If you like what you see, please donate some BTC to bc1qf3gsvfk0yp9fvw0k8xvq7a8dk80rqw0apcy8kx or some ETH to 0xcDE1EcaFCa4B4c7A6902c648CD01db52d8c943F3
Sec Msg: Secure Messaging via Blockchain
Generate an image from Solidity: NFT Data On-Chain
How to run a local geth node: Local Geth
How to deploy a NFT, step-by-step
A small lib to investigate bitcoin tx building: beeteasea
A client side implementation of https://www.travelruleprotocol.org/ project: trp
A DIP5 compliant Bech32 implementation in Java: project mouton
Display Ethereum nodes in a map: project bisous
You can find an implementation of the curve there https://github.com/tjdragon/ed25519 using BouncyCastle, Google Tink and Nimbus JOSE.
Related to ECDSA https://github.com/tjdragon/pkr
Some private investigations on BIP32 there https://github.com/tjdragon/bip32
An implementation of the Travel Rule protocol for VASPs https://github.com/tjdragon/travelrule
A small poc using Hedera's Java Swirlds SDK to run a smart contract, in this case a wallet to wallet transfer: https://github.com/tjdragon/w2w
A Topological sorting implementation, useful for pricing graphs in banking.
Some basic Scala projects: a Mandelbrot, a Self-Organizing Map, an interview question Snail Algo, another interview question x-word, mTLS