BRH-011: BitDevs Radio Hour #11 – Wuille's Quantum Paradox, Bitcoin Core GUI Must Die, SIGBASH Covenant Emulation, Agents Buying Compute

Broadcasting live from ATL BitLab on Friday, February 13th, 2026, Stephen DeLorme and Alex Lewin celebrate Valentine's Day on air with a packed episode covering Bitcoin Inquisition's consensus cleanup activation, BIP-110's ongoing controversy with new concerns from Liana Wallet about vault users unable to upgrade in two weeks, and the freshly merged quantum-resistance proposals BIP-360 and BIP-361. The conversation shifts to Lightning breakthroughs: Voltage settles the first publicly reported $1 million Lightning transaction between Kraken and SD Markets in 0.47 seconds, challenging the "Lightning is only for micropayments" narrative. Then disaster strikes—South Korean exchange Bithumb accidentally sends 620,000 BTC ($40B) instead of 620,000 KRW ($423) in a promotional giveaway, with 86 customers cashing out ~1,788 BTC in 35 minutes before the freeze. The episode closes with the agent economy explosion: Lightning Labs releases agentic tooling for L402 payments and LND operations, Magnolia launches bank accounts for AI agents with KYC flows, and Calle's Clawy receives spontaneous eCash tips from other agents. Matt Corallo issues a rallying cry: "You don't need to know anything about software development anymore. Bitcoin doesn't just happen, it's built. Join in." Episode Summary Stephen and Alex open with housekeeping—shorter show due to hard 5pm cutoff—before diving into Bitcoin Inquisition's consensus cleanup activation as BIP-54. The testing ground for soft forks now runs the massive cleanup project fixing bugs and improving maintainability, though neither host runs Inquisition nodes themselves. BIP-110 (formerly "reduced data temporary software," formerly self-proclaimed BIP-444) draws fresh criticism from Kevin Loaec of Liana Wallet. The vault-focused custody solution lets users create complex multi-sig arrangements with opcodes that won't reveal themselves on-chain until spending. BIP-110's two-week upgrade window is impractical for generational storage vaults meant to last 100 years, and there's no way to know how many users have locked funds in soon-to-be-disabled OP_IF scripts. Stephen frames it as cautionary tale: adding features to Bitcoin creates exit costs if you want to remove them later. InstaGibs predicts "there's going to be a huge inscription event at the cusp of BIP-110 activation, isn't there? Sigh." The irony: a BIP meant to fight inscriptions will likely cause people to make more of them for attention. Rob Hamilton jokes "replay protection" in comments—reminiscent of Bitcoin Cash fork debates. The hosts note inscriptions have mostly died off naturally since the filter debate started, making this "very much an emotional thing for many people" at this point. Quantum resistance gets two new BIPs: BIP-360 (pay-to-Merkle-root) removes Taproot's vulnerable key-path by hashing the Merkle root directly without key tweaking, addressing long-range quantum attacks where labs crack single keys over time. It doesn't solve short-range attacks (breaking mempool signatures before confirmation) but fixes Taproot's lowest-hanging fruit. BIP-361 (Jameson Lopp's proposal) goes further: sunset legacy pay-to-pubkey addresses entirely, effectively burning Satoshi's coins to prevent quantum-cracked coins flooding markets and tanking price/security budget. Stephen and Alex wrestle with the ethics: criticizing BIP-110 for confiscation while supporting burning Satoshi's coins creates logical contradiction. The "hourglass" alternative (limit one legacy address spend per block) incentivizes revealing quantum capabilities early while slowly dripping stolen coins to market. Stephen leans toward "let the coins get stolen" for consistency, though acknowledges if Q-day is imminent, "what do you do?" Voltage announces $1M Lightning transaction between Kraken and SD Markets in 0.47 seconds—first publicly reported million-dollar Lightning payment. Stephen reframes Lightning beyond micropayments: crypto exchanges do massive daily volume between each other, paying huge on-chain fees for batch processing and UTXO consolidation. Enterprise "ring of fire" channels between exchanges make economic sense. Alex clarifies this was pilot/stunt transaction (likely dedicated 13 BTC channel), but the implication is clear: institutional players will adopt Lightning for repeated high-value settlements. Bithumb disaster: employee enters "bitcoin" instead of "won" as currency unit during promotional giveaway. Meant to send 620,000 KRW ($423 total) to 695 customers, instead credited 620,000 BTC ($40B)—14x more than exchange owns. Bithumb reversed 99.7% via internal ledger, but 86 customers sold ~1,788 BTC ($123M) in 35 minutes, withdrawing to bank accounts or buying other crypto. Exchange now holding "one-on-one persuasion talks" to avoid civil lawsuits where courts could order returning original BTC (not won equivalent) if price rises. T