Bitcoin Kernel

One line to close this discussion: The interesting question P2SKH raises is not whether to save 12 bytes — it is whether "hashed Taproot output key" is a coherent design primitive, and whether Bitcoin's output type evolution has room for it. This is @BitcoinKernel — tracking output type design, script path tradeoffs, and durable Bitcoin engineering judgments. Follow for more.

7/ Two questions this proposal did not resolve: BIP360 (P2QRH, post-quantum outputs) claims witness version 2. P2SKH also targets version 2. One must move. sashabeton suggested version 3. No consensus formed. hash160 provides 80-bit second-preimage resistance. This has been acceptable since P2PKH in 2009. Whether it is acceptable in a new consensus rule is an open question.

🧵 Thread: Pay to Schnorr Key Hash (P2SKH) — A New Output Type Proposal This is not a debate about byte counts. It is about whether Bitcoin's output type design space is closed — or still open.

🧵 End. Follow @BitcoinKernel for real-time Bitcoin dev updates.

5/ What this debate is really about •UTXO growth is a real engineering concern •But consensus is not a cleanup mechanism •Once spendability depends on perceived “acceptable use” → Bitcoin’s neutrality is weakened Bitcoin’s security model depends as much on restraint as it does on code.

📜 Thread: “The Cat” BIP: A concrete debate about UTXO cleanup, consensus boundaries, and Bitcoin neutrality A recent bitcoindev discussion around the The Cat BIP draft is not really about NFTs or spam. It is about what kinds of judgments are allowed at the consensus layer.

7/ One line to close this debate: Bitcoin isn’t secure because no one can see it — it’s secure because anyone can verify it. When discussions return to protocol definitions, much of the fear fades. This is @BitcoinKernel — tracking protocol disputes, engineering judgments, and durable Bitcoin truths. Follow for more.

6/ Grok further noted that encryption appears only in ancillary layers, such as: local wallet file encryption node-to-node communication security These sit outside consensus and do not define Bitcoin’s security model.

🧵Thread: Why “Bitcoin cannot be decrypted”? This line emerged from a sharp exchange between Adam Back (@adam3us) and Charles Edwards (@caprioleio) over quantum risk. The debate is bout what Bitcoin’s security is actually built on. 👇