Bitcoin Optech: Newsletter #403 Recap

Gustavo Flores Echaiz and Brandon Black are joined by Olaoluwa Osuntokun to discuss Newsletter #403.

News

● Binary fuse filters as an alternative to BIP158's GCS (19:05)

Changing consensus

● Post-quantum HD wallets with fallback SPHINCS keys (31:07)

● Discussion of a post-quantum output type (34:42)

● Proposal to embed post-quantum keys in tapscript without consensus changes (38:03)

● BIP54 demonstration of slow blocks on signet (43:28)

● Post-quantum BIP86 recovery using zk-STARK proofs of BIP32 seeds (1:05)

Releases and release candidates

● Core Lightning 26.04.1 (48:16)

● BTCPay Server 2.3.8 (50:15)

● BTCPay Server 2.3.9 (51:52)

Notable code and documentation changes

● Bitcoin Core #33671 (52:39)

● Bitcoin Core #34885 (58:01)

● Bitcoin Core #33920 (59:57)

● Bitcoin Core #34911 (1:02:00)

● BIPs #1548 (1:04:47)

● HWI #831 (1:08:17)

● BDK #2188 (1:09:11)

● BDK #2115 (1:10:14)