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# solidity

For the Solidity programming language used on EVM chains.

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# XChainJS Check Transaction Example

# XChainJS Check Transaction Example

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2 min read
# XChainJS Liquidity Example (THORChain)

# XChainJS Liquidity Example (THORChain)

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2 min read
@xchainjs/xchain-util: Install, Use & Build Cross-Chain Crypto Apps (with TypeScript)

@xchainjs/xchain-util: Install, Use & Build Cross-Chain Crypto Apps (with TypeScript)

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3 min read
How to verify your contracts like a mastermind

How to verify your contracts like a mastermind

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9 min read
Vue + XChainJS Example

Vue + XChainJS Example

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2 min read
Join Trinity Protocol: Build the Future of Multi Chain Security

Join Trinity Protocol: Build the Future of Multi Chain Security

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6 min read
How I Built a Decentralized NFT Gift Protocol (and why digital gifting is broken)

How I Built a Decentralized NFT Gift Protocol (and why digital gifting is broken)

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3 min read
Building Trinity Shield: Our Custom TEE Solution for Multi-Chain Security

Building Trinity Shield: Our Custom TEE Solution for Multi-Chain Security

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5 min read
Monad is Fast. Your Code Should Be Reliable. (A New Foundry Starter Kit)

Monad is Fast. Your Code Should Be Reliable. (A New Foundry Starter Kit)

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3 min read
Beyond the Code: Advanced Human-Led Techniques in DeFi Security Auditing

Beyond the Code: Advanced Human-Led Techniques in DeFi Security Auditing

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10 min read
Why We Chose 2 of 3 Consensus (Not 3 of 3): The Math Behind Trinity Protocol

Why We Chose 2 of 3 Consensus (Not 3 of 3): The Math Behind Trinity Protocol

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9 min read
Building a Reusable, Multi-Event Soulbound NFT Contract in Solidity

Building a Reusable, Multi-Event Soulbound NFT Contract in Solidity

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10 min read
Trinity Protocol™: How We Built a 2-of-3 Multi-Chain Consensus System with 90% Gas Savings

Trinity Protocol™: How We Built a 2-of-3 Multi-Chain Consensus System with 90% Gas Savings

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9 min read
The 3 Most Subtle Solidity Bugs We Found in Audits (And How We Found Them)

The 3 Most Subtle Solidity Bugs We Found in Audits (And How We Found Them)

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6 min read
Building Trust in DeFi: A Deep Dive into Musical Chairs' Time-Locked Emergency Functions

Building Trust in DeFi: A Deep Dive into Musical Chairs' Time-Locked Emergency Functions

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4 min read
I Just Built & Fuzz-Tested a Simple Bank Smart Contract Using Hardhat 3 + Viem + Solidity Tests

I Just Built & Fuzz-Tested a Simple Bank Smart Contract Using Hardhat 3 + Viem + Solidity Tests

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4 min read
Deep Dive in Transparent Proxy Code

Deep Dive in Transparent Proxy Code

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5 min read
🎲 Day 22 — Fair & Random Lottery using Chainlink VRF

🎲 Day 22 — Fair & Random Lottery using Chainlink VRF

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8 min read
Day 21 — Build Digital Collectibles (ERC-721 NFTs) — Full tutorial (Foundry + React)

Day 21 — Build Digital Collectibles (ERC-721 NFTs) — Full tutorial (Foundry + React)

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6 min read
Building for Trust: A Guide to Gasless Transactions with ERC-2771

Building for Trust: A Guide to Gasless Transactions with ERC-2771

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8 min read
Understanding Solidity Transparent Upgradeable Proxy Pattern - A Practical Guide

Understanding Solidity Transparent Upgradeable Proxy Pattern - A Practical Guide

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4 min read
🛡️ Day 19 of #30DaysOfSolidity — Signature-Based Web3 Authentication for Private Events

🛡️ Day 19 of #30DaysOfSolidity — Signature-Based Web3 Authentication for Private Events

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4 min read
Day 17 of #30DaysOfSolidity — Build an Upgradeable Subscription Manager for Your SaaS dApp

Day 17 of #30DaysOfSolidity — Build an Upgradeable Subscription Manager for Your SaaS dApp

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4 min read
🏦 Day 11 of #30DaysOfSolidity — Building a Secure Vault with Ownable + VaultMaster 🔐

🏦 Day 11 of #30DaysOfSolidity — Building a Secure Vault with Ownable + VaultMaster 🔐

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4 min read
🏋️ Day 10 of #30DaysOfSolidity — Building a Decentralized Fitness Tracker with Events & Milestones

🏋️ Day 10 of #30DaysOfSolidity — Building a Decentralized Fitness Tracker with Events & Milestones

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2 min read
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