Kizami 刻み
00:00:00:00
25 fpstake 7stamped on nostr

A timecode box that proves when you recorded.

Standard LTC out to your camera and recorder. Every take stamped to Nostr with a hash nobody can backdate. Open hardware, from Copenhagen.

Join the waitlist See what it does

What you get

Bit-perfect LTC

Biphase timecode generated in hardware on an FPGA. No jitter, no drift, no software in the audio path.

Proof of timing

Press stamp and the take's timecode and file hash go to a Nostr relay. Public, signed, permanent.

Works with what you own

3.5 mm LTC in and out. Any camera or recorder with a timecode or audio input.

Yours to open

Schematics, Verilog and firmware are MIT licensed. Flash it, fork it, fix it.

How a take gets engraved

  1. SyncPlug Kizami into your recorder. It feeds continuous LTC at 24, 25 or 30 fps.
  2. StampPress the stamp button at the start of a take. The box notes the exact frame.
  3. PublishOver Wi-Fi it signs a note with the timecode and the recording's hash and sends it to hasky.chat and relays you choose.
  4. VerifyAnyone can check the note later. The signature proves who stamped it, the relay timestamp proves when.
kizami@hasky.chat
Take 7 started at 12:04:31:17
timecode 12:04:31:17  fps 25
sha256 3f9a4c…c21e
sig valid · seen 2026-09-13 12:04:33 UTC

Get one

OptionWhat's in itPrice
Build it yourselfEverything is open source on GitHub, for the tinkerers.free
KizamiReady to use out of the box. Plug in, press stamp, done. First batch of 20.€150

Price includes 25% VAT and shipping within Europe (EU, Norway, Switzerland, UK).

Pre-order — €150

Ships in batch 1. Full refund any time before shipping.

Not ready? Join the waitlist instead.