On 10/15/19 12:20 AM, Joachim Strömbergson wrote: >>> [...] to generate much longer chain with superslow timestamp increase (~5 >>> blocks in 1 second) without increasing difficulty (i.e. staying at min. >>> diff.). [...] >> In that case, it would take about 7 minutes of block time seconds for >> the next retarget period, every 2016 blocks, and the difficulty would >> adjust. The difficulty would adjust in that case as if 2 weeks of blocks >> had been mined in 7 minutes. For the difficulty to remain the same the >> time between blocks needs to be 10 minutes. > This calculation does not apply under time warp attack. You can fake > timestamps of all blocks except for those relevant to the retarget > calculation. Those are only the first and the last block in the 2016 block > window.
This must be in reference to the non-overlapping difficulty calculation and off-by-one bug? _______________________________________________ bitcoin-dev mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
