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    Author Topic: == Bitcoin challenge transaction: ~1000 BTC total bounty to solvers! ==UPDATED==  (Read 60443 times)
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    MrFreeDragon
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    May 08, 2020, 02:41:27 PM
     #121

    -snip-
    [~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~]
    [pubkey#80] loaded
    [Xcoordinate] DA86242845A4DEC981F5DDD32E06A85DE4A39802A3E70**********(edited)
    [Ycoordinate] 204AA341F6415953C176BE0CD93DFD3E51CA3BE8457EEB33275BB45B1B995D8A
    [~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~]
    -snip
    But AFTER 24H I not found a privkey for pubkey.
    -snip-

    It is strange you did not find the 80bit key (with range width 2^79) for 24 hours.... Probably the program does not work properly.
    Use the program developed by Jean_Luc - https://github.com/JeanLucPons/Kangaroo/releases

    His Kangaroo solver needs only 1 hours 15 minute to solve 2^80 range on Tesla T4, so for your key in range 2^79 you need only 40 minutes approximately.

    Here is the example to solve 2^80 range on Tesla T4 (i stopped and started the job several times for experimental purposes, so the total duratin was 2 times longer do to these experiments:

    Code:
    $ ./kangaroo -gpu -t 0 -i work80.txt -wi 100 -w work80.txt
    Kangaroo v1.4notready
    Loading: work80.txt
    Start:B60E83280258A40F9CDF1649744D730D6E939DE92A2B00000000000000000000
    Stop :B60E83280258A40F9CDF1649744D730D6E939DE92A2BE19BFFFFFFFFFFFFFFFF
    Keys :1
    LoadWork: [HashTalbe 231.6/296.0MB] [00s]
    Number of CPU thread: 0
    Range width: 2^80
    Jump Avg distance: 2^40.03
    Number of kangaroos: 2^20.32
    Suggested DP: 19
    Expected operations: 2^41.26
    Expected RAM: 394.2MB
    DP size: 18 [0xffffc00000000000]
    GPU: GPU #0 Tesla T4 (40x64 cores) Grid(80x128) (129.0 MB used)
    SolveKeyGPU Thread GPU#0: creating kangaroos...
    SolveKeyGPU Thread GPU#0: 2^20.32 kangaroos [7.6s]

    ...............

    [575.19 MK/s][GPU 575.19 MK/s][Count 2^42.26][Dead 0][02:22:27 (Avg 01:16:06)][616.2/776.8MB]
    Key# 0 [1S]Pub:  0x0284A930C243C0C2F67FDE3E0A98CE6DB0DB9AB5570DAD9338CADE6D181A431246
           Priv: 0xB60E83280258A40F9CDF1649744D730D6E939DE92A2BE19B0D19A3D64A1DE032

    [  0] 2^38.372 Dead:0 Avg:2^38.372 DeadAvg:0.0 (2^41.256)

    Done: Total time 02:22:38



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