BlockId should not implement Anchor
If `BlockId` implements `Anchor`, the meaning is ambiguous. We cannot tell whether it means the tx is anchors at the block, or whether it also means the tx is confirmed at that block. Instead, `ConfirmationHeightAnchor` and `ConfirmationTimeAnchor` structs are introduced as non-ambiguous `Anchor` implementations. Additionally, `TxGraph::relevant_heights` is removed because it is also ambiguous. What heights are deemed relevant? A simpler and more flexible method `TxGraph::all_anchors` is introduced instead.
The Bitcoin Dev Kit
BDK
A modern, lightweight, descriptor-based wallet library written in Rust!
Project Homepage | Documentation
About
The bdk libraries aims to provide well engineered and reviewed components for Bitcoin based applications.
It is built upon the excellent rust-bitcoin and rust-miniscript crates.
⚠ The Bitcoin Dev Kit developers are in the process of releasing a
v1.0which is a fundamental re-write of how the library works. See for some background on this project: https://bitcoindevkit.org/blog/road-to-bdk-1/ (ignore the timeline 😁) For a release timeline see thebdk_core_stagingrepo where a lot of the component work is being done. The plan is that everything in thebdk_core_stagingrepo will be moved into thecratesdirectory here.
Architecture
The project is split up into several crates in the /crates directory:
bdk: Contains the central high levelWallettype that is built from the low-level mechanisms provided by the other componentschain: Tools for storing and indexing chain datafile_store: A (experimental) persistence backend for storing chain data in a single file.esplora: Extends theesplora-clientcrate with methods to fetch chain data from an esplora HTTP server in the form that [bdk_chain] andWalletcan consume.electrum: Extends theelectrum-clientcrate with methods to fetch chain data from an electrum server in the form that [bdk_chain] andWalletcan consume.
Fully working examples of how to use these components are in /example-crates