A CARD THAT CAN'T GO TO ZERO
A graded card is worth the card plus whatever the grade adds. A slab is worth the Stock Tokens sealed inside it plus whatever the grade adds — and those are always there, always redeemable. Collect it, trade it, or crack it open and take the tokens.
FOUR STEPS, TWO SIGNATURES
Buy a cert with USDG on any desk — one transaction swaps into the Stock Token and wraps it. Crack the cert and the raw Stock Tokens land in your wallet. Or bring your own.
Pool depth, 30-day realised volatility, turnover and vault backing are measured at that moment and weighted into one score. You are not choosing the number and neither are we.
The Stock Tokens lock inside the slab and the grade is written into contract storage with a serial nobody else has. Nothing can revise it afterwards — not the operator, not you.
Transfer it like any NFT — it is a plain ERC-721 on Robinhood Chain — or crack it and take the Stock Tokens back. Every slab has a floor: whatever it holds is redeemable at any time, so it can fall to the value of the tokens inside but not through it.
MINT ONE NOW
46 series are open. Pick a ticker, and if you already hold the Stock Token the slab is struck in two transactions — one to approve, one to seal. The serial is the next number in that series and yours forever.
Slabs are ordinary ERC-721 tokens, so they trade anywhere NFTs trade. Royalties are declared on chain via ERC-2981 and marketplaces honour them automatically.
The grade is measured when you strike and written into the token permanently. You are not choosing it, and neither is STOCKCERT — the contract only accepts a grade carrying a signature from the grader key.
WHAT YOU CAN STRIKE
Shares locked is what the contract actually holds against the slabs outstanding. It can never fall below what those slabs owe — the contract reverts rather than let it.
THE FLOOR IS THE POINT
Most collectibles are worth what the next person will pay. A slab is worth that plus the Stock Tokens sealed inside it, and those are not a promise — the contract holds them, anyone can read the balance, and cracking is never gated. It stays open even if the contract is paused, because a wrapper you cannot leave is a trap.
Tokenized equities moved onto formal footing in 2026: the SEC approved tokenized trading rules for Nasdaq and NYSE and published an innovation exemption covering 24/7 fractional trading. Stock Tokens are issued on that crypto-native rail, which is what makes a wrapper like this possible at all.
That same exemption defines the limits. A Stock Token gives economic exposure to a listed security - it is not ownership of a share, and carries no voting or shareholder rights. STOCKCERT issues no equity and custodies nothing; a slab wraps a Stock Token and grades it, and cracking one returns that token. The contracts are unaudited and grades move with the market, so a slab struck today records today's conditions — permanently, which is exactly what makes an early serial worth something.