Update index.html

Author: deian

index.html

@@ -53,15 +53,14 @@
     - [Majority is not Enough: Bitcoin Mining is Vulnerable](https://arxiv.org/abs/1311.0243) by Ittay Eyal and Emin Gun Sirer
 
 Mon Apr 14 2025: Bitcoin (part 3)
-  - [*Slides*](./slides/bitcoin-hacks.pdf)
-  - [*Slides*](./slides/tracing.pdf)
+  - [*Slides*](./slides/lecture4.pdf)
   - *Reading*:
     - [A Fistful of Bitcoins: Characterizing Payments Among Men with No Names](https://cseweb.ucsd.edu/~smeiklejohn/files/imc13.pdf) by Sarah Meiklejohn et al.
   - *Optional reading*:
     - [Mt. Gox: What We Still Don't Know 10 Years After the Collapse](https://www.coindesk.com/consensus-magazine/2024/02/28/mt-gox-what-we-still-dont-know-10-years-after-the-collapse/)
     - [How to Peel a Million: Validating and Expanding Bitcoin Clusters](https://smeiklej.com/files/usenix22.pdf) by George Kappos et al.
 
-Mon Apr 16 2025: No class
+Mon Apr 16 2025: Bitcoin Consensus Enze Alex Liu
 
 Mon Apr 21 2025: Ethereum (part 1)
   - [*Slides*](./slides/ethereum.pdf)