Index · Edition · pl-cs-1-poland-in-space-2023
Polish Crypto Stamp – Poland in Space
Poland's first crypto stamp series
Four space missions plus AI-generated Cat-5 edition, Designer: Roch Stefaniak after Bartosz Morawski
Poczta Polska issued the first Polish crypto stamp series in December 2022 — Polska w Kosmosie (Poland in Space). Released in two phases: 6 December 2022 (physical stamps) and Q1 2023 (NFT twins via Polygon ERC-1155). Four designs featuring Polish space missions: EarthCARE (ESA+JAXA Earth observation), BRITE-PL (Lem+Heveliusz microsatellites 2013/2014), PROBA (ESA mission), OPS-SAT (ESA Operational Software Satellite). Additionally a fifth category: purely digital AI NFT (1,530 ex), without physical counterpart. Crypto edition mintage: 175,000 physical crypto stamps in four categories (EarthCARE 100,000, BRITE 50,000, PROBA-3 20,000, OPS-SAT 5,000) plus 1,530 digital-only AI NFTs (176,530 tokens on-chain); the 400,000 figure (100,000 blocks of 4) belongs to the separate traditional non-crypto issue of 6 December 2022. Face value: 3.90 PLN. Format: 31.25 × 43 mm, offset print on fluorescent paper. Printer: PWPW (Polska Wytwórnia Papierów Wartościowych). Partner: Polska Agencja Kosmiczna (POLSA). NFT price: 12 MATIC per crypto stamp, 10 MATIC for AI Cat-5.
Variants
| Variant | Variant | Mintage | Rarity |
|---|---|---|---|
| S. I. 01 | 1,530 | 1 | |
| OPS-SAT | 5,000 | 2 | |
| PROBA-3 | 20,000 | 3 | |
| BRITE | 50,000 | 4 | |
| EarthCARE | 100,000 | 5 |
Image: Poczta Polska
About Polski Kryptoznaczek 1.0 — Poland in Space (2022/2023)
Poczta Polska issued its first hybrid crypto stamp series themed Polska w Kosmosie (Poland in Space). Launched in two phases: 6 December 2022 (traditional version) and Q1 2023 (NFT twins via Polygon). The edition comprises four Polish space missions plus a fifth AI-generated NFT-only variant.
Core Data
| Detail | Value |
|---|---|
| Traditional launch | 6 December 2022 |
| NFT launch | Q1 2023 (January/February) |
| Number of stamps | 4 + 1 Cat-5 (AI-only) |
| Mintage per category | 100,000 / 50,000 / 20,000 / 5,000 (EarthCARE / BRITE / PROBA-3 / OPS-SAT) |
| Total physical (crypto edition) | 175,000 (the 400,000 = 100,000 blocks of 4 are the separate traditional non-crypto issue of 6 December 2022) |
| Cat-5 AI NFT | 1,530 ex |
| Face value | 3.90 PLN |
| NFT price | 12 MATIC |
| Cat-5 price | 10 MATIC |
| Stamp format | 31.25 × 43 mm |
| Offset on fluorescent paper | |
| Printer | PWPW (Polska Wytwórnia Papierów Wartościowych) |
| Designer | Roch Stefaniak (based on Bartosz Morawski) |
| Partner | Polska Agencja Kosmiczna (POLSA) |
| Tech | Polygon ERC-1155 |
Four Polish Space Missions
The edition documents Polish space research participation:
1. EarthCARE
- ESA + JAXA Earth observation mission
- Polish participation in cloud-aerosol-radiation monitoring
- Co-organized with Japanese National Institute (NICT)
2. BRITE-PL
- Microsatellites Lem (21 November 2013) and Heveliusz (19 August 2014)
- Canadian-Austrian-Polish collaboration (BRITE Constellation)
- Astronomy & brightness measurements of bright stars
3. PROBA
- ESA Project for On-Board Autonomy
- Technology demonstrator mission
- Polish participation in software development
4. OPS-SAT
- ESA Operational Software Satellite
- Open-source software platform for experiments
- Polish participation in mission operations
Cat-5 AI: Digital-Only Variant
The fifth category is a purely digital NFT without physical stamp:
- Mintage: 1,530 ex (compared to 5,000–100,000 per physical category)
- Tech: Polygon ERC-1155 NFT
- Theme: AI-generated art interpretation of Polish space research
- Format: First pure digital Cat-5 variant in crypto stamps
- Price: 10 MATIC
The Cat-5 format appeared in subsequent editions:
- In the Skies (2023): 4 Cat-5 versions designed by Topteam (community member)
- Later editions continue the Cat-5 bonus element pattern
Designer and Printer
Designer: Roch Stefaniak, based on layout templates by Bartosz Morawski (graphic designer). Roch Stefaniak has designed numerous stamp editions for Poczta Polska.
