raffle/v2 package

Package raffle is the SPLASH weekly ticket raffle.

WHAT THIS REPLACES, AND WHY IT IS A SEPARATE REALM.

r/splash/game is a permanent-deposit yield product: you deposit GNOT, you can never withdraw, your position size IS your ticket count, and winning the weekly draw ADDS the pot to your locked position rather than paying your wallet. Its raffle had to live inside that realm because the draw mutated three pieces of that realm's state atomically (see the long comment at the top of r/splash/game/raffle.gno).

This realm sells TICKETS, not positions. A ticket costs TicketPrice and buys exactly unitsPerTicket units of one week's draw — one ticket was one unit until 2026-09-29, and EntryUnitPrice says why the two numbers had to come apart; the pot pays out to the winner's WALLET; and nothing a buyer paid is held beyond the week they bought into. Because there is no position, no yield index and no permanent deposit, the draw needs nothing from r/splash/game and this realm holds no authority over it, over r/splash/beacon, or over r/gnoland/wugnot.

THERE IS EXACTLY ONE PACKAGE-PATH GUARD IN THIS FILE, AND UNTIL 2026-09-29 THERE WERE NONE. The sentence that used to be here — "there is no package-path guard anywhere in this file and nothing for one to protect" — is no longer true and is not quietly deleted. FundPotWithEntries admits r/splash/arcade/duel and nobody else, because duel play now EARNS entries in the live week's draw (AUDIT-2026-09-28.md finding 15). Read that function in full before touching it: it is the only privileged door in this product, it is the shape r/splash/game declined to add five times, and what keeps it small is that everything it can do is bounded by the money delivered through it in the same call. Every OTHER entry point here is still permissionless and can still only do the one thing the week's state machine allows next.

THE MECHANICS ARE r/splash/game/raffle.gno's, DELIBERATELY UNCHANGED: the week number derived from the global clock, the Commit/Capture/Resolve three-phase cycle, and above all the FROZEN-TOTAL property. Read Commit below before changing anything: freezing the ticket total is what stops a buyer from waiting for the randomness to publish and then buying exactly the winning ticket index, and that attack was live in an earlier version of the old realm.

ONE MECHANIC IS NOT THE OLD REALM'S ANY MORE: WHICH ROUND DECIDES A WEEK. The old realm — and this one until 2026-09-28 — bound Round = beacon.Latest() + 1 inside Commit, which handed the round choice to whoever called Commit, AFTER the week's ticket set was already frozen and public. The publisher's key can sign any round at will and beacon.Publish accepts rounds in any order, so that was a deterministic, risk-free win for the key holder. The round is now PINNED WHEN THE WEEK'S RECORD IS CREATED — before the first ticket of that week exists — and is never written again. See getOrCreateDraw and pinOffsetRounds.

THAT DOES NOT MAKE THE DRAW TRUSTLESS, and nothing in this file should be read as claiming it does. The beacon's key holder still knows every round's randomness in advance, so they can still rig a week by choosing the MODULUS — buying last, just before the week closes, to move FrozenTotal and the unit ranges. Pinning removes the round-selection freedom, which was the cheap, deniable and exact version of the attack; the residual one leaves an on-chain trace as a suspicious late purchase. THE ARCHITECTURAL PROBLEM REMAINS OPEN and is the owner's decision: closing it needs an externally-controlled beacon or a VRF. See AUDIT-2026-09-28.md findings 4 and 10.

THE ARCADE FEEDS THIS POT, AND SINCE 2026-09-29 IT ALSO FILLS THE DRAW. r/splash/arcade/duel sends its rake here, so every coin flip makes this week's prize bigger — that is what makes the duel and the raffle one product instead of two contracts. The rake itself still buys no tickets and no winning chance: it is tracked separately as Draw.Sponsored, because the refund safety property is the identity Pot == sum(spends) + Sponsored and house money belongs to no buyer. Read Draw.Sponsored and FundPot together before changing either.

WHAT CHANGED IS THAT THE PLAYERS WHO PAID THAT RAKE NOW ARRIVE WITH IT. Until 2026-09-29 the money came and the entrants did not, so a week of busy coin flipping and no ticket sales could be won outright by one cheap ticket bought in its final block — the whole pot, to somebody who had contributed none of it. FundPotWithEntries is the fix: the duel delivers the same rake and, in the same call, the two players of each settled duel are credited entries worth EXACTLY what that rake would have bought at EntryUnitPrice. The money and the entrants now arrive together. Earned entries carry ticket weight and NO spendOf record, which is consistent with every identity in this file and is spelled out at FundPotWithEntries. AUDIT-2026-09-28.md finding 15.

WHAT IS NEW, and could not have existed in the old design: Refund. There, the pot was accrued protocol fees and nobody's stake was ever at risk, so an unresolvable draw could simply wait forever. Here the pot is buyers' own money, so a week nobody settles must have a way back out. SINCE THE DRAND MIGRATION THAT IS A LIVENESS EXIT AND NOT A LOSS EXIT — no round is ever unobtainable, so what Refund guards against is nobody bothering to relay one. See Refund.