# Blockchain Records

Blockchain is an integral part of the DEXPIRY system, which enables users to create, send and receive DEXPIRY tokens (ERC-721 NFT) through cryptographically authorized transactions.

Distributed records can be accessed through the Blockchain explorer or through the DEXPIRY application, which enables the distribution and circulation of DEXPIRY tokens between user addresses in real time.

Distributed records on the Blockchain are approved by the consensus of the Nodes and cannot be changed later.

Distributed records contain data related to individual [<mark style="color:green;">DEXPIRY tokens</mark>](/dexpiry_public_eng/system-components/dexpiry-token.md) stored on the Blockchain in the form of ERC-721 non-fungible tokens, as well as chronologically stored transaction data of all DEXPIRY tokens in circulation.


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