Token

USDC (USDC)

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ERC-20 Source Code (Proxy)

Implementation:

0x43506849...c054402dd

Circle

Stablecoin

https://www.circle.com/en/usdc
CoinMarketCap
CoinGecko
E-mail
Blog
X (Twitter)
Github
LinkedIn
Discord

API

Validate Token Balance

Check previous token balance
Add Token to MetaMask (Web3)
Update Token Info
Update Name Tag or Label
Submit Burn Details
Report/Flag Address

Overview

Max Total Supply

51,864,910,339.037734 USDC

Holders

7,391,940 ( 0.168%)

Market

Price

$1.00 @ 0.000568 ETH

Onchain Market Cap

$51,852,514,625.47

Circulating Supply Market Cap

$74,833,284,062.00

Other Info

Token Contract (WITH 6 Decimals)

0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48

Filtered by Token Holder

0x5777d92f208679DB4b9778590Fa3CAB3aC9e2168

Uniswap V3: DAI-USDC 4

Balance

1,056,446.841672 USDC

Value

$1,056,194.35 ( ~600.5848 Eth) [0.0020%]

Transfers
Info
Contract
Analytics
Cards

0x5777d92f208679db4b9778590fa3cab3ac9e2168

OVERVIEW

USDC is a US dollar-backed stablecoin issued by Circle. USDC is designed to provide a faster, safer, and more efficient way to send, spend, and exchange money around the world.

Market

Volume (24H)	:	$11,163,148,401.00
Market Capitalization	:	$74,833,284,062.00
Circulating Supply	:	74,850,109,475.00 USDC
Market Data Source: Coinmarketcap

Exchange Data Source: Coingecko

#	Exchange	Pair	Price	24H Volume	% Volume

Contract
Read as Proxy
Write as Proxy
Past Implementations
Implementation For

Source Code Verified Exact Match

Proxy

Implementation:

0x43506849...c054402dd

API

Contract Name

FiatTokenProxy

Compiler Version

v0.4.24+commit.e67f0147

Optimization Enabled

No with 200 runs

Other Settings

default evmVersion, Audited

License

-NA-

Sol2Uml
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Contract Source Code (Solidity)Audit Report

Contract Security Audit

Contract Security Audit Submitted

Callisto Network - Apr 7th, 2023 - Security Audit Report

Contract ABI

API

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

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)

0000000000000000000000000882477e7895bdc5cea7cb1552ed914ab157fe56

-----Decoded View---------------
Arg [0] : _implementation (address): 0x0882477e7895bdC5cea7cB1552ed914aB157Fe56

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000000882477e7895bdc5cea7cb1552ed914ab157fe56

Swarm Source

bzzr://a4a547cfc7202c5acaaae74d428e988bc62ad5024eb0165532d3a8f91db4ed24

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proxy contracts

FiatTokenProxy

implementation contracts

/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/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/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v2/FiatTokenV2_1.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v2/FiatTokenV2.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v2/EIP712Domain.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v2/EIP3009.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v2/EIP2612.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v2/AbstractFiatTokenV2.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v1/Pausable.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v1/Ownable.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v1/FiatTokenV1.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v1/Blacklistable.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v1/AbstractFiatTokenV1.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v1.1/Rescuable.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/v1.1/FiatTokenV1_1.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/util/SignatureChecker.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/util/MessageHashUtils.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/util/EIP712.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/util/ECRecover.sol
/Users/aloysius.chan/Repositories/circlefin/stablecoin-evm-private-eurc-mainnet-eth/contracts/interface/IERC1271.sol

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Implementation:

0x43506849...c054402dd

ZeppelinOS

Implementation:

0x43506849...c054402dd

ZeppelinOS

Latest 3 proxy upgrades

Transaction Hash	Block	Age	Implementation	Event	Status
0xae3ad89e569f27d47a8a02999a6d937c12aaa6bc50e66650e7cbd3244bde9951	18963716	2024-01-08 17:16:35	890 days ago	1704734195	0x43506849...c054402dd	Upgraded	Active
0xe2e40640ffd5f76538cd23660cf56f00bfebd5fe925ebad6b8067c4cee18a2c3	12317814	2021-04-26 19:14:51	1877 days ago	1619464491	0xa2327a93...cBc4cbDCF	Upgraded	Inactive
0xe6f0f754398d89583da8e4229c5d7aaa00739a3ae334ecfc2839ac396b4836e3	10743414	2020-08-27 15:32:54	2119 days ago	1598542374	0xB7277a6e...2023778A2	Upgraded	Inactive

Latest 2 proxy contracts using this implementation

Proxy Contract	Transaction Hash	Block	Age	Proxy Type
0x78cc1b4f8b1e0491db533c625c3ba0a786170d4c	0xfd43d4fe8cd4ed9b85bca584bfdecc7ee28ce531accdfd234d195f51fea774d0	16217930	2022-12-19 9:45:11	1276 days ago	1671443111	EIP-1967
0xc360606fc0a689D4f6b21517Da7c2a1fc2247C77	N/A	N/A		N/A		Custom

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Connect a Wallet

Connecting wallet for read function is optional, useful if you want to call certain functions or simply use your wallet's node.

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Compiler specific version warnings:

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

LostStorageArrayWriteOnSlotOverflow (low-severity)
DirtyBytesArrayToStorage (low-severity)
ABIDecodeTwoDimensionalArrayMemory (very low-severity)
KeccakCaching (medium-severity)
EmptyByteArrayCopy (medium-severity)
DynamicArrayCleanup (medium-severity)
ImplicitConstructorCallvalueCheck (very low-severity)
TupleAssignmentMultiStackSlotComponents (very low-severity)
MemoryArrayCreationOverflow (low-severity)
privateCanBeOverridden (low-severity)
SignedArrayStorageCopy (low/medium-severity)
ABIEncoderV2StorageArrayWithMultiSlotElement (low-severity)
DynamicConstructorArgumentsClippedABIV2 (very low-severity)
UninitializedFunctionPointerInConstructor_0.4.x (very low-severity)
IncorrectEventSignatureInLibraries_0.4.x (very low-severity)
ABIEncoderV2PackedStorage_0.4.x (low-severity)
ExpExponentCleanup (medium/high-severity)
EventStructWrongData (very low-severity)

Address Cards

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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)Audit Report

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)

Swarm Source