Sealed bids that stay sealed.
On Solana.

ShadowBid runs auctions inside an Arcium multi-party computation cluster. Your bid is encrypted in your browser; the global highest-bid state is encrypted on-chain; only the winner is ever revealed.

Browse auctions

Live auctions

Total bids

Settled

encrypted_state[0..28]sealed

33FCF7C539D55DE4C1

5E73D47ABBDC2595BD

69589C6785DBB1D5CC

3EFAC27F68C92005EC

C69B643ED99D330BC2

B8E8B415B27D1BE6A1

377F89A115F95F936C

FFDB2C75E9455CAE2F

34CD3B3B3C448D71F5

39294EF73EF8B52159

160749C88195C40656

3C8C75CE5E2D0631EB

C7D0F07F235058B3A0

83C017509DCFBEAB38

2B2C8666A4B7DF31B1

254AB6826DEC5CD633

19BF49424367A7C928

0A42FF09A14B58667D

3BEE19AF9EADDB6A8B

F52E5F9459E533C044

C8F4E760A4DE505AB4

1F6E5E4E2634FED9F4

11FD3E6FD4F58D1186

5DF155FCEEE8BA6374

D4F12B31998D7A7C98

D278519407046142D8

E0F66D27E4C37E64B9

BD75822707048D518D

encrypted_state[0..28]sealed · MXE only

························································

The same bytes that live on-chain — meaningless without the MPC cluster.

True sealed bids

RescueCipher + X25519 encrypts in your browser. The raw u64 never touches the wire.

MEV immune

The mempool only sees ciphertext. There's nothing for sandwich bots to read.

Loser privacy forever

Losing amounts are sealed by the MXE permanently. Only the winner is unmasked.

ZK winner reveal

Authority calls reveal_winner — the MXE decrypts only the winning amount + bidder.

Recent auctions

Anyone can bid. Only the seller can reveal.

See all

No auctions on this cluster yet.

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