The sCrypt Language Reference

sCrypt (pronounced “ess crypt”) is a high-level smart contract language for Bitcoin SV. Bitcoin supports smart contract with its Forth-like stack based Script language. However writing smart contract in native Script is cumbersome and error-prone. It quickly becomes intractable when the contract size and complexity grow.

sCrypt is designed to facilitate writing smart contract running on chain.

• It is easy to learn. Syntactically, sCrypt is similar to Javascript and Solidity, making it easier to be adopted by existing web and smart contract developers.
• It is statically typed. Type checking can help detect many errors at compile time.

Warning

sCrypt is still in experimental phase and is currently only intended for small amount usage.

Introduction

• A Simple Smart Contract
  • Constructor
  • require()
  • Public Function
• IDEs
  • Desktop IDE
  • Studio
  • Playground

Language Specification

• Syntax Specification
  • Formal Specification
  • Types
  • Domain Subtypes
  • const Variables
  • if statement
  • exit()
  • Code Separator
  • Access Modifiers
  • Operators
  • Scoping
• Loop
  • Induction variable
  • Conditional loop
  • break
• Functions
  • User-Defined Functions
  • Library Functions
• Standard Contracts
  • Multiple Contracts
  • import
  • Library
  • Standard Contracts
• Compile Time Constant
• Stateful Contract
  • State Decorator
  • Update the State
  • Advanced
  • Restrictions

sCrypt by Example

• Pay to Public Key Hash
• R-Puzzle
• Ackermann Function
• Rabin Signature
• Multiparty Hash Puzzles

Advanced

• Inline Assembly

Contact

scrypt.io

Slack

Telegram

Contributing

See CONTRIBUTING.md at our GitHub for more information on what we’re looking for and how to get started.