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Overview

elhashcash turns Elysium launch coins into token-backed NFTs. Each NFT holds a fixed amount of one coin, locked in an on-chain vault. You can:

• Buy an NFT with HYPE: the app buys exactly the tokens it needs and mints it, in one transaction.
• Lock tokens you already hold into NFTs.
• Earn HYPE: a share of the coin's creator fees goes to the NFT holders. The coin's creator sets it, up to 75%.
• Swap back at any time: burn the NFT and receive exactly its tokens, plus unclaimed fees.
• Launch a new Elysium launch coin together with its NFT collection, or back an existing coin.

Concept

Meme coins trade fast and are easy to forget. Most NFTs are collectibles with nothing behind them. elhashcash combines them: an NFT you can collect, trade and show off, with a real amount of a coin sealed inside.

Three ideas

• Backed, not promised. The tokens behind every NFT sit in a vault controlled only by the contract's rules, not by a person. The vault always holds at least what every NFT is owed, and anyone can verify that on-chain.
• One amount per collection. A collection sets how many tokens one NFT holds, and that number can never change. Every NFT in it is equal, so pricing and fee sharing are simple and fair.
• Holders share the upside. Coins launched on elhashcash send part of their Elysium launch creator fees to the NFT holders. The creator decides how much, up to 75%, and every collection shows its holders' share.

How it works

Buy with HYPE

Pick a collection, choose how many NFTs, and the app shows a live price that refreshes on its own. When you buy, a single transaction:

1. buys exactly the needed number of tokens on the coin's Elysium launch bonding curve,
2. moves them into the vault, and
3. mints your NFT(s).

Elysium transactions are all-or-nothing: if any step fails, nothing happens and nothing is charged. You set how much price change you accept (1–10%). If the price moves more than that, the buy is refused.

Use my tokens

Already hold the coin? Each NFT locks exactly the collection's amount from your wallet. The app shows how many NFTs your balance covers.

Hold and earn

If the coin shares its creator fees with the collection, your NFT earns from the moment it is minted. See Fee rewards.

Swap back

“Swap back” burns the NFT and, in the same step, sends you exactly its tokens plus any fee rewards it hasn't claimed. Swapping back can never be paused. If the NFT is listed on a marketplace that froze it, delist it first.

Selling the NFT

NFTs are standard ERC-721 tokens, so you can transfer or sell them like any NFT. The right to swap back, and any unclaimed fee rewards, move with the NFT to the new owner.

Fee rewards

Elysium launch pays a coin's creator a fee on every trade of that coin, and lets the creator split that fee between several wallets. On elhashcash the split has up to three parts:

• NFT holders: the creator's choice, up to 75%. This goes to the collection's rewards pool, an on-chain contract owned by the elhashcash contracts, and is split equally between all NFTs.
• The creator: the rest of the 75%. If the creator gives holders 50%, they keep 25%. If they give holders 75%, they keep nothing directly and earn through their own NFTs and tokens.
• elhashcash: 25%, always. It funds development, audits and infrastructure.

The creator sets the holders' share once, during launch. Every collection page and card shows it, for example 50% of fees to holders.

How your share is counted

When new fees reach the pool, each NFT that exists at that moment is credited the same amount:

your share = new fees ÷ NFTs at that moment

The contract keeps a running “earned per NFT” total, and each NFT remembers where that total stood when it was minted. That gives three guarantees:

• An NFT only earns from fees that arrive after it exists. Minting late can't capture earlier fees.
• The pool can always pay every holder at once. This is checked as an exact accounting rule.
• Rounding never costs you more than 1 wei over an NFT's whole life.

Collect and claim

• Collect new fees for holders. Fees build up on Elysium launch's side first. Pressing this button on the collection page pays them out (75/25) and credits every NFT. Anyone can press it, and it needs no special rights.
• Claim. On “My NFTs”, each NFT shows what it has earned. Claim one, or claim all at once; the HYPE goes to your wallet.
• Swap back also pays out unclaimed rewards automatically.

The math, step by step

Which coins earn

• Coins launched on elhashcash set their split during launch, with the holders' share the creator picked.
• Existing coins earn only if the coin's creator turns fee sharing on and picks a holders' share. Only the creator can do that, so community-made collections usually don't earn.
• The holders' share badge comes from the coin's live Elysium launch split, read on every visit: this collection's pool, 25% to elhashcash, and the creator's part.

Edge cases

• Fees that arrive while a collection has no NFTs are held and go to the next NFTs.
• If an NFT is destroyed outside elhashcash, its unclaimed rewards go back to the other holders.
• The launchpad's own protocol fee is separate and is never shared.

For creators

Launch a coin with its NFTs

The launch wizard takes five short steps (Coin, NFTs, Your buy, Fees, Launch). In the Fees step you set the holders' share with a slider (0–75%) and see the full split before you continue. The launch itself then runs as four transactions you approve one by one:

1. Create the coin on Elysium launch. If you buy at launch, the buy happens in this same transaction.
2. Share creator fees: your chosen share to NFT holders (up to 75%), the rest of the 75% to you, 25% to elhashcash.
3. Create the collection with your fixed tokens-per-NFT amount.
4. Lock your first NFTs from your launch buy.

If anything stops halfway, finished steps stay done and the wizard resumes where it left off.

