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When writing a blockchain parser I've found that some blk00*.dat files contain zeros instead of blocks. (I got zero where magic bytes were expected, looked in the file and saw there are more zeros.)

What does it mean? Do I have corrupted chain? How do I fix my parser, so it would interpret the file correctly?

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zero instead of magic bytes means the end of bictoin block data. just skip the rest of file and follow to next blk-file

by the way. it is better to assemble blk-files for future parsing with old clients (I use 0.8.5) because they put blocks in right order

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  • I've checked that the block in the next file points to hash of previous one and indeed, it does. Thank you! – Martin Habovštiak Sep 6 '16 at 15:33

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