Bridge
A launchpad for Robinhood Chain

Flat fees are
played out.

They take one cut, one way.

Prysm pools split every swap.

Not a bonding curve. Not a flat tax. Every Prysm pool runs its own rules in a Uniswap v4 hook, written at launch and never edited.

Launch a token See the projects
Write your own rules
A stone prism on a plinth, a ribbed band around its waist. A white beam enters and leaves split into four colours.
1Apex

The pool

A Uniswap v4 pool. The whole supply sits in one curve, locked for good.

2The band

PrysmHook

Runs before and after every swap. Sees the trade, which side is ETH, and how long since launch.

3The ribs

Its answer, an amount

4The plinth

The launchpad

Token, pool, rules and liquidity in one transaction. It is the only LP, and it never withdraws.

On Prysm now

Live
Launches
…
$PRYSM bought back
… ETH
Volume, all time
… ETH

Rules, all time

Paid in cuts
… ETH
Protocol share
… ETH
Value burned
… ETH

Happening now

All projects

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Fig. 1

One swap, two launchpads

A

Flat-fee launchpad

Takes a fixed cut
100 coins cross a bridge; a toll booth sends 1 to the platform and 99 arrive.
99 arrive 1 to the platform, every time
RunsOn the platform's side, the same for every token.
SeesNothing about the token: not its age, not who launched it.
AnswersOne fixed fee, to one wallet.
B

Prysm pool

Splits by rules
100 coins pass a prism; 90 arrive, 5 go to named accounts, 3 are burned, 2 buy PRYSM.
90 arrive 5 cut to accounts it names 3 bought back and burned 2 buy $PRYSM
RunsBefore and after every swap, in the pool's own hook.
SeesThe trade, which side is ETH, and how long since launch.
AnswersThe fee right now, up to three cuts, a burn, or a refusal.
Panel 1

Write the rules into the pool.

Fig. 2

What a rule can answer

Take a cut

Up to three accounts, paid in ETH, never in your token.

Burn

Part of each fee buys the token back and burns it.

Set the fee

High at the launch block, falling to a steady fee.

Guard

Caps the biggest buy while the launch is fresh.

Vest

The creator's first buy unlocks over 30 days.

Never

Pull the liquidity.
Mint more.
Edit the rules.

The hook and the launchpad have no function that does.

Fig. 3

Buybacks and burns, without a keeper

A

A fee wallet and a team's bot

Runs off chain
Fees pile up in a wallet; a server with keys swaps and sends them off chain.
fees pile up in a wallet a server holds the keys- - - claim, swap, burn: off chain
The feeSent to a wallet. The pool can't tell a buy from a sell.
Runs onA team's server, holding the keys.
B

Prysm and anyone

Runs on chain
The prism pool feeds a furnace; a lever anyone can pull burns the bought-back tokens.
the burn pot, bought back and burned anyone pulls the lever, for a bounty cuts, claimable in ETH
The feeTaken by the hook on each swap, in ETH, on chain.
Runs onThe hook itself. Anyone sends the buyback and is paid for it.
Panel 2

Every swap buys $PRYSM.

1A swap pays its pool's feein ETH
2A share of every fee goes to the vaultprotocol share
3Anyone runs the vault's buybackfor a bounty
4$PRYSM is bought on its Pons pool and burnedto 0x…dEaD

$PRYSM

Launched on Pons

The protocol's share of every Prysm fee can only leave the vault one way: as a $PRYSM buyback, sent to the dead address. No keeper, no treasury wallet in between.

About $PRYSM

Build your own rules

Fork the hook: a fee that falls with holding time, a referral cut, perks for holders of another token, a fee that moves with volatility. Deploy it, point a launchpad at it, trade it on Uniswap v4.

Read the contracts