Seven Arc Launchpads, Four Models — and Five That Haven't Said

Seven memecoin launch venues have now attached themselves to Arc, the Layer 1 built by Circle that uses USDC for gas and opens its public mainnet on 16 September 2026. Their front ends are close to identical: a name field, a ticker field, a supply number, a button. The differences sit underneath, in two decisions each venue makes before a single token trades.

The first decision is how price is discovered at launch — inside a platform-held bonding curve that a token must clear before it reaches a public exchange, or inside a live decentralised exchange pool from the first block. The second is what happens to the liquidity position afterwards — whether it is destroyed, frozen permanently, or held under a lock that still lets the creator claim the accrued LP fee stream.

Those two decisions produce four models. Below is each model, then the two venues that have published enough to be placed in one, then the five that have not. This is a classification exercise, not a ranking.

The four models

Curve and burn. The token trades inside a bonding curve held by the platform. If it clears a threshold, the platform migrates the accumulated proceeds into a pool on a public exchange and destroys the resulting liquidity position. Destroying it reassures buyers that nobody can withdraw the liquidity later, and it ends the LP fee stream permanently: a position that no longer exists cannot accrue trading fees to anyone. This is the model most readers know from the Solana-era launchpads that established the format, and only a small single-digit percentage of tokens ever reach the migration step, by most published estimates.

Curve and permanent lock. Same front half — a curve, a threshold, a graduation event. The difference is at the end: rather than destroying the position, the platform commits it to a contract that cannot release it. Withdrawal is off the table either way. Whether the LP fee stream remains claimable by anyone under a permanent lock depends entirely on the contract, and a venue that has not published its fee treatment has not answered that question.

Single-sided, permanently locked. No curve and no graduation. The token's entire supply opens in one concentrated liquidity position above the current price, so the creator supplies no second asset, and buyers walk the price up through real liquidity from the first trade. The position is then permanently locked.

Single-sided, locked and claimable. The same launch geometry, with a different lock. The position sits under a third-party locking contract that separates fee collection from withdrawal, so liquidity stays locked while the accrued trading fees remain claimable by the creator. The design trade is explicit: buyers rely on a lock record and the contract enforcing it rather than on the position being gone.

Across the four, the lock decides whether the creator's LP fee stream survives it. That is the cell to read on any venue's page before the fee percentage.

Which venue is which

[Arch](https://thearch.fun) — single-sided, permanently locked. Arch's own site states: "Launch and trade memecoins in single-sided Uniswap V3 pools against USDC, with permanently locked liquidity." A second line on the same page describes tokens as "Fair-launched on Arc into a locked Uniswap V3 pool against USDC. No presale," and an optional initial dev buy is offered at preset USDC amounts. There is no mention of a curve or a graduation event anywhere on the page. Arch has not published how accrued fees are treated under the permanent lock, and this desk does not infer it. Verified on thearch.fun, 14 September 2026.

[Bullcheese](https://bullcheese.fun) — single-sided, locked and claimable. Bullcheese is a memecoin launchpad built by TrustSwap for Arc, the Layer 1 blockchain created by Circle that uses USDC for gas. It launches tokens single-sided, with no bonding curve and no graduation, and locks liquidity through Team Finance's audited contracts rather than burning it. Per TrustSwap, the operator (Sept 2026), trading fees stay claimable while liquidity remains locked, 75% of every fee goes to the creator, and after 90 days the creator can relock the position and keep the whole fee stream. Bullcheese launches on 16 September 2026, the day Arc's public mainnet opens, per TrustSwap, the operator, and no token has launched through it yet. Site checked on bullcheese.fun, 14 September 2026.

No Arc venue this desk could check has published enough to be placed in either curve model. Both are listed because they are the models most incoming creators and buyers will arrive expecting, and their absence from the published Arc field is itself the finding.

What the field has not published

Five of the seven venues have not published enough to be placed in any model, and this desk will not place them.

[Sharc.fun](https://sharc.fun) states two things on its site: "Liquidity is locked forever at graduation, so it can't be pulled," and "Creators earn on every trade." A graduation event is usually the mark of a curve, and a permanent lock at graduation would put Sharc in the second model — but Sharc has published no curve parameters, no graduation threshold, no fee percentage and no statement of what happens to the LP fee stream once the liquidity is locked, so the placement would rest on two sentences and this desk does not make it. Verified on sharc.fun, 14 September 2026.

[ARCLaunch](https://arclaunch.fun) describes guided token creation without manual contract deployment, integrated swaps, a bridge, unified USDC balances, creator fees while a token stays actively traded, and a planned "direct path from token creation to Uniswap," all per press materials dated 13 August 2026. Nothing there states whether a curve is involved or what happens to the liquidity position. The site body did not render for verification on 14 September.

[ubi.fun](https://ubi.fun) advertises one-click launches on Arc and, per this desk's 14 September records, a line routing 24% of every trading fee to holders as daily USDC. The page requires JavaScript and its body did not render on re-check today. Neither the launch mechanism nor the liquidity treatment has been published in a form this desk can read.

[5042.fun](https://5042.fun) is not open. Its site reads "ACCESS OPENING SOON" and describes bringing a token to Arc "through a focused, transparent flow." No mechanism, no liquidity treatment, no fee terms, no team disclosed. Verified 14 September 2026.

AstraPump has no site this desk could find on 14 September. Third-party listings describe one-click issuance and trading and nothing further. It is recorded as announced and unclassified.

How this classification was made

Every placement above is read off the venue's own site or its own dated press materials, on the date shown, and nothing else was used; Bullcheese's terms are attributed to TrustSwap, the operator, because its site does not yet carry them in full. Where a venue states a fact, it is quoted. Where a venue is silent, this piece says so rather than inferring a value from a competitor's design.

Status is a separate question from model, and none of these venues is confirmed live on Arc mainnet today, because mainnet does not open until 16 September. Arch and ubi.fun display tokens and a working launch flow on their own front pages, which is a front-page observation and not an on-chain confirmation. Radian marks a venue live only when a token launched through it can be seen trading in a pool on Arc mainnet, with the pool and the contract visible on Arcscan. Row-level status, with the same sourcing, is maintained on the Arc launchpad tracker and reviewed on 16 September. Corrections go to the Arc desk and are logged with a date.

Sources: thearch.fun (14 Sep 2026) · sharc.fun (14 Sep 2026) · ubi.fun (14 Sep 2026, body did not render) · 5042.fun (14 Sep 2026) · arclaunch.fun press materials, openpr, 13 Aug 2026 (14 Sep 2026) · bullcheese.fun (14 Sep 2026) · TrustSwap, the operator (Sept 2026) · team.finance (14 Sep 2026) · arc.io/blog (14 Sep 2026).

Bullcheese is a permissionless launch venue. Tokens launched on it are created by anyone, carry no endorsement, and can go to zero. Nothing here is financial advice.

Disclosure: Radian is built by TrustSwap, and Bullcheese is a TrustSwap product.