開かれた心

Title: Un Corazon Abierto (An Open Heart) 
Edition: Limited edition of 20; B.A.T, 2 AP
Medium: Lithograph with mezzotint, Chine-collé, pencil
Image: 19.685 x 19.685 in (50 x 50 cm)
Sheet: 27.559 x 39.370 in (70 x 100 cm)
Chops: Artist's chop and Printer's Chop
Marks: Signed and numbered in pencil in verso
Date of Origination: 2011–2012
Collaboration: Maestro Abraham Torres
Master Printer: Maestro Abraham Torres & studio staff 
Taller: Taller de Artes BAMBÚ, Oaxaca, Mexico
Documentation: Certificate of Authenticity 
Rights: © 2026 Julia d'Arcy. All rights reserved. 
Photo Credit: David Reese Photography, S.C. CA

A certificate of authenticity (COA) is a document from an authoritative source that verifies the artwork’s authenticity. While many COAs are signed by the artist, others will be signed by the representing gallery or the printmaker who collaborated with the artist on the work. For secondary market works, authorized estates or foundations are often the issuing party. COAs typically include the name of the artist, the details (title, date, medium, dimensions) of the work in question, and whenever possible an image of the work.