Sam Potozkin

— Original Works · Physical + Cryptographic Authentication · 2026

PTZK.

Hand-drawn colored pencil originals by Sam Potozkin, each physically authenticated with an embedded NFC chip and cryptographically timestamped on the Bitcoin blockchain.

MediumColored pencil on paper
AuthenticationNTAG 424 DNA + Bitcoin anchor
Registry3 works
StatusOpen
Original 1/1NFC AuthenticatedBitcoin Anchored
PTZK REGISTRY · EST. 2026

01/The Collection

PTZK REGISTRY · EST. 2026

02/Authentication

How each work is authenticated.

01 / Physical

Each original carries a tamper-resistant NTAG 424 DNA chip on the verso; tap it with any phone to reach that piece's verification page.

02 / Cryptographic

The artwork's digital masters are hashed and anchored to the Bitcoin blockchain via OpenTimestamps: mathematical proof of existence on a specific date that cannot be altered or backdated.

03 / Documented

Signed verso inscription, work-in-progress photo record, and a provenance manifest published to permanent storage.

Verification · Ten Seconds

Tap the chip

any phone, no app

Page opens

this registry, this piece

Match the UID

chip vs. published record

Check the proof

independent, at opentimestamps.org

Verified

authorship + provenance confirmed

Fan artwork. Not affiliated with, sponsored, or endorsed by any rights holder. Depicted characters remain the property of their respective owners. Each work is an original hand-made drawing; authentication attests to authorship and physical provenance only.

REGISTRY RECORD ENDS