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GreyBound Bitcoin Engineering & Security의 기술 글 — 프로덕션 비트코인 시스템을 만드는 팀을 위한 것이지, 마케팅 블로그가 아닙니다.
Airgap doesn't fix a wallet seed that was born weak, and how multi-sig can help or worsen the case
2026년 8월 17일 · 14분
A seed is a birth event.
Airgap does not fix a seed that was born weak. Airgap is not a random-number generator. Firmware updates don’t un-birth weak words. Multisig only helps if the keys were born independently.
Three questions before you Approve Bitcoin transactions — or you’re signing blind
2026년 8월 12일 · 8분
What you approve is not what you signed.
The Approve screen is not the contract you sign. Your wallet shows a story. Bitcoin settles a contract. Three questions before Approve — or you’re signing the package, not the screen.
Bitcoin Production Readiness: What Every Engineering Team Should Validate Before Launch
2026년 8월 7일 · 12분
What to validate in wallets, signing, nodes, backends, and operations before real funds are involved.
Production hides different failures than development: irreversible payments, key recovery, node/RPC exposure, indexer lag, and untested restore paths. A practical framework for teams about to launch.