ChainCatcher news, Bitcoin NFT Launchpad Luminex officially releases the BRC69 standard, which utilizes recursive inscriptions to optimize the cost of minting NFTs on Bitcoin using the Ordinals protocol. This standard retains all on-chain resources while achieving over 90% block space optimization.In addition, the BRC69 standard also helps to enable more on-chain functionalities, such as issuing unopened NFT series and on-chain opening. (Source link)