{"hook":"0x691Ce7C0f21BF8C0394E7e173b806F09745a0088","block":93176642,"bits":136,"flags":[{"bit":13,"key":"beforeInitialize","label":"Before initialize","risk":0,"does":"Runs once, when a pool is created.","fn":"beforeInitialize(address,(address,address,uint24,int24,address),uint160)","on":false},{"bit":12,"key":"afterInitialize","label":"After initialize","risk":0,"does":"Runs once, right after a pool is created.","fn":"afterInitialize(address,(address,address,uint24,int24,address),uint160,int24)","on":false},{"bit":11,"key":"beforeAddLiquidity","label":"Before add liquidity","risk":1,"does":"Can refuse a deposit, or only let some addresses provide liquidity.","fn":"beforeAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),bytes)","on":false},{"bit":10,"key":"afterAddLiquidity","label":"After add liquidity","risk":0,"does":"Runs after each deposit.","fn":"afterAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)","on":false},{"bit":9,"key":"beforeRemoveLiquidity","label":"Before remove liquidity","risk":2,"does":"Can refuse a withdrawal. LPs may not get out.","fn":"beforeRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),bytes)","on":false},{"bit":8,"key":"afterRemoveLiquidity","label":"After remove liquidity","risk":0,"does":"Runs after each withdrawal.","fn":"afterRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)","on":false},{"bit":7,"key":"beforeSwap","label":"Before swap","risk":1,"does":"Runs before every swap. On a dynamic-fee pool it can set the fee each time.","fn":"beforeSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),bytes)","on":true},{"bit":6,"key":"afterSwap","label":"After swap","risk":0,"does":"Runs after every swap.","fn":"afterSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),int256,bytes)","on":false},{"bit":5,"key":"beforeDonate","label":"Before donate","risk":0,"does":"Runs before a donation to LPs.","fn":"beforeDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)","on":false},{"bit":4,"key":"afterDonate","label":"After donate","risk":0,"does":"Runs after a donation to LPs.","fn":"afterDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)","on":false},{"bit":3,"key":"beforeSwapReturnDelta","label":"Before swap returns delta","risk":2,"does":"Can take part of what you put into a swap, or change how much is swapped.","fn":null,"on":true},{"bit":2,"key":"afterSwapReturnDelta","label":"After swap returns delta","risk":2,"does":"Can take part of what you get out of every swap.","fn":null,"on":false},{"bit":1,"key":"afterAddLiquidityReturnDelta","label":"After add returns delta","risk":2,"does":"Can charge LPs on the way in.","fn":null,"on":false},{"bit":0,"key":"afterRemoveLiquidityReturnDelta","label":"After remove returns delta","risk":2,"does":"Can take part of what LPs withdraw.","fn":null,"on":false}],"code":{"size":5165,"selectors":["0xd2f7265a","0xdc4c90d3","0xdc98354e","0xe1b4af69","0xe4786a5e","0xb47b2fb1","0xb6a8b0fa","0xc23da156","0xc4e833ce","0x4a51608e","0x575e24b4","0x6c2bbe7e","0x6fe7e6eb","0x9f063efc","0x03fd2a45","0x21d0ee70","0x259982e5","0x28d9c935"],"delegatecall":false,"selfdestruct":false,"create":false,"calls":2,"addresses":[]},"proxy":{"implementation":null,"admin":null,"beacon":null,"clone":false},"owner":null,"functions":[{"selector":"0xd2f7265a","name":"exchange()"},{"selector":"0xdc4c90d3","name":"poolManager()"},{"selector":"0xdc98354e","name":"beforeInitialize(address,(address,address,uint24,int24,address),uint160)"},{"selector":"0xe1b4af69","name":"afterDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)"},{"selector":"0xe4786a5e","name":"MAX_BURN_BPS()"},{"selector":"0xb47b2fb1","name":"afterSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),int256,bytes)"},{"selector":"0xb6a8b0fa","name":"beforeDonate(address,(address,address,uint24,int24,address),uint256,uint256,bytes)"},{"selector":"0xc23da156","name":"BURN_FLOOR()"},{"selector