Register permanent, timestamped proof of your ideas, music, code, inventions, and creative work. No lawyers. No patents. Just cryptographic evidence.
Register
Upload any file. We compute a SHA-256 hash and RFC 3161 timestamp — legally recognised in UK & EU.
Anchor
Add Polygon blockchain anchoring for an immutable, independently verifiable permanent record.
Certificate
Download your PDF certificate. Share the verify link. Let anyone check your proof is real.
Pick your world. We'll show you exactly how Prooflayer works for you.
How Prooflayer works
A 15-second overview of the whole platform
See the whole thing in 15 seconds
Upload your file, we fingerprint and timestamp it, you get a certificate. Simple, fast, legally meaningful. Free to start.
Free to start · No credit card required · Takes 60 seconds