Why does everything in bitcoin use double hash (HASH256) except BIP141?

UPDATE: Answered on twitter

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Going through the protocol, it seems like everything uses a double hash (OP_HASH256, OP_HASH160), except BIP-141 which uses the single hash (OP_SHA256) function.

Any reason why double-hash seemed to be agreed upon everywhere in the protocol, but was not deemed necessary for P2WSH or BIP16-P2WSH?

submitted by /u/brianddk
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MMT Titanic

submitted by /u/rnvk [link] [comments]

Tipvote.com is a bitcoin version of reddit. Get Bitcoin for posting

We have thousands of tips last month alone and its pretty much like reddit.

submitted by /u/tipvotebtc
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BBC Scotland lists crypto in "5 alternatives to keeping your savings in the bank"

submitted by /u/CryptoThrowaway80085 [link] [comments]

Is the Internet Archive about to destroy itself? We need a decentralized solution asap - before they start the modern form of book burning.

submitted by /u/gr8ful4 [link] [comments]

source https://www.reddit.com/r/btc/comments/jm03gb/is_the_internet_archive_about_to_destroy_itself/

Warning: Ledger Scam Text

I just got this text message.

“Ledger

{my name here} Ledger firmware has a critical vulnerability. Visit ledger.deals and update it immediately. Do not risk losing assets.”

So while I doubt there’s a critical vulnerability, Legder definitely got their contact list stolen. They should probably address this...

Be safe and question everything.

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Don't buy Bitcoin on Bitcoin.com, bait and switch tactics.

submitted by /u/mishax1
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source https://www.reddit.com/r/btc/comments/jlz7mf/dont_buy_bitcoin_on_bitcoincom_bait_and_switch/