{"hook":"0xa42D91Dd900384873CFd907Ab8d1047846b34044","block":93328885,"bits":68,"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":false},{"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":true},{"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":false},{"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":true},{"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":4495,"selectors":["0x21d0ee70","0x259982e5","0x3daa98d4","0x575e24b4","0x5bb47808","0x6c2bbe7e","0x6fe7e6eb","0x8aa94be2","0x9f063efc","0xb47b2fb1","0xb6a8b0fa","0xc45a0155","0xc4e833ce","0xd5f39488","0xdc4c90d3","0xdc98354e"],"delegatecall":false,"selfdestruct":false,"create":false,"calls":3,"addresses":[]},"proxy":{"implementation":null,"admin":null,"beacon":null,"clone":false},"owner":null,"functions":[{"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":"0x3daa98d4","name":null},{"selector":"0x575e24b4","name":"beforeSwap(address,(address,address,uint24,int24,address),(bool,int256,uint160),bytes)"},{"selector":"0x5bb47808","name":"setFactory(address)"},{"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":"0x8aa94be2","name":null},{"selector":"0x9f063efc","name":"afterAddLiquidity(address,(address,address,uint24,int24,address),(int24,int24,int256,bytes32),int256,int256,bytes)"},{"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":"0xc45a0155","name":null},{"selector":"0xc4e833ce","name":"getHookPermissions()"},{"selector":"0xd5f39488","name":"deployer()"},{"selector":"0xdc4c90d3","name":"poolManager()"},{"selector":"0xdc98354e","name":"beforeInitialize(address,(address,address,uint24,int24,address),uint160)"}],"history":{"pools":4,"firstTime":1789033544,"lastTime":1789184328},"pools":[{"id":"0xed82aa2a29794e270e2e9191587172f0157e716e5f392ebb169aaa228387ee7a","key":{"currency0":"0x0000000000000000000000000000000000000000","currency1":"0x90D1D926e843f85b99d0B378dcdF6C4f684d57F5","fee":0,"tickSpacing":60,"hooks":"0xa42D91Dd900384873CFd907Ab8d1047846b34044"},"symbols":["ETH","HOMEPAD"],"state":{"sqrtP":"1416777754476458496474453826831057","tick":195841,"protocolFee":0,"lpFee":0,"liquidity":"50532637584451982127455"},"swaps":[{"zeroForOne":true,"ok":true,"amountIn":"37732194020724","paid":"37732194020724","got":"11944988762206033585183","expected":"12065645214349528873922","feePpm":0,"takePpm":10000},{"zeroForOne":false,"ok":true,"amountIn":"451818611795917787859548","paid":"451818611795917787859548","got":"1398099008294229","expected":"1412221220499221","feePpm":0,"takePpm":10000}],"roundTrip":{"ok":true,"lossPpm":1,"added":["-9158077207257","-2675203509889502666973"],"removed":["9158077207256","2675203509889502666972"]}},{"id":"0xb846faa60e8e3630f2a70d70a1608d5a4e82cb41a46aa1a58f6d165c201d9fb9","key":{"currency0":"0x0000000000000000000000000000000000000000","currency1":"0x979EF96EC6092A1AF30Ae0a428593Ae28cbEbE5c","fee":0,"tickSpacing":60,"hooks":"0xa42D91Dd900384873CFd907Ab8d1047846b34044"},"symbols":["ETH","BELL"],"state":{"sqrtP":"1442416224731008384459506175066842","tick":196199,"protocolFee":0,"lpFee":0,"liquidity":"50532637584451982127455"},"swaps":[{"zeroForOne":true,"ok":true,"amountIn":"1387813016163903","paid":"1387813016163903","got":"455167335745858186426728","expected":"459764985601876955986593","feePpm":0,"takePpm":10000},{"zeroForOne":false,"ok":true,"amountIn":"2565952412482313522985","paid":"2565952412482313522985","got":"7664089204059","expected":"7741504246524","feePpm":0,"takePpm":10000}],"roundTrip":{"ok":true,"lossPpm":1,"added":["-8205815695922","-2985279274060935599341"],"removed":["8205815695921","2985279274060935599340"]}}],"openCallbacks":[],"checks":[{"id":"01","title":"Permissions that touch your money","status":"caution","detail":"The address enables after 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 0%, written in the pool key."},{"id":"05","title":"No one holds the switch","status":"caution","detail":"No owner() but it has setFactory."},{"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":"4 pools over 39 days."}],"score":88,"verdict":"caution"}