No code
Steps, who signs each one, and the fields to record: text, numbers, dates, choices, and files that are fingerprinted, never uploaded.
Custody Kits
Your industry isn't listed? Build it in five minutes.
Describe who hands what to whom, and what each party has to record. You get a working app straight away: every party signs with its own key, the file travels with the item, and anyone can check the whole history. The same signing and checking as our cargo, aviation and pharma editions.
Works at once
Your kit becomes a link. Send it to every party; each opens it in a browser, makes a key and signs.
Rules enforced
Only whoever takes the item can sign for it, only the holder can sign holder steps, only the right role can sign role steps. Edited, missing or forged records fail the check.
Open source
The engine is open source under Apache-2.0. Nothing is stored on our side: the kit lives inside its own link.
Loading the builder. This page needs JavaScript.
3. Your app
Pricing
Free
Build kits, share them, and sign and check every record in the browser, as much as you like. No account.
$0
Signed check
Send a kit's working file and get a result signed by BSVKey that you can hand to an insurer, a lender, an auditor or a court.
$2 per check, from prepaid credits or per call in Bitcoin BSV
Run a signed checkPro
For businesses running a kit with partner companies: your kit hosted under a short link with your company's name, a shared directory of your partners' keys that every check picks up, $60 of credits each month (30 signed checks), and email support within one business day.
$49 a month, cancel any time
Start ProBuilt for you
A full industry edition like our cargo or aviation ones: open-source core, your own app page, paid services for your customers, and a comic explaining it.
Fixed price, quoted by email from one description of your process
Email us your processTell us about your handoffs
Send one process where things change hands and arguments start. We will reply with a kit you can try that day.
Email embryospace@gmail.com