Derivatives and Options For Bitcoin
Welcome to day 23 of my Bitcoin Advent Calendar. You can see an index of all the posts here (/advent21) or subscribe at judica.org/join (https://judica.org/join) to get new posts in your inbox In
POWSWAP: Oracle Free Bitcoin Hashrate Derivatives
Welcome to day 24 of my Bitcoin Advent Calendar. You can see an index of all the posts here (/advent21) or subscribe at judica.org/join (https://judica.org/join) to get new posts in your inbox
Decentralized Autonomous Organizations (DAOs) Will Save Bitcoin
Welcome to day 25 of my Bitcoin Advent Calendar. You can see an index of all the posts here (/advent21) or subscribe at judica.org/join (https://judica.org/join) to get new posts in your inbox The
The History and Future of Sapio
Welcome to day 26 of my Bitcoin Advent Calendar. You can see an index of all the posts here (/advent21) or subscribe at judica.org/join (https://judica.org/join) to get new posts in your inbox Sapio
RoadMap or Load o' Crap?
Welcome to day 27 of my Bitcoin Advent Calendar. You can see an index of all the posts here (/advent21) or subscribe at judica.org/join (https://judica.org/join) to get new posts in your inbox I
London Advancing Bitcoin Tutorial
Other people have followed this tutorial with some success: https://gnusha.org/ctv-bip-review/2022-02-22.log If you’re having a problem, see above log where people have had issues. Common
Sapio Studio Tutorial for CTV Meeting
Other people have followed this tutorial with some success: Common sticking points include: • Not building latest sapio binary before starting • Not building latest sapio-studio project
A Calculus of Covenants
This originally appeared on the mailing list (https://gnusha.org/pi/bitcoindev/CAD5xwhjBkKVuiPaRJZrsq+GcvSeht+SHvmmiH2MjnU2k1m_4gw@mail.gmail.com/). This is a framework for thinking about covenants.
7 Theses on a next step for BIP-119
Warning: this post assumes a great deal of context on CTV is already understood by the reader. If you are not familiar, you may wish to start with utxos.org (https://utxos.org), the advent calendar
Spookchains: Drivechain Analog with Trusted Setup & APO
This post draws heavily from Zmnscpxj’s fantastic post (https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-February/019976.html) showing how to make drivechains with recursive covenants.
FE'd Up Covenants
Covenants are a way of expressing restrictions on Bitcoin. Covenants, while possible to implement as an extension to Bitcoin, do not exist natively. To enable them requires the Bitcoin community to
Un-FE’d Covenants
Covenants in Bitcoin represent a method to restrict how and where coins can move. Functional Encryption (FE) offers an exciting avenue to implement covenants without native protocol changes. However,
CSFS Re-Keying and Laddering, Deterministic Update Rekeying, & Applications to LN-Symmetry
This is a collab post with Rearden (https://twitter.com/reardencode). At Bitcoin++ in Austin this year Rearden showed that there are many ways to realize Lightning Symmetry using various bitcoin
Fun with CSFS I
In this blog series, I’ll write up some fun uses for CSFS I’m aware of. The purpose is to document things that others might not know about. Did I invent these? Maybe. Maybe not. Citations to
Taproot Denial of Service Bug
TL;DR: Taproot’s sighash implementation could cause blocks to take 60s or more to validate with specially crafted standard transactions. The patch adds a new cache during validation.
Delbrag
Delbrag is a paper explaining how garbled circuits can be applied to make BitVM style constructs fraud proofs substantially more efficient, at the cost of increased out-of-band information exchange.
Grokking DelBrag: Out-of-Band On-Chain Fraud Proofs through Circuit Garbling @ Bitcoin++ Austin
My talk at Bitcoin++ on how DelBrag protocols work, including detailed schematics and timing analysis. Also introduces new concepts of optimistic circuit consistency checks. Get the Slides Here