How gogacha Works
A provably fair collectible distribution platform where everyone gets a fair shot
1The Basics
gogacha is a premium collectible acquisition platform. Collectors list their rare items (like trading cards, digital collectibles, or physical goods), and you can acquire tickets for a fair-odds distribution.
Think of it as a transparent and mathematically fair way to acquire high-value items. Every ticket has an equal chance of being selected, and the outcome is mathematically guaranteed to be random and verifiable.
2Your Ticket is an Asset (The NFT Stub)
Unlike traditional raffles where you just get a number, on gogacha, every entry mints a unique NFT Ticket. This digital stub is your proof of ownership—you can hold it, trade it, or sell it before the draw.
3Why It's Fair (The Tech, Simplified)
Fair Market Economics
This isn't a casino where the house wins. The total ticket sales are capped near the item's real market value. Sellers don't make excessive profits—they get fair market value (minus fees), similar to selling on eBay. You get a fair shot at a high-value item for $10, and the seller gets a fair sale price.
Verifiable Randomness
We use Chainlink VRF to generate random numbers that are mathematically proven to be fair. Your odds are exactly what they appear to be: if there are 100 tickets and you hold 5, you have a 5% chance. No hidden manipulation and no house edge.
Trustless Transparency
The rules are locked in a smart contract on the Arbitrum blockchain. Every ticket purchase and winner selection is recorded on a public ledger that anyone can audit. The code is law, and the proof is permanent.
4How the Money Works
✦ The platform fee helps us maintain the service, pay for blockchain transaction costs, and keep the platform running. Sellers receive 95% of all ticket sales directly to their wallet.
5Step by Step
Browse
Explore available distributions for collectibles you want
Mint Your Ticket NFT
Purchase an entry for a flat $10 to mint a unique NFT Ticket. This digital stub is your proof of ownership and is fully tradable.
Wait for Draw
Once all tickets are allocated (or time runs out), the event closes. You can hold or trade your ticket until then.
Random Selection
Chainlink VRF generates a provably random number to pick the recipient
Claim Physical Asset
The winning NFT holder claims the physical collectible. We verify ownership and ship the item to you.
?Common Questions
Can the seller or platform rig the selection?
No. The random recipient selection happens through Chainlink VRF, which generates cryptographically secure random numbers. The result is verified on-chain before being used. Nobody can predict or influence it.
What happens if a distribution doesn't sell out?
Events have a set duration. When time runs out, the draw happens with whatever tickets were allocated. If you're the only participant with 10 tickets out of 100 possible, you have a 10/10 (100%) chance of being selected!
How do I know the item is real?
Items are represented as NFTs (digital certificates of ownership). You can verify the NFT's authenticity on the blockchain. For physical items, sellers stake collateral and are responsible for shipping.
Why Arbitrum?
Arbitrum is a "Layer 2" network that runs on top of Ethereum. It's much faster and cheaper than Ethereum directly, while still inheriting its security. This means lower fees for you.
What's USDC?
USDC is a "stablecoin" - a cryptocurrency that's always worth $1 USD. Using USDC means the ticket prices stay stable and predictable, unlike volatile cryptocurrencies like ETH or BTC.