A Uniswap v4 hook contract whose address declares 3 callbacks, first read initialising a pool at block 100,222,941. HEY attributes it to v4 Builder: a factory the project lists as its own contract created it, as one of the factory’s instances.

What it is

Uniswap v4 hook

Callbacks its address declares

afterInitialize, beforeRemoveLiquidity, beforeSwap. What the PoolManager will call, not what the hook does.

First pool HEY read

Block 100,222,941

Attributed to

v4 Builder: a factory the project lists as its own contract created it, as one of the factory’s instances

Made by

Made by the project’s factory: 0x227a41c9b869f7ce396337c88ffd0226917abf4a. An instance is the factory’s product in use, not the project’s shipping.

The hook’s page

Who built this hook, its pools and what HEY does not know

Where HEY read it

The project’s own contract listing · View at the source ↗

When it happened

2026-10-28, dated by the source to the minute

HEY first saw it

2026-10-28 (11h ago)These are two different clocks: when the work happened, as the source dates it, and when HEY first read it.

Counts toward building

No. It is context: it does not change activity status or Build Momentum.

What it does not say

A contract record says what the chain shows about a contract. It is not a safety check, and it does not say who runs the contract.