Rulebook

Every series runs on these rules. They are written into the series when it opens and cannot change afterwards.

Rule text

series: SOL/USD, 24 hours from T0 to T1 (T1 = T0 + 86400 s). Quote asset USDC.
P0: The verified Pyth price at T0 fixes the series. T0 is the publish time of the signed Pyth message used to open it.
walls: P0 minus 5% and P0 plus 5%.
P1: The verified Pyth price from the earliest signed message published at or after T1, at most 30 s after it. A message for exactly T1 settles at once; otherwise P1 is provisional and anyone may replace it with an earlier-timestamped message until 1 hour after T1, when the earliest one becomes final.
Outside wins: abs(P1 - P0) * 10000 >= P0 * 500 is Outside; exactly 5% is Outside.
Inside wins: Every other P1: strictly between the walls.
only expiry counts: A price that crosses a wall during the series and comes back before T1 settles Inside. Nothing between T0 and T1 decides the outcome.
pairs: One Outside and one Inside are minted together against 1 USDC held in the series collateral vault. Merging a pair before settlement returns the 1 USDC.
payout: Once the result is final each winning contract pays 1 USDC from the collateral vault; losing contracts pay 0.
VOID: No signed message within 30 s after T1: when the 1 hour window closes the series is VOID and every Outside and every Inside pays 0.5 USDC. A VOID payout is fixed in advance; it is not a refund of the price paid.
trading: Funded quotes only: an ask locks the contracts it sells, a bid escrows its USDC. Fills, mints and new quotes stop at T1; merges and cancels stay open until settlement, cancels after it too.
fees: 0.5% of the USDC a taker pays or receives in a fill; makers pay 0. Minting, merging and claiming pay network fees only. Active stakers pay 10% less taker fee.
fee split: Net fees are split 40% to stakers, 20% to the Burn Trace budget, 40% to operations by a public instruction anyone can call. 28% of net token creator fees also buys and burns $FLURR, kept as a separate book.
fixed rules: Threshold, VOID payout, feed, receiver program, T0 and T1 are written into the series when it opens and hashed into its rule hash. No instruction can change them afterwards, and no instruction can change a final P1 or result.

Parameters

rule version 2

threshold: 500 bps
series length: 86400 s
max publish delay: 30 s after T
max confidence: 25 bps of price
P1 challenge window: 3600 s after T1, earliest wins
pair collateral: 1 USDC
VOID payout: 0.5 USDC per contract
taker fee: 50 bps
maker fee: 0 bps
staker rebate: 1000 bps of the fee

Price evidence

feed: Crypto.SOL/USD 0xef0d8b6fda2ceba41da15d4095d1da392a0d2f8ed0c6c7bc0f4cfac8c280b56d
receiver program: rec5EKMGg6MxZYaMdyBfgwp4d5rB9T1VQH5pJv5LtFJSolscan
eligible message: open: prev_publish_time < T0 <= publish_time. settle: T1 <= publish_time <= T1 + 30 and prev_publish_time < publish_time. Both: verification level Full, conf * 10000 <= price * 25
settlement steps: Signed Pyth SOL/USD messages that Pyth's sponsored publishers post on Solana, rebuilt from transaction history (no API key)
The first eligible message sets a provisional P1; a message for exactly T1 settles at once
Until T1 + 3600 s anyone may submit an earlier-timestamped message, which replaces P1; a later one is refused

Rule hash per series

stored on chain vs recomputed from the stored fields

Series	T1 (UTC)	rule_hash	Check	Open tx
#8	Nov 13 07:08:47	fd6672bb772a30d8d6252631594c508b41596edcc8716941d987c4cd39ce77e4	matches	Solscan
#7	Nov 12 07:08:46	c9f77f9c483f094e8a4e22bbb0c445f780b26480d73465162017dce8286b680c	matches	Solscan
#6	Nov 11 07:08:03	0fdfb86120a74f6599f8a474df6a1ae7c888069252fb23b983dc6be852e2f4aa	matches	Solscan
#5	Nov 10 07:08:12	a7314acfa3a609e0444c420aad3a60d440002c083544d4572c142fedf3f24315	matches	Solscan
#4	Nov 09 07:08:09	577f988d8277a618d15e749446b7f3f0221725dd677b35c183bac1299363962d	matches	Solscan
#3	Nov 08 07:08:02	fda1aeadbbf3639a07ca398954c8128899970c9ade1d0edb62762b7e7a7af070

Guide

1. Read the bandThe series board shows P0, the two walls, the live Pyth price and the time left.Series board
2. Pick a sideBuy Outside if you expect SOL to end beyond a wall, Inside if you expect it between them. The ticket shows what you pay, what it pays if right and the most you can lose.Open the ticket
3. Or mint a pair1 USDC mints one Outside and one Inside. Sell the side you do not want, or post quotes on both.Pairs
4. ClaimOnce the result is final each winning contract pays 1 USDC; VOID pays 0.50 each. Claims never close.Positions
5. Check the recordEvery settlement, claim, fee split, buyback and burn carries its Solscan transaction.Receipts
6. StakeStaked $FLURR earns the stakers' share of fees in USDC and lowers your own taker fee.Earn

Risks: a contract can lose its whole price; the outcome depends only on the Pyth price at expiry; Pyth governs the receiver program each series pins. Every trade asks your wallet to sign one transaction and pays the network fee.

Reading the rules.