: The RPC command `scanblocks` provides a useful way to get a set of blockhashes that have activity relevant to a set of descriptors (`relevant_blocks`). However actually extracting the activity from those blocks is left as an exercise to the end user. This process involves not only generating the (potentially ranged) set of scripts for the descriptor set on the client side (maybe via `deriveaddresses`), but then the user must retrieve each block's contents one-by-one using `getblock <hash>`, which is transmitted over a network link. And that's all before they perform the actual search over block content. There's even more work required to incorporate unconfirmed transactions. This PR introduces an RPC `getdescriptoractivity` that [dovetails](https://bitcoin-irc.chaincode.com/bitcoin-core-dev/2024-08-16#1046393;) with `scanblocks` output, handling the process described above. Users specify the blockhashes (perhaps from `relevant_blocks`) and a set of descriptors; they are then given all spend/receive activity in that set of blocks. This is a very useful tool when implementing lightweight wallets that want neither to require a third-party indexer like electrs, nor the overhead of creating and managing watch-only wallets in Core. This allows Core to be more easily used in a "stateless" manner by wallets, with potentially many nodes interchangeably acting as backends. ### Example usage ``` % ./src/bitcoin-cli scanblocks start \ '["addr(bc1p0cp0vyag6snlta2l7c4am3rue7eef9f72l7uhx52m4v27vfydx9s8tfs7t)"]' \ 857263 { "from_height": 857263, "to_height": 858263, "relevant_blocks": [ "00000000000000000002bc5cc78f5b0913a5230a8f4b0d5060bc9a60900a5a88", "00000000000000000001c5291ed6a40c06d3db5c8fb738567654b24a14b24ecb" ], "completed": true } % ./src/bitcoin-cli getdescriptoractivity \ '["00000000000000000002bc5cc78f5b0913a5230a8f4b0d5060bc9a60900a5a88", "00000000000000000001c5291ed6a40c06d3db5c8fb738567654b24a14b24ecb"]' \ '["addr(bc1p0cp0vyag6snlta2l7c4am3rue7eef9f72l7uhx52m4v27vfydx9s8tfs7t)"]' { "activity": [ { "type": "receive", "amount": 0.00002900, "blockhash": "00000000000000000002bc5cc78f5b0913a5230a8f4b0d5060bc9a60900a5a88", "height": 857907, "txid": "c9d34f202c1f66d80cae76f305350f5fdde910b97cf6ae6bf79f5bcf2a337d06", "vout": 254, "output_spk": { "asm": "1 7e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b", "desc": "rawtr(7e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b)#yewcd80j", "hex": "51207e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b", "address": "bc1p0cp0vyag6snlta2l7c4am3rue7eef9f72l7uhx52m4v27vfydx9s8tfs7t", "type": "witness_v1_taproot" } }, { "type": "spend", "amount": 0.00002900, "blockhash": "00000000000000000001c5291ed6a40c06d3db5c8fb738567654b24a14b24ecb", "height": 858260, "spend_txid": "7f61d1b248d4ee46376f9c6df272f63fbb0c17039381fb23ca5d90473b823c36", "spend_vin": 0, "prevout_txid": "c9d34f202c1f66d80cae76f305350f5fdde910b97cf6ae6bf79f5bcf2a337d06", "prevout_vout": 254, "prevout_spk": { "asm": "1 7e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b", "desc": "rawtr(7e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b)#yewcd80j", "hex": "51207e02f613a8d427f5f55ff62bddc47ccfb394953e57fdcb9a8add58af3124698b", "address": "bc1p0cp0vyag6snlta2l7c4am3rue7eef9f72l7uhx52m4v27vfydx9s8tfs7t", "type": "witness_v1_taproot" } } ] } ``` ACKs for top commit: instagibbs: reACK37a5c5d836achow101: ACK37a5c5d836tdb3: Code review and light retest ACK37a5c5d836rkrux: re-ACK37a5c5d836Tree-SHA512: 04aa51e329c6c2ed72464b9886281d5ebd7511a8a8e184ea81249033a4dad535a12829b1010afc2da79b344ea8b5ab8ed47e426d0bf2eb78ab395d20b1da8dbb
Bitcoin Core
Setup
Bitcoin Core is the original Bitcoin client and it builds the backbone of the network. It downloads and, by default, stores the entire history of Bitcoin transactions, which requires several hundred gigabytes or more of disk space. Depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to several days or more.
To download Bitcoin Core, visit bitcoincore.org.
Running
The following are some helpful notes on how to run Bitcoin Core on your native platform.
Unix
Unpack the files into a directory and run:
bin/bitcoin-qt(GUI) orbin/bitcoind(headless)
Windows
Unpack the files into a directory, and then run bitcoin-qt.exe.
macOS
Drag Bitcoin Core to your applications folder, and then run Bitcoin Core.
Need Help?
- See the documentation at the Bitcoin Wiki for help and more information.
- Ask for help on Bitcoin StackExchange.
- Ask for help on #bitcoin on Libera Chat. If you don't have an IRC client, you can use web.libera.chat.
- Ask for help on the BitcoinTalk forums, in the Technical Support board.
Building
The following are developer notes on how to build Bitcoin Core on your native platform. They are not complete guides, but include notes on the necessary libraries, compile flags, etc.
- Dependencies
- macOS Build Notes
- Unix Build Notes
- Windows Build Notes
- FreeBSD Build Notes
- OpenBSD Build Notes
- NetBSD Build Notes
Development
The Bitcoin repo's root README contains relevant information on the development process and automated testing.
- Developer Notes
- Productivity Notes
- Release Process
- Source Code Documentation (External Link)
- Translation Process
- Translation Strings Policy
- JSON-RPC Interface
- Unauthenticated REST Interface
- BIPS
- Dnsseed Policy
- Benchmarking
- Internal Design Docs
Resources
- Discuss on the BitcoinTalk forums, in the Development & Technical Discussion board.
- Discuss project-specific development on #bitcoin-core-dev on Libera Chat. If you don't have an IRC client, you can use web.libera.chat.
Miscellaneous
- Assets Attribution
- bitcoin.conf Configuration File
- CJDNS Support
- Files
- Fuzz-testing
- I2P Support
- Init Scripts (systemd/upstart/openrc)
- Managing Wallets
- Multisig Tutorial
- Offline Signing Tutorial
- P2P bad ports definition and list
- PSBT support
- Reduce Memory
- Reduce Traffic
- Tor Support
- Transaction Relay Policy
- ZMQ
License
Distributed under the MIT software license.