BitDevs Socratic Seminar: Blind Signatures and Chaumian Ecash, food & drinks

BitDevs Athens is a community for those interested in discussing and participating in the research and development of Bitcoin and Bitcoin-related protocols. You can be well versed with or new to the topics, all are welcome. Be advised: discussion will be ***technical***.

We are following a Socratic Seminar format that originated in BitDevs NYC: presenters introduce topics for up to 10 mins and a discussion among participants follows. It is highly recommended that participants have been through the reading material in advance. We also go through the month's Bitcoin technical news.

This day's topic will be:

1) Blind cryptographic signatures and Chaumian ecash. Blind signatures were proposed in 1983 by David Chaum and implemented by Digicash in the 1990s and are now coming back as building blocks in Bitcoin Layer 2s such as Fedimint and Cashu.
Reading material:

• The short Wikipedia article on blind signatures
• A series of very short videos explaining blind signatures: https://www.youtube.com/watch?v=CcB9nH78Ths
• A 1-hour practical video showing the user interaction with Cashu using both ecash and Lightning payments: https://youtu.be/riTRD0BdMDI?feature=shared
• A 2-hour video starting from blind signatures, building Chaumian ecash mints and using them in Bitcoin: https://www.youtube.com/watch?v=VwMzNE1D3so (use the Table of Contents to skip to the sections of interest).
• The text notes of this video are at https://gist.github.com/AdamISZ/28c3475734becf031c9924f0b50d1bed

2) Review of technical Bitcoin news. In every meetup we go through technical Bitcoin news.

How should I prepare? Read the material.
Do you hold meetups for a wider audience? Yes, please subscribe to https://www.meetup.com/blockchaingreece-0/ and review past meetups.

The event will be held in English and is free. We start at 7pm and at 9 pm we will head to dinner & drinks, all are welcome! We would like to thank Programmize for hosting us!