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

---

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.