Example with 40bits key
pubkey: 03a2efa402fd5268400c77c20e574ba86409ededee7c4020e4b9f0edbee53de0d4
priv: 0xe9ae4933d6
We get a wild DP from savefile, x-coord and distance
2bff14d4321506319af572ab7604e22f2d172 0000000000000000000000100d3439c4
Distance: 0x100d3439c4
Starting point (offset): 2^39 = 0x8000000000
0xe9ae4933d6 + 0x100d3439c4 - 2^39 = 0x79bb7d6d9a
The tame distance 0x79bb7d6d9a returns X-coord 0000157f1985299f1bda6646dd76bff14d4321506319af572ab7604e22f2d172.