
Woleet
Stampery
Bitstamped
Proof of existence
StampR.eu
BlockchainSign
OriginStamp
A document blockchain stamping service
FEEDBACKdeck brings to WordPress, a gorgeous way to capture user feedback.
Website, pricing, platforms and company facts side by side.
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FEE
FEEDBACKdeck
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|---|---|---|
| Website | stampd.io | feedbackdeck.com |
| Company | Startup from Greece | — |
| Listed in |
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When comparing Stampd and FEEDBACKdeck, you can also consider the following products.

Blockchain timestamping and certification Software as a Service , SaaS.
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Stampery generates legally binding proofs of existence, integrity and ownership.
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Allows to certify a document ( of any format ?
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Verifiable authorship evidence for digital files using qualified electronic timestamps.
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Timestamp any document on Ethereum and get a certificate anyone can verify. The file is hashed in your browser and never uploaded — only the SHA-256 hash is recorded. No subscription and no crypto wallet.
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