Your launch buy: NFTs and tokens

You choose how many tokens to buy at launch and how many NFTs to lock from them. The rest stays in your wallet as plain tokens. Example: buy 12,000,000 tokens with 5,000,000 per NFT, lock 2 NFTs, keep 2,000,000 tokens.

Choosing the holders' share

A bigger holders' share makes your NFTs more attractive to collectors; a smaller one keeps more creator fees for you. At 75% you keep no direct creator fee and earn through the NFTs and tokens you hold. At 0% the NFTs are still fully backed but earn nothing. The share is shown on your collection's card and page.

Back an existing coin

Paste the coin's address. The app checks it first: token contract, unsafe token features, whether anyone can freeze it, Elysium launch status, who created it, and existing collections. Coins with dangerous features (transfer taxes, blacklists, pausing and similar) are refused. If you are the coin's creator, you can turn on fee sharing and pick the holders' share in the same flow.

Choosing tokens per NFT

This number can never change, so pick it carefully. A larger amount keeps the fixed per-NFT costs (gas) small relative to the price. A smaller amount keeps NFTs affordable as the coin's price rises. Optional settings: a maximum number of NFTs, and a small HYPE fee per mint (up to 0.1 HYPE, fixed forever).

Reading a collection

fully backed

The vault holds at least as many tokens as all NFTs are owed. If it ever didn't, it would show UNDER-BACKED; the contract is built so that can't happen.

X% of fees to holders

The share of the coin's Elysium launch creator fees that goes to this collection's holders, read live from the coin's fee split. The collection page shows the full split and whether it is locked.

by token creator

Made by the same wallet that launched the coin on Elysium launch.

community

Made by someone else. Still fully backed by the same rules, but check it before trusting it.

graduated

The coin left the bonding curve for the Elysium DEX, so buying with HYPE in the app isn't available yet.

Verify the numbers

A button that re-adds every NFT's claim and audits the rewards pool directly from the chain.

Costs

A first-time buyer also pays small one-off account rents. The app always shows an exact breakdown before you sign, and a hard maximum you will never exceed. Collections may add their own fixed mint fee (up to 0.1 HYPE), which is shown in the price.

Safety & trust

What the contract guarantees

• The vault is owned by the contract. There is no admin withdraw, sweep or “emergency” function. Tokens leave only when an NFT is swapped back, for exactly its amount, to its current owner.
• After every action, the contract checks that the vault holds at least what all NFTs are owed, and that exactly the right amount moved.
• Only the current owner can swap back or claim an NFT's rewards. Fake or copied NFTs are rejected.
• An NFT can't be swapped back twice; it is burned in the same step.
• The tokens per NFT, the mint fee and the fee receiver are fixed when a collection is created and can never be changed.
• The admin can only pause new NFTs. Swapping back is never blocked.
• Every transaction is simulated before your wallet asks you to sign. If the simulation fails, nothing is signed.

What still needs trust (and our plan)

• Audit. The contract has not been audited yet. An independent audit comes before mainnet.
• Upgrades. Contracts can be upgraded unless locked. The upgrade key will sit in a multisig, with the policy published before launch.
• Fee split lock. Elysium launch lets a coin's creator change its fee split unless they give up that right. Locking it at launch is planned; until then the app shows on every collection whether the split is locked.
• Elysium launch steps. The launch calls follow the launchpad's published interface and are being verified on-chain.
• Freeze authority. If a coin's issuer can freeze token accounts, it could freeze the vault. Such coins need an explicit, public acknowledgement from the collection creator, and the collection page warns about it.

Stay safe

• We will never DM you first, ask for your seed phrase, or offer a presale.
• Use only links from this site.

Status & roadmap

1. Build

   Vault contract, fee rewards, launch wizard, web app. Logic stress-tested offline: hundreds of thousands of random actions, with every accounting rule checked after each one.

2. Testing

   Deploy to Elysium, verify every launch step on-chain, public testing.

3. Audit

   Independent security audit, multisig upgrade control, fee split lock at launch.

4. Mainnet

   Launch. The date will be announced here first.

Later: buying with HYPE after a coin graduates to the Elysium DEX.

Risks

• Market risk. An NFT holds a fixed number of tokens, not a fixed value. Meme coin prices can fall sharply, even to near zero.
• No guaranteed income. Fee rewards depend on trading volume and the coin's fee split.
• Software risk. Smart contracts can have bugs. elhashcash is unaudited prelaunch software.
• Third parties. elhashcash depends on Elysium and its launchpad, which can change or fail. elhashcash is not affiliated with Elysium launch.
• Coin issuers. A coin with a freeze authority could block swapping back.
• Regulation. Rules about tokens and NFTs differ by country. Check what applies to you.

Nothing here is financial advice or an offer to sell anything.

Glossary

Vault

The on-chain contract holding all tokens behind a collection's NFTs. Controlled by code, not by a person.

Tokens per NFT

The fixed amount every NFT in a collection holds and swaps back for.

Swap back

Burning an NFT to receive its tokens (and unclaimed rewards).

Creator fee

The share of each Elysium launch trade that Elysium launch pays to a coin's creator.

Rewards pool

The contract that that receives the holders' share of creator fees and pays out claims.

Bonding curve

Elysium launch's pricing curve for new coins. The price rises as tokens are bought.

Graduation

When a coin moves from the bonding curve to the Elysium DEX.

ERC-721

The NFT standard elhashcash NFTs use. Every EVM wallet and marketplace supports it.

FAQ