Artifact Contracts

Artifacts matter because they survive the moment of execution and become someone else's input or evidence.

Package Surface

• serialized payloads that move between packages or persist across versions
• migration-aware schema forms
• shared error and compatibility records that consuming packages can reuse

First Proof Check

• src/bijux_proteomics_foundation/identity/identifiers.py and serialization/document_schema.py
• src/bijux_proteomics_foundation/serialization/ and compatibility/schema_migrations.py
• packages/bijux-proteomics-foundation/tests