Universal Smart Contracts are live on Creditcoin mainnet

USC readability is now live on Creditcoin mainnet.

Starting today, Universal Smart Contracts (USC) deployed on Creditcoin can read and cryptographically verify transaction data from Ethereum mainnet. No contracts need to be deployed on Ethereum, and nothing depends on a trusted intermediary. The verification is mathematical.

In practice, this means something that happens on Ethereum can now trigger logic on Creditcoin. A user repays a loan on Ethereum, and a contract on Creditcoin verifies that repayment and updates their on-chain credit record. The Ethereum side doesn't need to know Creditcoin exists.

This launch also marks the first time USC Attestors are running on mainnet. Attestors continuously build consensus on Ethereum's transaction history, creating the cryptographic reference that every USC proof is verified against. They've been operating across testnets for months. As of today, they're attesting to Ethereum mainnet in production.

For developers, the flow is the same one you know from testnet. Run a lightweight off-chain worker to watch for the Ethereum transactions you care about, generate a proof with the proof builder, verify it on Creditcoin, and use the verified values directly in your contract logic. All of it in standard Solidity.

That makes Creditcoin's infrastructure reachable from activity on Ethereum: the credit history primitive, real-world lending rails, and on-chain financial identity, now able to respond to what users actually do on other chains.

Readability is the first USC capability to reach mainnet.

Builders can start today with the dev docs: https://docs.creditcoin.org/creditcoin-usc

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And if you're building something serious, CEIP is open.