BCH VM Bytecode

A collection of 25 posts

Ideas

2025 Bitcoin Cash Improvement Proposals

I recommend the VM Limits & BigInt CHIPs for activation in Bitcoin Cash's 2025 upgrade.

Videos

General Protocols Space #34: Ask Me Anything

I joined General Protocols Space #34 to talk about Virtual Machine Limits, BigInt, the CHIP upgrade process, BCH vs. ETH, decentralized exchanges, and instant finality with Zero-Confirmation Escrows (ZCEs).

Videos

Bitcoin Cash Podcast #130: VM Limits & BigInt

I joined the Bitcoin Cash Podcast to talk about the Virtual Machine Limits & BigInt CHIPs, the CHIP upgrade process, and instant finality with Zero-Confirmation Escrows (ZCEs).

Videos

Bitcoin Cash Podcast #122: Virtual Machine Limits

I joined the Bitcoin Cash Podcast to talk about the history and rationale behind the VM Limits & BigInt CHIPs, directions for future protocol development, and instant finality with Zero-Confirmation Escrows.

Software

Bitauth IDE v1.0.0 Released

The first long-term stable (LTS) release of Bitauth IDE, v1.0.0, is now available. This upgrade significantly improves performance, enables offline usage, and clears the way for future development.

Software

Libauth v2.0.0 Released

Libauth v2.0.0 is now available, and the library has reached over 1 million annual downloads, with consistent growth in daily downloads.

Software

Jedex: Decentralized Exchanges on Bitcoin Cash

Jedex is a technical demonstration of a massively-parallel, non-custodial, censorship-resistant decentralized exchange (DEX) built directly on Bitcoin Cash using CashTokens.

Videos

Bitcoin Cash Upgrade 2022 Livestream

I joined the Bitcoin Cash Upgrade 2022 Livestream hosted by Satoshi's Angels to answer questions and discuss new use cases made possible by the upgrade.

Ideas

CashTokens: Token Primitives for Bitcoin Cash

CashTokens enable decentralized applications comparable to Ethereum contract functionality, while retaining Bitcoin Cash's >1000x efficiency advantage in transaction and block validation.

Videos

BCH Network Discussion: Introspection

I joined the September 2021 Bitcoin Cash Network Discussion about introspection opcodes. These opcodes enable far more secure wallets, efficient recurring payments, and more.

Ideas

CHIP: Ranged Script Numbers

The Ranged Script Number (RSN) format is derived from the existing Script Number format used within the BCH VM, but it includes a prefix which allows RSN values to be safely parsed from serialized transaction messages.

Ideas

CHIP Revised: Bigger Script Integers

A new revision to the Bigger Script Integers CHIP has been published. This revision adds a full technical specification and an extensive Rationale section documenting design decisions made in the specification.

Ideas

CHIP Revised: Native Introspection Operations

A new revision to the Native Introspection Operations CHIP has been published. This revision clarifies several technical details and adds an extensive Rationale section documenting design decisions made in the specification.

Videos

BCH Network Discussion: PMv3

I presented PMv3 in the June 2021 BCH Network Discussion panel. We described several PMv3 use cases, possible alternatives, implementation costs, and implications for future BCH development.

Ideas

CHIP: Bounded Looping Operations

Two new BCH opcodes, OP_BEGIN and OP_UNTIL, would enable loops in BCH contracts without increasing processing or memory requirements.

Ideas

CHIP: Targeted Virtual Machine Limits

By fixing poorly-targeted limits, we can make Bitcoin Cash contracts more powerful (without increasing validation costs).

Videos

Video: Prediction Markets on Bitcoin Cash

I spoke with George Donnelly about hashed witnesses, PMv3, CashTokens, prediction markets, synthetic assets, decentralized exchanges, BCH scaling considerations, comparisons with ETH, and more.

Ideas

RFC: OP_PUSHSTATE Draft Spec

This is a request for comments on a draft specification for a new Bitcoin Cash opcode, OP_PUSHSTATE, which is now available on GitHub…

CashChannels

CashChannels: Recurring Payments for Bitcoin Cash

CashChannels let users pre-approve future transactions, valued in any currency, to another person or company.

Bitauth IDE

How to Write Custom Bitcoin Scripts in Bitauth IDE

Bitauth IDE is an integrated development environment for bitcoin authentication. This guide explains features of the IDE and language.

Bitauth IDE

New Examples Added to Bitcoin Script Debugger

BitAuth IDE now includes examples of 3 types of authentication schemes available for securing bitcoin: single signature (P2PKH), a 2-of-3…

Bitauth IDE

BitAuth IDE:  Write and Debug Custom Bitcoin Scripts

Bitauth IDE is a new open source project for designing advanced authentication schemes for bitcoin and bitcoin-like cryptocurrencies.

Videos

Bitcoin Script for Beginners

I gave a talk at TABConf 2019 introducing Bitcoin Script, the virtual machine bytecode which is built into bitcoin. The slides are available online [https://script.bitjson.com/], and the source is also on GitHub [https://github.com/bitjson/bitauth-ide-slides]. Bitcoin Script For BeginnersBitcoin Script For Beginners – a presentation at

Bitauth IDE

Bitcoin Script: a Reading List

While thinking about and implementing BitAuth2017, I compiled a list of articles and resources about Bitcoin Script — the scripting…

Videos

Bitauth Master Plan

My (long) talk about Bitauth at the Atlanta Blockchain January 2017 Meetup. For a written summary, see the Bitauth2017 specification [https://github.com/bitauth/bitauth2017/blob/master/bips/0-bitauth.mediawiki]. Part 1 Authenticating Bitcoin Transactions [https://youtu.be/fJGZ44I_FHE?t=3m41s] (slide →) [https://bitauth.bitjson.com/#/1] Part 2