Program line
Mainstream
The Mainstream line is the heart of Austrian Post's crypto stamp program: each issue pairs a postally valid stamp (face value EUR 0.80–8.80) with an NFT minted on a public blockchain. Crypto Stamp 1.0 (Unicorn, 2019) was the first such product worldwide. Mintages typically run 15,000–240,000 pieces, with sale prices clearly above face value (premium for NFC chip + NFT pairing). From Crypto Stamp 2.0 onward (2020), the line moved from Ethereum (ERC-721) to Polygon (ERC-1155) to keep activation and transfer fees low.
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- Typical mintage
- 15.000–240.000
- Typical price
- 8,90–24,90 EUR
- Blockchains
- ethereum, polygon
- First issued
- 2019-06-11
The Mainstream line is the backbone of Austrian Post's crypto stamp program: every issue pairs a postally valid stamp with an NFT minted on a public blockchain. It is the original concept since 2019 and defines what "crypto stamp" means in the strict sense — physical paper + chip + on-chain record.
Mintage and price
Mainstream editions typically ship in mintages between 15,000 and 240,000 pieces. Crypto Stamp 1.0 (Unicorn, 2019) had the highest initial mintage at 150,000 pieces; Crypto Stamp 2.0 (Honey Bee, 2020) reached 240,000. Later issues such as CS 6.0 (Zeus, 2025) were deliberately printed smaller — around 25,000 pieces — to strengthen collector value.
Sale prices run EUR 8.90–24.90 per piece, clearly above face value (typically EUR 0.80–8.80). The premium covers the NFC chip, NFT pairing infrastructure, and the Variuscard AES-SUN NDEF security layer.
Technology
Crypto Stamp 1.0 runs as ERC-721 on Ethereum Mainnet — each of the 150,000 mint numbers is a unique token. From CS 2.0 onward (2020) Austrian Post moved to Polygon with ERC-1155, which drops transaction costs to fractions of a cent and makes activation through crypto.post.at effectively gas-free.
Every stamp carries an NFC chip (Variuscard, Vienna) with AES-SUN NDEF security. A smartphone tap produces a signed URL that is verified against the on-chain mint records. Authenticity is therefore checkable both physically and digitally — a clear distinguishing feature versus pure-digital NFT drops.
Secondary market
CS 1.0 trades on OpenSea (Ethereum). From CS 2.0 onward the secondary market runs mainly through cryptostamp.com (the official platform with verified sellers) and OpenSea (Polygon). Prices vary by variant rarity and physical-stamp condition; the on-chain component stays uniquely attributable through every transfer.
Editions in this program
| Issued | Edition | ISO | Chain | Program |
|---|---|---|---|---|
| 2026-05-19 | Le Petit Prince et l'avion | FR | tezos | mainstream |
| 2026-05-19 | Le Petit Prince et le nuage | FR | tezos | mainstream |
| 2026-05-19 | Le Petit Prince et la balançoire | FR | tezos | mainstream |
| 2026-05-19 | Le Petit Prince et le renard | FR | tezos | mainstream |
| 2026-03-24 | NFTimbre 7 – Mont-Saint-Michel | FR | tezos | mainstream |
| 2026-03-01 | Three horse designs by Chrissy Lau | AU | polygon | mainstream |
| 2025-12-17 | NFTimbre 6 – Avatar | FR | tezos | mainstream |
| 2025-11-19 | CHLI 2.0 – Christmas Cow | CH | polygon | mainstream |
| 2025-11-19 | Cassius | AT | polygon | mainstream |
| 2025-11-07 | Five Croatian football legends | HR | polygon | mainstream |
