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Croatia The Croatian crypto stamp is envisioned as the perfect combination of the analogue and the digital. After purchasing the crypto stamp, the part used for paying the postage may be detached, while the digital part remains to be used in the blockchain. On the blockchain, stamps are represented as so-called irreplaceable or non-fungible token (NFT) according to the ERC721 standard. Such non-fungible tokens have collectible value, just like classic stamps, which means that philately is faithfully transposed into the digital world. Such tokens are located on the Ethereum network, thus they have the potential to live forever, which adds another dimension to philately – protection from deterioration caused by the passage of time.

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