Sign and check
Free, and it runs entirely on your device: your keys and files never leave it.
How it works now shipping and cargo
Free in your browser: each party signs with its own key, the container file travels with the box, and anyone can check it. For a result signed by BSVKey and a loss split, run the paid check.
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Built from the open-source code in BSVKey/maritime-custody. To sign straight from your own systems or devices, use that code directly. For paid services, such as timestamping files on the public ledger, see Do it now.