Collection

Every Mintegra NFT is a standard ERC-721 — tradeable on OpenSea the moment it is minted. Each token is a gemstone portrait from deep underground: your winning proof-of-work hash decided how deep the drill went (depth = rarity), which of 26 real minerals it uncovered, its crystal formation, and how the light falls on it.

The Art

Deep Earth Gemstones

Every Mintegra NFT is a cinematic gemstone portrait painted by your winning proof-of-work hash. The hash is the drill log: it decided how deep you mined — and depth is rarity. It chose the mineral, the crystal formation, the palette, the light, even the dust in the air. Deeper finds glow brighter. No two are alike — guaranteed by the hash itself.

Mythicmantle boundary

Legendarynear-mantle vault

Epicabyssal pocket

Raredeep seam

Uncommonshallow vein

Commonsurface deposit

Specimen previews rendered live by the art engine — your mint's art is painted by its own winning hash, so yours will be one of a kind.

Minting is commit-reveal: your mint only commits your proof-of-work. The rarity is rolled afterwards (about 30 seconds later) from the hash of a block that did not exist when you minted, so neither you nor a miner can read it, wait for a good one, or grind for it. Anyone can trigger the reveal, and staking does it automatically. A mint left unrevealed for too long (a few dozen minutes) is finalised as Common. Randomness on-chain is never perfect (the chain's sequencer sees blocks), so treat tier odds as per-mint odds, not a guarantee.

The hash decides everything

How deep you mined

The hash is the drill log. Depth maps directly to rarity — a surface deposit is Common, a mantle-boundary find is Mythic.

Which mineral

One of 26 real minerals — amethyst, emerald, sapphire, ruby, dioptase… each with its true crystal system and Mohs hardness.

The formation

Crystal habit, angle, and facet count all come from the digest — no two crystals grow the same way.

The light

Palette, glow, bokeh, and dust in the air are seeded by the same bytes. Deeper finds glow brighter.

26 real minerals

AmethystEmeraldAquamarineCitrineImperial TopazSapphireRubyOpalWatermelon TourmalineFluoritePyriteAzuriteMalachiteTurquoiseAlmandine GarnetPeridotMorganiteLarimarObsidianMoonstoneSunstoneLabradoriteRhodochrositeBismuthKunziteDioptase

Each mineral carries its real crystal system and Mohs hardness into the token's on-chain traits.

Trade on OpenSeaERC-721

Every mined NFT is a standard ERC-721 — list and sell on OpenSea as soon as it is minted.

Browse collection on OpenSea

Contract: 0x2dcaC0Dafedd49bfe4c14626c07005ae865f36BB

Rarity tiersdeterministic from the PoW hash

Tier	Odds per mint	Where it's found
Common	~55%	surface deposit
Uncommon	~25%	shallow vein
Rare	~12%	deep seam
Epic	~5%	abyssal pocket
Legendary	~2.5%	near-mantle vault
Mythic	~0.5%	mantle boundary

Rarity is scored from a seed the contract rolls at reveal time (your winning digest + the hash of a block after your mint) — it cannot be predicted while mining or minting, and it cannot be changed afterwards.

On-chain traits

RarityMineralCrystal HabitCrystal SystemMohs HardnessDiscovery Depth (m)Epoch

The same digest always produces the same art — on the site, in your wallet, and in marketplaces. Traits are extracted byte-by-byte from the winning hash, so every mint is a unique fingerprint of the work that earned it.

Trading

StandardERC-721

MarketplaceOpenSea

Custodyself-custody

Mine, stake, or trade — your NFTs never leave your own wallet unless you sell them yourself.