token-2022 · robinhood chain · fees claimed by contract

upcurve

Upcurve · $upcurve

a floor that only ever ratchets up.

every trade pays a fee, and the fee never reaches a wallet. a contract takes it at the moment it accrues and splits it in two — half becomes a standing bid under the market that burns whatever it fills, half lands in a reserve any holder can draw against, pro rata. nobody gets paid. the token does.

What the reserve owes youyour slice of the reserve
h
in your wallet
÷
S
in circulation
×
R
sitting in reserve
=
claim
yours to take
— via MetaMask. Once connected, this reads your balance against the reserve.
simulated · buys, burns, floorlive simulation
floor (R ÷ S) buy-dominant sell-dominant

a simulated curve of buys and burns. the upper trace is the reserve leg of the fee take divided by circulating supply, accumulated bar by bar across traded volume — it never steps down, because nothing in the arrangement takes from the numerator. below it, flow splits by direction: buy-dominant bars above the baseline, sell-dominant beneath. this is an illustration of the mechanics; figures only the contract can report stay in a loading state until it is live.

premise

Creator fees on a bonding curve are ordinarily a private revenue line. Here they are intercepted at the point of accrual by a contract and never arrive at a wallet. Each claim divides on a ratio fixed at deployment — 50.00% into a bid that buys the token back and destroys it, 50.00% into a reserve that collateralizes redemption — and both halves are spent on the token rather than on anybody.

What falls out of that arrangement is a floor: reserve balance over circulating supply, denominated in ETH. It is arithmetic over two onchain balances, which means anyone can recompute it at any block without trusting a dashboard, this one included.

the split

Trading generates creator revenue in ETH. The contract claims it and routes it, inside the same transaction, into two accounts. Neither leg pays a person, and the ratio is not a dial anyone turns afterwards.

Allocation of a claim c
  bid_leg     = c · 0.50
  reserve_leg = c · 0.50

  R  ← R + reserve_leg
  B  ← B + bid_leg
R = redemption reserve · B = undeployed bid allocation. The bid leg is held until the market satisfies the condition below; it is not spent on arrival.

Tokens issued against the curve land in every wallet in proportion to what that wallet already holds. The consequence is worth stating precisely, because it is the part most easily oversold: scaling every balance by the same factor leaves every share of supply exactly where it was, and therefore leaves every claim exactly where it was. Issuance distributes. It does not manufacture backing. Backing arrives through the reserve leg and improves through retirement.

the floor

Hold h tokens against a supply of S and you own h/S of a reserve holding R. Redemption pays out that fraction in ETH and destroys the tokens presented for it.

Floor
floor = R / S

claim(h) = (h / S) · R
R = reserve wei · S = circulating supply · h = tokens held. Quoted in ETH throughout, never in dollars.

exiting takes nothing

The usual complaint about a redeemable claim is that whoever leaves first leaves carrying something that belonged to everyone. Not here. Burning k pays k·R/S and removes k from supply, shrinking numerator and denominator by an identical factor. The quotient does not move.

Floor-neutrality of redemption
redeem k:

  R' = R − kR/S
  S' = S − k

  R'/S' = (R − kR/S) / (S − k)
        = R(S − k)/S / (S − k)
        = R/S
Invariant under redemption. Nobody is paid out of anybody else's claim.

Withholding part of the payout turns invariance into growth. At f = 3.00%, the redeemer leaves with (1−f)·k·R/S and the difference stays behind in an account now divided among fewer tokens. Everyone who stays is strictly better off for someone else having gone.

Floor-increase with exit fee f
redeem k, withhold f:

  R' = R − (1−f)·kR/S
  S' = S − k

  R'/S' = (R/S) · (1 + f·k/(S − k))

  1 + f·k/(S − k) > 1     for 0 < f ≤ 1, 0 < k < S
The multiplier exceeds one for any non-zero fee, so the floor is non-decreasing under redemption.

the bid gate

The bid leg puts reserve-adjacent capital into the open market, which cuts both ways. Retiring ΔR/P tokens for ΔR of ETH moves the floor in a direction determined solely by where the fill price sits relative to the floor itself.

Buyback condition
spend ΔR at price P, burn ΔR/P tokens:

  floor' = (R − ΔR) / (S − ΔR/P)

  floor' > floor   ⟺   P < R/S

with u = ΔR/R and m = floor/P:

  floor'/floor = (1 − u) / (1 − u·m)
Accretive strictly below the floor, neutral at it, dilutive above. Buying above the floor pays more per token than the token is backed by — which is where most buyback programmes quietly leak.

Most buyback programmes never state that condition, which is exactly why they leak. Encoded as a precondition the contract verifies rather than a judgement somebody exercises, it turns the allocation into a standing bid underneath the market: below the backing the contract is a buyer and every fill tightens supply for everyone still holding; above it the contract does nothing at all and the allocation waits. An idle bid balance is the expected state, not a fault.

the ledger, live

Backing

Held in reserve
What redemption draws against
ETH
Per token
R ÷ S — the floor
ETH
In circulation
upcurve
Taken out of supply
Filled by the bid, plus tokens handed back for redemption
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Issued against the curve
Distributed by holding; every share of supply left unchanged
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Withheld on exit
Stays behind, divided among the tokens that remain
3.00%

Fee take

Intercepted so far
ETH
Set aside for the bid
50.00% of everything taken
ETH
Put to work
Fills the gate allowed through
ETH
Still waiting
Held back until price drops under the backing
ETH