Certificate of Authenticity — Lisbon Meridian Sediment

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

Lisbon Meridian Sediment

Master Artist

Gabriel Da Silva

Year & Medium

2026 · Estremoz marble dust, charcoal & oil on linen

Dimensions

150 × 110 cm

Certificate Serial

CH-COA-aw_lisbon_meridian_sediment-30CB70BD

Freeport Registry Status

✓ Swiss Freeport Eligible (Geneva / Zurich)

Cryptographic SHA-256 Provenance Ledger:

30CB70BD8BC9F752068C4A8CC8D23464710BF1A743361CC76F5FDB208C320D6B

Verification Protocol: https://artsa.com/verify-coa?q=lisbon-meridian-sediment · Date: October 18, 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