Veritag – Authentic Art

Veritag turns an artwork into a portal. Tap the circle and hold your iPhone to the NFC chip on the work: in a moment the app checks that it is authentic and opens its passport — the story of the work, the artist who made it and the curator who vouches for them. ARTTRUST: THREE INDEPENDENT PROOFS • The chip — NXP NTAG 424 DNA: every read produces a fresh cryptographic proof (AES-CMAC with a counter). It cannot be cloned, and an old read cannot be replayed. • The signature — the artist signs the bond between work and chip with an ECDSA P-256 key that is created on their phone and never leaves it. • The curator — a curator meets the artist in person and grants the blue check with a code exchanged face to face. FOR VISITORS • No account: hold your iPhone close and read the verdict — authentic, counterfeit, replayed read or unverified artist. • The artwork’s passport: title, story, artist, the curator’s guarantee and the exhibitions it has been part of. • When the artist offers one, the Private View: reserved works that open only for whoever tapped an authentic artwork in person. • Direct contact: save the artist’s card or ask for a studio visit. FOR ARTISTS • Create your artist identity: the signing key stays on your phone. • Ask a curator for the blue check by reading them a code in person. • Sign your works: tell the work’s story, add a photo and write the NTAG 424 DNA chip by holding your iPhone to it. • Tag doctor: identify a chip or erase it. Requirements: an iPhone with NFC (iPhone 7 or later). Artworks need NXP NTAG 424 DNA chips. No ads, no tracking. Veritag is made by Exteryo Srl.