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Evidence · Contract

A Uniswap v4 hook contract whose address declares 6 callbacks, first read initialising a pool at block 86,930,795. HEY attributes it to Courier World: the account that launched its token created it through a deterministic deployer.

What it is
Uniswap v4 hook
Callbacks its address declares
beforeInitialize, beforeAddLiquidity, beforeSwap, afterSwap, beforeSwapReturnDelta, afterSwapReturnDelta. What the PoolManager will call, not what the hook does.
First pool HEY read
Block 86,930,795
Attributed to
Courier World: the account that launched its token created it through a deterministic deployer
The deployment
The follow-up deployment record
The hook’s page
Who built this hook, its pools and what HEY does not know
Where HEY read it
The Robinhood Chain explorer · View at the source ↗
When it happened
, dated by the source to the minute
HEY first saw it
(2h ago)These are two different clocks: when the work happened, as the source dates it, and when HEY first read it.
How it is backed
Publicly verified
Counts toward building
Yes. It is one of the records HEY’s activity status is built from.
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.

Cite this

Absolute dates in UTC and a link that does not move.

Courier World: A Uniswap v4 hook contract whose address declares 6 callbacks, first read initialising a pool at block 86,930,795. HEY attributes it to Courier World: the account that launched its token created it through a deterministic deployer.
Happened: 2026-10-12
Source: The Robinhood Chain explorer, https://robinhoodchain.blockscout.com/address/0x90c3aaae34cf4681701452379d3819d6bc8fe8cc
Recorded by HEY Research: 2026-10-12 (UTC); accessed 2026-10-12 (UTC)
Evidence v4hook:4663:0x90c3aaae34cf4681701452379d3819d6bc8fe8cc: https://heyresearch.xyz/evidence/v4hook:4663:0x90c3aaae34cf4681701452379d3819d6bc8fe8cc
  Receipt: https://heyresearch.xyz/api/evidence/v4hook%3A4663%3A0x90c3aaae34cf4681701452379d3819d6bc8fe8cc

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Evidence id v4hook:4663:0x90c3aaae34cf4681701452379d3819d6bc8fe8ccAs dataHow HEY works