Sidewalk window in Coimbra, Portugal. Photo by the author.

What is Cryptocurrency

Blockchain and NFT

“The blockchain is an incorruptible digital ledger of economic transactions”

Cryptocurrency is a digital or virtual coin secured by cryptography, which makes it next to impossible to counterfeit.

A cryptocurrency or “crypto” is a digital currency that can be used to buy goods and services. It uses an…




Visual artist. Writer. Civil engineer.

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Regia Marinho

Regia Marinho

Visual artist. Writer. Civil engineer.

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