# Jonathan Bier - Bitcoin’s Initial Block Download (Highlights)

## Metadata
**Cover**:: https://readwise-assets.s3.amazonaws.com/static/images/article2.74d541386bbf.png
**Source**:: #from/readwise
**Zettel**:: #zettel/fleeting
**Status**:: #x
**Authors**:: [[Jonathan Bier]]
**Full Title**:: Bitcoin’s Initial Block Download
**Category**:: #articles #readwise/articles
**Category Icon**:: 📰
**Document Tags**:: #bitcoin #blockchain #performance
**URL**:: [blog.bitmex.com](https://blog.bitmex.com/bitcoins-initial-block-download/)
**Host**:: [[blog.bitmex.com]]
**Highlighted**:: [[2020-02-15]]
**Created**:: [[2022-09-26]]
## Highlights
- libsecp256k enabled
- does not validate signatures for transaction inputs where the witness is segregated