// trust math, not us
Provable Prophecy.
⏳ next seal in 08:39:05 (pre-open ET)
Before the market opens, every forecast is hashed into a Merkle leaf. The day's leaves commit to one signed root, and every day is hash-chained to the day before it. Edit a call after the fact, backdate one, quietly delete a bad day — the root changes, the chain snaps, and anyone with SHA-256 catches us. Cherry-picking isn't against our policy. It's against arithmetic.
DAYS SEALED
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each chained to the last
CALLS UNDER SEAL
—
frozen before the open
CHAIN STATUS
—
every link verifies ✓
LATEST SEAL
—
UTC trade date
🧪 The Tamper Lab — try to cheat. live.
A real sealed call, a real SHA-256 running in your browser on every keystroke. Break it yourself.
pulling a real sealed call from the archive…
The commit-reveal loop
1 · SEAL (pre-open)
every forecast → SHA-256 leaf → one Merkle root, signed and timestamped
2 · CHAIN
today's root is hashed with yesterday's chain hash — history becomes append-only
3 · GRADE (later)
calls resolve against real prices; results publish next to the untouchable originals
4 · VERIFY (you)
recompute any leaf, climb the tree, check the chain — no trust required
⛓️ The chain, block by block
reading the ledger…