GS1 Signed

GS1 Signed puts a cryptographically tagged serial into standard GS1 DataMatrix and GS1 Digital Link QR codes. Every scanner can read them. Only genuine units verify.

a GS1 DataMatrix builds, its serial is typed and signed

How it works

Three steps.

  1. Encode

    Satyakod builds the GS1 element string: GTIN, lot, dates and serial.

  2. Sign

    Each 16-character serial in AI (21) carries a tag from a per-batch key held in AWS KMS.

  3. Verify

    Any phone opens the Digital Link. Satyakod checks the tag, the serial and its scan history.

Why it matters

What you get.

  • Standards first

    Works with retailers, distributors and scanners that already speak GS1.

  • No new hardware

    Your current printers and handheld scanners keep working.

  • Per-unit identity

    Every pack gets its own serial, so one copy never covers a batch.

  • Revocable

    Withdraw a batch or a serial range in one step if something goes wrong.

Specifications

The details.

Symbologies
GS1 DataMatrix, GS1 QR (Digital Link)
Identifiers
(01) GTIN, (10) lot, (11) production, (17) expiry, (21) serial
Serial
16 characters with an embedded tag
Output
ZPL at 203 dpi, CSV serial list, PDF proof sheet

See it on your own product.

Send us one SKU. We’ll sign a batch, print test labels and show you live scans within a week.