Index · Edition · chli-3-0-2026
Crypto Stamp «CHLI» 3.0
Third Switzerland-Liechtenstein joint issue – 8 June 2026
First single crypto stamp valid for postage in both countries, with an on-chain "burn or save" mechanic
CHLI 3.0 of 8 June 2026 is the third joint crypto stamp of Swiss Post and Liechtensteinische Post. The motif is an AI-generated cow (Midjourney) with an interactive on-chain mechanic: owners can "burn or save the cow" — a playful, irreversible decision made directly on the blockchain. CHLI 3.0 is also the first single crypto stamp valid for postage in both countries. 6 color variants per country: Green (2,000), Blue (1,000), Yellow (500), Orange (300), Pink (150), Rainbow (50) — 4,000 per country.
Variants
| Variant | Variant | Color | Mintage | Rarity |
|---|---|---|---|---|
| Regenbogen | 50 | 1 | ||
| Pink | #FFC0CB | 150 | 2 | |
| Orange | #FF8C00 | 300 | 3 | |
| Yellow | #F5C518 | 500 | 4 | |
| Blue | #1F4FA8 | 1,000 | 5 | |
| Green | #3F8B3F | 2,000 | 6 |
About CHLI 3.0
The Crypto Stamp «CHLI» 3.0 of 8 June 2026 is the third joint crypto stamp of Swiss Post and Liechtensteinische Post. After the shared motif of CHLI 1.0 and the split-halves mechanic of CHLI 2.0, CHLI 3.0 adds two firsts: an interactive on-chain "burn or save" mechanic, and validity for postage in both countries as a single stamp.
Interactive Mechanic: Burn or Save the Cow
The central innovation of CHLI 3.0 is an interactive on-chain mechanic. Each stamp carries an AI-generated cow (Midjourney), and the owner faces a choice recorded directly on the blockchain:
- Save the cow — keep the NFT in its original state
- Burn the cow — an irreversible action that permanently changes the NFT's state
Because the burn is on-chain and irreversible, the effectively remaining supply of "saved" cows can shrink over time. This turns a static collectible into a participatory one: the collector's decision becomes part of the object's history.
Curator note: the mechanic is described from published CHLI 3.0 material. The precise contract behaviour (what a burn does to metadata, whether it mints a burned-state token, etc.) is not verified on-chain here.
First Single Stamp Valid in Both Countries
Where CHLI 2.0 was structurally split into a Swiss half and a Liechtenstein half, CHLI 3.0 is the first single crypto stamp of the series valid for postage in both countries — Switzerland and Liechtenstein. One physical stamp value covers mailing in two jurisdictions, deepening the bilateral CHLI bracket at the practical franking level.
Mintage and Colour Scale
CHLI 3.0 has 6 colour variants. The figures below are per country; across both countries the total is 8,000.
| Colour | Mintage / country | Rarity |
|---|---|---|
| Green | 2,000 | Most common (CHF 9.90) |
| Blue | 1,000 | Common |
| Yellow | 500 | Mid-tier |
| Orange | 300 | Mid-tier to rare |
| Pink | 150 | Rare |
| Rainbow | 50 | Rarest |
Chain and Contract
- Chain: Polygon
- Token standard: ERC-1155
- Contract:
0x6Da363efD7F87e605b7d43b3DbEb745296878799
Curator note: the contract address is page-extracted from published material, not on-chain-verified. Treat it as provisional until confirmed against the deployed Polygon contract.
Position in the CHLI Line
- CHLI 1.0 (2025): shared Matterhorn + Vaduz Castle + crypto cow motif
- CHLI 2.0 (2025): split-halves mechanic (left = CH, right = LI), seasonal winter motif
- CHLI 3.0 (2026): interactive burn/save mechanic, single stamp valid in both countries
Each CHLI edition escalates the bilateral concept — from a shared picture, to a physically split set, to an interactive on-chain object that both postal services back jointly.
Frequently Asked Questions
What is the "burn or save the cow" mechanic?
CHLI 3.0 introduces an interactive on-chain mechanic: owners of the stamp can either "burn" or "save" their AI-generated cow — a decision made and recorded directly on the blockchain. A burn is irreversible and permanently changes the NFT’s state. This mechanic turns the stamp into an interactive collectible whose supply and distribution can shift over time through user decisions — a first for the CHLI series.
Why is CHLI 3.0 valid for postage in both countries?
Unlike CHLI 2.0, which was structurally split into two country halves, CHLI 3.0 is the first single crypto stamp of the series that is valid for postage as one stamp in both countries — both Switzerland and Liechtenstein. A single physical stamp value therefore covers postal mailing in two countries. This deepens the bilateral CHLI bracket at the practical franking level and is a further step in the cooperation between Swiss Post and Liechtensteinische Post.
How is the mintage of CHLI 3.0 distributed?
Per country, 4,000 pieces are minted, distributed across 6 color variants: Green 2,000, Blue 1,000, Yellow 500, Orange 300, Pink 150, Rainbow 50. Across both countries (Switzerland + Liechtenstein) this gives a total mintage of 8,000 pieces. The rarity order runs from Rainbow (rarest, 50/country) to Green (most common, 2,000/country). The interactive burn mechanic can further reduce the effectively remaining supply over time.
References
- officialCrypto Stamp «CHLI» — Swiss Posten
- officialSwiss Crypto Stamp — Questions and Answersen
- officialCHLI 3.0 — Philatelie Liechtensteinen