Debugging Rootstock Smart Contracts with Replit

Published: 11 March 2026
on channel: Rootstock

In this one-hour masterclass, Rajiv takes a deliberately broken decentralized prediction market - BTC Outcome - and debugs it live on Rootstock, fixing real vulnerabilities that have cost projects millions of dollars in the wild.

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Useful Tools and Resources
Hardhat — https://hardhat.org
OpenZeppelin Contracts — https://docs.openzeppelin.com/contracts
Replit Rootstock Starter Kit — [INSERT REPO LINK]
Rootstock Testnet Explorer — https://explorer.testnet.rootstock.io
Rootstock Testnet Faucet (free tRBTC) — https://faucet.rootstock.io
Chainlist (add Rootstock to MetaMask) — https://chainlist.org
Rootstock Developer Docs — https://dev.rootstock.io
Rootstock RPC (Testnet) — https://public-node.testnet.rsk.co

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This video is part of the From Devs to Devs series — technical tutorials
created by community contributors through the Rootstock Hacktivator program.

👉 Want to create your own tutorial and earn rewards?
Learn more at https://rootstock.io/hacktivator/

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Timestamps
00:00 Introduction to Smart Contract Debugging
02:52 Understanding the BTC Outcome Prediction Market
05:36 Identifying Vulnerabilities in the Smart Contract
08:04 Debugging Techniques and Tools
10:50 Building and Deploying the Smart Contract
13:53 Exploiting Vulnerabilities in the Contract
16:23 Automated Testing for Smart Contracts
25:56 Setting Up the Test Environment
28:34 Exploring Market Resolution and Exploits
30:37 Implementing Security Measures in Smart Contracts
34:18 Understanding Re-Entrancy Attacks
39:59 Securing Functions Against Re-Entrancy
42:16 Finalizing the Smart Contract for Production

#Rootstock #SmartContracts #Solidity #Hardhat #Web3 #Bitcoin #DeFi #Security
#Reentrancy #Debugging #EthereumDev #BlockchainSecurity #OpenZeppelin

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