| 2025-10-16 | Gold Edition Helios | AT | polygon | mainstream |
| 2025-10-02 | Semperoper Dresden | DE | polygon | mainstream |
| 2025-09-18 | Artemis | LU | polygon | mainstream |
| 2025-09-18 | Athena | BE | polygon | mainstream |
| 2025-09-18 | Crypto Stamp 6 – Hera | AT | polygon | mainstream |
| 2025-09-18 | Hermes | NL | polygon | mainstream |
| 2025-09-18 | Poseidon | PT | polygon | mainstream |
| 2025-09-18 | Crypto Stamp 6 – Zeus | AT | polygon | mainstream |
| 2025-09-16 | Gallic Rooster 2025 | FR | tezos | mainstream |
| 2025-08-05 | Bambu | AT | polygon | mainstream |
| 2025-08-01 | Blue Impulse 2025 | JP | — | mainstream |
| 2025-07-16 | Royal Golden Guernsey Billy Goat Cyberstamp | GG | — | mainstream |
| 2025-07-16 | Royal Golden Guernsey Nanny Goat Cyberstamp | GG | — | mainstream |
| 2025-07-03 | Speicherstadt Hamburg | DE | polygon | mainstream |
| 2025-06-25 | Raka | AT | polygon | mainstream |
| 2025-06-04 | Crypto Stamp CHLI 1.0 Cow | CH | ethereum | mainstream |
| 2025-06-04 | Eiffel Tower | FR | tezos | mainstream |
| 2025-03-13 | Posta Prioritaria 1999-2008 | IT | polygon | mainstream |
| 2025-03-12 | Digitalisation | AT | ethereum | mainstream |
| 2025-03-01 | Dancing Animals | LI | ethereum | mainstream |
| 2025-02-14 | With Love and Kisses | US | immutable-x | mainstream |
| 2025-01-31 | Third Lunar New Year edition of NZ Post on VeVe (after Rabbit 2023 and Dragon 2024) | NZ | immutable-x | mainstream |
| 2025-01-29 | Wood SnakeUSPS Camille Chew series 2020-2031 | US | immutable-x | mainstream |
| 2025-01-27 | 110 Years La Poste & Croix-Rouge française | FR | tezos | mainstream |
| 2024-12-19 | NZ Post Christmas 2024 – Christmas through the Window | NZ | immutable-x | mainstream |
| 2024-12-19 | Christmas Stamp Art | US | immutable-x | mainstream |
| 2024-11-21 | Posta Prioritaria 1999 | IT | polygon | mainstream |
| 2024-11-04 | Swiss Jass Cards | LI | ethereum | mainstream |
| 2024-10-21 | Dragon — Crypto Stamp 5.2 | AT | polygon | mainstream |
| 2024-10-21 | Dragon — bpost Crypto Stamp | BE | polygon | mainstream |
| 2024-10-21 | Dragon — Crypto Stamp 5.2 Luxembourg | LU | polygon | mainstream |
| 2024-10-10 | Neuschwanstein Castle | DE | polygon | mainstream |
| 2024-10-01 | Dragon — NL Crypto Stamp 3 | NL | polygon | mainstream |
| 2024-09-26 | /Imagine Ireland | IE | polygon | mainstream |
| 2024-09-09 | Croatian Crypto Stamp 6 – Šegrt Hlapić | HR | polygon | mainstream |
| 2024-09-02 | Oneiric story of a young woman | FR | tezos | mainstream |
| 2024-09-02 | Business Fox / Crypto Fox | LI | ethereum | mainstream |
| 2024-08-21 | Mercury | US | immutable-x | mainstream |
| 2024-07-11 | Mortadelo | ES | polygon | mainstream |
| 2024-07-04 | Trinity Lighthouse | GI | rsk-rootstock | mainstream |
| 2024-06-06 | Cologne Cathedral | DE | polygon | mainstream |
| 2024-05-04 | Tribute to King Otumfuo Osei Tutu II | GH | ethereum | mainstream |
| 2024-03-08 | White eagle (Polish coat of arms) and NATO logo (Compass Rose) on blue background symbolizing Atlantic and security | PL | polygon | mainstream |
| 2024-02-16 | Year of the Dragon Stamp Art (NZ Post) on VeVe platform | NZ | immutable-x | mainstream |
| 2024-02-10 | Year of the Dragon | US | immutable-x | mainstream |
