Steve L leads editorial at Proof of Custody. He is a software engineer and bitcoin product builder who spent years in Silicon Valley, including at Google, before focusing full time on bitcoin. He has built and advised bitcoin products across custody, payments, and self-custody tooling, and invests actively in the ecosystem. His editorial focus is custody architecture: how keys are held, how institutions fail, and what actually protects a holder's bitcoin. He reviews every platform score and comparison against the public methodology, and treats editorial independence as the product.