OPTN Labs Blog

Builder notes, product updates, and technical field notes

Start with the latest product update for what is available now, then explore CashTokens, covenants, wallet architecture, and the infrastructure we’re shipping to make BCH easier to build on.

2026-05-19
Bitcoin CashBCHCashTokens

CashScript Covenant Patterns for CashTokens

A technical follow-up for developers working with CashTokens on BCH. This post focuses on covenant patterns, transaction introspection, token-aware output checks, and how to split responsibility between the contract and the transaction builder.