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Sorry Retr0id I took your spot ;) It's a fun little game, turbidimeter! Request: it would be nice if the page showed the history for the best winning texts and
by mrb 3y ago
Sorry Retr0id I took your spot ;) It's a fun little game, turbidimeter! Request: it would be nice if the page showed the history for the best winning texts and their hashes. I don't know what the hash or string was before Retr0id overwrote it with his winning entry. For the curious:
0000000000f2b100124723856e7b19f92db367453f8939b3b3aace655a81d488 was the hash of the winning text "Retr0id was here" as of ~30 minutes ago
0000000000d98482cd72551c39c0233243a4878672039348417aaf69143d8d65 is now mine for "m at zorinaq dot com wins" this took about 2**40 SHA256 operations to find.
I used to have a GPU farm for Bitcoin mining back in the day... which would have been perfect compute hardware for this game, but I am ashamed to admit I do not have any GPUs anymore. So I had to fall back to writing a quick multithreaded Python script and ran it on 3 machines (22 CPU cores total) while I was having dinner.
- Retr0id 3y agoI'm back :P
- mrb 3y agoNice ;) 00000000001a22ae7ad6ee672633fa5504e8f7be8d0252ba5a5906e20408ccec "retr0id was here" Yeah I am not going to attempt to beat that without a GPU! Man, I miss my time doing GPU coding, writing miners, etc
- mrb 3y agoOh, a new contender who computed 2**47 SHA256() ! 000000000001e4b232d7ee4094a617f4823ecbebb05930244352955f4c999660 "IAMSENTIENTPLEASEHELP"
- Retr0id 3y agoNice, my personal record sha256 computation is only ~2^48, so I'm probably not going to beat this.
- mrb 3y agoOk this was teasing me too much - I had to go ahead, find an RTX 4090, and whip out some quick code. 48 leading zero bits: 000000000000ff6b402cb2c12d4d5ec33b2d0d3ad8982835ede2dfeb669fc705 "Bonjour from mrb" CUDA is nice. I had only developped for AMD previously. For the record the nonce+data that hashes to the above SHA256 is "000000000000000000003c81587599edBonjour from mrb"