btc-utils is a utility library that aims to provide helper functions for bitcoin transactions.

• Dependency-free, as far as possible
• Easy to read and understand, provide links to corresponding information in the code whenever possible

• @c4/btc-utils:

  • estimateTransactionVSizeAfterSign: helps to estimate the virtual size (vSize) of a bitcoin transaction before users sign it Check out the unit tests for more details

  • getOutputDustThreshold: helps to determine the minimum amount of Bitcoin per output in a bitcoin transaction Check out the unit tests for more details

• @c4/btc-utils/estimationInputShortcuts: provides shortcuts of several common input types for estimation, checkout the unit tests for usages

• @c4/btc-utils/btcSignerHelpers:

  • estimateInputVSizeAfterSign_2: use @scure/btc-signer to estimate input size and return EstimationInput type data Check out the unit tests for more details
  • estimateInputVSizeAfterSign (Deprecated): use @scure/btc-signer to estimate input size Check out the unit tests for more details