Bitcoin Cash has updated to adjust the difficulty algorithm (DAA) in order to optimize the processing time of the blocks.
This algorithm is based on a 144-period simple moving average. The difficulty is adjusted each block, based on the amount of work done and the elapsed time of the previous 144 blocks.
To compute the difficulty, we begin with the three topmost blocks, and choose the one with the median timestamp of the three. Next, the process is repeated with blocks 144, 145, and 146 (blocks of 144-146 height less than the current) and a half timestamp block is again chosen from those 3.
From these 2 blocks roughly 144 blocks apart, we define W as the amount of work done between the blocks, and T the elapsed time between the blocks. A high-low filter is applied so that it has maximum value of 2 days and a minimum value of .5 days. This prevents difficulty from changing too abruptly. (Normally 144 blocks takes approximately 1 day).
We can then compute:
Wn = W * ExpectedBlockTime / T.
G = (2 ^ 256 / Wn) - 1
This is our difficult target. Lastly, the final filter is enforced to maximal target.
Activation of the new consensus rules will be done on a half-time basis basis on blocks that occur after timestamp 1510600000, which corresponds to November 13th, 7:06 PM GMT. This activation code has been merged.
This algorithm is based on a 144-period simple moving average. The difficulty is adjusted each block, based on the amount of work done and the elapsed time of the previous 144 blocks.
To compute the difficulty, we begin with the three topmost blocks, and choose the one with the median timestamp of the three. Next, the process is repeated with blocks 144, 145, and 146 (blocks of 144-146 height less than the current) and a half timestamp block is again chosen from those 3.
From these 2 blocks roughly 144 blocks apart, we define W as the amount of work done between the blocks, and T the elapsed time between the blocks. A high-low filter is applied so that it has maximum value of 2 days and a minimum value of .5 days. This prevents difficulty from changing too abruptly. (Normally 144 blocks takes approximately 1 day).
We can then compute:
Wn = W * ExpectedBlockTime / T.
G = (2 ^ 256 / Wn) - 1
This is our difficult target. Lastly, the final filter is enforced to maximal target.
Activation of the new consensus rules will be done on a half-time basis basis on blocks that occur after timestamp 1510600000, which corresponds to November 13th, 7:06 PM GMT. This activation code has been merged.
Comment:
When ASIA begins trading, BCH may go in the clouds.