Topic: Bitcoin puzzle transaction ~32 BTC prize to who solves it - page 118. (Read 215611 times)

Take pub x that is the pub of priv key y
subtract or add 0xf or 16 from it and you get
pub z
etc
etc

import os, random, time
from contextlib import contextmanager

@contextmanager
def timing(label):
    start_time = time.time()
    try:
        yield
    finally:
        end_time = time.time()
        elapsed_time = end_time - start_time
        print(f"{label} Average Time: {elapsed_time:.8f} seconds")

puzzle = 66
start = 2 ** (puzzle - 1)
end = (2 ** puzzle) - 1

def generate_random():   
    return random.randint(start, end)

with timing("generate_random"):
    random_value = generate_random()
    print(random_value)

 make
mkdir -p obj
cd obj &&	mkdir -p GPU
cd obj &&	mkdir -p hash
g++ -m64 -mssse3 -Wno-write-strings -O2 -I. -I/usr/local/cuda-8.0/include -I/usr/local/include -o obj/Base58.o -c Base58.cpp
g++ -m64 -mssse3 -Wno-write-strings -O2 -I. -I/usr/local/cuda-8.0/include -I/usr/local/include -o obj/IntGroup.o -c IntGroup.cpp
g++ -m64 -mssse3 -Wno-write-strings -O2 -I. -I/usr/local/cuda-8.0/include -I/usr/local/include -o obj/main.o -c main.cpp
g++ -m64 -mssse3 -Wno-write-strings -O2 -I. -I/usr/local/cuda-8.0/include -I/usr/local/include -o obj/Random.o -c Random.cpp
Random.cpp: In function ‘void RandAddSeed()’:
Random.cpp:154:5: error: ‘memset’ was not declared in this scope
  154 |     memset(&nCounter, 0, sizeof(nCounter));
      |     ^~~~~~
Random.cpp:27:1: note: ‘memset’ is defined in header ‘’; did you forget to ‘#include ’?
   26 | #include 
  +++ |+#include 
   27 | //
make: *** [Makefile:70: obj/Random.o] Error 1

0308360beeb0177961b04eccc33decdf63e23d205abc8ef6355d659d1313459ba7

026a0747b3229f32ce2f0f7bd77a7bd306f6c95d27e7c5bee22a417938d9988605

03e067911ebf6bacf87a8088ab9344c95843aed80b070eed09f9d947c98dfc0249
00000000000000000000000000000003ffffffffffffffffffffffffffffffff

035dee726b0fe623224fa1f4d79af66a9a1829213ec675875c619266a5f184e7d1