A new Bitcoin Improvement Proposal (BIP) currently titled Chain Code Delegation, authored by Jonathan Pollock and Jurvis Tan, introduces a breakthrough in multisig wallet privacy. Published on Delving Bitcoin, the paper describes a protocol that lets multiple parties collaborate on custody or recovery without revealing a wallet’s balance or transaction history. “Users should be able to benefit from collaborative multisig without revealing their wallet balance or transaction history,” the authors write. Traditionally, custodians holding a multisig key gain full blockchain visibility via shared BIP-32 chain codes. Chain Code Delegation removes this by withholding the chain code and sharing only scalar tweaks during signing. The design allows corporate treasuries, family vaults, or custody providers to enforce security policies while remaining blind to unrelated transactions. Bitkey, Block’s self-custody division, plans to be the first to implement the protocol in production.
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Internal Amazon documents obtained by The New York Times show that the company plans to automate up to 75 percent of its operations, potentially replacing more than 600,000 future warehouse and delivery jobs. Reporter Karen Weise writes that Amazon expects automation to save roughly 30 cents per item processed while doubling product throughput by 2033. Executives, led by Udit Madan, argue that robotics will “flatten Amazon’s hiring curve” and create new technician roles in facilities modeled after its highly automated Shreveport, Louisiana, warehouse. CEO Andy Jassy has emphasized efficiency over expansion, aiming to save $12.6 billion through automation by 2027. While Amazon insists it will continue hiring for seasonal work, the shift could make the U.S.’s second-largest private employer a “net job destroyer,” as MIT economist Daron Acemoglu warned, signaling a broader transformation in the nature of industrial labor.
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Bitcoiner and educator Shinobi writes that Ark, a new Bitcoin Layer 2 protocol designed by Turkish developer Burak and now being implemented by Ark Labs and Second, offers a novel approach to off-chain scalability. Ark uses “Virtual UTXOs” (vUTXOs) organized in a tree of pre-signed transactions coordinated by an Ark Service Provider (ASP). This design enables users to receive funds instantly, without pre-allocated liquidity, while retaining unilateral on-chain control of their bitcoin. “An Ark user can simply onboard to a wallet and receive funds immediately,” Shinobi notes. The protocol improves blockspace efficiency by batching many transactions together but ties throughput more closely to Bitcoin’s base layer. With its complementary trade-offs to the Lightning Network, Ark could become a key component in the evolving Bitcoin payments stack, balancing privacy, liquidity efficiency, and trust-minimized custody.
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In Reason, author and historian Johan Norberg warns that civilizations lose their vitality not through invasion or decay alone, but through fear and intellectual rigidity. Reflecting on the ruins of Athens, he argues that societies thrive in “golden ages” when optimism, openness, and curiosity outweigh tribalism and fear. Drawing from his book Peak Human, Norberg identifies seven such eras, from Athens and Song China to the Dutch Republic, each flourishing through trade, migration, and cultural exchange. Yet, he notes, elites often “reimpose orthodoxies and stamp out the potential for unpredictability,” leading progress to stall. Echoing Kenneth Clark, Norberg cautions that “civilization’s worst enemy” is fear itself: of change, of outsiders, of new ideas. He concludes that sustaining our current effervescence requires defending open institutions and rediscovering the courage to experiment, adapt, and trust in reasoned progress.
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