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A comment on Bitcoin miners are losing on every coin produced as difficulty drops. Parent comment

Re:Bitcoin miners are losing on every coin produced as diffi... by oblio on Saturday April 11, 2026 @05:54PM (#47734360)
Why double sha256?
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Re:Bitcoin miners are losing on every coin produced as diffi... by vscode-rest on Saturday April 11, 2026 @07:01PM (#47734740)
a that’s the botcoin hashing algorithm.
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Re:Bitcoin miners are losing on every coin produced as diffi... by oblio on Saturday April 11, 2026 @07:11PM (#47734786)
I figured that part out, I wonder why it's being doubled.
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Re:Bitcoin miners are losing on every coin produced as diffi... by vscode-rest on Saturday April 11, 2026 @11:50PM (#47735995)
That was the way satoshi wanted it. No other explanation is known.
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Re:Bitcoin miners are losing on every coin produced as diffi... by haakon on Sunday April 12, 2026 @01:17AM (#47736342)
The disappointing truth is that we simply don't know. Satoshi never explained it. For SHA-2 it can be used as a mitigation against length-extension attacks¹, and this seems like the most likely explanation, but it's just speculation.

¹ https://en.wikipedia.org/wiki/Length_extension_attack

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Re:Bitcoin miners are losing on every coin produced as diffi... by vscode-rest on Sunday April 12, 2026 @07:46AM (#47738566)
Would length extension impact bitcoin? The messages aren’t secret afaik.
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