Instant proof of
authorship for your
digital assets.
Manuscripts · Illustrations · Music · Photos · Code
Your file never leaves your device - we hash it locally. Actually we can do it WITHOUT seeing your file at all, if you do local hashing yourself and provide just the hash value. It takes less than a minute.
Dual Shield
EU Certified Timestamp
Qualified timestamp under eIDAS regulation (EU). Instant legal force — admissible as direct evidence in European and global courts.
Blockchain Anchor
Secondary fixation in the public Bitcoin registry via OpenTimestamps. Retroactive date manipulation is mathematically impossible.
Deterministic Proof
Your file produces a unique SHA-256 fingerprint — change a single byte and the hash changes entirely. This creates tamper-proof, mathematically verifiable evidence.
From Text to Mobile Media
Text
Prose, Poetry, Code
Digital Art
Illustrations, 3D
Audio
Tracks, Samples
Mobile Media
Photo/Video
Quality Guarantee: 60 Days Money Back
We guarantee mathematical and legal accuracy. 100% refund if the timestamp fails verification.
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