
Mintegra mints gemstone NFTs through open CPU + GPU proof-of-work mining on Robinhood Chain. No whitelists. No insider allocations.

Mintegra mints gemstone NFTs through open CPU + GPU proof-of-work mining on Robinhood Chain. No whitelists. No insider allocations.

Your browser solves a Keccak-256 proof-of-work. You commit the winning hash on Robinhood Chain at the current epoch price, the hash reveals your mineral, depth and rarity, and you can stake the NFT to earn dividends.

555 NFTs per epoch. Price starts at 0.0001 ETH and rises 0.0001 each epoch, up to 0.0010 ETH. The next epoch starts the instant the 555th mint lands. 70% of every mint goes to stakers, 30% to the treasury.


Stake your NFT (never ETH) to earn a share of the dividend pool, weighted by rarity. Unstaking returns your NFT and automatically pays your pending dividends. Secondary sales carry a 10% creator royalty (EIP-2981).
A collection of 5,550 gemstone NFTs minted by open proof-of-work mining on Robinhood Chain. No whitelist and no insider allocation.
Mine in your browser (CPU + GPU). When your hash wins, you commit it on-chain at the current epoch price.
Epoch 1 is 0.0001 ETH, rising by 0.0001 each epoch to 0.0010 ETH in epoch 10. Gas is paid in ETH.
Minting is commit-reveal: your mint commits your proof-of-work, and rarity is rolled on-chain at reveal. Odds: Common 55%, Uncommon 25%, Rare 12%, Epic 5%, Legendary 2.5%, Mythic 0.5%.
A mineral specimen plate generated from your winning hash - one of 26 real minerals in 8 crystal habits.
70% of every mint goes to the dividend pool, shared pro-rata by rarity weight among staked NFTs (×1 Common up to ×50 Mythic). 30% goes to the treasury.
No, you stake the NFT itself. Unstaking returns it and auto-pays your pending dividends.

Mintegra mints gemstone NFTs through open CPU + GPU proof-of-work mining on Robinhood Chain. No whitelists. No insider allocations.

Mintegra mints gemstone NFTs through open CPU + GPU proof-of-work mining on Robinhood Chain. No whitelists. No insider allocations.

Your browser solves a Keccak-256 proof-of-work. You commit the winning hash on Robinhood Chain at the current epoch price, the hash reveals your mineral, depth and rarity, and you can stake the NFT to earn dividends.

555 NFTs per epoch. Price starts at 0.0001 ETH and rises 0.0001 each epoch, up to 0.0010 ETH. The next epoch starts the instant the 555th mint lands. 70% of every mint goes to stakers, 30% to the treasury.


Stake your NFT (never ETH) to earn a share of the dividend pool, weighted by rarity. Unstaking returns your NFT and automatically pays your pending dividends. Secondary sales carry a 10% creator royalty (EIP-2981).
A collection of 5,550 gemstone NFTs minted by open proof-of-work mining on Robinhood Chain. No whitelist and no insider allocation.
Mine in your browser (CPU + GPU). When your hash wins, you commit it on-chain at the current epoch price.
Epoch 1 is 0.0001 ETH, rising by 0.0001 each epoch to 0.0010 ETH in epoch 10. Gas is paid in ETH.
Minting is commit-reveal: your mint commits your proof-of-work, and rarity is rolled on-chain at reveal. Odds: Common 55%, Uncommon 25%, Rare 12%, Epic 5%, Legendary 2.5%, Mythic 0.5%.
A mineral specimen plate generated from your winning hash - one of 26 real minerals in 8 crystal habits.
70% of every mint goes to the dividend pool, shared pro-rata by rarity weight among staked NFTs (×1 Common up to ×50 Mythic). 30% goes to the treasury.
No, you stake the NFT itself. Unstaking returns it and auto-pays your pending dividends.