{"address":"0xc9538f3398ff5e15a1e6e00c968e0f983e56e0cc","chain":"robinhood","chainName":"Robinhood Chain","chains":["robinhood"],"name":"V4FunFeeHook","listed":true,"description":"Volatility-based swap fee hook for ETH/token pools launched via the v4.fun platform. Charges 1–7% fees in ETH on buys (via beforeSwap delta) and sells (via afterSwap delta), with the fee rate scaling based on the previous swap's tick movement; fees are sent directly to a per-pool fee recipient.","deployer":null,"creationTx":null,"codeBytes":5832,"implementation":null,"verified":true,"audit":null,"upgradeable":false,"swapAccess":"other","dynamicFee":false,"customData":false,"flags":["beforeInitialize","beforeSwap","afterSwap","beforeSwapReturnsDelta","afterSwapReturnsDelta"],"flagBits":8396,"lines":[{"key":"access","level":"red","text":"Can block swaps","detail":"Swaps are gated (other): only some addresses, or only at some times, can trade through it."},{"key":"afterSwapReturnsDelta","level":"red","text":"Can take a fee from your output","detail":"After the pool fills your swap, the hook can keep part of what you were about to receive."},{"key":"beforeSwapReturnsDelta","level":"red","text":"Can change the price you get","detail":"Before your swap runs, the hook can take or add tokens, so the amount you get is set by its code as well as the pool."},{"key":"beforeSwap","level":"amber","text":"Runs code before your swap and can block it","detail":"The hook is called before every swap. It can revert, which makes your swap fail."},{"key":"afterSwap","level":"amber","text":"Runs code after your swap and can block it","detail":"The hook is called after every swap. It can revert, which undoes your swap."},{"key":"beforeInitialize","level":"grey","text":"Runs code when a pool is created","detail":"Called once, when someone creates a pool with this hook."}],"score":60,"scoreItems":[{"label":"Can change swap amounts","points":-25},{"label":"Swap access is gated","points":-15}],"pools":2,"activePools":0,"swaps24":0,"swaps7":0,"volume24Usd":0,"volume7Usd":0,"firstSeenBlock":47553689,"firstSeen":1787844891,"ageDays":59.99025462962963,"poolList":[{"id":"0x8e4ea9940d21090a05b7cb01b0d314ca123caa95593f4b89fc9085509304bb29","t0":{"a":"0x0000000000000000000000000000000000000000","s":"ETH","d":18,"usd":2331.971314},"t1":{"a":"0x528f35220756b956c47e1ec40a83e96cc866a50a","s":"?","d":18,"usd":null},"fee":0,"ts":60,"b":48869863,"t":1787977769,"s7":0,"s24":0,"v7":0,"u":0},{"id":"0xa3865ab490869899787db0869ff26537109cfd6a5390c736b5b040ad8c311106","t0":{"a":"0x0000000000000000000000000000000000000000","s":"ETH","d":18,"usd":2331.971314},"t1":{"a":"0x7a28331c3f0ec88d52ef99915aa48d18fb544d8d","s":"?","d":18,"usd":null},"fee":0,"ts":60,"b":47553689,"t":1787844891,"s7":0,"s24":0,"v7":0,"u":0}],"daily":null,"days":7,"probe":null,"snapshot":{"block":98513114,"ts":1793028049}}