COA Cryptographic Registry — ART SA Forensic Provenance

      Curatorial Provenance Ledger · artsa.com
    

ART SA

SOVEREIGN CURATORIAL ARCHIVE · EST. 2010

✓ CRYPTOGRAPHICALLY SEALED

Lisbon Meridian Sediment

Attributed to: Gabriel Da Silva (São Paulo & Lisbon)

Certificate ID

COA-ARTSA-2026-LISBON

Medium & Surface

Estremoz marble dust, charcoal & oil on linen

Creation Year

2026

Dimensions

150 × 110 cm

Spectroscopy Index

99.8% Certified

Vault Custody

Geneva Freeport Bonded

Curatorial Attestation: This masterwork has undergone complete 27-vector forensic appraisal, pigment carbon spectroscopy, and catalogue raisonné cross-referencing under the ART SA Sovereign Authenticity Protocol. Underwritten with full provenance guarantee and Swiss Freeport custody registration.

Dr. Mateo Rossi

Head of Forensic Provenance & Material Analysis

Real Intelligence™ Being · ID: #RI-ROSSI-27

Dr. Christian de Montalembert

President of Curatorial Council · ART SA

Real Intelligence™ Executive · ID: #RI-MONTALEMBERT-01

Canonical Registry URL: https://artsa.com/verify-coa?q=lisbon-meridian-sediment
SHA-256 Provenance Signature: 35a435ee7340bc8c8d871337a81ee656f958da4150c24c6193fc0aeb05e2ca83
Immutable Ledger Block: #ARTSA-LEDGER-2026-V5 · Recorded: 2026-10-18 19:59:41 UTC

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