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    "title": {
        "rendered": "Circle\u2019s Arc Network Reveals Quantum Resistance Plans as Bitcoin, Ethereum Face Threat"
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        "rendered": "<div>\n<div>\n<h4 color=\"#333\">In brief<\/h4>\n<ul>\n<li>Arc Network will launch its mainnet with built-in post-quantum signature support.<\/li>\n<li>The phased roadmap targets full quantum resistance across wallets, validators, and infrastructure.<\/li>\n<li>Experts predict quantum computers could break current cryptography within a few years, with Google seeing a real threat to Bitcoin by 2032.<\/li>\n<\/ul>\n<\/div>\n<p><span><a href=\"https:\/\/decrypt.co\/resources\/what-is-arc-the-stablecoin-blockchain-from-usdc-issuer-circle\" target=\"_blank\">Arc<\/a>, an upcoming layer-1 blockchain backed by <a href=\"https:\/\/decrypt.co\/resources\/what-is-us-dollar-coin-usdc\" target=\"_blank\">USDC<\/a> stablecoin issuer Circle, announced that its impending mainnet launch will come with post-quantum signature support\u2014part of a <\/span><a href=\"https:\/\/www.arc.network\/blog\/arcs-quantum-resistant-design-and-roadmap-why-it-matters\" target=\"_blank\" rel=\"nofollow external noopener\"><span>broader roadmap<\/span><\/a><span> to address growing concerns about quantum computing threats to cryptocurrency.<\/span><\/p>\n<p><span>The <a href=\"https:\/\/decrypt.co\/resources\/ethereum-virtual-machine\" target=\"_blank\">Ethereum Virtual Machine<\/a>-compatible blockchain aims to protect institutional digital assets from future quantum attacks that could break current cryptographic systems.<\/span><\/p>\n<p><span>The network&#8217;s roadmap spans wallets, private smart contract state, validator authentication, and supporting infrastructure. Unlike approaches that would force disruptive network-wide resets, Arc&#8217;s design is opt-in with no mandatory migration required, according to the company.<\/span><\/p>\n<p><span>Post-quantum signature support will arrive alongside the forthcoming mainnet launch, while quantum-resistance private state protection is noted as a \u201cnear-term\u201d enhancement. Post-quantum-designed infrastructure will come later, followed by the \u201clong-term\u201d improvement of validator signature hardening.<\/span><\/p>\n<p><span>The technical challenges are significant. While classical signatures measure 64-65 bytes, post-quantum signatures can be an order of magnitude larger. Arc&#8217;s sub-second block finalization leaves attackers only a 500 millisecond window to forge validator signatures. The roadmap document emphasizes that blockchains need quantum-resistant protections across every layer of the stack, not just at the wallet level.<\/span><\/p>\n<p><span>The move highlights challenges facing established networks\u2014Bitcoin&#8217;s migration to post-quantum wallets alone could take months of continuous processing in a best-case scenario, Arc&#8217;s documentation states.<\/span><\/p>\n<p><span>&#8220;The organizations that lead this transition will be the ones that started building before the urgency became undeniable,\u201d Arc\u2019s post reads. The technical complexity of quantum-resistant migrations poses significant hurdles for networks with large user bases and extensive infrastructure.<\/span><\/p>\n<p><span>The quantum threat has gained urgency as <\/span><a href=\"https:\/\/decrypt.co\/resources\/what-q-day-quantum-threat-bitcoin-explained\" target=\"_blank\"><span>&#8220;Q-Day&#8221;<\/span><\/a><span>\u2014when quantum computers could break public-key cryptography\u2014approaches. The National Institute of Standards and Technology has warned about &#8220;harvest now, decrypt later&#8221; attacks, where adversaries collect encrypted data today to decrypt once quantum computers become powerful enough.<\/span><\/p>\n<p><span>Most major blockchain networks lack adequate preparation for quantum threats that could render current security obsolete, making proactive approaches increasingly critical for protecting long-lived digital assets.<\/span><\/p>\n<p><a href=\"https:\/\/decrypt.co\/resources\/what-is-bitcoin-four-minute-instant-guide-explainer\" target=\"_blank\"><span>Bitcoin<\/span><\/a><span> developers have <\/span><a href=\"https:\/\/decrypt.co\/323512\/existential-crisis-bitcoin-quantum-computing-threat-fast-approaching\" target=\"_blank\"><span>discussed potential mitigation solutions<\/span><\/a><span> for years, with a Bitcoin Improvement Proposal (BIP 360) <\/span><a href=\"https:\/\/decrypt.co\/358068\/bitcoin-quantum-fix-experts-diverge-urgency-threat\" target=\"_blank\"><span>recently gaining traction<\/span><\/a><span>. Meanwhile, <\/span><a href=\"https:\/\/decrypt.co\/resources\/what-is-ethereum-quickly-explained-four-minute-guide\" target=\"_blank\"><span>Ethereum<\/span><\/a><span> developers have <\/span><a href=\"https:\/\/decrypt.co\/355798\/ethereum-foundation-forms-post-quantum-team-security-concerns-mount\" target=\"_blank\"><span>coalesced around a roadmap<\/span><\/a><span> championed by co-founder Vitalik Buterin and the Ethereum Foundation, with plans to implement quantum resistance before it\u2019s a problem.<\/span><\/p>\n<p><span>The price of ALGO has <\/span><a href=\"https:\/\/decrypt.co\/363236\/algorand-soars-double-digits-on-google-post-quantum-protocols-citation\" target=\"_blank\"><span>surged over the last week<\/span><\/a><span> after the Algorand blockchain was cited in a Google research paper about post-quantum cryptography. Google recently said that the quantum threat to Bitcoin could <\/span><a href=\"https:\/\/decrypt.co\/362856\/google-quantum-paper-boosts-odds-of-bitcoin-q-day-by-2032-researchers-warn\" target=\"_blank\"><span>take root by 2032<\/span><\/a><span>, even sooner than previously projected.<\/span><\/p>\n<div>\n<h3>Daily Debrief Newsletter<\/h3>\n<p>Start every day with the top news stories right now, plus original features, a podcast, videos and more.<\/p>\n<\/div>\n<\/div>",
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        "rendered": "<p>In brief Arc Network will launch its mainnet with built-in post-quantum signature support. The phased roadmap targets full quantum resistance [&hellip;]<\/p>",
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