[Metaplex and Crucible Sign Memorandum of Understanding for Gold Production Tokenization] According to TechFlow, on November 11th, Metaplex announced that the Metaplex Foundation has signed a memorandum of understanding with Crucible to collaborate on enabling the tokenization of gold production on Solana. This collaboration is based on the MPL-3643 standard, which is designed for permissioned real-world assets and tokenized securities on Solana.