HomeHacker News Show HN: BlockPaper – Centralized, paper-backed blockchain in my home office https://ift.tt/sXY9h3k byHat hair -February 05, 2022 0 Show HN: BlockPaper – Centralized, paper-backed blockchain in my home office https://ift.tt/aoLfDb5 February 6, 2022 at 02:59AM Tags: Hacker News Facebook Twitter