RobinHook

When v4 shipped on Robinhood Chain, one detail stood out: hooks. Custom logic that runs at the exact point of exchange, not wrapped around it or bolted on top. That's a small technical change with a large design space behind it. RobinHook is an attempt to show what that actually means.

$HOOK uses a custom v4 hook to render a unique Robin bunny entirely on-chain — no external storage, no IPFS. Each rabbit is tied to a specific integer amount of $HOOK: 1, 2, 3, and so on. When a swap occurs, the hook derives a hash encoding ear tilt, coat, and accessory.

That hash is the input. The renderer reads it and assembles a unique Robin — crown, shades, bowtie, wings, or something the pool has never produced before. The object's appearance is a function of market activity.

The name: Robinhood was always about the trade. A hook is a rule enforced at the point of exchange — a small, alert creature that appears when value moves. Robin + Hook, where Hook is whatever the pool decides to make next.