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The post scheduled private then public testnet and a later mainnet beta. Arc is settlement/infrastructure, not a 402 payload spec.","entityIds":["circle","usdc","arc"],"sourceUrl":"https://www.circle.com/blog/introducing-arc-an-open-layer-1-blockchain-purpose-built-for-stablecoin-finance","evidence":{"sourceUrl":"https://www.circle.com/blog/introducing-arc-an-open-layer-1-blockchain-purpose-built-for-stablecoin-finance","sourceType":"official_announcement","observedAt":null,"sourcePublishedAt":"2025-08-12","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"VERIFIED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false},"firstParty":false},{"id":"genius-act-2025-07-18","type":"standards","at":"2025-07-18T00:00:00.000Z","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.","entityIds":["circle","usdc"],"sourceUrl":"https://www.congress.gov/bill/119th-congress/senate-bill/1582","evidence":{"sourceUrl":"https://www.congress.gov/bill/119th-congress/senate-bill/1582","sourceType":"standards_body","observedAt":null,"sourcePublishedAt":"2025-07-18","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"VERIFIED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false},"firstParty":false},{"id":"govinfo-genius-act-pdf","type":"standards","at":"2025-07-18T00:00:00.000Z","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.","entityIds":["circle","usdc"],"sourceUrl":"https://www.govinfo.gov/content/pkg/PLAW-119publ27/pdf/PLAW-119publ27.pdf","evidence":{"sourceUrl":"https://www.govinfo.gov/content/pkg/PLAW-119publ27/pdf/PLAW-119publ27.pdf","sourceType":"standards_body","observedAt":null,"sourcePublishedAt":"2025-07-18","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"VERIFIED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false},"firstParty":false},{"id":"circle-cctp","type":"version_update","at":"2025-06-01T00:00:00.000Z","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.","entityIds":["circle","usdc"],"sourceUrl":"https://www.circle.com/cross-chain-transfer-protocol","evidence":{"sourceUrl":"https://www.circle.com/cross-chain-transfer-protocol","sourceType":"authoritative_documentation","observedAt":null,"sourcePublishedAt":"2025-06-01","retrievedAt":null,"excerptHash":null,"confidence":null,"classification":"OBSERVED","provenance":null,"method":"sourced_archive_event","independentlyCorroborated":false},"firstParty":false}],"observations":[],"machineUrl":"/v1/graph/entities/usdc","humanUrl":"/entities/usdc"}