TLDR
Right now, USDC settlement for U.S. banks is live on Solana (SOL), per a rollout confirmed by Visa for Cross River and Lead Bank USDC settlement on Solana.
- Solana is the active chain for bank-grade USDC settlement today Visa U.S. rollout.
- Arc (Circles upcoming L1) is planned next for Visas USDC settlement Arc support plan.
- USDC exists on many chains, but this programs launch rail is Solana program detail.
Deep Dive
1. Solana Live
Visas U.S. settlement service uses USDC on Solana for issuer/acquirer banks. Cross River and Lead Bank have already started settling obligations in USDC on Solana confirmed rollout.
- The program enables seven?day settlement and faster treasury flows while keeping the consumer card experience unchanged service overview.
- Visa cites programmable settlement and better liquidity management as key benefits for banks program detail.
If you are asking about now, Solana is the live chain powering USDC settlement for participating U.S. banks.
2. Arc Planned
Visa plans to expand USDC settlement to Arc, Circles high?throughput Layer 1, and to operate a validator node once Arc goes live Arc support plan.
- Arc is in public testnet and designed for large?scale commercial activity with partners like Visa rollout context.
- The intent is to widen capacity and resilience for on?chain settlement as adoption grows program detail.
Expect Arc to become an additional settlement rail, increasing redundancy and scalability beyond Solana.
3. Broader USDC Footprint
USDC is issued across multiple chains, but Visas U.S. bank settlement launch is specifically on Solana, with more networks to follow through pilots and future phases program history.
- Visa previously expanded pilots to more blockchains and stablecoins, indicating multi?chain flexibility in its approach program history.
- For bank?grade settlement today, the active rail is Solana, with Arc next per the notices above.
USDCs multi?chain presence does not equal settlement support everywhere. For the bank program, Solana is the current chain, with Arc planned.
Conclusion
If your question is about the current bank?grade rollout, Solana powers USDC settlement now, and Arc is the next slated network. The broader USDC ecosystem spans many chains, but the settlement programs live rail is Solana, with multi?chain expansion indicated by Visas roadmap.
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