Check whether an article, blog post, or PDF was written and published by me — and confirm it hasn't been altered since. Verify by its ID, by its content, or by uploading the file.
Tap to choose a file or drag & drop it here
What this proves
Every entry is committed to this site's public source repository with a cryptographically signed commit, and anchored to the Bitcoin blockchain via OpenTimestamps — an independent record of when it existed that cannot be backdated. A match here confirms the content or file is authentically mine and unaltered. This is strong authenticity and integrity proof; for a specific legal dispute, also consult a lawyer in your jurisdiction.