Downloadable audio and video recordings featuring invitations and mvites authenticated by non-fungible tokens (NFTs); Downloadable audio recordings featuring invitations and mvites authenticated by non-fungible tokens (NFTs); Downloadable computer software for accessing, reading, and tracking information in the field of invitations and mvites on a blockchain; Downloadable computer software for managing and validating cryptocurrency transactions using blockchain-based smart contracts; Downloadable computer software for managing and verifying cryptocurrency transactions on a blockchain; Downloadable computer software for managing cryptocurrency transactions using blockchain technology; Downloadable image files containing invitations and mvites authenticated by non-fungible tokens (NFTs); Downloadable multimedia file containing artwork relating to invitations and mvites authenticated by non-fungible tokens (NFTs); Downloadable multimedia file containing artwork, text, audio, and video relating to invitations and mvites authenticated by non-fungible tokens (NFTs); Downloadable multimedia file containing audio relating to invitations and mvites authenticated by non-fungible tokens (NFTs); Downloadable multimedia file containing text relating to invitations and mvites authenticated by non-fungible tokens (NFTs); Downloadable multimedia file containing video relating to invitations and mvites authenticated by non-fungible tokens (NFTs); Downloadable printable stationery materials, namely, invitations and mvites; Downloadable software for blockchain-based inventory management; Downloadable video recordings featuring invitations and mvites authenticated by non-fungible tokens (NFTs)