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Following
ETH zkAPI main online launch: Does the custody contract hold USDC or native ETH?
Both BlockchainReporter and CryptoSlate confirmed that zkAPI will be launched on the main network on October 1, but there are differences on the types of assets actually held by the main network custody contract.
Consensus
The Ethereum Foundation and the Open Anonymity Project officially launched the zkAPI on the Ethereum main website on October 1, 2026. The design was jointly released by Davide Crapis and Vitalik Buterin.
zkAPI is a charging system for metered APIs that separates payment behavior from user identity through notes, nullifiers and zero-knowledge proof technologies. Even without the cooperation of the zkAPI server, users can still withdraw or withdraw through on-chain operations.
Report divergence points
Asset types currently held by main-network custody contracts
BlockchainReporter's opinion: Currently, main-network custody contracts hold USDC credit lines.
CryptoSlate's point of view: The current mainnet list identifies the escrow contract as native ETH, the balance is calculated in units of complete gwei, and the blockchain browser data shows that deposits and payments are denominated in ETH.
How to verify the truth
You can verify the truth by viewing the on-chain token balance record of the escrow contract and its source code/list through a blockchain browser (such as Etherscan).
Analysis recommendations
The October 1 main online line and the design signature of Crapis/Buterin should be regarded as a fait accompli; however, it should not be determined whether the underlying asset of the escrow contract is USDC or native ETH until the contract's on-chain token positions are independently verified through a blockchain browser.
