Pulse-v4-hook’s Uniswap v4 hook

0xc4a6…d0c4

Robinhood Chain (4663)

Pulse-v4-hook — HEY ties this Uniswap v4 hook to it: confirmed by HEY’s review as the project’s hook (not proven on chain).

What it is

A Uniswap v4 hook contract: the PoolManager calls it at the moments its address declares, in every pool created with it.

Contract: 0xc4a6b9e55df79289203bd6cfa4872d24567ad0c4
First pool HEY read: block 66,854,549 (time not read yet)

Who built it, and why HEY says so

Tied to: Pulse-v4-hookActive
On what basis: Confirmed by HEY’s review · 4 Oct · not proven on chain
How: Confirmed by HEY’s review as the project’s hook: HEY’s review confirmed it as the project’s; it is not proven on chain, and HEY’s own read would supersede it.

Callbacks its address declares

Called after a pool is created, before each swap and after each swap; may change a swap’s amounts after it.

afterInitialize — after a pool is created
beforeSwap — before each swap
afterSwap — after each swap
afterSwapReturnDelta — may change a swap’s amounts after it

Decoded from the address itself: what the PoolManager will call, never what the code does and never whether it is safe.

Source

Verified source: Not read: HEY has not read the explorer’s source record for this hook.
Proxy: Not read: HEY’s contract watch has not checked this address for a proxy.

Uniswap’s hooklist

Listed in Uniswap’s hooklist as PulseV4Hook · listed as dynamic fee

A third-party listing, shown as context: it does not tie the hook to a project. Read 8 Oct at commit a15ee37.

Pools using it

2 pools on tokens HEY tracks use it, initialised between block 66,854,549 and block 67,054,432.

Pools initialised with the hook on a token HEY tracks (HEY keeps no other pool): a count, the first and last init block, and the pools HEY recorded per UTC ISO week over the last 12 weeks. Context only: never an order, a score or a leaderboard.

Pools HEY recorded, week by week

Counted by when HEY recorded each pool, not by its block time: HEY keeps no block-time mapping. A week before HEY began recording is not zero — nothing was recorded then — and the week it began also holds every earlier pool it read back from the chain.

Week	Pools recorded
20 Jul	not recorded yet — before HEY began
27 Jul	not recorded yet — before HEY began
3 Aug	not recorded yet — before HEY began
10 Aug	not recorded yet — before HEY began
17 Aug	not recorded yet — before HEY began
24 Aug	not recorded yet — before HEY began
31 Aug	not recorded yet — before HEY began
7 Sep	not recorded yet — before HEY began
14 Sep	not recorded yet — before HEY began
21 Sep	not recorded yet — before HEY began
28 Sep	2 · includes earlier pools read back
5 Oct (so far)	0

When

Created: 19 Sep (block 66,825,547)
First pool initialised: block 66,854,549; time not read yet
Newest pool HEY read: block 67,054,432
HEY first decoded it: 1 Oct
Creation checked: 4 Oct

Related ship

Its deployment: None: this hook is listed, never counted as a ship.
Pulse-v4-hook’s latest ship: Code changes, week of 2026-09-14 – 2026-09-20 · 19 Sep

What HEY does not know

Routing allowlist: not known. Whether a router or aggregator routes swaps through this hook: HEY reads no routing allowlist.
Audit: not known. Whether its code was reviewed by an auditor: HEY reads no audit report for this hook, and a callback list is never a safety verdict.
Dynamic fee, from the chain: not known. Whether its pools use a dynamic fee: HEY does not keep a pool’s fee field. Uniswap’s hooklist lists it as dynamic fee — a third-party listing, not a chain reading.
Upgradeability: not known. Not read: HEY’s contract watch has not checked this address for a proxy.
Verified source: not known. Not read: HEY has not read the explorer’s source record for this hook.
First pool’s time: not known. HEY holds the first pool’s block, not its time.

Evidence

Uniswap is a trademark of Uniswap Labs. HEY Research Lab is not affiliated with or endorsed by Uniswap Labs. HEY reads Uniswap v4 pools from the public chain; this page describes what HEY found, not a partnership, an endorsement or a recommendation.