Token

USD Coin (USDC)

Overview

Max Total Supply

196,254,294.561926 USDC

Holders

612,914 (0.00%)

Market

Price

$0.9997 @ 0.000476 ETH (-0.01%)

Onchain Market Cap

$196,200,128.38

Circulating Supply Market Cap

$76,897,915,439.00

Other Info

Token Contract (WITH 6 Decimals)

0x0b2c639c533813f4aa9d7837caf62653d097ff85

Filtered by Token Holder

0x4fa6c3d970F4AB1Fc34AE2EC12EC0B673Bcc2480

Balance

0.049571 USDC

Value

$0.05 ( ~2.38203621817412E-05 ETH) [0.0000%]

Transfers
Info
Contract
Cards New

0x4fa6c3d970f4ab1fc34ae2ec12ec0b673bcc2480

Market

Volume (24H)	:	$15,086,806,324.00
Market Capitalization	:	$76,897,915,439.00
Circulating Supply	:	76,921,805,533.00 USDC
Market Data Source: Coinmarketcap

Contract
Read as Proxy
Write as Proxy
Past Implementations

Source Code Verified Exact Match

Proxy

Implementation:

0xdEd3b9a8...81E6d06dC

API

Contract Name

FiatTokenProxy

Compiler Version

v0.6.12+commit.27d51765

Optimization Enabled

Yes with 10000000 runs

Other Settings

default evmVersion

License

-NA-

Sol2Uml
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Contract Source Code (Solidity Standard Json-Input format)

Contract Security Audit

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Contract ABI

API

[{"inputs":[{"internalType":"address","name":"implementationContract","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"previousAdmin","type":"address"},{"indexed":false,"internalType":"address","name":"newAdmin","type":"address"}],"name":"AdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newAdmin","type":"address"}],"name":"changeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"implementation","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"}],"name":"upgradeTo","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newImplementation","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"upgradeToAndCall","outputs":[],"stateMutability":"payable","type":"function"}]

Contract Creation Code

Switch to Opcodes View Decompile Bytecode

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

Deployed Bytecode

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000bd17deee53a58b48548117a11a2e7bbf2d0d6fa7

-----Decoded View---------------
Arg [0] : implementationContract (address): 0xbd17DEee53a58B48548117a11a2E7bbF2D0d6Fa7

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 000000000000000000000000bd17deee53a58b48548117a11a2e7bbf2d0d6fa7

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proxy contracts

/Users/steven.cheung/Circle/centre-tokens/contracts/v1/FiatTokenProxy.sol
@openzeppelin/contracts/utils/Address.sol
/Users/steven.cheung/Circle/centre-tokens/contracts/upgradeability/UpgradeabilityProxy.sol
/Users/steven.cheung/Circle/centre-tokens/contracts/upgradeability/Proxy.sol
/Users/steven.cheung/Circle/centre-tokens/contracts/upgradeability/AdminUpgradeabilityProxy.sol

implementation contracts

/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v2/FiatTokenV2_2.sol
@openzeppelin/contracts/utils/Address.sol
@openzeppelin/contracts/token/ERC20/SafeERC20.sol
@openzeppelin/contracts/token/ERC20/IERC20.sol
@openzeppelin/contracts/math/SafeMath.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v2/FiatTokenV2_1.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v2/FiatTokenV2.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v2/EIP712Domain.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v2/EIP3009.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v2/EIP2612.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v2/AbstractFiatTokenV2.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v1/Pausable.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v1/Ownable.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v1/FiatTokenV1.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v1/Blacklistable.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v1/AbstractFiatTokenV1.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v1.1/Rescuable.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/v1.1/FiatTokenV1_1.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/util/SignatureChecker.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/util/MessageHashUtils.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/util/EIP712.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/util/ECRecover.sol
/Users/default-admin/Documents/circle/stablecoin-evm-private-usdc-mainnet-op/contracts/interface/IERC1271.sol

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Implementation:

0xdEd3b9a8...81E6d06dC

ZeppelinOS

Implementation:

0xdEd3b9a8...81E6d06dC

ZeppelinOS

Latest 1 proxy upgrade

Transaction Hash	Block	Age	Implementation	Event	Status
0x3e6a91c7a74cd9479b1805c3638acbe762b8d22a7c10cebc88cf093de9b5886e	113444778	2023-12-13 17:25:33	887 days ago	1702488333	0xdEd3b9a8...81E6d06dC	Upgraded	Active

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Compiler specific version warnings:

The compiled contract might be susceptible to the Solidity Compiler Bugs below:

LostStorageArrayWriteOnSlotOverflow (low-severity)
FullInlinerNonExpressionSplitArgumentEvaluationOrder (low-severity)
MissingSideEffectsOnSelectorAccess (low-severity)
AbiReencodingHeadOverflowWithStaticArrayCleanup (medium-severity)
DirtyBytesArrayToStorage (low-severity)
DataLocationChangeInInternalOverride (very low-severity)
NestedCalldataArrayAbiReencodingSizeValidation (very low-severity)
SignedImmutables (very low-severity)
ABIDecodeTwoDimensionalArrayMemory (very low-severity)
KeccakCaching (medium-severity)
EmptyByteArrayCopy (medium-severity)
DynamicArrayCleanup (medium-severity)

Tools & Services

Token

Overview

Max Total Supply

Holders

Market

Price

Onchain Market Cap

Circulating Supply Market Cap

Other Info

Token Contract (WITH 6 Decimals)

Filtered by Token Holder

Balance

Value

Contract Name

FiatTokenProxy

Compiler Version

Optimization Enabled

Other Settings

License

Contract Source Code (Solidity Standard Json-Input format)

Contract Security Audit

Contract Security Audit

Contract ABI

Contract Creation Code

Deployed Bytecode

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)