Abstract: A method and an apparatus for implementing a derivative NFT and a computer-readable storage medium are disclosed, and the method includes providing a smart contract and changing an owner of each of one or more source NFTs to the provided smart contract, minting a derivative NFT in the provided smart contract, with the derivative NFT representing derivative works derived from works represented by the one or more source NFTs, and recording a derivation relationship between the derivative NFT and the one or more source NFTs. With the use of the method, there is provided a way of representing the derivative works on the blockchain in such a way that the derivation of the derivative works from the source works is clearly indicated, thereby enabling the on-chain transaction of the derivative works.

Abstract: A method and an apparatus for minting an NFT, as well as a method and an apparatus for verifying a role associated with an NFT are disclosed. The method for minting an NFT includes: acquiring metadata of an NFT to be minted, where the metadata includes a role type of each of at least one role associated with the NFT to be minted and a common name corresponding to the role type; signing the metadata, by each of the at least one role, using a private key that corresponds to a public key contained in a digital identity certificate of the role, to obtain a signature by the role; and minting an NFT on chain based on the metadata. As such, the authenticity of information in the metadata can be verified by the signatures.

Abstract: A method for processing keystrokes is described herein. A first keystroke representing a symbol for a first operating system may be received on a first computer. The first keystroke may be translated to a second keystroke representing the symbol for a second operating system on a second computer. The second operating system is different from the first operating system. The second keystroke may be sent to the second computer.

Abstract: A method for processing keystrokes is described herein. A first keystroke representing a symbol for a first operating system may be received on a first computer. The first keystroke may be translated to a second keystroke representing the symbol for a second operating system on a second computer. The second operating system is different from the first operating system. The second keystroke may be sent to the second computer.