Introduction to ZK Circuits with Circom Circom is a programming language for creating Rank 1 Constraint Systems (R1CS) and populating the witness vector of the R1CS. The R1CS format is of interest...

Coding a Solidity rebase token A “rebase token” (sometimes “rebasing token”) is an ERC-20 token where the total supply, and the balances of token holders, can change without transfers, minting, or...

Bilinear Pairings in Python, Solidity, and the EVM Sometimes also called bilinear mappings, bilinear pairings allow us to take three numbers, $a$, $b$, and $c$, where $ab = c$, encrypt them to become...

Creating "mappings" and "nested mapping" in Solana !"Mappings" and "Nested Mappings" in Solana In the previous tutorials, the parameter was always empty. If we put data into it, it behaves like a key...

Where to find solidity reentrancy attacks Reentrancy can only happen when your smart contract calls another smart contract via function call or sending ether. If you do not call another contract or...

The Solana clock and other "block" variables !solana clock Today we will cover the analogs of all the block variables from Solidity. Not all of them have 1-1 analogs. In Solidity, we have the...

Modifying accounts using different signers !Hero image showing Anchor Signer: Modifying accounts with different signers In our Solana tutorials thus far, we've only had one account initialize and...

Function modifiers (view, pure, payable) and fallback functions in Solana: why they don't exist !Hero image showing view, pure, payable, fallback, and receive in Solona Solana does not have fallback...

Arithmetic and Basic Types in Solana and Rust !Hero image showing the Solana logo and a calculator Today we will learn how to create a Solana program that accomplishes the same things as the Solidity...

Basic Rust for Solidity Developers !Hero image showing Rust : the easy parts This tutorial goes over the most commonly used syntax in Solidity and demonstrates the equivalent in Rust. If you want a...