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So can a blockchain can be shutdown by shutting down power supply across the globe? What would happen in such a case? If the world's power supply was suddenly cut off, then everything electronic would stop working. The blockchain would be 'frozen', each node would retain its local copy, but be unable to communicate with other nodes, and miners would be ...


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I maybe wrong but what I think is Blockchain ledger exists as long as there are active nodes in the network. So can a blockchain can be shutdown by shutting down power supply across the globe? What would happen in such a case? If all the existing power supply suddenly and by magic shut down the ledger would be simply frozen but it would not disappear, it ...


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Welcome! I think one important thing to keep in mind is that even under normal circumstances the nodes are not necessarily all "synchronized." In fact overcoming this lack of instantaneous synchronization yet still ensuring eventual agreement on a single history is one of the amazing feats of bitcoin's protocol. In other words, at any given time node A on ...


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In any case, receiver (Coinbase) can't do much to make your transaction confirm faster. Except CPFP, but you can do the same with your change output, if you have it. But, as mentioned above, if tx fee really is 0, it will not be relayed by the network, as default relay fee is 1 satoshi per vbyte. Also, in 7 days it should have been confirmed, as mempool ...


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When you add a very small fee or no fee at all, as in your case, you'll need to ask for a special favor from a mining pool in order to get your TX in. It is possible to request, on exceptional basis, for a mining pool to include your transaction into one of their less busy blocks. They call this service "transaction accelerators". For instance, ViaBTC ...


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