Divers in the water
A galleon went down with thirty kinds of doubloon. Fees buy real graded coins and seal them in chests below deck. Your air is the clock.
01 · The vault
Creator fees fill a public vault. Each time it crosses the next price, we buy a graded silver coin from a dealer, photograph the cert, and seal it in a chest in the wreck. Pry it open and it ships to you with tracking. The finale chest holds gold.
02 · The dive
03 · The set
Copper, silver, pieces of eight, gold escudos, and two royal doubloons that only turn up deep in the hull. Bank all thirty and the vault owes you a silver coin.
04 · Golden air
Every fee claim becomes golden tanks. Half float in the wreck for whoever gets there first. The other half go straight into holders' racks, weighted by the square root of the bag and capped per wallet, so a whale can't take every tank.
The pry
One golden tank is one pry, and it refills your air. Release in the sweet spot for a clean pry and a better chance. The lock gives a little more after every miss, up to thirty percent.
05 · Proof
When a chest appears we publish a hash of a secret seed. Pry number i opens it if HMAC(seed, chest:i) lands under its odds. When it opens, the seed is revealed and your browser replays every pry. The coin's grader cert, the dealer receipt and the shipping tracking go up next to it.
sha256: —1.5% → +0.05% per miss → cap 30% · clean pry +1%waiting for golden prys…press replay: your browser recomputes every prygrader cert lookup · dealer receipt · tracking numberWarm-up dives: coins banked here don't count toward the set. Your spot is saved on this browser.
Every pry replays in the proof section. Winners' coins ship with tracking on the vault page.
WASD swim · drag to look · Space/C up/down · Shift kick (burns air) · hold E at a chest to pry
This coin is real. Take its vault value in GLDx, tokenized gold, straight to the wallet that pried it. Or have the graded coin itself shipped to you, insured and tracked.