Live on public testnet

Draw the line.
Hold it.

Back a corridor on a live price to hold or breach. One backstop settles every side, onchain.

BTC81,41460m
live feed
Survival
34.2%
Hold
x2.82
Breach
x1.47

Two rails. One price between them.

Your read becomes a shape: how far it leans, how much room it gets, how long it runs. Those three set one number, the chance the corridor survives, and that number prices both sides of it. Calling the direction pays nothing here.

The shape is built one control at a time, then priced, then run. Every figure on screen comes out of the model the terminal uses.
Angle
-1.8 to +1.8
How far the corridor leans across its run. Steeper drifts toward a rail faster.
Width
0.75x to 2.4x span
Rail distance from the centre, measured in the asset's own typical move. Tighter is harder to hold.
Duration
10m to 24h
How long it runs. Longer gives the price more time to find a rail.

Path over direction

A coin flip on up or down is a market anyone can make. Holdline asks something harder and pays for it: where the price can travel, and for how long, without leaving the corridor you drew.

Nothing to bootstrap

One backstop quotes both sides of anything you draw, so a market exists the second you draw it.

Two products, one core

Sideline turns every running line into a two-sided market. Same contracts, same backstop, same token.

markets on one payout table
shortest run you can take
backstop behind every payout

Check the maths. Do not take our word.

  • The oracle sets the price, we never do

    Reports aggregate across venues and arrive signed. Nobody paints a wick to knock you out of a position.

  • Odds you can recompute yourself

    Your multiplier is the inverse of your side's win probability, less a 3.5% spread printed next to it.

  • Only the position you open is at risk

    The rest of your balance stays where you put it. No operator can reach it and neither can we.

  • A run that reaches its end cannot get stuck

    Settling at the end needs no price report at all, so a feed outage can never trap your funds.

Opening is a request. The entry binds to a signed price report covering your timestamp, which is the moment your multiplier stops moving.
Two products

Holdline

Drag a corridor onto the live price. Back it to keep both rails to the end, or to break one before it gets there. One survival probability prices both sides.

Runs to the endhold pays in full

Every rail holds and the whole multiple pays out.

Close earlymarked to market

Take the live value any second, less a 4% penalty.

A rail goesbreach pays in full

You set the rails, so you carry them. Touch one and hold closes at zero.

Fee schedule
Open feemax(0.8%, 0.5 $HOLD)
Profit fee9% of profit
Author's cut20% of that profit fee
Spread3.5%, both sides
Ceilingx30
Minimum position10 $HOLD

Fees sit beside the odds, never inside them. The profit fee only touches the part of a payout above your stake.

Sideline

Your own book is one thing. Everyone else's is the other. Back the traders you rate, fade the ones you do not, and read their whole record before you size in.

As the price leans toward a rail, holding gets dearer and breaching gets cheaper. Both sides move off the same number, so they can never drift apart.

Open the book
Whoever drew the line earns a cut of every winning ticket taken inside it, so a corridor other people want to trade pays past your own ride.
Economy

Everything runs on $HOLD.

One backstop, one token, one ledger. Every product on these rails is a new front end on the same core, and every position opens and settles in $HOLD.

01

You play in $HOLD

Fund a balance, shape a line, ride it or close it early. Every step is priced in the open.

02

Volume feeds the backstop

The published fee on that volume is the venue's only revenue, and it routes back in.

03

A deeper backstop clears more

Payouts are denominated in $HOLD, so a stronger token raises what one position can win.

04

Stakers hold the floor

Stake to back settlement and take a share of real fees. Staked supply sits out of circulation.

Supply, 1,000,000,000 $HOLD

Settlement backstop25%
Team18%
Liquidity17%
Community and airdrop14%
Product treasury10%
Market making and listings7%
Security and audits5%
Partnerships and grants4%

The backstop allocation never reaches the market. It is collateral behind payouts, and a timelock holds it. No team tokens release at launch.

$HOLD contract
Launch soon

$HOLD launches on Robinhood Chain. The address publishes here and in the docs the moment the token generation event closes, with a block explorer link beside it.

ChainRobinhood Chain
Chain ID4663
Testnet ID46630
Read the tokenomics

Draw your first corridor.

Free testnet balance, no invite code, no email. Connect a wallet and the terminal is open.