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Verifiable Credentials (VC) are a digital version of our regular plastic ID cards, documents, or diplomas, issued to us by a specific issuer. They are issued and cryptographically signed documents, intended to be understood by computers rather than people. The public key is stored in a blockchain, and upon request, it is handed over in the form of a decentralized identifier document (DID document) to a Verifier. By doing so, the verification party does not come into any direct contact with blockchain.