Create a Certificate of Anteriority on Kaspa

Upload a document to generate its unique SHA-256 hash. This hash will be signed and a transaction will be created on the Kaspa blockchain, providing a permanent, timestamped proof of the document's existence.

1. Kasware wallet connection

Connect KasWare Wallet

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2.Document selection

Select the document you want to certify: it will not be uploaded - only its fingerprint will be signed and anchored.

Select your document:

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3. Signature and transaction

Your KasWare wallet will ask for confirmation to send 1 KAS to the service address, plus a network fee. Only the fingerprint is added to the Kaspa transaction. The file itself will not be uploaded.

Sign & Send Transaction