PostStamper
Blockchain-verified timestamps for your social media posts using OpenTimestamps
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PostStamper - Blockchain Timestamps for Social Media
Create verifiable proof of when you posted content online. PostStamper generates cryptographic timestamps anchored in the Bitcoin blockchain using the OpenTimestamps protocol.
How It Works
Click the stamp button on any supported post
A SHA-256 hash is created locally in your browser
The hash is submitted to OpenTimestamps calendar servers
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