Printer: PWPW (Polska Wytwórnia Papierów Wartościowych — Polish Securities Printing Works). PWPW has over 100 years of experience in security printing (banknotes, passports, stamps) and produces the physical crypto stamps with counterfeit protection.
Partner: Polska Agencja Kosmiczna (POLSA)
The Polish Space Agency served as edition partner:
- Founded 2014 as national space agency
- Participation in ESA programme
- Provided theme authenticity and mission data
POLSA participation ensures the stamps document actual Polish space history.
Tech Stack
Polski Kryptoznaczek technical implementation:
- Polygon blockchain (Ethereum L2)
- ERC-1155 multi-token standard (all 5 categories in one smart contract)
- MetaMask wallet connection for NFT transfer
- OpenSea secondary market for trading
- QR code on physical stamp for NFT activation
Workflow:
- User buys physical stamp (3.90 PLN) or NFT (12 MATIC)
- QR code scan with MetaMask
- NFT transfers to user wallet
- Optional: trading on OpenSea
Position in Crypto Stamp History
This edition marks several firsts:
- Poland's first hybrid crypto stamp (after pure-NFT Thaler August)
- First Cat-5 AI NFT (purely digital category)
- Three-format system (perforated, NFT, Cat-5)
- POLSA partnership for scientific documentation
- PWPW printer involvement for security standards
- 175,000 physical crypto stamps plus 1,530 digital-only (176,530 in total)
- Foundation for subsequent Polski Kryptoznaczek editions
Comparison with Other First Crypto Stamps
| Issuer | First edition | Mintage | Theme | Cat-5? |
|---|---|---|---|---|
| AT (Variuscard) | CS 1.0 Unicorn | 150,000 | Mythological | No |
| HR (Hrvatska Pošta) | CS 1 Vehicles | 100,000 | Transport | No |
| LI (Stamp 4.0) | Perspective | 42,000 | National identity | No |
| PL (Polski Kryptoznaczek) | Polska w Kosmosie | 176,530 | Science | Yes (1,530) |
| CH (Swiss Post) | Crypto Stamp 1.0 | 175,000 | National landmarks | No |
Polski Kryptoznaczek introduced the Cat-5 NFT-only bonus category — a format unique among crypto stamp issuers.
Frequently Asked Questions
What is the Cat-5 AI edition?
The Cat-5 AI is a purely digital bonus edition with no physical stamp. This AI-generated art on the theme Polska w Kosmosie has a mintage of 1,530 copies — significantly smaller than the 5,000 to 100,000 per physical category. As a Polygon ERC-1155 NFT, it artistically interprets Polish space research. This first pure-digital Cat-5 variant in the crypto stamp industry was likely conceived by project lead Dariusz Tyszka. The innovation was later repeated for the In the Skies edition, where community member Topteam designed the Cat-5. No other postal operator has a systematic NFT-only bonus category like Cat-5.
How can you buy the crypto stamps?
Physical stamps cost 3.90 PLN via sklep.poczta-polska.pl or selected post offices. NFT tokens cost 12 MATIC (approximately 7-15 EUR depending on MATIC rate) via nft.poczta-polska.pl with MetaMask wallet connection. After purchase, you receive a QR code link, scan it with MetaMask or a compatible Polygon wallet, and the NFT transfers to your wallet. Secondary trading happens on OpenSea after activation. Stamp and NFT are sold separately — you can buy just the NFT or just the stamp, but the complete crypto stamp experience comes from the combo bundle.