Blockchain Fundamentals and Integrated Node Service - Build your own X

### Main programming language
Typescript/Javascript

### Tutorial title
Blockchain Fundamentals and Integrated Node Service

### Tutorial URL
https://blog.victorbona.dev/blog/blockchain-fundamentals-and-integrated-node-service

### Category
Blockchain / Cryptocurrency

### Pull Request
https://github.com/codecrafters-io/build-your-own-x/pull/1375