M12-03B Status

status: done task: define source library identity, owner, read-only state, and invalidation tokens updated: 2026-08-17 America/New_York enablingTask: true parityStateChange: false

Scope

Schema 1 derives sourceLibraryId from a canonical source locator and source .blend SHA-256. Each operation binding then fixes one source data-block, its operation-specific owner and read-only state, source generation/revision, dependency-closure SHA-256, and a hash-derived invalidation token.

APPEND owns a writable local Main ID. LINK remains owned by the matching source library and is fully read-only. LIBRARY_OVERRIDE owns a writable local override while retaining a read-only linked reference and hierarchy root. This is a pure protocol task and does not mutate Blender Main.

Evidence

npm --prefix web run test:library-operation-identity passed 6/6.
Stable source identity changes when either locator or source bytes change.
APPEND/LINK/LIBRARY_OVERRIDE produce distinct invalidation tokens for the same source root and reject owner substitution, read-only drift, reference substitution, unknown fields, and forgery.
Source library/hash, generation, revision, and dependency closure drift each return REVISION_CONFLICT; the unchanged state revalidates the original binding exactly.
The one initial test expectation was corrected to the actual fail-fast exact-schema code, then the complete suite was rerun successfully.

Artifact Hashes

protocol: 5371133bd98e05935cd75bab582abedec32a36559af8d212f0bc8a534ef19451
golden bindings: b39c0f26697ac688c1203ae4e3e27d8a02686c7c9da9afc438c89a0b4d69370f
unit suite: 0e5b2c82d481180eb8eb22de16ad8cdef5e58fa7423c26011faaffbac788e547
manifest: f388aedb9c0901932cf90c058f2f2b83259d9797cd6b144566a25e37a348c64b
package commands: 48cf41f0d0041bf4f497bc2a454cfa9469874eded1775cea50fe3249d4e0b59e

Next Task

M12-03C: create a desktop single-Object append fixture and record stable Object, Mesh, Material, and Image mappings.

Rollback

Remove the library operation identity protocol, golden, unit suite, manifest, package command, and this status entry. Restore M12-03B to pending and the queue to M12-03B. No parity ledger rollback is required.

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