{"schemaVersion":"zfinia-newswire-1","product":"zfinia-machine-newswire","since":"1970-01-01T00:00:00.000Z","generatedAt":"2026-09-10T12:26:10.290Z","nextCursor":"2026-09-10T12:26:10.290Z","count":6,"truncated":false,"materialOnly":false,"marketMovements":{"resourcesDelta":0,"distinctPayersDelta":0,"callsDelta":0,"newEntrants":0,"removedResources":0,"topFamilyChanged":false,"whatChanged":[]},"items":[{"eventId":"circle-arc-public-testnet-2025-10-28","eventDate":"2025-10-28","publishedAt":"2026-09-07T00:00:00.000Z","observedAt":"2026-09-10T12:26:10.290Z","lastUpdatedAt":"2026-09-10T12:26:10.290Z","headline":"Circle launches the Arc public testnet","summary":"On 28 October 2025 Circle announced the public testnet for Arc, describing participation from more than one hundred companies across finance and infrastructure. Public testnet is not mainnet settlement and is not x402 volume.","whyItMatters":"Stablecoin L1 progress is a settlement-risk input for any USDC machine rail.","entities":["circle","arc","usdc","visa"],"protocols":["usdc"],"topics":["stablecoins","settlement","infrastructure"],"sourceURLs":["https://investor.circle.com/news/news-details/2025/Circle-Launches-Arc-Public-Testnet/default.aspx"],"sourceTypes":["official_announcement"],"evidenceTier":"TIER_A","confidence":0.84,"corroborationCount":0,"marketData":null,"changeVsPrevious":{"resourcesDelta":0,"distinctPayersDelta":0,"callsDelta":0,"newEntrants":0,"removedResources":0,"topFamilyChanged":false,"whatChanged":[]},"freshness":"live","publicAnalysis":false,"usageRights":"Caller may use returned JSON for their own systems. A single call does not grant redistribution of the full zFinia corpus as a competing archive. HTML pages are not the canonical bulk database.","schemaVersion":"zfinia-newswire-1","firstPartyInterest":false,"retrospective":true,"slug":"circle-launches-arc-public-testnet","type":"official_announcement","newsroomState":"PUBLISHED","publisher":"Circle Investor Relations","correctionOf":null,"retracted":false},{"eventId":"circle-usdc-agent-settlement","eventDate":"2025-09-15","publishedAt":"2026-09-07T00:00:00.000Z","observedAt":"2026-09-10T12:26:10.290Z","lastUpdatedAt":"2026-09-10T12:26:10.290Z","headline":"USDC is the default settlement asset across x402, Base and several agent rails","summary":"Public x402, CDP and Base documentation consistently price and settle first-wave machine payments in USDC. Circle’s role is issuer infrastructure rather than a protocol competitor. zFinia treats USDC availability, chain support and attestation as market plumbing, not as a price prediction.","whyItMatters":"A machine economy still needs a unit of account. Today that unit is usually USDC, which concentrates issuer, chain and facilitator risk.","entities":["circle","usdc"],"protocols":["usdc"],"topics":["stablecoins","settlement","x402"],"sourceURLs":["https://www.circle.com/usdc"],"sourceTypes":["authoritative_documentation"],"evidenceTier":"TIER_B","confidence":0.72,"corroborationCount":0,"marketData":null,"changeVsPrevious":{"resourcesDelta":0,"distinctPayersDelta":0,"callsDelta":0,"newEntrants":0,"removedResources":0,"topFamilyChanged":false,"whatChanged":[]},"freshness":"live","publicAnalysis":false,"usageRights":"Caller may use returned JSON for their own systems. A single call does not grant redistribution of the full zFinia corpus as a competing archive. HTML pages are not the canonical bulk database.","schemaVersion":"zfinia-newswire-1","firstPartyInterest":false,"retrospective":true,"slug":"usdc-remains-the-default-stable-settlement-asset-for-agent-rails","type":"official_announcement","newsroomState":"PUBLISHED","publisher":"Circle","correctionOf":null,"retracted":false},{"eventId":"circle-arc-announced-2025-08-12","eventDate":"2025-08-12","publishedAt":"2026-09-07T00:00:00.000Z","observedAt":"2026-09-10T12:26:10.290Z","lastUpdatedAt":"2026-09-10T12:26:10.290Z","headline":"Circle introduces Arc, an L1 purpose-built for stablecoin finance","summary":"On 12 August 2025 Circle introduced Arc, an open Layer-1 designed for stablecoin-native applications, EVM-compatible, with USDC as native gas. The post scheduled private then public testnet and a later mainnet beta. Arc is settlement/infrastructure, not a 402 payload spec.","whyItMatters":"If agents settle in USDC, issuer-operated chains are part of the routing and concentration story.","entities":["circle","usdc","arc"],"protocols":["usdc"],"topics":["stablecoins","settlement","infrastructure"],"sourceURLs":["https://www.circle.com/blog/introducing-arc-an-open-layer-1-blockchain-purpose-built-for-stablecoin-finance"],"sourceTypes":["official_announcement"],"evidenceTier":"TIER_A","confidence":0.84,"corroborationCount":0,"marketData":null,"changeVsPrevious":{"resourcesDelta":0,"distinctPayersDelta":0,"callsDelta":0,"newEntrants":0,"removedResources":0,"topFamilyChanged":false,"whatChanged":[]},"freshness":"live","publicAnalysis":false,"usageRights":"Caller may use returned JSON for their own systems. A single call does not grant redistribution of the full zFinia corpus as a competing archive. HTML pages are not the canonical bulk