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Many wallet software obfuscate the information about payment and change address in order to protect the privacy of the user. When you see block explorer websites showing addresses in the outputs as change addresses, they are merely guessing as there is no sure shot way of knowing. Some of the techniques used to identify change addresses are below. I have ...


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The first 4 bytes of every message sent over the bitcoin network protocol contain a "magic number," which identifies it as Bitcoin or some other chain. Bitcoin's magic number for mainnet is 0xD9B4BEF9. Anyone forking the code to implement a different chain should use a new magic number to distinguish it from Bitcoin. You could technically have multiple ...


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Bitcoin is programmed to accept the most proof-of-work chain, which is many times also the longest chain. Every new block added to the blockchain references the previous block with its hash. Based on your question, there are a number of cases that I have come up with and how your new 'forked' blockchain will react. You run the same software that Bitcoin is ...


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