Licensing of open-dj artefacts

Artefact	Licence	Why
Spec prose (spec/, this directory's *.md)	CC-BY-4.0	LICENSE-SPEC.md; encourages cite + reuse.
JSON Schema (schema/)	CC-BY-4.0	Same as prose; schema is normative text.
Reference implementation (apps/open_dj/)	Apache-2.0	Repo-root LICENSE.
Vendor adapters (apps/adapters/<name>/)	Apache-2.0	Repo-root LICENSE, file-level.
Conformance corpus (tests/fixtures/conformance/)	CC-BY-4.0	Seed docs are treated as spec artefacts.
Test code (tests/)	Apache-2.0	Repo-root LICENSE.

Third-party reference material used for the Serato adapter

All clean-room; no code copied in.

Source	Licence	Use
triseratops	MPL-2	README docs only, format reference.
serato-tags	CC-BY-SA-4.0	Kaitai schema docs only.
pyserato	MIT	Reference only (output cross-check).
python-serato-crates	GPL-3	Not used. Excluded by ROADMAP C9.

If a future phase wants to embed triseratops code directly, it must live under apps/adapters/serato/_triseratops_port/ with every file carrying an MPL-2 header. The carve-out is explicit + auditable.

Nominative trademark use

"Serato", "Traktor", "Rekordbox", "djay", and related marks are property of their respective owners. open-dj references them only in the nominative sense -- describing the formats these applications produce. No endorsement or affiliation is implied.