bellr.fun

The interface for BELLR — Uniswap v4 hooks that read the US trading calendar, live on Robinhood Chain.

A stock-paired pool keeps quoting after the equity market closes and nobody can hedge. BELLR makes the pool change its own rules at the bell: fees widen, size caps bite, and a halted stock stops the pool with it.

Live contracts — Robinhood Chain (4663)

BellrPool	0x5B515cD5121efcbd1bA037be5a62d76258d220c4
TollHook	0xC741bc587588981F096a8EB8b0bf374B5d22a080
SessionCalendar	0xd9c0421A5759b1aA2609162BD2178f147cd7E542
BellrOracle	0x55F4B8e88B7F1C50740a6909dB25E187D79015d0

The hook addresses end in 2080 and 20C4 because Uniswap v4 reads a hook's permissions off its own address. They were mined, not chosen.

There is no BELLR token. Arming a pool costs gas and nothing else.

Running it

No build step. Plain HTML, CSS and ES modules.

python3 -m http.server 8000     # or any static server

The page computes the US market calendar in the browser, so it works with no backend at all. A read API can be pointed at it for live pool data:

<script>window.BELLR_API = 'https://your-indexer';</script>

Otherwise it skips the call rather than making every visitor's browser try to reach their own machine.