2026
June 11, 2026 – Humans as Explorers N°1 – Mariana Trench
The first issue of the series “Der Mensch als Entdecker” leads us into the depths of the Marianengraben.
The Marianengraben, with a depth of around 11,000 meters, is a realm of over 1,000 bar of pressure, icy temperatures just above freezing, and absolute darkness. Due to these extreme conditions, only a few individuals—after the pioneering descent of Jacques Piccard and Don Walsh in 1960—managed to reach the “Challenger Deep” in the early 2000s. Among them were well‑known figures such as James Cameron (2012). In these uncharted depths live astonishing, partly unknown deep‑sea creatures that demonstrate how adaptable life can be. All of this makes the Mariana Trench a symbol of humanity’s desire to explore even the most inaccessible places on our planet.
 | Number: | Date | Designation |
| N°CS 6.0 | June 11, 2026 | Mariana Trench | |
| Quantity 50 000 ex | Categorie: Stamp + NFT | Crypto:POLYGON | Blockchain ERC – 721 |
| Contract Address | 0x18EA6E1dd7AFec7E8D95A78650566aeB66ABcC85 | ||
| Website | Blockchain operator |  | |
| https://www.deutschepost.de/de/k/kryptomarke.html | |||
| https://opensea.io/collection/deutsche-post-semperoper-dresden | https://ciphers.me/en | ||
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Orange
25 500 ex
The yeti crab, a well-known deep‑sea crab
The snailfish, the deepest‑living fish species
Dumbo octopus, an icon of the Mariana trench
A swarm of jellyfish with translucent tentacles
Deep, black empty Marianen trench
Green
17 500 ex
The yeti crab, a well-known deep‑sea crab
The snailfish, the deepest‑living fish species
Dumbo octopus, an icon of the Mariana trench
A swarm of jellyfish with translucent tentacles
Deep, black empty Marianen trench
Blue
5 000 ex
The yeti crab, a well-known deep‑sea crab
The snailfish, the deepest‑living fish species
Dumbo octopus, an icon of the Mariana trench
A swarm of jellyfish with translucent tentacles
Deep, black empty Marianen trench
Pink
2 500 ex
The yeti crab, a well-known deep‑sea crab
The snailfish, the deepest‑living fish species
Dumbo octopus, an icon of the Mariana trench
A swarm of jellyfish with translucent tentacles
Deep, black empty Marianen trench