An editor for digital contracts
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Write or copy-paste the text of an agreement, statement or any text you want to have verifiable by one or more parties. You can use markdown.
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Click the blue button to append a stamp section with an hash of the text and a timestamp. Make every other party do the same: timestamps will differ but the hash must be identical.
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Click the green button to download a copy of the content with the stamp.
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Digitally sign the text. You can use keybase.
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Send or publish your signed contract and get the other party's signed copy. If you use keybase.pub you can just exchange links.
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Everyone can now verify that YOU signed THAT text at THAT time. If there are multiple parties you can verify that they signed the same text by quickly checking the hashes.
This provides basic identity proof, integrity and non-repudiation with a few clicks and an easy-readable document.