log.info("NPC " .. tostring(listener_npc_id) .. " heard hello from " .. tostring(from_serial))
2) What is Blockchain?A blockchain is a distributed digital ledger that allows for the secure storage of data. By recording any kind of information—such as bank account transactions, the ownership of Non-Fungible Tokens (NFTs), or Decentralized Finance (DeFi) smart contracts—in one place, and distributing it to many different computers, blockchains ensure that data can’t be manipulated without everyone in the system being aware.
，详情可参考电影
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UK police search journalist’s home in China spy probe
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