> For the complete documentation index, see [llms.txt](https://learn.sanctum.so/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.sanctum.so/docs/technical-documentation/sanctum-lsts.md).

# Sanctum LSTs

## Mechanism

All Sanctum LSTs were deployed using a fork of the Solana Labs’ stake pool program, which is also used by protocols like Jito and Blaze, amongst others. More specifically, Sanctum is using the [program@v1.0.0 tag](https://github.com/solana-program/stake-pool/releases/tag/program%40v1.0.0) of the original stake pool program.

## Fees

Sanctum LSTs all share the same default fee model. 

* 10bps (0.1%) withdrawal fees, applicable both on withdraw SOL and withdraw stake instructions. 
* 5% epoch fees, split equally between operators and Sanctum.

## Security

#### Audits

The Sanctum Stake Pool programs inherit the Solana Labs's stake pool program security, which is the most audited program on Solana.\
\
Audit 1: [Halborn](https://github.com/solana-labs/security-audits/blob/master/spl/HalbornStakePoolAudit-2023-12-31.pdf)\
Audit 2: [Kudelski](https://github.com/solana-labs/security-audits/blob/master/spl/KudelskiStakePoolAudit-2021-07-07.pdf)\
Audit 3: [Ottersec](https://github.com/solana-labs/security-audits/blob/master/spl/OtterSecStakePoolAudit-2023-01-20.pdf)\
Audit 4: [Neodyme](https://github.com/solana-labs/security-audits/blob/master/spl/NeodymeStakePoolAudit-2022-12-10.pdf)\
Audit 5: [Quantstamp](https://github.com/solana-labs/security-audits/blob/master/spl/QuantstampStakePoolAudit-2021-10-22.pdf)

#### Safety

The upgrade authority of Sanctum stake pool programs is currently held by a 11-member multisig. All members are highly reputable actors in the space: Jito, Jupiter, Laine, Mango, MRGN, Solblaze, SolanaFM and Sanctum. Any changes to the LST program will have to be approved by a majority vote from this multisig. No single party can unilaterally change the program. We plan to significantly grow the size of the multisig and eventually freeze the program.

The day-to-day management of the LSTs is currently held by Sanctum. This management authority is in charge of setting up the LSTs and staking the deposited SOL. Please note that the management authority **cannot steal your funds, even if compromised**. It is possible for the management authority to raise fees, however the program is designed that fee changes are capped and happen with ample warning, so you have sufficient time to withdraw your SOL before any changes take effect: see [here](https://spl.solana.com/stake-pool/fees) for details.