Martti Malmi

Satoshi collaborator, infra wrangler, and early community builder who helped Bitcoin make the jump from an idea to a living network.

Martti Malmi—known online as "Sirius"—was one of Bitcoin's earliest contributors. In the project's quiet beginnings, he helped with core client improvements (including the first GUI builds), kept early infrastructure online, and helped steward community spaces like the forum that became Bitcointalk. His steady, practical work connected code to people—turning a whitepaper into a movement. The Sirius Collection salutes that hands-on spirit of building in public.

Before the headlines, a few builders kept Bitcoin alive. Among them, Martti shipped the first usable GUI, kept core infra online, and nurtured the early forums. The Sirius Collection honors that builder ethos with first-era textures and traits for the quiet doers.

Martti helped turn Bitcoin from a whitepaper into a working network—shipping the first GUI, running infra, and growing its early community. The Sirius Collection salutes that builder spirit.