> For the complete documentation index, see [llms.txt](https://doc.zoofi.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://doc.zoofi.io/berachain-eco/bribe-vault-b-vault.md).

# Bribe Vault (B-Vault)

Under Berachain's Proof of Liquidity (PoL) mechanism, liquidity providers (LPs) are incentivized through emissions rewards. Zoo Finance's structured protocol leverages this PoL mechanism to create the Bribe Vault further enhancing the liquidity and capital efficiency within the Berachain ecosystem.

Bribe Vault (B-Vault) is a Pendle-like protocol. Users deposit assets and receive Principal Tokens (PT) and Yield Tokens (YT). Holding PT signifies ownership of the principal, while YT represents all real-time yields from the underlying assets. Unlike Pendle, It is perpetual, allowing users to hold PT or YT indefinitely without dealing with expiration.

The B-Vaults will be divided into epochs based on a fixed time cycle, with each subsequent epoch being generated only after the previous one ends. PT remains unchanged across different epochs. However, each epoch will have a uniquely numbered YT corresponding to that period.

Initially, we will set up B-Vaults for incentive assets on Berachain. Let's use USDC as an incentive asset example to explain the working mechanism of the B-Vault.

<figure><img src="/files/28T8LnFbtyDsmbktagf3" alt="" width="563"><figcaption></figcaption></figure>

When users deposit USDC into the B-Vault, they receive pUSDC at a 1:1 ratio. pUSDC is a rebasable token that provides interest earnings in USDC. At the same time, yUSDC is also generated at a 1:1 ratio and temporarily held in the contract. Users need to pay USDC to purchase a certain amount of yUSDC. The USDC used to purchase yUSDC serves as the interest source for pUSDC and is distributed to pUSDC holders. Additionally, the B-Vault earns rewards from Berachain's PoL mechanism, which are then distributed to yUSDC buyers.

<figure><img src="/files/9YXLbVmDxtaoCJ9kqCKm" alt=""><figcaption></figcaption></figure>


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://doc.zoofi.io/berachain-eco/bribe-vault-b-vault.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.