Green Hole

Onchain Gravity
Live on Robinhood Chain Testnet

An artwork with real gravity.

Minting adds ETH to the shared prize. Burning an NFT makes you the latest burner. If nobody mints or burns for 24 hours, the latest burner can claim what remains.

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How It Works

Mint. Burn. Be the last.

Mint an onchain NFT to add ETH to the Mass. You can keep it, transfer it, or burn it. Burning makes you the latest burner. After the first burn, 24 hours with no mint or burn lets the latest burner claim the ETH that remains.

Starts at 0.0026 ETH

Mint an NFT

Mint 1 to 25 available NFTs in one transaction. The first public NFT costs 0.0026 ETH. Each public mint raises the next price by 0.00026 ETH. Your exact total is shown before you confirm. Of each payment, 95% enters the Mass and 5% goes to the developer.

Burn NFTs #11 and up

Burn to Take the Lead

Burn 1 to 25 NFTs you own in one transaction. Burned NFTs are gone forever. Each burn lowers the next mint price by 0.00026 ETH and makes your wallet the latest burner.

24 quiet hours

Last Burner Can Claim

The game can end only after somebody burns a regular NFT. Every mint or burn restarts the 24-hour clock. If the clock reaches zero, the latest burner can claim the ETH left in the Mass.

The First 10 Are Reserved

NFTs #1–10 go to the developer wallet at launch. They cannot be burned and do not change the public mint price. The owner of each can claim 1% of the current Mass once. The developer earns 5% from every paid mint and can withdraw those accrued fees. The latest burner receives whatever ETH remains when the game ends.