martori studio · brand playbook
a free-to-play prediction game on real events

ledger

call the game. keep the record. the AI is graded too.

version 7october 14, 2026ledger-app.ioexperiences line18+ · free to play · no real money
01

what ledger is

Ledger is a free-to-play prediction game. You make calls on real games with a free virtual currency, and the only score that lasts is your record of what you got right.

It is for adults who love the read, not the risk: people who argue picks with friends, follow the line, and want something to prove with nothing to lose. It runs in the browser on any device, and a first call takes no signup.

no deposits, no cash-out, no prizes. a result is enough.

The Board is the heart of it. The same Float also plays the Exchange, where a read on crypto and stocks meets real quotes, and an Arcade kept behind a gate, where chance is named as chance. Neither room writes Standing. Only a real result the server has graded does.

Ledger is not the wallet. It shares a name with a hardware wallet brand and nothing else.


02

where it sits in the studio

Ledger is on the studio’s experiences line, and it carries the hardest version of the first law in the portfolio.

the line
Experiences. Ledger is built around a person and the habits it leaves them with, not around time spent.
the first law
The law Ledger is held to: no mechanic chases a loss. Fake currency does not make a chase mechanic safe, because the reflex it teaches is real.
the wedge
The only book in its category where the AI’s own calls sit on the same public record as everyone else’s.

03

how it works

One loop: open the board, make a call, let a real result settle it, keep the record.

the board
Tonight’s real games and their lines. Tap a market to load the slip.
a call
Your pick, placed with Float. One call is enough to start.
Float
Free virtual currency with no cash value. It refills every day, 500 as a base and more with each level, up to 1,500 a day. The Dividend adds free Float every week. No money buys it, and it can never become money.
Standing
Your permanent record. Only a call the server has graded against the real result writes it, and it is never taken away. Calls the server did not witness, parlays, Pick 6 and the Showdown pay Float only, and say so.
the server ledger
Signed in, your Float and Standing are the sum of an append-only ledger on the server, not a number your browser reports. Caps fall on profit, never on what you put in, and when the server refuses a credit the screen says why.
how a call is judged
By official results. Ledger never invents an outcome. A void returns the Float to both sides.
Scout
An AI model from Anthropic, and it says so. Scout explains a line in plain words and never names a side or a size. Its one unprompted call is the Call of the Day, chosen by fixed rules, published before the event and graded in public, losses included.
when it is not fun
If anything typed to Scout, on the Exchange or in Board search reads as crisis or gambling distress, a fixed reply with 988 or 1-800-GAMBLER answers first, before any model, limit or route.
guest play
Play right away with no account, with progress kept on your device. An account asks for no email: a display name and a recovery code. Standing built as a guest comes over once, up to 2,500, and is marked unverified wherever it shows.

the rooms

the Board
Live, Tonight, Futures, On Air and the Short Game, all one room. Calls on real games and real events, graded by what happened.
the Exchange
Crypto and stocks at real quotes, in Float. Simple fills at the quoted price with no fee and no spread. Advanced fills against a book, live for coins and simulated for stocks, crosses the spread and pays 0.10% in Float. Stocks fill only in market hours. A risk meter states the share of Float at risk and never advises. Standing never moves here.
the Arcade
Behind a gate, and Scout never sends you there. Decision rooms: the Pit, the Backroom, the Blotter and the Morning Line. Chance rooms: the Card Room, the Wheel, the Ascent and the Reels, each opening on one sentence, this is luck, not a read. The Backroom takes three buy-ins a day, every one counted.
the rest of the house
Circles for friends, a scoreboard and never a pot. The Vault, with printed odds and nothing that pays out. The Showdown, the Case and the Reckoning, a weekly recap sealed into the record.

04

the contract

The missing money is the whole premise. These rules hold on every surface.

  1. virtual currency only, always. no deposits, no cash-out, no prizes of monetary value. no mechanic may open a path back to a dollar.
  2. only a real result writes Standing. settlement follows official results, never a simulated outcome.
  3. the AI is graded too. Scout’s calls are public and scored. graded, not gospel.
  4. explain, never push. Scout says what a line means, not what to play, how much, or how often. its own daily call is explained and pointed at its record, never talked up, and a streak is never cheered.
  5. help answers first. a crisis or distress message gets 988 or 1-800-GAMBLER before any model, spending ceiling or route, and a help page never reports a visitor to an ad network.
  6. chance is named as chance. no chance room is featured, no best return sits on a chance door, and no brake can be walked around.
  7. every claim is backed by code that ships. when the code and a public line disagree, the line changes or the code does, the same week.
  8. for adults. 18 and older, and the line to 1-800-GAMBLER is one tap away for anyone it has stopped being fun for.

05

voice

Direct, dark-first, never shaming. Short declaratives: Float refills every week. Standing is the record.

Headlines are sentence case. Float and Standing are always capitalized, and each is defined the first time it appears: Float is free virtual currency, Standing is your record.

words we use

callboardslipsettlerecordStandingFloatthe read

words we do not

lockthe value playcan't losefree moneyboostsure thingcash incash outride the streakpractice for real money

No line may imply winnings. Scout never talks like a tout: no lean, no warm sell, no hot hand. A promise about tomorrow needs code that keeps it today, so say what is true now. Studio rules apply everywhere: no em dashes, no exclamation points, no wellness language.