| 2023-12-20 | Snow Globes | US | immutable-x | mainstream |
| 2023-12-17 | Sixth Bhutan Post NFT stamp edition | BT | polygon | mainstream |
| 2023-11-30 | Lion — Crypto Stamp 5.1 Gold Edition | AT | polygon | mainstream |
| 2023-11-09 | In the Skies | PL | polygon | mainstream |
| 2023-11-02 | Brandenburg Gate | DE | polygon | mainstream |
| 2023-10-29 | Halloween Stamp Art | US | immutable-x | mainstream |
| 2023-10-10 | Lion — Crypto Stamp 5.1 | AT | polygon | mainstream |
| 2023-10-10 | Lion — Crypto Stamp 5.1 | LU | polygon | mainstream |
| 2023-10-10 | Lion — NL Crypto Stamp 2 | NL | polygon | mainstream |
| 2023-10-09 | Fifth Bhutan Post NFT stamp edition | BT | polygon | mainstream |
| 2023-09-18 | Universe of correspondence | FR | tezos | mainstream |
| 2023-09-07 | Professor Balthazar | HR | polygon | mainstream |
| 2023-09-04 | Game Figure | LI | ethereum | mainstream |
| 2023-07-27 | Second Cpost NFT edition | CW | polygon | mainstream |
| 2023-07-14 | Wacken Wallet 2023 – Wacken Open Air | DE | polygon | mainstream |
| 2023-06-23 | Bear | AT | polygon | mainstream |
| 2023-06-23 | Safe | AT | polygon | mainstream |
| 2023-06-23 | Four seasons of the Faroe Islands with nature motifs (lamb | FO | polygon | mainstream |
| 2023-06-20 | **Pioneer edition of Curaçao and the Caribbean** | CW | polygon | mainstream |
| 2023-06-10 | 1898 Pictorials Re-issue 2023 – 1898 Pictorials | NZ | immutable-x | mainstream |
| 2023-06-04 | Fourth Bhutan Post NFT stamp edition | BT | polygon | mainstream |
| 2023-06-03 | US Presidents | US | immutable-x | mainstream |
| 2023-05-02 | Swiss Crypto Stamp 3.0 – AI-generated artworks | CH | ethereum | mainstream |
| 2023-04-26 | 15 historical Romanian stamps as NFTs | RO | multiversx | mainstream |
| 2023-03-29 | Beautiful Friendship – Romero Britto | LI | ethereum | mainstream |
| 2023-02-28 | Portuguese Caravel | PT | polygon | mainstream |
| 2023-02-23 | Bhutan NFT Stamp 3 – Paro Taktshang | BT | polygon | mainstream |
| 2023-01-21 | Year of the Rabbit | US | immutable-x | mainstream |
| 2023-01-16 | Posukuma | JP | rakuten-private | mainstream |
| 2022-12-23 | Holiday Elves 2022 – USPS VeVe Stamp Art | US | immutable-x | mainstream |
| 2022-12-20 | Nikola Tesla | HR | polygon | mainstream |
| 2022-12-07 | NFT re-issuance of the historical 2016 "Five Decades' Favorite Stamps" series | BW | polygon | mainstream |
| 2022-12-06 | Poland Crypto Stamp 1 – Polish Space Missions | PL | polygon | mainstream |
| 2022-12-01 | Animal Characters with Accessories | LI | ethereum | mainstream |
| 2022-11-18 | UN Crypto Stamp Series II – Peace Symbols | INTL | ethereum | mainstream |
| 2022-10-18 | Polski Crypto Token 2022 – Sigismund II Augustus | PL | polygon | mainstream |
| 2022-10-03 | Animals | JP | rakuten-private | mainstream |
| 2022-09-22 | Bull — Crypto Stamp 4.0 | AT | polygon | mainstream |
| 2022-09-22 | Bull — Crypto Stamp 4 | NL | polygon | mainstream |
| 2022-09-20 | Pioneer NFT stamp of Bhutan and **first NFT stamp of Asia** on Stampsdaq | BT | polygon | mainstream |
| 2022-09-09 | Princely House of Liechtenstein | LI | ethereum | mainstream |
| 2022-08-08 | Swiss Crypto Stamp 2.0 – Swiss film | CH | ethereum | mainstream |
| 2022-07-09 | Benjamin Franklin 1¢ Stamp 1861 | US | immutable-x | mainstream |
