Schema

USDC (Link to Box)

We've parsed events emitted by USDC contract using this Ethereum Log Parser and uploaded them into Box. In total, we've parsed 14 events:

1. Approval
2. AuthorizationUsed
3. Blacklisted
4. BlacklisterChanged
5. AuthorizationCanceled
6. Burn
7. MasterMinterChanged
8. Mint
9. MinterConfigured
10. MinterRemoved
11. OwnershipTransferred
12. PauserChanged
13. Transfer
14. UnBlacklisted

Here are the descriptions of schema for each event:

Approval

The file usdc_Approval.csv contains all the "Approval" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "Approval").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• owner - The address of the owner in the approval event.
• spender - The address of the spender in the approval event.
• value - The value involved in the approval event.
• block_timestamp - The timestamp of the block where this event was recorded.

AuthorizationCanceled

The file usdc_AuthorizationCanceled.csv contains all the "AuthorizationCanceled" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "AuthorizationCanceled").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• authorizer - The address of the authorizer in the event.
• nonce - The nonce associated with the canceled authorization.
• block_timestamp - The timestamp of the block where this event was recorded.

AuthorizationUsed

The file usdc_AuthorizationUsed.csv contains all the "AuthorizationUsed" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "AuthorizationUsed").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• authorizer - The address of the authorizer in the event.
• nonce - The nonce used in the authorization.
• block_timestamp - The timestamp of the block where this event was recorded.

Blacklisted

The file usdc_Blacklisted.csv contains all the "Blacklisted" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "Blacklisted").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• _account - The address of the account that was blacklisted.
• block_timestamp - The timestamp of the block where this event was recorded.

BlacklisterChanged

The file usdc_BlacklisterChanged.csv contains all the "BlacklisterChanged" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "BlacklisterChanged").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• newBlacklister - The address of the new blacklister set in the event.
• block_timestamp - The timestamp of the block where this event was recorded.

Burn

The file usdc_Burn.csv contains all the "Burn" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "Burn").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• burner - The address of the burner in the event.
• amount - The amount of USDC burned.
• block_timestamp - The timestamp of the block where this event was recorded.

MasterMinterChanged

The file usdc_MasterMinterChanged.csv contains all the "MasterMinterChanged" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "MasterMinterChanged").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• newMasterMinter - The address of the new Master Minter.
• block_timestamp - The timestamp of the block where this event was recorded.

Mint

The file usdc_Mint.csv contains all the "Mint" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "Mint").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• minter - The address of the minter.
• to - The address to which the USDC is minted.
• amount - The amount of USDC minted.
• block_timestamp - The timestamp of the block where this event was recorded.

MinterConfigured

The file usdc_MinterConfigured.csv contains all the "MinterConfigured" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "MinterConfigured").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• minter - The address of the minter being configured.
• minterAllowedAmount - The allowed amount for the minter.
• block_timestamp - The timestamp of the block where this event was recorded.

MinterRemoved

The file usdc_MinterRemoved.csv contains all the "MinterRemoved" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "MinterRemoved").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• oldMinter - The address of the minter being removed.
• block_timestamp - The timestamp of the block where this event was recorded.

OwnershipTransferred

The file usdc_OwnershipTransferred.csv contains all the "OwnershipTransferred" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "OwnershipTransferred").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• previousOwner - The address of the previous owner.
• newOwner - The address of the new owner.
• block_timestamp - The timestamp of the block where this event was recorded.

PauserChanged

The file usdc_PauserChanged.csv contains all the "PauserChanged" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "PauserChanged").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• newAddress - The address of the new pauser.
• block_timestamp - The timestamp of the block where this event was recorded.

Transfer

The file usdc_Transfer.csv contains all the "Transfer" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "Transfer").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• from - The address of the sender in the transfer event.
• to - The address of the receiver in the transfer event.
• value - The value of the transfer.
• block_timestamp - The timestamp of the block where this event was recorded.

UnBlacklisted

The file usdc_UnBlacklisted.csv contains all the "UnBlacklisted" events emitted by the relevant USDC contract. The dataset includes the following fields:

• event - The name of the event (in this case, "UnBlacklisted").
• logIndex - The index of this specific event within the transaction.
• transactionIndex - The index position of the transaction within the block.
• transactionHash - The hash of the transaction that triggered this event.
• address - The address of the contract that generated this event.
• blockHash - The hash of the block where this event was recorded.
• blockNumber - The number of the block where this event was recorded.
• _account - The address of the account that was unblacklisted.
• block_timestamp - The timestamp of the block where this event was recorded.

Circle CCTP Smart Contracts for EVM-compatible blockchains (Link to Box)

We have parsed events emitted by the following CCTP smart contracts, each with its specific responsibilities:

TokenMessenger Contract

Responsibilities:

• Entrypoint for cross-chain USDC transfer.
• Routes messages to burn USDC on a source chain, and mint USDC on a destination chain.

Events:

• DepositForBurn - Details events related to deposit for burn operations.
• LocalMinterAdded - Records the addition of local minters.
• MintAndWithdraw - Logs events of minting and withdrawal actions.
• OwnershipTransferred - Tracks ownership transfer events.
• OwnershipTransferStarted - Indicates the initiation of an ownership transfer.
• RemoteTokenMessengerAdded - Logs the addition of remote token messengers.
• RemoteTokenMessengerRemoved - Tracks the removal of remote token messengers.
• RescuerChanged - Records changes in the rescuer role.

MessageTransmitter Contract

Responsibilities:

• Generic message passing.
• Sends all messages on the source chain, and receives all messages on the destination chain.

Events:

• AttesterEnabled - Indicates enabling of an attester.
• AttesterManagerUpdated - Logs updates to the attester manager.
• MessageReceived - Tracks the reception of messages.
• MessageSent - Logs the sending of messages.
• OwnershipTransferred - Tracks ownership transfer events.
• OwnershipTransferStarted - Indicates the initiation of an ownership transfer.
• PauserChanged - Logs changes in the pauser role.
• RescuerChanged - Records changes in the rescuer role.
• SignatureThresholdUpdated - Updates the signature threshold.

TokenMinter Contract

Responsibilities:

• Responsible for minting and burning USDC.
• Contains chain-specific settings used by burners and minters.

Events:

• LocalTokenMessengerAdded - Indicates the addition of a local token messenger.
• OwnershipTransferred - Tracks ownership transfer events.
• OwnershipTransferStarted - Indicates the initiation of an ownership transfer.
• PauserChanged - Logs changes in the pauser role.
• SetBurnLimitPerMessage - Sets the burn limit per message.
• SetTokenController - Specifies the setting of a token controller.
• TokenPairLinked - Records the linking of token pairs.
• RescuerChanged - Records changes in the rescuer role.