Prism Key — Crypto stamp Comic #2

Crypto stamp Comic #2 — Prism Key (November 2025)

Österreichische Post published Crypto stamp Island – Schlacht der Spiegel (Battle of the Mirrors) on 19 November 2025 as the second Crypto stamp comic, released together with the Crypto stamp Cassius and presented at the Vienna Comic Con on 22 and 23 November 2025, where the artists held signing sessions at the post's booth. The launch followed a creepypasta-style Halloween campaign that seeded viral horror stories about the new antagonist. In the story an unstable portal opens a forgotten gate to the mirror world; the heroes face distorted identities, betrayal and Cassius — the dark mirror image of the wizard Lucian — before destroying the key at the end of the battle. Each booklet includes an exclusive collector's poster by Mahmud Asrar.

The numbered edition of 3,000 copies each carries an integrated NFT, the Prism Key — the artefact that must never exist in full again, which is why it is split across all readers. The NFTs mint from their own ERC-721 contract on Polygon (on-chain name "Crypto stamp Comic Prism Key") in the five classic colours. The post sold a Crypto stamp Cassius Bundle (Cassius stamp plus the comic, 900 copies) for €19.50 in its online shop; a standalone price for the booklet was not published in the sources we checked.

Curator note: modelled as collection_marker — a comic booklet with an integrated NFT, no franking value, sold as a companion to the Cassius release. Total 3,000 confirmed on-chain (totalSupply), by IPC and OTS; per-colour counts and a standalone price are not published. Images pending. Reviewed 2026-09-20.