A Uniswap v4 hook contract whose address declares 7 callbacks, first read initialising a pool at block 82,551,543. HEY attributes it to Hookr.fun: HEY’s review confirmed it as the project’s; it is not proven on chain.
- What it is
- Uniswap v4 hook
- Callbacks its address declares
- beforeInitialize, beforeAddLiquidity, beforeRemoveLiquidity, beforeSwap, afterSwap, beforeSwapReturnDelta, afterSwapReturnDelta. What the PoolManager will call, not what the hook does.
- First pool HEY read
- Block 82,551,543
- Attributed to
- Hookr.fun: HEY’s review confirmed it as the project’s; it is not proven on chain
- How it is tied
- Confirmed by HEY’s review on 2026-11-04. Not proven on chain; HEY’s own reading of the chain would supersede it.
- The hook’s page
- Who built this hook, its pools and what HEY does not know
- Where HEY read it
- HEY’s review (not proven on chain) · View at the source ↗
- When it happened
- , dated by the source to the minute
- HEY first saw it
- (28d 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.
Follow Hookr.fun to see the next change HEY records, with its evidence.
Cite this
Absolute dates in UTC and a link that does not move.
Hookr.fun: A Uniswap v4 hook contract whose address declares 7 callbacks, first read initialising a pool at block 82,551,543. HEY attributes it to Hookr.fun: HEY’s review confirmed it as the project’s; it is not proven on chain.
Happened: 2026-10-07
Source: HEY’s review (not proven on chain), https://robinhoodchain.blockscout.com/address/0x89c9fb50d1f03192230ffb1c279bb6e7d3fe6acc
Recorded by HEY Research Lab: 2026-10-07 (UTC); accessed 2026-11-04 (UTC)
Evidence v4hook:4663:0x89c9fb50d1f03192230ffb1c279bb6e7d3fe6acc: https://heyresearch.xyz/evidence/v4hook:4663:0x89c9fb50d1f03192230ffb1c279bb6e7d3fe6acc
Receipt: https://heyresearch.xyz/api/evidence/v4hook%3A4663%3A0x89c9fb50d1f03192230ffb1c279bb6e7d3fe6accEvidence id v4hook:4663:0x89c9fb50d1f03192230ffb1c279bb6e7d3fe6accAs dataHow HEY works