# Riff Album grouping contract — registry

> Status: Adopted normative scoped contract.  
> Authority: [Indexer metadata](/Riff/LATEST/indexer-metadata).  
> Formation revision: RIFF-ALBUM-V2.

This bounded registry routes detailed ownership. Implementation and device-study status belong in
[the handoff](/Riff/LATEST/worklog), not this normative registry.

- [AG-1 Ownership, global grouping and publication](/Riff/LATEST/album-grouping-ag-1-ownership-and-inputs)
- [AG-7 Structural, artist and compilation rules](/Riff/LATEST/album-grouping-evidence-rules)
- [AG-8 Disc-folder families](/Riff/LATEST/album-grouping-disc-folders)
- [AG-9 Residual score](/Riff/LATEST/album-grouping-residual-score)
- [AG-10 Copies, positions and local conflicts](/Riff/LATEST/album-grouping-positions)
- [AG-11 Competing releases and placeholders](/Riff/LATEST/album-grouping-release-guards)
- [AG-5 Verification and consumer boundary](/Riff/LATEST/album-grouping-ag-5-verification)

Post-group presentation: [Singles classification](/Cuetree/singles). Derived ordinal input:
[filename evidence](/Cuetree/filename-evidence). Neither changes AG-9 weights or release barriers.