TimeAnchor
Verify that a document existed at a specific point in time.
Free · Open · Trustless
Bitcoin is the oldest and most secure blockchain, running since 2009. OpenTimestamps is an open protocol that anchors document hashes to Bitcoin.
📄
Original File
Drop your document here
🔐
OTS Proof
Drop your .ots file
Upload both files to verify the timestamp
You can also verify at opentimestamps.org