database.","schemaVersion":"zfinia-newswire-1","firstPartyInterest":false,"retrospective":true,"slug":"circle-introduces-arc-l1-for-stablecoin-finance","type":"official_announcement","newsroomState":"PUBLISHED","publisher":"Circle","correctionOf":null,"retracted":false},{"eventId":"govinfo-genius-act-pdf","eventDate":"2025-07-18","publishedAt":"2026-09-07T00:00:00.000Z","observedAt":"2026-09-10T12:26:10.290Z","lastUpdatedAt":"2026-09-10T12:26:10.290Z","headline":"GovInfo hosts the enrolled GENIUS Act text as Public Law 119-27","summary":"The Government Publishing Office hosts Public Law 119-27, the enrolled GENIUS Act, dated 18 July 2025. zFinia treats this PDF as TIER_A statutory evidence alongside Congress.gov’s bill tracker.","whyItMatters":"Regulatory coverage should cite the statute, not only commentary about it.","entities":["circle","usdc"],"protocols":["usdc"],"topics":["stablecoins","standards","regulatory"],"sourceURLs":["https://www.govinfo.gov/content/pkg/PLAW-119publ27/pdf/PLAW-119publ27.pdf"],"sourceTypes":["standards_body"],"evidenceTier":"TIER_A","confidence":0.84,"corroborationCount":0,"marketData":null,"changeVsPrevious":{"resourcesDelta":0,"distinctPayersDelta":0,"callsDelta":0,"newEntrants":0,"removedResources":0,"topFamilyChanged":false,"whatChanged":[]},"freshness":"live","publicAnalysis":false,"usageRights":"Caller may use returned JSON for their own systems. A single call does not grant redistribution of the full zFinia corpus as a competing archive. HTML pages are not the canonical bulk database.","schemaVersion":"zfinia-newswire-1","firstPartyInterest":false,"retrospective":true,"slug":"govinfo-hosts-the-enrolled-genius-act-text","type":"standards","newsroomState":"PUBLISHED","publisher":"GovInfo","correctionOf":null,"retracted":false},{"eventId":"genius-act-2025-07-18","eventDate":"2025-07-18","publishedAt":"2026-09-07T00:00:00.000Z","observedAt":"2026-09-10T12:26:10.290Z","lastUpdatedAt":"2026-09-10T12:26:10.290Z","headline":"The US GENIUS Act becomes Public Law 119-27","summary":"On 18 July 2025 S.1582, the Guiding and Establishing National Innovation for U.S. Stablecoins Act, became Public Law 119-27. Enactment is not the same as the later effective date for issuer obligations, which the statute ties to eighteen months after enactment or 120 days after final implementing rules, whichever is earlier.","whyItMatters":"Machine-payment rails that settle in USDC inherit issuer, reserve and supervisory risk. Covering x402 without covering the stablecoin statute is incomplete.","entities":["circle","usdc"],"protocols":["usdc"],"topics":["stablecoins","standards","regulatory"],"sourceURLs":["https://www.congress.gov/bill/119th-congress/senate-bill/1582"],"sourceTypes":["standards_body"],"evidenceTier":"TIER_A","confidence":0.84,"corroborationCount":0,"marketData":null,"changeVsPrevious":{"resourcesDelta":0,"distinctPayersDelta":0,"callsDelta":0,"newEntrants":0,"removedResources":0,"topFamilyChanged":false,"whatChanged":[]},"freshness":"live","publicAnalysis":false,"usageRights":"Caller may use returned JSON for their own systems. A single call does not grant redistribution of the full zFinia corpus as a competing archive. HTML pages are not the canonical bulk database.","schemaVersion":"zfinia-newswire-1","firstPartyInterest":false,"retrospective":true,"slug":"us-genius-act-becomes-public-law-119-27","type":"standards","newsroomState":"PUBLISHED","publisher":"Congress.gov","correctionOf":null,"retracted":false},{"eventId":"circle-cctp","eventDate":"2025-06-01","publishedAt":"2026-09-07T00:00:00.000Z","observedAt":"2026-09-10T12:26:10.290Z","lastUpdatedAt":"2026-09-10T12:26:10.290Z","headline":"Circle CCTP is how USDC moves across chains without a naive hop","summary":"Circle’s Cross-Chain Transfer Protocol documentation describes burning and minting USDC across supported chains. Machine buyers that route across Base and other networks inherit this plumbing and its failure modes.","whyItMatters":"Multi-chain x402 is a routing problem. Bridged lookalikes are not native USDC.","entities":["circle","usdc"],"protocols":["usdc"],"topics":["stablecoins","routing","settlement"],"sourceURLs":["https://www.circle.com/cross-chain-transfer-protocol"],"sourceTypes":["authoritative_documentation"],"evidenceTier":"TIER_B","confidence":0.72,"corroborationCount":0,"marketData":null,"changeVsPrevious":{"resourcesDelta":0,"distinctPayersDelta":0,"callsDelta":0,"newEntrants":0,"removedResources":0,"topFamilyChanged":false,"whatChanged":[]},"freshness":"live","publicAnalysis":false,"usageRights":"Caller may use returned JSON for their own systems. A single call does not grant redistribution of the full zFinia corpus as a competing archive. HTML pages are not the canonical bulk database.","schemaVersion":"zfinia-newswire-1","firstPartyInterest":false,"retrospective":true,"slug":"circle-cctp-is-how-usdc-moves-across-chains","type":"version_update","newsroomState":"PUBLISHED","publisher":"Circle","correctionOf":null,"retracted":false}],"usageRights":"Caller may use returned JSON for their own systems. A single call does not grant redistribution of the full zFinia corpus as a competing archive. HTML pages are not the canonical bulk database.","independentRevenueUsd":0}