OPENSIG
Simply Signatures
Digitally sign and verify documents on the blockchain from the privacy of your computer. No account needed. Simply connect your wallet and select a file to sign or verify. Files never leave your computer and you only pay a network fee when you sign.
No upload. No contracts. No intermediary. Simply signatures.
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You need Metamask to use this service
Timestamped
Proof of existence
Proof of possession
New to Web3?
Don’t worry! We are working on a version of OpenSig for ALL users.
Join the waiting list below to be informed as soon as it is released.
Join the waiting list below to be informed as soon as it is released.