how 0xpresso works

an espresso is a basket with fixed token quantities per unit, like an etf share. it holds 2 to 8 components from the universe: robinhood stock tokens (aapl, nvda, spy…) priced by chainlink feeds on chain, and trending robinhood chain tokens priced by dexscreener. weights are set in basis points summing to 10,000 at creation; from then on each unit holds the same token amounts forever.

a unit is priced by its nav: the sum of every component quantity times its live price. nav updates every price tick, so an espresso moves exactly as its contents move. there is no manager, no rebalancing, and no discretion.

roast

roast is a risk tier derived from the blend, not a choice. at least 70% stocks by weight is light; at least 70% chain tokens is dark; anything between is medium. the roast ring around every espresso mark tells you which at a glance.

house blends

americano

aapl · msft · nvda · amzn · googl · meta

mega-cap stocks, light roast

cortado

spy · qqq + top 4 trending tokens

medium roast

ristretto

nvda · amd · asml · tsm · mu

semis, light roast

affogato

50/50 stocks and top memes

medium roast

lungo

coin · mstr · crcl + eth-beta memes

medium roast

doppio

top 6 trending tokens

dark roast

anyone can brew their own at /brew: name it, pick components and weights, and seed it with a first mint of at least $10. the creator is just the first holder.

usdg balancein the ledger

mintat live nav

unitsin your position

redeemat live nav

usdg balanceminus fee

mint turns usdg into units at the current nav: units = usd × (1 − mintFee) ÷ nav. redeem turns units back into usdg: usd = units × nav × (1 − redeemFee). both happen instantly against the ledger; there is no order to wait for and no slippage beyond the fee.

mint fee

0.5%

to the fee pool

redeem fee

0.5%

to the fee pool

starting nav

$100.00 per unit

at brew time

unit precision

12 decimals

your holdings viewmultiplies your units by each component's quantity per unit, so you always see how much of each token your cup represents.

every position accrues a rebate, the crema. it streams continuously as positionValue × apr × elapsed ÷ year × boost and is claimable to your usdg balance from the fee pool at any time.

rebate apr

12%

on position value

boost

1.0 / 1.25 / 1.5×

by barista tier: none / junior / head

claim

any time

paid from the fee pool

the market is an asks-only book per espresso. list units at any usd price; the units lock in your position until the ask fills or you cancel. a buyer pays usdg, the seller receives it minus the market fee, and partial fills are allowed.

every ask shows its premium or discount to live nav, so a cup selling above nav is obvious, and one below nav is a bargain against redeeming.

1. 01
   list

   choose an espresso you hold, units, and a price. units lock.

2. 02
   fill

   anyone with balance can take some or all of the ask at that price.

3. 03
   settle

   units move to the buyer, usdg moves to the seller net of fee, an activity event fires.

4. 04
   cancel

   unfilled units unlock instantly.

stake usdg as a barista to earn 7% of all fees, split pro rata by stake and streamed with a reward-per-token accumulator, so payouts are exact and instant to claim. the pool is the stated backstop for instant redemptions.

junior

≥ $25 staked

rebate boost 1.0×, badge

barista

≥ $250 staked

rebate boost 1.25×

head

≥ $2,500 staked

rebate boost 1.5×

unstake

instant

ledger transfer, no lockup

the leaderboard ranks baristas by stake and lifetime earnings.

a shot is a parlay on the universe. pick 2 to 5 assets, a window (5m, 15m, 30m, 1h) and a mode (safe, bold, wild). every leg must close above its target before the clock runs out or the ticket is dead. land all legs and the stake pays the product of the leg multipliers.

volatility proxy

σ = max(|1h change|, 0.15%)

stocks floor at 0.10%

target move

safe 0.6σ · bold 1.2σ · wild 2.5σ

floors 0.20% / 0.45% / 1.0%, scaled by √(window ÷ 15m)

leg multiplier

clamp(1 + target × k, 1.15, 6)

k = 1.6 / 2.2 / 3.0

stake

$1 – $100

payout capped at $2,500

the price loop checks every open ticket each tick. a leg is hit the first time price is at or above its target; the ticket wins when all legs are hit, or loses at expiry. stale or held assets cannot be picked.

everything below your wallet is a ledger. value enters and leaves through the treasury on robinhood chain.

1. 01
   deposit

   send usdg or eth from your wallet to the treasury (the deposit button does this with one wallet confirmation), then the server verifies the transfer on chain and credits your balance once per transaction hash. usdg credits 1:1; eth is converted to usdg at the chainlink eth/usd print at the moment the transfer is verified.

2. 02
   use it

   mint, list, stake, shoot. all instant, all in the ledger.

3. 03
   withdraw

   request usdg to any address. the ledger is debited first; the treasury then signs a usdg transfer, or holds the request as queued while payouts are paused on this deployment.

accepted in

usdg or eth

eth converts at the chainlink eth/usd print when the transfer confirms; the ledger holds usdg

paid out in

usdg only

withdrawals are never sent as eth

minimum withdrawal

$5.00

payouts

queued

sent when the treasury is enabled

paper mode

while payouts are disabled, every new account is credited a $1,000 house balance tagged paper on first sign-in so the whole product is usable end to end. a paper chip shows in the wallet pill and status bar while it exists. paper credit is not withdrawable: withdrawable = balance − paper.

network

robinhood chain

arbitrum orbit l2, gas in eth

chain id

4663 (0x1237)

rpc

rpc.mainnet.chain.robinhood.com

explorer

blockscout ↗

usdg

0x5fc5…d168

global dollar, 6 decimals

multicall3

0xcA11…CA11

stock prices

chainlink aggregatorv3

8 decimals, usd per token, read every 15s

token prices

dexscreener

trending set from geckoterminal, refreshed every 60s

stock feeds hold their last print over weekends. the app marks a quote live under 30 minutes old, held after that, and stale past three days. stale and held assets are shown but cannot be used in shots.

these figures are read from this deployment's configuration at render time, so the table above is the schedule that applies right now.