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Bitcoin Cryptocurrency Mastering Development

Is the intex db downloaded from peers or generated locally?

When the user start the Bitcoin client for the first time, it will download the whole blockchain. But what about the block index (blkindex.dat in older versions) ? Is it donwloaded from peers just like the blockchain or generated locally from the downloaded blockchain? Then, does it depend upon the implementation (or version) or will […]

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Bitcoin Cryptocurrency Development

How to get the private keys out of old wallet.dat without syncing blockchain

I have old wallet.dat files of Bitcoin, Litecoin, Bitcoin Cash, Omnicore. My Bitcoin Cash wallet.dat has unbroadcasted transactions inside, so I am afraid that others might also have unbroadcasted transactions. So, currently nodes are not running and I want to dump private keys of those wallets and import into new wallets in a way so […]

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Bitcoin Cryptocurrency Development

dogecoind.exe shows nothing when running

When I run, take an example, bitcoind.exe (for BTC and BCH) or dashd.exe (for DASH) or litecoind.exe (for LTC), the command line window will show up, and will sync if it hasn’t been synced. But when I run dogecoind.exe in cmd, it shows nothing and just get stuck there… I originally guessed bitcoin, bitcoin cash, […]