Timestamp documents on Bitcoin from $0. One blockstamp proves one file existed and hasn't changed since.
One document, one hash, or any file up to 25 MB. If you submit a batch, each file in it counts as one blockstamp.
Yes. Anything you don't use carries forward to the next month, and rolled-over blockstamps never expire.
Timestamping pauses until you top up — you are never charged automatically for going over. Buy a pack and you are running again straight away. Enterprise plans can be set up without hard stops, with overage billed on invoice.
Not at the moment — all plans are billed monthly. For volume or multi-year commitments, talk to us about an Enterprise plan.
Yes — API access is included on every plan, including Free. We will send your API keys by email after you sign up.
For governments, agencies and organisations with high-volume or regulated record-keeping. Volume pricing, invoicing and procurement support, dedicated onboarding, a service level agreement, and no hard stops — overage is billed on invoice.
Talk to us
