# Request for Grant Proposals: Cross Chain Bridges | Up to US$150,000

**URL:** <https://forum.aztec.network/t/request-for-grant-proposals-cross-chain-bridges-up-to-us-150-000/7477>\
**Category:** Aztec\
**Tags:** rfgp, bridge\
**Created:** [February 14, 2025, 4:52pm UTC](https://forum.aztec.network/t/request-for-grant-proposals-cross-chain-bridges-up-to-us-150-000/7477 "2025-02-14T16:52:29Z")\
**Posts on this page:** 1\
**Showing post:** 20

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**Author:** ![JustAnotherDevv](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.aztec.network/justanotherdevv/32/2408_2.png) [@JustAnotherDevv](https://forum.aztec.network/u/JustAnotherDevv)\
**Post date:** [March 24, 2025, 12:26pm UTC](https://forum.aztec.network/t/request-for-grant-proposals-cross-chain-bridges-up-to-us-150-000/7477/20 "2025-03-24T12:26:49Z")

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**Proposal name: Chameleon - Cross-chain private multi-sig**

Chameleon is a private cross-chain multisig solution that enables users to control assets on public L2s through a privacy-preserving multisig on Aztec. Our bridge connects Aztec testnet to Optimism Sepolia by using a hybrid approach that combines a relayer network with an optimistic verification mechanism. Users can privately create and manage multisig wallets on Aztec with customizable X out of Y signers thresholds, then use these to authorize transactions on Optimism without revealing tany of the signers or voting patterns. This creates powerful use cases for DAOs, treasury management, and organizations wanting privacy while interacting with defi on public networks to tap into their liquidity sources.

[Full proposal](https://forum.aztec.network/t/chameleon-cross-chain-private-multi-sig/7617)

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_[View the full topic](https://forum.aztec.network/t/request-for-grant-proposals-cross-chain-bridges-up-to-us-150-000/7477)._