Polygon Blockchain

What Is the Polygon Blockchain?

Polygon (formerly Matic Network) is an Ethereum layer-2 scaling solution on which most crypto stamp NFTs are stored as digital twins. Polygon combines Ethereum's security with lower transaction fees and higher speed.

Polygon in the Crypto Stamp Ecosystem

Polygon is the standard blockchain for almost all crypto stamp editions worldwide:

• AT joint editions: all (Bull 2022, Lion 2023, Dragon 2024, Mythology 2025)
• NL solo editions: NL Crypto Stamp Safe, NL Gold Edition
• Hrvatska Pošta: all CS1-CS7
• POST Luxembourg, bpost, CTT (since 2025): via the Variuscard platform

The choice of Polygon is strategically thoughtful: low gas fees make NFT activation possible for collectors without significant crypto knowledge.

Technical Fundamentals

• Consensus: Proof of Stake
• Confirmation time: ~2 seconds
• Gas fees: typically under 0.01 USD per transaction
• Ethereum compatibility: fully EVM-compatible
• Smart contracts: Solidity

Visual References in Crypto Stamps

Several crypto stamp designs use the Polygon reference visually:

• NL Lion 2023: the lion's face is built from geometric polygons — direct visual reference to the Polygon blockchain
• CS 4.0 Bull: similar polygonal design style
• General joint edition design: polygonal backgrounds as recurring element

Sandra Smulders (Vormgoed Gouda) established this design signature 2022-2023 as a visual bridge between physical stamp and digital NFT.

Activation of NFT Twins

Polygon NFT activation typically works like this:

1. Collector scans QR code on the stamp's back or uses NFC function
2. Activation code is entered on cryptostamp.com
3. NFT is registered on the Polygon blockchain
4. Collector learns the color variant of the NFT (5 different colors with different rarities)
5. NFT can be transferred to a MetaMask wallet (or compatible)

Collector Benefits

• Low activation costs: practically zero gas fees for standard activation
• OpenSea tradability: Polygon NFTs are tradable on OpenSea and other marketplaces
• Cross-edition consistency: all joint edition variants on the same chain
• Energy efficiency: Proof-of-Stake is significantly more economical than Proof-of-Work

Polygon is thus the structural backbone of the modern crypto stamp ecosystem — a pragmatic choice that makes the format accessible to mainstream collectors.