Reading the hook.
The address, the bytecode, then a swap each way through its pool. A few seconds.
v4 hook · Robinhood Chain · block 93,175,411
0x6D26…c044
The eight checks
6 pools use this hook, the first one 79 d ago.
- 01caution
Permissions that touch your moneyThe address enables after swap returns delta. The hook is allowed to take; the next two checks measure whether it does.
- 02caution
What it takes from a swapIt takes 3% of each swap on top of the pool fee.
- 03pass
LPs can get outLiquidity added and removed in the same block came back whole.
- 04pass
The fee is the feeA fixed fee of 0%, written in the pool key.
- 05caution
No one holds the switchOwned by 0xd6F0e8943421E19f3d800542A2aC056bA929c8ac. Owner-style functions: setFactory, setPlatformTreasury, transferOwnership.
- 06pass
The code cannot changeNot a proxy, no DELEGATECALL, no SELFDESTRUCT.
- 07pass
Only the PoolManager can call itEach callback refused a call that did not come from the PoolManager.
- 08pass
Track record6 pools over 78 days.
Measured at block 93,175,411. A hook with an owner or a dynamic fee can behave differently later; scan again before a large trade.
What the address allows
A v4 hook's permissions are the last fourteen bits of its address. The PoolManager calls only what they switch on.
address & 0x3fff0x0044 · 00000001000100
- bit 13Before initialize
- bit 12After initialize
- bit 11Before add liquidity
- bit 10After add liquidity
- bit 9Before remove liquidity
- bit 8After remove liquidity
- bit 7Before swap
- bit 6After swap
- bit 5Before donate
What it did to a real swap
A small swap each way and a liquidity round trip, run through the PoolManager and this hook inside a call that is never sent. The pool fee is expected; anything else missing is the hook.
CASHCAT / CCPRINT
fee 0%- Swap CASHCAT → CCPRINThook takes 3%
- Swap CCPRINT → CASHCAThook takes 3%
- Add, then remove liquiditycame back whole
pool 0x787020ff54be5ce1772ddbb4eba6cff65000422c0e8640f7a5eca1e1c4806366
Read from the bytecode
- Code size
- 7,749 bytes
- Owner
- 0xd6F0e8943421E19f3d800542A2aC056bA929c8ac
- Proxy
- no
- DELEGATECALL
- absent
- SELFDESTRUCT
- absent
- Outside calls
- 8
- Callbacks open to anyone
- none
Its functions, uncensored
Selectors found in the dispatcher, named from the public signature database. Red ones are what an owner usually keeps for itself.
- 0x0e5c011e harvest
- 0x21d0ee70 beforeRemoveLiquidity
- 0x259982e5 beforeAddLiquidity
- 0x39e16d64 tokenFees
- 0x575e24b4 beforeSwap
- 0x5bb47808
bit 4
After donate
bit 3Before swap returns deltabit 2After swap returns deltabit 1After add returns deltabit 0After remove returns delta- After swap. Runs after every swap.
- After swap returns delta. Can take part of what you get out of every swap.
setFactory
0x68d09285 unknown0x6c2bbe7e afterRemoveLiquidity0x6d771c54 pairFees0x6fe7e6eb afterInitialize0x715018a6 renounceOwnership0x7cd86d60 setPlatformTreasury0x8d16539a harvestBounded0x8da5cb5b owner0x91dd7346 unlockCallback0x9f063efc afterAddLiquidity0xb47b2fb1 afterSwap0xb6a8b0fa beforeDonate0xc45a0155 unknown0xc4e833ce getHookPermissions0xcae94843 HOLDER_FEE_BPS0xcc718f76 config0xdc4c90d3 poolManager0xdc98354e beforeInitialize0xe138818c platformTreasury0xe1b4af69 afterDonate0xf2fde38b transferOwnership