Token

JustCarbon Removal Token (JCR)

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ERC-20 Source Code (Proxy)

Implementation:

0x39A27F31...320F6436D

Marketplace

https://justcarbon.com/
E-mail
Github
Documentation

API

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

Overview

Max Total Supply

49,078.5 JCR

Holders

44 (0.00%)

Transfers

Market

Onchain Market Cap

Circulating Supply Market Cap

Other Info

Token Contract (WITH 18 Decimals)

0x84f20BF5bB4Be345D3ab37c565f732753435dBe3

Holders
Transfers
Info
DEX Trades
Contract
Analytics
Cards

OVERVIEW

JustCarbon is a blockchain-based carbon marketplace, where carbon emissions can be mitigated with the purchase of JustCarbon Removal tokens (JCR). One JCR token equates to exactly one tonne of carbon removed from the atmosphere, verified to the highest international standards.

UI Multiplier changes (based on UIMultiplierUpdated event). Displayed token amounts are scaled by the active multiplier.

Transaction Hash	Block	Age	Multiplier	Status

Exchange Data Source: Coingecko

#	Exchange	Pair	Price	24H Volume	% Volume

Contract
Read as Proxy
Write as Proxy
Past Implementations

Source Code Verified Similar Match: 0x22222222...e4fcA8268

Constructor Proxy Implementation:0x39A27F31...320F6436D

API

Contract Name

ERC1967Proxy

Compiler Version

v0.8.2+commit.661d1103

Optimization Enabled

Yes with 200 runs

Other Settings

default evmVersion

License

MIT

Sol2Uml
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Contract Source Code (Solidity)

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Contract ABI

API

[{"inputs":[{"internalType":"address","name":"_logic","type":"address"},{"internalType":"bytes","name":"_data","type":"bytes"}],"stateMutability":"payable","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":true,"internalType":"address","name":"beacon","type":"address"}],"name":"BeaconUpgraded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"implementation","type":"address"}],"name":"Upgraded","type":"event"},{"stateMutability":"payable","type":"fallback"},{"stateMutability":"payable","type":"receive"}]

Deployed Bytecode

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Deployed Bytecode Sourcemap

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Swarm Source

ipfs://9b8470f06e8a3960c912103fc2be177edaad69584ee3c7d2809ee737e79408e7

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proxy contracts

ERC1967Proxy

implementation contracts

/contracts/Token.sol
@openzeppelin/contracts-upgradeable/utils/introspection/IERC165Upgradeable.sol
@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol
@openzeppelin/contracts-upgradeable/utils/StringsUpgradeable.sol
@openzeppelin/contracts-upgradeable/utils/StorageSlotUpgradeable.sol
@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol
@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol
@openzeppelin/contracts-upgradeable/token/ERC20/extensions/IERC20MetadataUpgradeable.sol
@openzeppelin/contracts-upgradeable/token/ERC20/extensions/ERC20BurnableUpgradeable.sol
@openzeppelin/contracts-upgradeable/token/ERC20/IERC20Upgradeable.sol
@openzeppelin/contracts-upgradeable/token/ERC20/ERC20Upgradeable.sol
@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol
@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol
@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol
@openzeppelin/contracts-upgradeable/proxy/beacon/IBeaconUpgradeable.sol
@openzeppelin/contracts-upgradeable/proxy/ERC1967/ERC1967UpgradeUpgradeable.sol
@openzeppelin/contracts-upgradeable/access/IAccessControlUpgradeable.sol
@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol

Prompt

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Custom Contract ABI

Implementation:0x39A27F31...320F6436D EIP-1967

Latest 1 proxy upgrade

Transaction Hash	Block	Age	Implementation	Event	Status
0xe3d3f118f146de375e7ebbc7e5dcfabc0856670da7d90f0d97f3e30724ff7395	14120461	2022-02-01 13:46:28	1725 days ago	1643723188	0x39A27F31...320F6436D	Upgraded	Active

Proxy Contract	Transaction Hash	Block	Age	Proxy Type

[ Download: CSV Export ]

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Compiler specific version warnings:

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

MemoryByteArrayElementDeleteClearsWholeWord (low/medium-severity)
SpillSlotCollisionAcrossMutualRecursion (low/medium-severity)
UnsoundSpillInMutualRecursion (medium-severity)
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)

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