Every heat grade on this site is computed from live inputs, not assigned. The formula is below, the endpoint returns its own workings, and nothing here is a number you have to take on trust — recompute any grade and check it.
Four measured inputs, fixed weights, one score between 8 and 10. The function is deterministic: the same inputs always produce the same grade.
heat = 8 + 2 × (0.40·liquidity + 0.25·stability + 0.20·turnover + 0.15·backing)
These are this cert's inputs as of this page load, straight from the same engine that grades the slab. Multiply each component by its weight, sum, and scale.
GET /api/grade/NVDA
pool depth $3,112,113
volatility (30d) 45.5% annualised
daily volume $27.08B
backing ratio 1
liquidity 1.0000 × 0.4 = 0.4000
stability 0.4919 × 0.25 = 0.1230
turnover 0.9280 × 0.2 = 0.1856
backing 1.0000 × 0.15 = 0.1500
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weighted 0.8586
heat = 8 + 2 × weighted = 9.7 → MINT · GRAILPool depth and backing are contract reads on ROBINHOOD CHAIN. Volatility and turnover come from 30 trading days of daily closes. Nothing is privileged — you can read all four yourself.
A ticker with no USDG pool has no depth to measure, so it cannot be graded. Those return gradable: false with the reason, rather than a score built on a zero input.
{
"ticker": "COIN",
"gradable": false,
"reason": "No USDG pool for COIN on Robinhood Chain, so liquidity cannot be measured."
}A cert series id is its underlying Stock Token address widened to uint256. This chain is permissionless and impostor ERC-20s carry real tickers, so nothing here resolves a symbol to an address — series are registered by address, from a pinned list checked by hand against Robinhood's own token registry and verified on chain before it ships. 32 of them currently have a Uniswap USDG pool deep enough to trade and grade.
Backing is enforced, not asserted: after every seal, crack and settlement the contract requires the vault's Stock Token balance to cover every cert outstanding, or the transaction reverts.
Grades are computed live and cached for an hour. They are not frozen into a token — a cert's grade moves as its pool depth and volatility move. A slab is the opposite: StonkCertSlab seals the grade into contract storage when it is struck, so it records the conditions of that moment and never updates.
STOCKCERT issues no equity and custodies no shares. A Robinhood Stock Token already gives economic exposure to a real share — not ownership, not voting rights — and is issued and custodied by Robinhood, not by this project; this wraps it, the way WETH wraps ETH. Not affiliated with Robinhood. The contracts are unaudited.