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chore: pr review
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IaroslavMazur committed Sep 13, 2024
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13 changes: 7 additions & 6 deletions docs/src/runtime/programs.md
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---

Solana contains a small handful of native programs, which are required to run
validator nodes. Unlike the third-party programs, the native programs are part of
validator nodes. Unlike third-party programs, the native programs are part of
the validator implementation and can be upgraded as part of cluster upgrades.
Upgrades may occur to add features, fix bugs, or improve performance. Interface
changes to individual instructions should rarely, if ever, occur. Instead, when
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## Config Program

Add configuration data to the chain, alongside the list of public keys that are allowed to modify it
Add configuration data to the chain, followed by the list of public keys that
are allowed to modify it

- Program id: `Config1111111111111111111111111111111111111`
- Instructions: [config_instruction](https://docs.rs/solana-config-program/VERSION_FOR_DOCS_RS/solana_config_program/config_instruction/index.html)

Unlike the other programs, the Config program does not define any individual
instructions. It has just one implicit instruction: "store". Its
instruction data is a set of keys that gate access to the account and the
data stored inside it.
data to stored inside of it.

## Stake Program

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Multiple signatures can be verified. If any of the signatures fail to verify, an error is returned.

- Program id: `Ed25519SigVerify111111111111111111111111111`
- Instructions: [ed25519_instruction](https://docs.rs/solana-sdk/1.18.18/solana_sdk/ed25519_instruction/index.html)
- Instructions: [ed25519_instruction](https://docs.rs/solana-sdk/VERSION_FOR_DOCS_RS/solana_sdk/ed25519_instruction/index.html)

The ed25519 program processes an instruction. The first `u8` is a count of the number of
signatures to check, which is followed by a single byte padding. After that, the
Expand Down Expand Up @@ -139,7 +140,7 @@ struct Secp256k1SignatureOffsets {
}
```

The pseudo code of the verification:
The pseudo code of the recovery verification:

```
process_instruction() {
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### Optimization notes

The operation will have to take place after (at least, partial) deserialization,
The operation will have to take place after (at least partial) deserialization,
but all inputs come from the transaction data itself, which allows it to be
relatively easy to execute in parallel to the transaction processing and the PoH
verification.

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