Are you sure? When I tested many moons ago, if I ran a higher range than 128 (b/c hash table only stores 32 hex characters for point and distance (32x4 = 128)), the distances and points were correct, but obviously the leading characters were left out/off because of the 128 bit max storage.

I may have to run again and retest, and extract the hash table....I will check it now.

Update:

It is as how I remembered it. I just ran a super quick test for the 130 bit range. As you know, the program subtracts starting range so we are working with 0 thru 1ffffff.....(129 bit range)
Here is extracted DP, DP of 20:

178559a1004e94449e90d76ca10b3600 26311140a6e43a1530526461aed458e4

On the surface, if you just plugged in 26311140a6e43a1530526461aed458e4, it seems false, but we know that the only other possible number that could be added in front is a 1, so add a 1 to 26311140a6e43a1530526461aed458e4 and you get 126311140a6e43a1530526461aed458e4, now cross reference that distance and you get this point:
0300000B71D19F5FCD4AC6184EDE7C000C178559A1004E94449E90D76CA10B3600
which matches up to:
178559a1004e94449e90d76ca10b3600
178559A1004E94449E90D76CA10B3600

So that is what I mean by doing some manual work if you use JLPs unmodded version and find a collision in the 130 bit range. But if you go up to 135, it gets a little more tricky/complicated.

But you could be correct! Maybe I didn't let the program run long enough to see how any subsequent keys would be handled.

Honestly, I wouldn't use the unmodded version, nor the 256 bit one on github (doesn't work).

To be safe, use Etayson's Kangaroo on github or mod your own version. That's the safer bet.

So I still believe it could solve 130 and then you would have to do some manual math (nothing hard) to get the actual private key. If the key starts with a 2, I think it would not require the manual math, but if it starts with a 3, then it will.

i've been reading this thread since last week till now and I don't find the answer

so if the program is limited to 125bit interval, if i want to search for puzzle 130bit key, do i break the address space to 2 parts and run twice or on 2 computers and then merge?

how is the result, is it the private key in the result.txt file or do I need to do some scalar math to get the key

please help explain, thanks

I probably miss something here, but please explain why do you guys use Kangaroo while there is another tool Keyhunt, which BSGS option is very very fast. With above average hardware, you can get around 10 exa keys per second. That is 10,000,000,000,000,000,000 keys per second.  I have never seen such numbers with Kangaroo.