Solution: LP-0013 — Token Program Improvements: Authorities

[bristinWild]

Implementation of LP-0013: mint authority model for the LEZ Token program.

Repository: https://github.com/bristinWild/logos-execution-zone (branch: main)

What's implemented:

• lez-authority crate — agnostic AuthoritySlot library (RFP-001 cross-reference)
• mint_authority: Option<[u8; 32]> field on TokenDefinition::Fungible
• NewFungibleDefinitionWithAuthority instruction — create token with authority from day one
• Mint instruction updated — authority-gated, deterministic rejection when revoked
• SetAuthority instruction — atomic rotation and permanent revocation
• Wallet SDK facade methods: send_set_authority, send_new_definition_with_authority
• 2 integration tests against live sequencer
• 50 unit tests (42 token_program + 8 authority scenarios + 7 lez-authority)
• CI green: https://github.com/bristinWild/logos-execution-zone/actions
• README: docs/LP-0013-README.md
• Demo script: scripts/demo-full-flow.sh
• Example scripts: scripts/examples/fixed_supply_token.sh, scripts/examples/variable_supply_token.sh

Pending: CU cost measurement on devnet and narrated video demo (will update solution doc).

See solutions/LP-0013.md for full details.

[github-actions]

✅ Validation passed

A reviewer will assess against the prize criteria.
ℹ️ Solution submission for LP-0013.
ℹ️ Checking repo: https://github.com/bristinWild/logos-execution-zone

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Automated check. See solution template and TERMS.

[bristinWild]

Added the Demo Video - https://www.youtube.com/watch?v=fJWbhobNIFM

[bristinWild]

Note for evaluation:

This submission modifies the actual LEZ token program directly - programs/token/core/src/lib.rs, programs/token/src/mint.rs, programs/token/src/set_authority.rs, and the wallet facade - rebased onto upstream HEAD (4079b0c9). The implementation is a production integration into the existing LEZ token program codebase, following the same patterns as the rest of the token program. The lez-authority crate is a standalone reusable primitive that satisfies the RFP-001 cross-reference.

[fryorcraken]

@bristinWild

Can your submission please be a PR on https://github.com/logos-blockchain/lez-programs/tree/main? This is where we moved the token program. Dedicated repo means less conflict and the owner of this repo (different from lez) will be able to review the PR itself (and merge the winning submission).

Thanks!

[bristinWild]

Hello @fryorcraken

Updated submission as requested - PR on lez-programs: logos-blockchain/lez-programs#125
Demo video after porting to lez-programs repo - https://youtu.be/4E7lBgdNwb4

Thank you!