physical · receipts
Don't trust us. Verify.
Every model we certify, every audit we deliver, ships with a signed receipt: the content is hash-committed and ed25519-signed at issue time. Paste any repryntt receipt below and your browser checks the math itself — if a single byte was altered since signing, it fails.
Verification happens entirely in your browser (WebCrypto Ed25519) — nothing you paste is sent anywhere. repryntt's issuing key: f33a497413ffd660ce254d73b3653fe31d2d233ad4f54615f8e435959c08c2fe
Curious what gets receipted? See a real audit or the lab's services.