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Greetings Bitcoiner,
Welcome to Issue #681 of Bitcoin Breakdown, where every Tuesday and Thursday, we bring you the latest must-read Bitcoin thought leadership articles and the newest tools and projects you should know about. But first, today’s Top Stories:
AnchorWatch opened a Nevada trust company that splits bitcoin keys across three institutions and caps custody fees at $10,000 a month. Revolut won a Gibraltar license to take its Bitcoin and crypto services into new markets, and BlackRock filed for PBIT, an options-cushioned fund on IBIT. Convenience keeps growing, but sovereignty still means your own keys.
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🔑 AnchorWatch Opens Bitcoin Trust With Split Keys
AnchorWatch opened AnchorWatch Trust Company (ATC), a Nevada-chartered qualified bitcoin custodian whose multi-institution model distributes keys across ATC, BitGo and CoinCorner. Custody fees are capped at $10,000 per month, and AnchorWatch can write up to $370M of insurance per client, backed by A+ rated Lloyd's of London syndicates.
Why it matters: Institutions forced to use a qualified custodian no longer hand every key to one gatekeeper, because ATC splits keys across three firms. A flat $10,000 fee kills the incentive to skim growing bitcoin treasuries, though self-custody still beats any custodian. Read more→
From split custody keys to a fintech's new license...
🇬🇮 Revolut Wins Gibraltar License for Global Expansion
Gibraltar's financial regulator granted a Distributed Ledger Technology (DLT) Provider license to Revolut Global Digital Assets Limited, a new Revolut entity meant to take its Bitcoin and crypto services into additional international markets. Revolut, which cites more than 80M retail customers, has not yet named the target markets or launch timelines.
Why it matters: Revolut now holds a regulator's permission slip to offer Bitcoin in new markets, which means more on-ramps for 16M crypto users. Coins left inside a licensed app sit behind a gatekeeper because permission can be revoked, so withdraw to self-custody. Read more→
From licensed apps to BlackRock's cushioned paper bitcoin...
🛡️ BlackRock Files PBIT to Cushion Bitcoin ETF Losses
BlackRock filed with the SEC for the iShares Bitcoin Managed Protection ETF (PBIT), which would use options linked to IBIT to soften losses up to an approximate limit. Each options tranche would initially target a maximum loss of about 10% before fees, while BlackRock's filing warns investors may lose some or all of their money.
Why it matters: PBIT is paper bitcoin stacked on paper bitcoin, because it holds options on IBIT instead of coins. BlackRock earns fees for taming volatility, while savers surrender the upside that rewards holding scarce sats in self-custody. Read more→
Poll #681: AnchorWatch will insure bitcoin against kidnapping and violent coercion, up to $370M per client through Lloyd's of London. You say:
Saša Čoh, CEO of hashrate marketplace NiceHash, writes that Bitcoin's wealth is concentrating at the top while mining security is squeezed by halvings, urging large holders to fund the mining ecosystem (Oct 20 | 5 min read).
Molnard, a privacy software developer, in a post on Stacker News, explains how payment batching in wallets like Ginger, Wasabi and Sparrow cuts fees and effort, but warns that every recipient can see all outputs and amounts, so users should weigh privacy before combining payments (Oct 19 | 4 min read).
Christina Comben of Cointelegraph reports that Section 502 of the US Digital Asset Tax Certainty Act would create a voluntary disclosure program letting Bitcoin and crypto investors in the country fix past non-willful tax reporting mistakes with reduced, predictable penalties (Oct 19 | 3 min read).
Bull Bitcoin, a Bitcoin exchange and financial services company, presents a list of French public sector breaches exposing tens of millions of citizens' records to argue that lawmakers should not centralize users' personal data in vulnerable databases (Oct 17 | 4 min read).
Alex Bragin, CTO of JAN3, recounts discovering Bitcoin through an IRC chat, receiving 1 BTC to test, and an offline-wallet experiment that convinced him the technology will transform finance (Oct 16 | 3 min read).
Joshua Mawhorter, assistant editor of Mises(dot)org, highlights 19th-century journalist William Leggett's anticipation of Austrian monetary insights by championing the separation of bank and state, free banking, and by blaming political credit expansion for the Panic of 1837 (Oct 16 | 7 min read).
Edil Medeiros & Leonardo Lima of Bitcoin research and development nonprofit Vinteum explain how standards like BIP 32, output descriptors, Miniscript, PSBTs, and HWI form the shared foundation that makes modern Bitcoin wallets interoperable, secure, and analyzable (Oct 16 | 15 min read).
Che Kohler of The Bitcoin Manual examines LayerTree by Lightning Labs, a covenant-based Bitcoin scaling design letting up to 1M users share one UTXO with single-transaction exits, and highlights that it is a serious proposal that cannot run on mainnet until Bitcoin adds new opcodes (Oct 16 | 11 min read).
Yuriy Brisov, a lawyer at D&A Partners, in an interview with Cointelegraph, discusses whether pro-Bitcoin and crypto rules from US government's SEC and CFTC can survive court challenges and future reversals, citing agencies' rulemaking powers, weaker judicial deference since 2024, and the limited authority of staff FAQs (Oct 15 | 6 min read).
Pizza Bitcoiner, a Bitcoin researcher, builds on Jameson Lopp's physical bitcoin attack list to document 669 verified cases across 72 countries since 2020, warning that France's tax data leaks make bitcoiners prime targets for wrench attacks (Oct 12 | 3 min read).
Bitcoin++, a series of technical Bitcoin developer conferences, hosts its first Korean edition in Seoul on Nov 5-6, 2026, focusing on privacy.
Plan ₿ Week hosts ten days of Bitcoin events from October 19 to 28, 2026, including the flagship Plan ₿ Forum, startup showcases and workshops.
El Salvador's National Bitcoin Office, led by Stacy Herbert and Max Keiser, hosts five November events: the Bitcoin Capital Summit, Bitcoin Histórico, Renaissance Rodeo, EmTech AI LATAM and the Global Bitcoin Circular Economies Summit.
Mark Karpelès, former Mt. Gox bitcoin exchange CEO, develops a low-cost radio-wave device to detect hidden LTE (Long-Term Evolution) cellular spy implants in sealed hardware wallets, with public designs planned and a prototype expected soon.
Lightning in a Jar, an open source browser-based Lightning and on-chain bitcoin wallet built on LDK, now supports mainnet 12-word recovery, silent payments, and coinjoin pools, while seeking Lightning Network Daemon (LND) operators and patch reviewers.
Silent Pool, a mining project by developer avg_gary, uses Silent Payments (BIP 352) to derive private miner payout addresses, supporting on-chain coinbase payments and off-chain Ark payments without address reuse.
Corisco, an open-source self-custodial Lightning wallet built on Spark, keeps private keys on a dedicated ESP32-S3 hardware signer and requires on-device confirmation for every payment, though it remains unaudited and early-stage.
Satslist, a Bitcoin-focused online directory and marketplace, invites meetups, organizations, and conferences to join its new community partner listing, helping local Bitcoiners get discovered and connect.
NDS-Signer, a SeedSigner port that turns a Nintendo DSi console into an offline bitcoin signing device, publishes a threat model flagging unfuzzed QR decoding, unmeasured microphone entropy, and unverified boot firmware as top audit risks.
