# Bubble

> Bubble: Enterprise confidential finance. Built by Soda Labs. Technology: garbled-circuit MPC.

Part of the Soda Labs Privacy Hub, a neutral directory of the on-chain privacy
landscape: https://www.sodalabs.xyz/privacy-hub

## Key facts

- Entry type: Privacy project
- Category: Enterprise confidential finance
- Built by: Soda Labs
- Technology: Garbled-circuit MPC (MPC-GC)
- Tags: enterprise, treasury, confidential transfers
- Canonical page: https://www.sodalabs.xyz/privacy-hub/bubble

## Overview

Privacy-preserving portfolio management and confidential transactions across any L1, L2 and cross-chain operation. Garbled-circuit MPC with NIST-standard AES-256, measured at roughly 500 confidential transactions per second sustained, end to end, at about 14 cents per million transfers, so confidentiality is not paid for in latency or in fees. Contracts stay standard EVM, nothing has to be rewritten, and disclosure is governed by the contract rather than by an operator. The same engine runs in production on COTI, where it has more than 125 million transactions behind it. Live on Ethereum, Polygon, Arbitrum, Base and COTI.

## About Garbled-circuit MPC

Several parties jointly evaluate a function over encrypted inputs using garbled circuits and secret sharing, so no single party ever holds the plaintext. Compared side by side with the other approaches at https://www.sodalabs.xyz/taxonomy.

## Sources

- [Product](https://www.sodalabs.xyz/product)
- [Technology](https://www.sodalabs.xyz/technology)
- [Research](https://www.sodalabs.xyz/research)
- [Developer SDK](https://www.sodalabs.xyz/developers)

## Related entries

- [Arcium](https://www.sodalabs.xyz/privacy-hub/arcium): Confidential compute network
- [COTI](https://www.sodalabs.xyz/privacy-hub/coti): Confidential EVM L2 · in production
- [Nillion](https://www.sodalabs.xyz/privacy-hub/nillion): Blind-compute network
- [Partisia](https://www.sodalabs.xyz/privacy-hub/partisia): MPC L1
- [PriveX](https://www.sodalabs.xyz/privacy-hub/privex): Private perpetuals DEX
- [Renegade](https://www.sodalabs.xyz/privacy-hub/renegade): On-chain dark pool