orangecheckv0 · beta

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orangecheck

Proof of Bitcoin stake for the open web. A sybil-resistance primitive. No custody, no account.

mitcc-by-4.0

§ product

create
discover
playground
docs

§ develop

api reference
sign in with bitcoin
protocol spec
airdrop gate
github →

§ about

about
status
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privacy
terms

© 2026 orangecheck · mit + cc-by-4.0₿built with bitcoin