| 2022-06-07 | Princess Marie Memorial Edition | LI | ethereum | mainstream |
| 2022-04-22 | Earth Day Stamp Art | US | immutable-x | mainstream |
| 2022-02-01 | Year of the Tiger | US | immutable-x | mainstream |
| 2022-01-31 | USPS Zodiac Animal Masks | US | immutable-x | mainstream |
| 2021-12-24 | Holiday Designs | US | immutable-x | mainstream |
| 2021-12-02 | 50th National Day of the UAE | AE | polygon | mainstream |
| 2021-11-25 | Swiss Crypto Stamp 1.0 | CH | ethereum | mainstream |
| 2021-11-02 | Day of the Dead | US | immutable-x | mainstream |
| 2021-10-21 | Cat | AT | ethereum | mainstream |
| 2021-10-21 | Rhino | AT | ethereum | mainstream |
| 2021-09-09 | Postereum 3 – Rimac Nevera | HR | ethereum | mainstream |
| 2021-09-06 | Crypto Stamp 4.0 – Perspective | LI | ethereum | mainstream |
| 2021-06-21 | Whale | AT | ethereum | mainstream |
| 2021-05-17 | Cryptocurrency Stamp 2021 – Gibraltar Blockchain Hub | GI | rsk-rootstock | mainstream |
| 2020-12-16 | Historical Postal Delivery | HR | ethereum | mainstream |
| 2020-11-24 | UN Crypto Stamp Series I – UN Headquarters & 17 SDGs | INTL | ethereum | mainstream |
| 2020-09-09 | Crypto Stamp 1 – Vehicles | HR | ethereum | mainstream |
| 2020-06-25 | Doge | AT | ethereum | mainstream |
| 2020-06-25 | Honey Badger | AT | ethereum | mainstream |
| 2020-06-25 | Lama | AT | ethereum | mainstream |
| 2020-06-25 | Panda | AT | ethereum | mainstream |
| 2019-06-11 | Unicorn | AT | ethereum | mainstream★ |
| 2019-05-10 | Six stamps per block with Marshall Islands beaches in silver holographic foil | MH | ethereum | mainstream |
Frequently Asked Questions
What distinguishes the Mainstream line from the Gold, Art, and Safe sub-lines?
Mainstream is mass-issue: typical mintage 15,000–240,000, sale price EUR 8.90–24.90. Gold editions embed a 1g gold bar from Münze Österreich (mintage 350–500, price ~EUR 500). Art editions are limited artist collaborations. Safe editions target cold-storage use cases. Mainstream is the line for regular collectors without niche requirements.
On which blockchains are Mainstream crypto stamps minted?
Crypto Stamp 1.0 (2019) runs on Ethereum Mainnet (ERC-721, mint numbers 1–150,000). From Crypto Stamp 2.0 onward (2020), Austrian Post moved to Polygon (ERC-1155) to keep activation and secondary-market transfer fees low. Collectors can trade CS 1.0 on OpenSea (Ethereum); from CS 2.0 onward the secondary market runs mainly through cryptostamp.com and OpenSea (Polygon).
How many editions does the Mainstream line have?
As of early 2026, the Mainstream line has eight main issues: Crypto Stamp 1.0 (Unicorn, 2019), 2.0 (Honey Bee, 2020), 3.0 (Eagle, 2021), 4.0 (Swan, 2022), 5.0 (Dog, 2023), 6.0 (Zeus, 2025), plus companion editions such as the 2025 Mythology family. Mintages vary widely: CS 1.0 had 150,000 pieces, CS 6.0 (Zeus) shipped at ~25,000.
Where can I buy Mainstream crypto stamps?
Primary issue: any branch of Austrian Post plus the post.at online shop during the sale window (typically 6–12 weeks from release). Secondary market: cryptostamp.com (the official platform with verified sellers), OpenSea (Polygon for CS 2.0+; Ethereum for CS 1.0), or peer-to-peer via the crypto stamp community. NFT-side activation always runs through crypto.post.at.
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