How it works

One card. One Seal. A protocol of safekeeping. Prove, keep and pass on the provenance of the objects that matter — no server, no middleman.

1. 1

   Seal

   Link an object to your vault with a simple gesture: hold your card to the back of your phone, like a contactless card.

2. 2

   Keep

   Your relics live locally, under your control. A fingerprint proves they haven't changed since sealing.

3. 3

   Pass on

   Gift, transfer hand to hand, or sell with payment — the trace remains, dated, in your register.

Six ways to add a relic

An NFC chip, a QR code, a photo on the spot, a file, a web link frozen in time, or a pasted text — each method captures one content, alone or gathered with others in a single relic.

Pass on, no middleman

Gift a relic, hand it over in person with an NFC gesture, or sell it with payment. Each time, the trace remains — dated — in your register.

The proof follows the object

At any moment, a simple tap verifies the origin: sealed by its original card, dated, signed. The proof travels with the object, offline.

What if I lose my card?

Your relics are not stored on the card. With your 24 recovery words, you reinstall your vault onto a new card; the old one becomes useless.