# Introducing Concrete - A next generation yield optimizer for Solidly+ By [Beluga.fi](https://paragraph.com/@simp2win) · 2022-10-30 --- What is Concrete? ----------------- Concrete is a next generation yield optimizer built on top of the improved version of Solidly, [Solidly+](https://solidly.com/). Solidly+ is an effort from the Solidly community to reiterate upon the protocol and make improvements upon the original codebase. Concrete is a fork of Solidex, carrying the torch of Solidex's veNFT and bringing the protocol forward into a new generation of Solidly. Concrete also implements new features not available in the original Solidex protocol such as veNFT splitting, allowing users to redeem their rockSOLID tokens into a veNFT with no lock-in from Concrete! What has been updated? ---------------------- * Solidex bugs have been fixed * Support for redeeming rockSOLID tokens for Solidly+ veNFTs * New UI/frontend * Bribe layer for ROCK lockers * New reward mechanism to incentivize holding rockSOLID (🤫 **more info coming soon**) * Protocol upgradeability through governance ROCK Token ---------- ROCK is the governance token of the Concrete protocol. Whenever SOLID is farmed by the protocol, ROCK tokens are minted as a reward to LPs. As a holder of ROCK you earn a share of the fees generated by the protocol, such as SOLID farmed, Solidly+ swap fees, and bribes. These fees are rewarded to holders in the form of locking ROCK for vlROCK. Locking ROCK tokens for vlROCK also provides the user with voting power over Concrete’s veNFT, allowing you to allocate the voting power of your ROCK tokens towards Solidly+ gauges. Concrete will also be offering a bribe layer for vlROCK holders, allowing protocol to deposit bribes for vlROCK holders to vote for specific pools on Solidly+. The initial supply of ROCK will be distributed to users who have burned SEX tokens on Fantom before the deadline for burning, fulfilled by Solidly Labs. rockSOLID Token --------------- rockSOLID is a tokenized form of veSOLID that is deposited into the Concrete protocol. Each rockSOLID token represents 1 locked SOLID token. Users can mint rockSOLID tokens by depositing their Solidly veNFTs to Concrete’s VeDepositor contract. This action can also be reversed through burning rockSOLID to split it into a new veNFT that holds the voting power equivalent to the amount of rockSOLID burned. As a rockSOLID holder, you earn a share of the SOLID farmed by the protocol and a share of ROCK’s emission rate. Holders also earn 3.5% of the bribes deposited in Concrete’s bribe vlROCK bribe layer. We also have an additional means of earning Farming on Concrete ------------------- Concrete optimizes yields for your assets on Solidly+, allowing you to make the most out of ve(3,3) yields! Concrete provides a set of yield opportunities for ve(3,3) to farm on: * Staking Solidly+ LPs to earn boosted SOLID yields and ROCK rewards * Minting rockSOLID using Solidly+ veNFTs to earn SOLID, ROCK, and a percentage of bribes to ROCK holders * Locking ROCK tokens to earn Concrete’s protocol fees and bribes for voting with ROCK voting power * **\[REDACTED\]** rockSOLID tokens to earn **amplified** yields on your rockSOLID tokens ROCK Bribe Layer ---------------- Following the launch of Concrete, we will be offering a new offering to our protocol, a bribe layer for vlROCK holders! This bribe layer will allow for protocols to deposit a bribe to Solidly+ pools to incentivize vlROCK holders to cast their voting power towards that pool. Depositing bribes will be completely permissionless, anyone can deposit a bribe for a pool and our keepers will handle the merkle distribution at the end of the epoch. A percentage (3.5%) of the bribe deposited will be rewarded to rockSOLID holders as an incentive for providing voting power for Concrete. As a vlROCK holder, you will be able to claim from the bribe merkle distributor with a click of a button! Governance ---------- Unlike Solidex, at launch, Concrete will have the ability to upgrade its contracts, allowing for bug fixes and new features to be added in the future! These upgrades will be handled through a governance system where vlROCK holders can vote for or against upgrades to the protocol. These proposals will then be executed or not depending on the quorum from vlROCK holders. We chose to adopt adopt a governance system to eliminate the need to trust Concrete over the ability to upgrade its contracts. Any upgrades to the protocol will have to be done through a vote by the holders. All Links --------- The following are all links affiliated with Concrete, any other links that are not on this list are a scam: * Website - [https://concrete.money/](https://concrete.money/)  * Twitter - [https://twitter.com/Concrete\_Money](https://twitter.com/Concrete_Money) * GitHub - [https://github.com/chainvisions/concrete](https://github.com/chainvisions/concrete) * Discord - [https://discord.gg/bM7X3aak5Z](https://discord.gg/bM7X3aak5Z) --- *Originally published on [Beluga.fi](https://paragraph.com/@simp2win/introducing-concrete-a-next-generation-yield-optimizer-for-solidly)*