# BSV and Digital Signatures

This course introduces how the **BSV blockchain (BSV)** uses digital signatures, powered by the **Elliptic Curve Digital Signature Algorithm (ECDSA)** on the **secp256k1 curve**, to secure its network.

You will explore:

* How digital signatures protect **BSV transactions**, proving ownership and authorization.
* The role of **signed messages**, enabling users to prove authorship outside of the blockchain.
* How **miner identification** works as an optional way for miners to sign and verify their contributions.

By the end of the course, learners will:

* Understand how digital signatures function within the BSV system.
* Recognize the three key contexts where they are applied: transactions, messages, and miner identities.
* Appreciate why digital signatures are essential for **authenticity, integrity, and trust** in Bitcoin SV.

This course is designed for beginners. No prior knowledge of BSV or cryptography is required — only an interest in learning how trust is established and maintained in the BSV network.