A commercial blockchain timestamping service, API-first, anchoring hashes across several chains. It is aimed mainly at developers and organisations embedding timestamping into a system rather than at people timestamping a single document.

Is there a simpler alternative to OriginStamp?

Yes, if your need is one document rather than an integration. A single-purpose service takes a file's hash in the browser, writes it to Ethereum, and returns a certificate with a public verification link — no API key, no plan, no chain selection.

Does OriginStamp upload my file?

Reputable timestamping services, ours included, hash client-side and transmit only the hash. Always confirm this for any provider you use — if a service needs the file itself to create a timestamp, that is a question worth asking, because the hash is all that is required.

Which blockchain is best for timestamping?

For evidentiary purposes it matters less than people assume; what matters is that the chain is public, immutable and likely to persist. Bitcoin and Ethereum both qualify comfortably. We use Ethereum because a direct transaction lets the hash be read on Etherscan with no extra tooling.

OriginStamp Alternative

What OriginStamp offers

A commercial timestamping service with an API-first design: submit hashes programmatically, anchor across multiple chains including Bitcoin and Ethereum, and receive proofs back. It has been running for years, publishes documentation, and pitches at organisations embedding timestamping into a workflow. More recently the company has expanded into adjacent data-provenance products.

For a team wiring timestamping into a pipeline — thousands of records, automated — that is the right shape of product.

Where it may not fit

Priced and packaged for volume. Plans and API tiers make sense at scale and feel heavy for one document.
Integration-oriented. The natural path is via the API. Timestamping a single contract should not require reading API docs.
Broader product surface. As the company moves toward enterprise data provenance, straightforward document timestamping is one feature among many rather than the whole product.
Multi-chain adds concepts. Choosing an anchor chain is a decision most people do not want to make.

How we compare

	OriginStamp	BlockchainSign
Built for	API integration, volume	One document at a time
Pricing	Plans and API tiers	One-time fee per certificate
Getting started	API key, read the docs	Open the site
Chains	Multiple, you choose	Ethereum
Output	Proof via API	Certificate plus public Etherscan link
File handling	Hash client-side	Hash in your browser, never uploaded
Best fit	Embedding in a system	Proving one document existed

We deliberately do one thing: take a file's SHA-256 fingerprint, write it into an Ethereum transaction, and hand back a certificate anyone can verify. No account tiers, no API to learn, no chain to pick.

If you need programmatic timestamping at volume, OriginStamp or a direct chain integration will serve you better. If you need to prove a specific document existed on a specific day, a whole platform is overhead.

What both prove

The same narrow, useful fact: this file existed by this time and has not changed. Neither establishes authorship, and neither is a legal registration — see proof of existence vs proof of authorship. Be sceptical of any provider implying otherwise.

Choose OriginStamp if

You are integrating timestamping into software or a workflow.
You are handling high volume and want an API.
You specifically want a choice of anchor chains.
You need enterprise procurement and contracts.

Choose us if

You have a document, not a pipeline.
You want a certificate today without an integration.
You would rather pay once than hold a plan.
You want the file hashed in your browser and never uploaded.

An alternative to OriginStamp