06

visual system

Near-black grounds and two currencies with two colors that never merge: gold for Float, mint for Standing.

evening#0A0B0Dground
evening 2#0E0F11raised ground
evening 3#141619cards and the slip
dawn#EEF0EAtext
fern#4E9E76product signal
mint#5FD39AStanding
gold#D9A441Float
clay#B6502Estudio signature
muted#9A9EA3secondary text
dim#565B62rules
Call the game. Keep the record.
400 regular500600700800 display

One face: Hanken Grotesk, 400 to 800, with 400 italic for quoted lines. Odds and records use tabular figures so columns align on the board.

chance rooms

Art on a chance room never sells the win: no coin stacks, gift boxes, confetti or a row of sevens. The Wheel’s door is the engraved wheel. Profit and loss belong in neutral ink, not flashing red and green; the Exchange does not meet that yet, and the open file says so.


07

the exit

A result is enough. Ledger is built so a person can walk away with their record and nothing owed.

There is nothing to cash out because there was never anything to lose. The measure of Ledger working is a person who makes sharper calls and keeps a record they are proud of. Time on the board is not the goal.

Leaving takes everything with it. Deleting an account removes its ledger rows and its Blind reads along with the account, and the export carries every place the account’s data lives, or names the place it could not read.


08

the open file

Where the product does not yet keep this book’s promises. Read from the October 12 assessment and checked against the code on October 14; anything since fixed has left the list.

severitywhat is openthe promise it touches
highScout’s safety eval has never run against a real model. The crisis-first fixes are merged and pinned by local checks, but their behavior in production has not been confirmed.help answers first
highAdvanced on the Exchange rehearses a real exchange: coin pairs written like BTC-USD, exchange order types, keyboard order sending and a 100% size button. Only what was broken has been fixed; what to keep is an open decision.not practice for real money
mediumPublic copy still says Gauntlet and Duels write Standing, in llms.txt, the rooms guide, the desk canon, two more pages and the app’s own room line. Since October 12 the Showdown pays Float only for a signed-in player.every claim is backed by code
mediumThe Arcade still reads as a casino: photoreal chips and felt, “Betting open”, “Bet, then hit or stand” and a gold “Let me in”. Odds and payouts are unchanged.chance is named as chance
mediumAn open pick’s button reads “Cash” and its note says “half cashed”. Only the badge was renamed to close early.no path back to a dollar, in words too
mediumThe Exchange’s first trade ends on “Watch the live P/L,” a large figure that flashes green or red on every tick.neutral ink on profit and loss
mediumA public profile shows a hit rate after five graded calls, below the floor of ten the deep dive set, from picks the player’s app saved. The copy now says where the numbers come from.the record means something
lowScout’s record cannot yet tell skill from luck: a Brier score of 0.252 over 58 decided calls on October 12, where always saying even scores 0.25. Eight of the ten daily calls from October 2 to 11 were club soccer abroad; which leagues it draws from waits on a decision.the AI is graded too
lowMost pages load a Google Ads tag for Ledger’s own advertising. It is disclosed and kept off the help pages; whether paid advertising and remarketing run is unanswered.no ads in the product
lowForty older images have no recorded source: 13 heroes, 21 share images and 6 icons.claim discipline
lowA first session meets 74 named things, 26 before the first call. On a slow phone the age gate ignores taps for about two seconds and says nothing.one call is enough to start

closed since october 12

A crisis message no longer meets a spending ceiling, a busy reply or the Exchange explainer, and a reply in a risk conversation that never names 988 gets a fixed line that does. Every Backroom buy-in counts again. The support page loads no ad tag and reports nothing to Google, and the app’s own events stay on the device. Closing an Exchange position no longer erases Float, Standing comes only from server grades, and new accounts open at the starting purse. Deletion and export cover everything. The Exchange draws no invented candles, fills no stock after hours and shows no exit that does not fire. Fifteen public claims now match the code. Chance doors show no best return, a chance room is never featured, and the luck line is back. Invites land where they point after the age gate.

held, by decision

No page claims where Ledger is legal until counsel has read it. Membership checkout is not live, and no one can pay money anywhere in the product.


09

version history

v7october 14, 2026the server keeps the record. rebuilt from the repo after the october 12 assessment. signed-in Float and Standing now live on a server ledger, and Standing comes only from server grades. Float refills daily, with the Dividend weekly. the rooms are written down: the Exchange with Simple and Advanced and their real costs, the Arcade split into decision and chance rooms. Scout is named as an AI, its daily call is explained, not sold, and crisis replies come first. the contract gains three rules. the open file lists what is still false or unsafe, by severity.
v6october 3, 2026lead with play. rebuilt from the live deploy. the hero leads with the call, not with what ledger is not. stake becomes Float, refilled weekly. 18+ and state availability move onto the page. Scout’s public record is live.
v5.0august 19, 2026graded too. rebuilt from the live deploy. Scout’s calls go on the public record.
v4.1july 25, 2026studio canon. aligned to the studio typeface, accent and copy rules.