0xd40C55475D4FEA67415cD12Abc28c949fc7a7FEE
on Arbitrum One Mainnet (42161)
Exact Match
Runtime Bytecode
Creation Bytecode
- Contract Name
- OstiumTradingStorage
- Compilation Target
- src/OstiumTradingStorage.sol:OstiumTradingStorage
- Language
Solidity- Compiler
- solc 0.8.24+commit.e11b9ed9
- EVM Version
- shanghai
- Verified At
- 2026-04-29 11:56:45 UTC
- Deployer
- 0x7Dd189a29F2DB130b61a93A867b6fb404eb2e321
- Deployment Transaction
- 0x255e8fb102dead37f3cc4789394221aa15345a3f9431581daa0b28c611745bb8
- Block Number
- 457215040
- Transaction Index
- 5
Read/Write Contract on:
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Source Code
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Compiler Settings
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Contract Metadata
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Creation Bytecode
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CBOR Auxdata
These values are what Sourcify extracted from the recompiled bytecode. If these values are different in the on-chain bytecode, they will show up in Transformations section.
CBOR Auxdata id: 1
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Solidity metadata.json IPFS hash: QmVwtRwWXbLTGFVMuyFcu41qtSP4Jbb8VmLvQmEKiLr8LJ
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Runtime Bytecode
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CBOR Auxdata
These values are what Sourcify extracted from the recompiled bytecode. If these values are different in the on-chain bytecode, they will show up in Transformations section.
CBOR Auxdata id: 1
View on
Solidity metadata.json IPFS hash: QmVwtRwWXbLTGFVMuyFcu41qtSP4Jbb8VmLvQmEKiLr8LJ
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Storage Layout
For non-default storage allocations (e.g. EIP-7201) check out 
| Slot | Offset | Bytes | Label | Type | Contract |
|---|---|---|---|---|---|
| 0 | 0 | 20 | usdc | address | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 1 | 0 | 20 | registry | contract IOstiumRegistry | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 2 | 0 | 32 | devFees | uint256 | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 3 | 0 | 4 | totalOpenTradesCount | uint32 | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 3 | 4 | 1 | maxTradesPerPair | uint8 | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 3 | 5 | 1 | maxPendingMarketOrders | uint8 | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 4 | 0 | 32 | openTrades | mapping(address ⇒ mapping(uint16 ⇒ mapping(uint8 ⇒ struct IOstiumTradingStorage.Trade))) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 5 | 0 | 32 | openTradesInfo | mapping(address ⇒ mapping(uint16 ⇒ mapping(uint8 ⇒ struct IOstiumTradingStorage.TradeInfo))) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 6 | 0 | 32 | openTradesCount | mapping(address ⇒ mapping(uint16 ⇒ uint32)) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 7 | 0 | 32 | openLimitOrderIds | mapping(address ⇒ mapping(uint16 ⇒ mapping(uint8 ⇒ uint256))) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 8 | 0 | 32 | openLimitOrdersCount | mapping(address ⇒ mapping(uint16 ⇒ uint8)) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 9 | 0 | 32 | orderTriggerBlock | mapping(address ⇒ mapping(uint16 ⇒ mapping(uint8 ⇒ mapping(enum IOstiumTradingStorage.LimitOrder ⇒ uint256)))) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 10 | 0 | 32 | pairLimitOrders | mapping(uint16 ⇒ struct IOstiumTradingStorage.OpenLimitOrder[]) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 11 | 0 | 32 | reqID_pendingMarketOrder | mapping(uint256 ⇒ struct IOstiumTradingStorage.PendingMarketOrderV2) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 12 | 0 | 32 | reqID_pendingAutomationOrder | mapping(uint256 ⇒ struct IOstiumTradingStorage.PendingAutomationOrder) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 13 | 0 | 32 | pendingOrderIds | mapping(address ⇒ uint256[]) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 14 | 0 | 32 | pendingMarketOpenCount | mapping(address ⇒ mapping(uint16 ⇒ uint8)) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 15 | 0 | 32 | pendingMarketCloseCount | mapping(address ⇒ mapping(uint16 ⇒ uint8)) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 16 | 0 | 32 | pairTraders | mapping(uint16 ⇒ address[]) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 17 | 0 | 32 | pairTradersId | mapping(address ⇒ mapping(uint16 ⇒ uint256)) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 18 | 0 | 32 | openInterest | mapping(uint16 ⇒ uint256[3]) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 19 | 0 | 32 | reqID_pendingRemoveCollateral | mapping(uint256 ⇒ struct IOstiumTradingStorage.PendingRemoveCollateral) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 20 | 0 | 32 | builderData | mapping(address ⇒ mapping(uint16 ⇒ mapping(uint256 ⇒ struct IOstiumTradingStorage.BuilderFee))) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 21 | 0 | 32 | limitOrderIdCounter | uint256 | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 22 | 0 | 32 | limitOrderIds | mapping(address ⇒ mapping(uint16 ⇒ mapping(uint8 ⇒ uint256))) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 23 | 0 | 32 | pendingMarketCloseTradeIds | mapping(uint256 ⇒ uint256) | src/OstiumTradingStorage.sol:OstiumTradingStorage |
| 24 | 0 | 20 | maxOIKeeper | address | src/OstiumTradingStorage.sol:OstiumTradingStorage |
Transient Storage Layout
Transient storage layout is only available for Solidity contracts compiled with version ≥ 0.8.27.
Standard JSON Input
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Standard JSON Output
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