Certificate of Authenticity — Cryptographic Proof of Weight

ART

SA • CH

Certificate of Authenticity

Real Intelligence™ Sovereign Archival Record · Geneva & Zurich

This document certifies that the artwork detailed below is a registered, original masterpiece, cataloged under the permanent sovereign ledger of ART SA and verified through 27-Vector Real Intelligence™ curatorial spectroscopy.

Title of Masterwork

Cryptographic Proof of Weight

Master Artist

Daxen Steel

Year & Medium

2026 · Dual-Layered Brass Plate with Laser-Sintered Tungsten Inclusions, Physical SHA-256 Ledger Engraving

Dimensions

140 x 100 x 8 cm

Certificate Serial

CH-COA-ri_art_15-A64A91CF

Freeport Registry Status

✓ Swiss Freeport Eligible (Geneva / Zurich)

Cryptographic SHA-256 Provenance Ledger:

A64A91CF8A95CE0578116BF44175903F5F034048C38DCF65EC8B6A854D16BB85

Verification Protocol: https://artsa.com/verify-coa?q=cryptographic-proof-of-weight · Date: November 02, 2026

Dr. Mateo Rossi

Material Spectroscopy

Curatorial Board RI

Lady Genevieve Sterling

Director of Provenance

Archival Ledger RI

Arthur Pendelton-Hayes

Custodian of the Vault

Sovereign Custody RI