Smart Contract BOT code, running on Ethereum Blockchain, watching for and executing profitable arbitrage opportunities using flash loans and flash swaps.

A stop-loss bot that will monitor Ethereum prices and sell your crypto wallet balance for a stable coin when a threshold is trigged.

Smart contract security auditing is a thorough analysis of a blockchain applications’ smart contracts in order to correct design issues, errors in the code, or security vulnerabilities.

Calling Another Contract Function in Solidity

Solidity program done with with "non-functional" assembly expressions as swapN, dupN, add, sub, mul, and exp to compute a simple function.Test case: Evaluating f(5,6) should return 3993.

You've been in a car accident and need to make a claim. The following project helps you understand the process used by FSRA, the Financial Services Regulatory Authority of Ontario, and lead you to …

Food supply chain is a Hyperledger blockchain based solution which solves the tracking and tracing of food products in the supply chain so that any product can be traced back to its roots.

Interledger is working towards a more equitable and creative global society through an open payments network in which anyone can seamlessly earn, share, buy, sell, and trade with anyone else in the…

Katacoda Scenarios

I’m Alexandre Rapchan, a Brazilian developer living in Toronto CA who loves tech and innovation. I'm interested in utilizing my analytical and problem-solving skills by designing and implementing d…

This application will put the data into a smart contract that can access the oracle smart contract to access the off-chain data.

A Smart Contract implementing the escrow blockchain design pattern. Written in Solidity and deployed in the Ethereum network.