Escher Liquid Staking contract

Liquid staking components for Cosmos/CosmWasm-based contracts.

• Babylon Chain: Babylon Liquid Staking Contract

Babylon Contract Details:

The Babylon contract includes optimization mechanisms to maintain validator balance. Every 360 blocks, the contract automatically executes staking, unstaking, delegation, collect reward, operations to ensure stable performance. Reward management on Babylon is directly embedded within the liquid staking contract.

Architecture

• For liquid staking contract architecture implementation, please see: Architecture

Components:

Cosmos/Cosmwasm

Component	Description	Language(s)
Liquid Staking	Cosmwasm Liquid Staking Contract	Rust
CW20 Token Minter	Union CW20 to handle cw20 token mint & burn	Rust
UCS30 Zkgm	Union UCS30 Zkgm to transfer asset	Rust

Backend

Component	Description	Language(s)
Liquid Staking Backend service	Liquid Staking Backend Job Service to do process rewards and automatic transfer after unbonding complete	Node/TS

Indexer

Component	Description	Language(s)
Indexer	Cosmwos Indexer	Rust

Nix

This repo uses nix for deterministic and reproducible builds and development environments.

If you are unfamiliar with nix, we recommend zero to nix.

To enter the dev shell for this repo, run:

nix develop

To format the repo:

nix fmt

To build a package:

nix build .#liquidstaking-babylon

The built artifacts can be found in result. All rust packages will have the commit hash embeded at build time, via embed-commit. This is handled transparently by the crane builders from the union repo; the only requirement is that the embed-commit crate is added as a dependency (and the builds will fail if it is not a dependency):

$ nix build .#liquidstaking-babylon.release
$ ls -alhL result
-r-xr-xr-x 1 root root 553K Jan  1  1970 result
$ nix run guthub:unionlabs/union#embed-commit-verifier -- extract result
1ad4854a1e1d2cbce71c6b064a190ebf1662f947 # the commit has of the repo when this package was built