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Software

New releases, development updates, and demos of open source software.

Software

Bitcoin Cash DNS Seeds

Two new DNS seeds are now available for Bitcoin Cash: bch.bitjson.com for the main network and testnet4.bitjson.com for the test network. DNS seeds are web addresses included in Bitcoin Cash software to help new users find and join the peer-to-peer network. To test each seed, try

Software

Bitcoin Cash Upgrade 2022

All Bitauth open source software – including Libauth, Bitauth IDE, and Chaingraph – will provide support for the 2022 Bitcoin Cash upgrade.

Chaingraph

Chaingraph: Multi-Node Bitcoin Cash Indexer

The first release of Chaingraph – a new, open source indexer and API backend for Bitcoin Cash apps and businesses – is now available.

Videos

Chaingraph Installation and API Demo

I recorded a short demo showing installation of Chaingraph on a local Kubernetes cluster, plus a brief tour of the Chaingraph API.

CashTokens

PMv3-Based CashTokens

A post describing the original 2020 implementation of contract-validated tokens for Bitcoin Cash. Superseded by the CashTokens CHIP.

Bitauth IDE

Bitauth IDE Now Supports Active Code Path Highlighting

Bitauth IDE now fades out code paths which are not evaluated by the active script, improving the readability of complex evaluations.

Bitauth IDE

Time Travel in Bitauth IDE with Scenarios

Testing Bitcoin and Bitcoin Cash authentication templates in Bitauth IDE is now easier with support for custom scenarios.

Libauth

Libauth Has a New Logo

Libauth is an ultra-lightweight JavaScript library for Bitcoin, Bitcoin Cash, and Bitauth applications. Portable, zero dependencies.

Libauth

Bitcoin-ts is now Libauth

Libauth is an ultra-lightweight JavaScript library for Bitcoin, Bitcoin Cash, and Bitauth applications. Portable + zero dependencies.

Libauth

Deriving & Cracking BIP32 HD Keys in JavaScript

The new bitcoin-ts supports BIP32 Hierarchical Deterministic (HD) key derivation, including a method for reversing non-hardened derivation.

Libauth

New Release: CashAddress Error Correction for Javascript

The latest release of bitcoin-ts now supports encoding, decoding, and error correction for CashAddress, the address format used by BCH.

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…

Libauth

Evaluate and Debug Bitcoin Cash Scripts in JavaScript

A full TypeScript implementation of the BCH virtual machine is now available in bitcoin-ts, including both standard evaluation and a…

Libauth

Schnorr Signature Support for JavasScript using WebAssembly

The latest version of bitcoin-ts now includes support for signing and verifying Schnorr signatures over the secp256k1 curve. Schnorr functionality has been added to the library’s Secp256k1 WebAssembly interface: This implementation follows the BCH_2019_05 Schnorr specification, which is derived from Pieter Wuille’s Schnorr BIP specification. (As

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.

Libauth

Just released: SHA-256, SHA-512, SHA-1, and RIPEMD-160 using WebAssembly

TL;DR: up to 20x better performance than JavaScript, and up to 4x faster than Node.js native bindings for small inputs. (But you should look at the benchmarks yourself.) You can now import WebAssembly implementations of the cryptographic hash functions used in cryptocurrencies like Bitcoin and Bitcoin Cash from

Libauth

Just released: WebAssembly version of Secp256k1 (10x faster than Javascript)

Bitcoin, Bitcoin Cash, and most other cryptocurrencies use the Elliptic Curve Digital Signature Algorithm (ECDSA) to authenticate transactions. ECDSA can be used with a number of different elliptic curves, and Bitcoin’s creator chose the Koblitz curve Secp256k1 for Bitcoin’s digital signature system. Secp256k1 is used by most cryptocurrency