Quiet stone.

MTTH · 2025 · ED. OF 3

Seal · M-0004

Authenticated 11 Dec 2025

A small bronze, palm-sized. Cast at Fonderie du Rhône.

Medium: Patinated bronze
Dimensions: 16 × 9 × 11 cm
Edition: Ed. of 3
Current holder: Mtth · Lausanne · since 11 Dec 2025
Twin level: Level 2 · 3D ready

Price

4 800 CHF

Ask the studio

The three layers

Authentication, in triplicate.

01 · Cryptographic chip

NFC · NTAG 424 DNA

66:AA:01:23

A tamper-evident chip, embedded under the wax seal. Cryptographically unique, physically destroyed if removed.

02 · Wax + synthetic DNA seal

SEQ M-0004

Applied by the artist

Every artist gets a unique DNA sequence. The seal is applied by hand — the gesture itself becomes part of the authentication.

03 · Visual fingerprint

98% match

8× macro · computer vision

Every work has an HD visual signature — the micro-imperfections of the material, captured at the moment of signing. Unforgeable.

Provenance · public ledger

Where this work has been.

11 DEC 2025Mtth · Lausanne

Visible to the holder

A private back.

If you are the current holder, sign in to see the full ledger of previous owners, the original invoice, the conservation log, and your private valuation.