PTZK-003 — PROVENANCE MANIFEST

Artist: Sam Potozkin
Title: What Remains
Medium: Colored pencil on paper, 9 x 12 in
Completed: 07/05/2026
Registry ID: PTZK-003

Physical authentication:
NXP NTAG 424 DNA chip affixed to verso
Chip UID: 0x04AC6782E51690

Digital record (SHA-256):

original scan (pdf):
  6943b571eda3f02cc975979264a687407038627a115e400bc5da919e3a8640e2

masters (png):
  front: 730fa9b49cef68328be365fe31275ed983a1caa1c239964d2ae00ef806277ea2
  back:  45c2408c16a3b23299087dd773f02c0054eb19f2549767b1b2c287d9eabad21d

public web images (jpg):
  front: 44cd160699d2d6246516f1579b2bacc9f3ac8d2fc070caecc4f7a0115ca2ebfc
  back:  54822cb078fce1957290a1deb556e1d2f07869dbe191d16d2d1fe09686fc4dab

Timestamp anchors: all files above anchored to Bitcoin via OpenTimestamps
on 2026-07-06. Public web images confirmed in Bitcoin block 956991.
Detached .ots proofs for every file are retained in the artist's archive
and verify independently at opentimestamps.org.

This document binds the above chip UID to the above artwork files.
The signed physical original bearing this chip is the unique (1/1) work.
Verification: see chip NDEF record.