Scrypt · The shop
What Scrypt sells.
Five things are on sale today. All are digital (ePub) and delivered by email. Checkout is on our shop at shop.satoshiscrypt.com. Sold by Scrypt LLC.
Satoshi's Study — Monthly
$9.99 a month
Two Satoshi's Study editions a month, drawn blind and never repeated, plus that month's Hall of Doors volume. ePub, delivered by email. Cancel any time before your next renewal.
Satoshi's Study — Monthly — buy on the shop →The Founding Pass
$99 a year
A year inside Scrypt: every Satoshi's Study edition and every Hall of Doors volume for the year, first shot at the puzzles outside the prize Sprints, the original fiction first, and your name in the founding edition. One price, no tiers. Renews yearly; cancel any time before renewal.
The Founding Pass — buy on the shop →The Hall of Doors · Volume I · Doors I–XXV
$5.99
Hall One of the Scrypt Oracle: twenty-five doors from July 2026, each hiding a single word, set as posted with a solving page facing each one and the keys at the back. ePub.
The Hall of Doors · Volume I · Doors I–XXV — buy on the shop →The Hall of Doors · Volume II · Doors XXVI–L
$5.99
Hall Two: twenty-five doors from August 2026. One door was lost, and its word is still behind it. Solving pages facing, keys at the back. ePub.
The Hall of Doors · Volume II · Doors XXVI–L — buy on the shop →The Hall of Doors · Volume III · Doors LI–LXXV
$5.99
Hall Three: twenty-five doors from September 2026, ending on the seventy-fifth. Solving pages facing, keys at the back. ePub.
The Hall of Doors · Volume III · Doors LI–LXXV — buy on the shop →
New editions and objects appear as they are ready. For the books, start with what Satoshi’s Study is. Everything in the store: all products.
Scrypt
Welcome to the Almachian Moment and an Economy of Clever.
Scrypt is a house of ciphers and fiction. We publish cipher puzzles and connected fiction, and sell the books and objects that grow out of them. Run by Scrypt LLC.
- The Oracle
A cipher door opens nightly. Solving one is free and earns a forty-eight hour head start in the Sprint. - The Sprint
A monthly cipher race with a fixed cash purse. Free to enter, 18+, anywhere in the world. Run by Scrypt LLC. - The Making of Madrigal
A serialized audio course. A new lesson every Friday at noon Eastern, on Spotify, Apple Podcasts and Amazon Music. - Satoshi’s Study
Digital editions of old and hard texts, set with the original facing the English and hand-written notes in the margin. - The shop
The Study membership, the Founding Pass and the Hall of Doors volumes, each with its price. - About and FAQ
Who is behind it, how the Sprint is judged, and how to reach us.
Not the Scrypt key-derivation algorithm and not cryptocurrency mining. No relation.