Simple and transparent pricing
Choose the plan that fits your needs. Start for free, upgrade when you want.
Billed monthly
Our plans
Free
- 3 timestamps / month
- OpenTimestamps proof (.ots)
- Public verification page
- No PDF certificate
- No long history
Solo
- 200 timestamps / month
- Legal PDF certificate
- Proof history
- Email support
- Autonomous proof (no file storage)
Pro
- 1,000 timestamps / month
- Everything in Solo
- Folders / projects
- Proof sharing (link)
Team
- 5,000 timestamps / month
- 5 users
- API
- Priority support
Enterprise
Higher volumes and custom compliance
- SLA / specific compliance
- On-prem / IS integration
- Dedicated support
Compare features
A clear view to choose the plan that matches your pace.
| Feature | Free | Solo | Pro | Team |
|---|---|---|---|---|
| Timestamps / month | 3 | 200 | 1 000 | 5 000 |
| PDF certificate | No | Yes | Yes | Yes |
| Long history | No | Yes | Yes | Yes |
| Folders / projects | No | No | Yes | Yes |
| Proof sharing | No | No | Yes | Yes |
| Support | Community | Priority | ||
| API | No | No | No | Yes |
Credit packs
A complement to handle volume peaks without changing plans.
100 credits
500 credits
2000 credits
6000 credits
Frequently asked questions
How does blockchain timestamping work?
We use the OpenTimestamps protocol which anchors the hash of your document in the Bitcoin blockchain. This creates irrefutable proof of your document's existence at a specific date, without revealing its content.
Is my file stored on your servers?
No. Your file is never uploaded. The SHA-256 hash is calculated locally in your browser, only this hash is sent to our servers.
What is included in paid plans?
Solo, Pro, and Team plans include a legal PDF certificate, proof history, and monthly quotas adapted to your volume.
Can I supplement a plan with credits?
Yes. Credit packs are used to absorb volume peaks without changing plans.
How long does it take to confirm a timestamp?
Submission is immediate, but blockchain confirmation generally takes 12 to 24 hours, the time for the proof to be anchored in the Bitcoin blockchain.
Can I cancel my subscription?
Yes, you can cancel at any time. You keep access until the end of the current period.