":"0xc4e833ce","name":"getHookPermissions()"},{"selector":"0x4a51608e","name":"cfg(bytes32)"},{"selector":"0x575e24b4","name":"beforeSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),bytes)"},{"selector":"0x6c2bbe7e","name":"afterRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)"},{"selector":"0x6fe7e6eb","name":"afterInitialize(address,(address,address,uint24,int24,address),uint160,int24)"},{"selector":"0x9f063efc","name":"afterAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)"},{"selector":"0x03fd2a45","name":"DEAD()"},{"selector":"0x21d0ee70","name":"beforeRemoveLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),bytes)"},{"selector":"0x259982e5","name":"beforeAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),bytes)"},{"selector":"0x28d9c935","name":null}],"history":{"pools":8,"firstTime":1788061153,"lastTime":1788193075},"pools":[{"id":"0xff3b46d227013ad972fd1e4d9d8a1946bedb1bf27263287458cfbabfaf90e43f","key":{"currency0":"0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","currency1":"0x20794b5950F39177AB70b957fea659072A4344a3","fee":10000,"tickSpacing":200,"hooks":"0x691Ce7C0f21BF8C0394E7e173b806F09745a0088"},"symbols":["WETH","BLNK"],"state":{"sqrtP":"2262084821697338426048672679818717","tick":205199,"protocolFee":0,"lpFee":10000,"liquidity":"35110706016229921718456"},"swaps":[{"zeroForOne":true,"ok":true,"amountIn":"614865697245860","paid":"614865697245860","got":"495974263030765716619896","expected":"495974263030765716619896","feePpm":10000,"takePpm":0},{"zeroForOne":false,"ok":true,"amountIn":"5369159621566274195488","paid":"5369159621566274195488","got":"6455290943985","expected":"6520495557274","feePpm":10000,"takePpm":10000}],"roundTrip":{"ok":true,"lossPpm":1,"added":["-3636783171864","-3928462206453212090257"],"removed":["3636783171863","3928462206453212090256"]}},{"id":"0x1fd78ae1ab8d36676badf1dc7edd5bbe1cce428fb5fd55802a91b94a4bd0e177","key":{"currency0":"0x0Bd7D308f8E1639FAb988df18A8011f41EAcAD73","currency1":"0x57F78e91e950A4551BaEfd25aad729Bd0886D965","fee":10000,"tickSpacing":200,"hooks":"0x691Ce7C0f21BF8C0394E7e173b806F09745a0088"},"symbols":["WETH","FAIR"],"state":{"sqrtP":"2235364906831640228249775112512596","tick":204961,"protocolFee":0,"lpFee":10000,"liquidity":"35463556747535360850878"},"swaps":[{"zeroForOne":true,"ok":true,"amountIn":"628468405480605","paid":"628468405480605","got":"495041275947462171618788","expected":"495041275947462171618788","feePpm":10000,"takePpm":0},{"zeroForOne":false,"ok":true,"amountIn":"476808004020327446184272","paid":"476808004020327446184272","got":"586777492586678","expected":"592701743100205","feePpm":10000,"takePpm":9996}],"roundTrip":{"ok":true,"lossPpm":1,"added":["-3946692247035","-3739886668693816350157"],"removed":["3946692247034","3739886668693816350156"]}}],"openCallbacks":[],"checks":[{"id":"01","title":"Permissions that touch your money","status":"caution","detail":"The address enables before swap returns delta. The hook is allowed to take; the next two checks measure whether it does."},{"id":"02","title":"What it takes from a swap","status":"pass","detail":"It takes 1% on top of the pool fee."},{"id":"03","title":"LPs can get out","status":"pass","detail":"Liquidity added and removed in the same block came back whole."},{"id":"04","title":"The fee is the fee","status":"pass","detail":"A fixed fee of 1%, written in the pool key."},{"id":"05","title":"No one holds the switch","status":"caution","detail":"No owner() but it has BURN_FLOOR."},{"id":"06","title":"The code cannot change","status":"pass","detail":"Not a proxy, no DELEGATECALL, no SELFDESTRUCT."},{"id":"07","title":"Only the PoolManager can call it","status":"pass","detail":"Each callback refused a call that did not come from the PoolManager."},{"id":"08","title":"Track record","status":"pass","detail":"8 pools over 51 days."}],"score":88,"verdict":"caution"}