Just released: bitcoin-ts BIP32 support. Also includes the first JavaScript implementation for reversing the "non-hardened" derivation algorithm (to go from HD public key to HD private key given any descendant key): blog.bitjson.com/deriving-crack…

Just released: Libauth is an ultra-lightweight JavaScript library for Bitcoin, Bitcoin Cash, and Bitauth applications. It has zero dependencies, and it works in all JS environments, including Node.js, Deno, and browsers: blog.bitjson.com/bitcoin-ts-is-…

Just released a major update to Bitauth IDE – support for testing individual scripts against multiple custom scenarios: blog.bitjson.com/time-travel-in…

New release: Bitauth IDE now supports active code path highlighting – blog.bitjson.com/bitauth-ide-no…

Request for comments: AllowReplay – Safer Splits for Bitcoin Cash: AllowReplay allows users to opt-in to replay protection on a per-signature basis. AllowReplay is strictly beneficial to the implementing side of a split. blog.bitjson.com/rfc-allowrepla…

The prevailing wisdom for bitcoin forks still seems to be "splits reduce total network value", but our only available empirical measurement – price A + price B at the moment of each split – seems to indicate that splits are not zero-sum (BTC+BCH, BCH+BSV).

Excited to share an early preview of CashTokens: a scheme for issuing, transferring, and redeeming SPV-compatible tokens. CashTokens inductively prove their lineage, allowing them to both move freely and interact with "corporation covenants". blog.bitjson.com/cashtokens-con…

Prediction markets are one of the most promising technologies we have for expanding freedom and unleashing human potential. With some work, we can build them on Bitcoin Cash: blog.bitjson.com/prediction-mar…

New: hashed witnesses are a surprisingly simple way to enable contract-based & miner-validated tokens, tradable synthetic assets, decentralized exchanges, and prediction markets on Bitcoin Cash. blog.bitjson.com/hashed-witness…

The PMv3 proposal has been revised and is now a Cash Improvement Proposal: CHIP-2021-01-PMv3. Review and feedback is appreciated! blog.bitjson.com/pmv3-chip-revi…

I just published a new CHIP: Bounded Looping Operations – this would enable loops in BCH contracts without increasing processing or memory requirements. Usage examples included; feedback and reviews appreciated! blog.bitjson.com/chip-loops/

Just published a revision to the Bigger Script Integers CHIP: By allowing BCH contracts to efficiently operate on larger numbers, this proposal enables new use cases, improves contract security, and reduces transaction sizes. blog.bitjson.com/chip-revised-b…

The Ranged Script Numbers (RSN) component of PMv3 has been extracted into its own CHIP to make reviewing and referencing the format easier: blog.bitjson.com/chip-ranged-sc… Now includes usage examples + interactive demo (using Bitauth IDE). Feedback & reviews appreciated!

Thrilled to share a CHIP Marty Alcala and I have been working on: Zero-Confirmation Escrows (ZCEs) enable instant, incentive-secure payments on Bitcoin Cash. blog.bitjson.com/zce/

ZCEs on #BitcoinCash will be an absolutely huge boost to the security of instant transaction, even for exchanges.

Excited to publish v1.0 of Chaingraph – an open source indexer and API backend for Bitcoin Cash apps and businesses. It supports multiple nodes and chains, allowing your business logic to gracefully handle network splits or node instability. 1/8 blog.bitjson.com/chaingraph-v1/

Requesting comments on a new Cash Improvement Proposal (CHIP) for Bitcoin Cash's May 2023 Upgrade: the CashTokens CHIP specifies a set of opcodes which enable both fungible and non-fungible tokens on Bitcoin Cash. (1/7) blog.bitjson.com/cashtokens-v2

Excited to share a new proof of concept: Joint-Execution Decentralized Exchange (Jedex) is a non-custodial, censorship-resistant token DEX architecture for Bitcoin Cash (BCH). Jedex demos new techniques made possible by CashTokens, an upgrade proposal for 2023. (1/n)

The UTXO model means that Bitcoin Cash transaction validation is cheap and parallel: transactions build only on their inputs – no "global state". This eliminates the slowdown of miner ordering and makes BCH transactions >1000x faster/cheaper than on account-based chains like ETH.

V1 release: a zero-dependencies, no-framework, customizable, animate-able, SVG-based <qr-code> HTML element. Drop it on any web page, customize colors, add a center icon, and animate in, out, or based on activity: URL hit, payment received, device paired, blog.bitjson.com/qr-code/