#154: Amiti Uttarwar

— Amiti Uttarwar's path to Bitcoin Core development, starting from work at Coinbase and through the Chaincode residency, with only one year of contribution experience to date.

— Her rebroadcasting project aims to improve transaction privacy by moving rebroadcast logic from wallet level to node level, preventing adversaries from identifying transaction sources via timing analysis.

— The five core goals of Bitcoin's P2P network: reliability, timeliness, accessibility, privacy, and upgradability—each with distinct technical and social trade-offs.

— Mempool nuances: every node maintains a different mempool based on configuration, and privacy depends on concealing exactly when transactions arrive in that mempool.

— Low-hanging fruit in Bitcoin Core includes improved testing (fuzzing), documentation, and comments, all of which are being actively worked on by growing numbers of sponsored developers.

— The importance of Layer 2 solutions like Lightning Network and future architectural improvements (e.g., Erlay, utreexo) for Bitcoin's long-term scalability and adoption.

— If you are concerned about transaction privacy, consider broadcasting signed transactions from a third-party node or service rather than your own node to defeat timing analysis, and focus on coin selection and PSBT workflows to minimize information leakage.

— New Bitcoin Core contributors should download the repo, build it, run tests, then follow their own curiosity by examining open issues and PRs in areas that interest them—expertise grows fastest through hands-on engagement and asking questions, not memorizing books first.

— The ecosystem is at an inflection point: companies (Xapo, Square Crypto, Chaincode, Blockstream) are now funding full-time core developers at scale, signaling confidence in Bitcoin's longevity and creating unprecedented opportunities for protocol improvement and hiring.