Official links
Relationships
| From | Type | To | Evidence |
|---|---|---|---|
| circle | ISSUES | usdc | Verified |
| evt-circle-arc-announced-2025-08-12 | DISCUSSES | usdc | Verified |
| evt-circle-arc-public-testnet-2025-10-28 | DISCUSSES | usdc | Verified |
| evt-circle-cctp | DISCUSSES | usdc | Observed |
| evt-circle-usdc-agent-settlement | DISCUSSES | usdc | Observed |
| evt-genius-act-2025-07-18 | DISCUSSES | usdc | Verified |
| evt-govinfo-genius-act-pdf | DISCUSSES | usdc | Verified |
| svc-accessibility_contrast_calculator | PRICED IN | usdc | Verified |
| svc-data_compatibility_checker | PRICED IN | usdc | Verified |
| svc-machine_economy_changes_since | PRICED IN | usdc | Verified |
| zfinia | PRICED IN | usdc | Verified |
Recent events
Circle launches the Arc public testnet
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.
VerifiedSourceUSDC is the default settlement asset across x402, Base and several agent rails
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.
ObservedSourceCircle introduces Arc, an L1 purpose-built for stablecoin finance
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.
VerifiedSourceThe US GENIUS Act becomes Public Law 119-27
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.
VerifiedSourceGovInfo hosts the enrolled GENIUS Act text as Public Law 119-27
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.
VerifiedSourceCircle CCTP is how USDC moves across chains without a naive hop
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.
ObservedSource
Source
verified · https://zfinia.com/methodology