Jackpot Fairness

Provably Fair lets you verify that each jackpot round outcome matches the published seeds. The result number is derived with HMAC-SHA256 from the server seed and public seed, then taken modulo the total pot (in lamports). That number selects the winning bet by cumulative stake order.

import { createHmac } from "crypto";

const serverSeed = "REVEALED_SERVER_SEED";
const publicSeed = "REVEALED_PUBLIC_SEED";
const potAmountLamports = 123456789n; // total pot in base units (exclusive upper bound)

const saltedSeed = createHmac("sha256", serverSeed).update(publicSeed).digest("hex");
const randomValue = BigInt("0x" + saltedSeed);
const resultNumber = randomValue % potAmountLamports;

console.log("Result number:", resultNumber.toString());

// The winning bet is chosen by walking bets in creation order and
// comparing cumulative stake to resultNumber (first interval that contains it).

Recent Rounds

Game / Round

Server Seed

Public Seed

Pot (lamports)

Result #

Welcome to Solpump. Play 100% fair on-chain Solana games like Crash, Coinflip and Futures. SolPump provides instant on-chain Solana deposits and Solana withdrawals. Earn $SOLPUMP by wagering Solana and be sure to claim our free rewards or join in our hourly Solana airdrops.

The user also attests that they are not a resident of or located at: USA, United Kingdom, France, Germany, Spain, Netherlands or any other blacklisted or restricted jurisdiction where gambling may be illegal. It is your responsibility to ensure that the use of the service is lawful in your country.

Games

Features

Rewards

AirDrop

Daily Case

Info

Solpump is owned and operated by 3-102-932956 Ltd located at Calle 37 bis, Los Yoses, Montes, de Oca, San Jose, Costa Rica. Solpump is licensed and regulated by the Tuvalu Gaming Authority under license number GLN - 9301.