slides: Serialization Blocks are usually thought of as a serialized data stream. But really these are only true on the network serialization or over the network. A different implementation of bitcoin could in theory use a different format. The format is only used on the network and the disk, not...

Introduction Just to continue on what James said about the build system on Bitcoin Core... I am going to talk about deterministic builds. I am MarcoFalke and I also work at Chaincode Labs in NYC. Bitcoin Core Build System The build system is based on autotools, so it should just work anywhere wh...

Ethan and Nicolas describe atomic cross-chain swaps - a protocol where two parties can exchange coins as a single operation. The exchange does not require any trusted third party and neither of the parties involved can cheat each other. They describe how this can be used on a single blockchain as a privacy protocol or “cross-chain” as a trading protocol.

Introduction The name "sidechain" is overloaded. My favorite private sidechain is my coach. That's my private sidechain. Hopefully I can explain the high-level concepts of a sidechain, at a 10,000 foot view. What are these? What do they give you? Sidechain components First you need a blockchain....

Introduction Good morning, my name is Bryan. I'm going to be talking about reorganizations and forks in the bitcoin blockchain. First, I want to define what a reorganization is and what a fork is. Definitions You might have heard that the bitcoin blockchain is a permanent data structure that re...

python-bitcoinlib repo: Bitcoin Edge schedule: Twitter announcement: Transcript completed by: Bryan Bishop Edited by: Michael Folkson # Intro I will be talking about python-bitcoinlib. # whoami First I am going to start with an introduction slide. This is because I keep forgetting who I am...

# Introduction I have quite a while to speak. I hope it's not too boring. I'll have an intermission half way through. It's not going to be two hours. It will be more like 80 minutes or something. We are going to talk about payment channels, unidirectional payment channels, lightning channels, homom...

slides: # Introduction Alright guys, how are you guys doing? You guys look tired. Given your brains are probably fried, I am delighted to tell you that this talk will be pretty high level. I am James O'Beirne, I work at Chaincode Labs. I've been working on Bitcoin Core since 2015. I am in New Yor...

Introduction Hello. My name is Warren Togami and I will be talking about exchange security. Not only protecting the people but also the business. This has been a topic of interest recently. Warren's security background I have some credibility when it comes to security due to my previous career i...

See also # Introduction Hi everyone. I work at Commonwealth Crypto. Today I am going to be talking to you about blind signatures. I'd like to encourage people to ask questions. Please think of questions. I'll give time and pause for people to ask questions. # What are blind signatures? A very i...

Block structure & headers, UTXO, Merkle Trees, Address, Proof-of-Work & Difficulty, SegWit (BIP141) This presentation was spoken in Japanese. I don't speak Japanese, but I made a live translation as I listened anyway:

Overview of Bullet Proofs - a new zero-knowledge cryptographical solution for confidential transactions

# Introduction I am going to do a short talk on coin selection. Everyone calls me kalle. In Japanese, my name is kalle. Coin selection, what it is, how it works, and interestingly enough- in the latest version of Bitcoin Core released yesterday, they have changed the coin selection algorithm for th...

# Introduction Thank you to Anton and to everyone at Keio University and Digital Garage. I have an hour to talk about digital signatures, finite fields, ECDSA, Schnorr signatures, there's a lot of ground to cover. I'm going to move quickly and start from a high level. My name is John. I live in Ne...

Introduction My name is James Chiang. Quick introduction about myself. My contributions to bitcoin have been on the project libbitcoin where I do documentation. I've been working through the APIs and libraries. I think it's a great toolkit. Eric Voskuil is speaking later today and he also works on ...

We will be using two screens. The english will be on the front screen and the japanese will be on the other screen to the side here. We will also be sharing a google docs file for each one in slack. We should help each other and teach better and learn these things. Without further adue, here's Anton...

Introduction This is going to be a bit of a re-tread I think. I am going to be talking about common bitcoin script templates used in bitcoin today. Addresses do not exist on the blockchain. But scripts do. You've heard about p2pk, p2pkh, p2sh, and others. I'm going to go over these anyway. Pay-t...

Introduction Bryan briefly mentioned partially-signed bitcoin transactions (PSBT). I can give more depth on this. There's history and motivation, a background of why this is important, what these things are doing. What is the software doing? History and motivation Historically, there was no stan...

Introduction I am going to talk about why we have scripts in bitcoin. I'll give some examples and the design philosophy. I am not going to talk about the semantics of bitcoin script, though. Why do we have bitcoin script? I'll show how to lock and unlock coins. I'll talk about pay-to-pubkey, multis...

SIGHASH\_NOINPUT (BIP118) Hi, my name is Bryan, I'm going to be talking about SIGHASH NOINPUT. It was something that I was asked to speak about. It is currently not deployed, but it is an active proposal. So, just really brief about who I am. I have a software development background. I just lef...

Introduction Taproot and graftroot are recent proposals in the bitcoin world. Every script type looks different and they are distinct. From a privacy perspective, that's pretty bad. You watermark or fingerprint yourself all the time by showing unique scripts on the blockchain or in your transaction...

Intro Alright, I’m now going to talk about bitcoin wallet security. And I was asked to talk about key management and hardware security modules and a bunch of other topics all in one talk. This will be a bit broader than some of the other talks because this is an important subject about how do you a...