Verify OpenTimestamps Receipt

Name: iStampit.io
Rating: 4.8 (127 reviews)
Author: SinAI Inc

Drop a file, paste a SHA-256 hash, and load its .ots receipt to confirm a Bitcoin‑anchored timestamp. Nothing leaves your browser.

1. Provide Artifact (file OR SHA-256)

Select File

Paste SHA-256 (hex)

Tip: You can paste a 64‑char SHA‑256 hash directly; drag & drop also supported.

Select .ots Receipt

🔒 Privacy First

We publish and verify hashes only. Your files never leave your device.