Solana Genesis #001 · LIVE · 🔒 Sealed
CryptoPunk #7523 · LIVE · 🔒 Sealed
Aurory Land Plot #44 · ENDING SOON · 🔒 Sealed
Mad Lads #2891 · SETTLED · 240 SOL
DeGods #8812 · LIVE · 🔒 Sealed
y00ts #1204 · SETTLED · 88 SOL
Solana Genesis #001 · LIVE · 🔒 Sealed
CryptoPunk #7523 · LIVE · 🔒 Sealed
Aurory Land Plot #44 · ENDING SOON · 🔒 Sealed
Mad Lads #2891 · SETTLED · 240 SOL
DeGods #8812 · LIVE · 🔒 Sealed
y00ts #1204 · SETTLED · 88 SOL
Blind Auctions · Arcium MPC · Solana

Bid Without
Being Seen.

Every bid is encrypted by Arcium's MPC network before it touches the blockchain. No sniping. No collusion. No MEV. Only the winner is revealed at close.

Live Auctions
24
Bids sealed by Arcium
Total Settled
3,812
Zero bid leaks
Volume (SOL)
48,204
Testnet
Encrypted Bids
91,447
MPC-sealed
Live Auctions

All Bids Sealed.
Until the Gavel Falls.

Bids are encrypted client-side and processed by Arcium's MPC cluster. Nobody — not even the auctioneer — can see competing bids until the auction closes.

🎭
Live
Digital Art
Mad Lads #4421
by Mad Lads · Coral
Bids
8
High Bid
🔒 Sealed
Ends In
2h 14m
🔒
All bids encrypted · Arcium MPC
🌌
Ending Soon
Generative Art
Aurory #8812
by Aurory · Official
Bids
21
High Bid
🔒 Sealed
Ends In
0h 18m
🔒
All bids encrypted · Arcium MPC
Upcoming
1/1 Art
DeGods #0001
by DeGods · Legendary
Bids
Reserve
🔒 Hidden
Starts In
6h 00m
🔒
Reserve price encrypted · Arcium MPC
Architecture

Blind by Design.
Not by Promise.

Traditional auctions expose bids on-chain, enabling sniping and collusion. StealthBid uses Arcium MPC to make bid privacy a cryptographic guarantee.

01
🔐
Bid Encrypted Client-Side
Your bid amount is encrypted in the browser using Arcium's threshold key before any transaction is signed. The plaintext never leaves your device.
02
⛓️
Ciphertext Stored On-Chain
Only the encrypted bid is written to Solana. No one — not the auctioneer, not validators, not other bidders — can read your bid amount during the auction.
03
Arcium MPC Finds Winner
At auction close, Arcium's 3-of-5 MPC cluster computes the winning bid over all encrypted inputs simultaneously. No single node sees any plaintext bid.
04
🏆
Winner Only Revealed
Arcium selectively decrypts only the winning bid and winner address. All losing bids remain permanently sealed — their amounts are never revealed.
Arcium Integration

Confidential
computing for
fair auctions

Arcium is a parallelized confidential computing network on Solana. It enables computation over encrypted data — so the auction settlement logic runs without any party seeing the bids.

StealthBid uses Arcium's MXE (Multiparty Execution) environment to run winner determination over sealed bid ciphertexts. The result is mathematically guaranteed blind auction — not just a policy.

Losing bidders never have their amounts revealed. MEV bots have nothing to front-run. Colluding bidders cannot coordinate because no bid is visible during the auction window.

Auction Lifecycle — Privacy at Every Step
B
Bidder encrypts bid in browser
Amount threshold-encrypted with Arcium cluster key. Plaintext stays local.
S
Ciphertext committed on Solana
Encrypted bid stored on-chain. Bidder identity is public; amount is sealed.
A
Auction closes — Arcium MXE runs
3-of-5 MPC nodes jointly compute max(bids) over all ciphertexts. Zero plaintext exposure during computation.
A
Selective decryption of winner only
Arcium reveals winning bid amount and winner address. All other bids stay permanently encrypted.
S
Settlement on Solana
NFT transferred to winner. Losing bids refunded. Winning amount settled — amounts never publicly disclosed.
🚫

No Sniping

Bidders cannot react to others' bids because no bid amounts are visible during the auction window.

🤝

No Collusion

Bidder rings cannot coordinate because there is no information to coordinate on — all bids are sealed.

No MEV Leakage

Validators and searchers cannot extract value from bid information — there is none to extract.