ChainCatcher news, Manta Network announced the launch of the privacy NFT / SBT issuance platform NPO (NFT Private Offering) based on zero-knowledge proofs (ZK). NPO is built on top of zkAddress and MantaPay's ZK circuits. Manta Network abstracts the ZK complexity, allowing developers to issue privacy NFTs and SBTs without needing to understand the technology or cryptography, simply by using the SDK.It is reported that zkNFTs and zkSBTs have the same ease of use as NFTs / SBTs and are plug-and-play, allowing developers to connect them with Web2 Apps or Web3 DApps, thereby binding on-chain information to off-chain applications through ZK Proof Key, creating new applications. (Source link)