Existing BackupRestore and TimeSeries REQ-SERIES-003 and AC-SERIES-005/014/015, portable series backup acceptance and strict format contracts remain unchanged. No serializer, alias/Id, stored bytes, canonical value, retention, public protocol or provider changes.
REQ-BACKUP-SERIES-ROW-WIRE-001: the complete independent expected SampleRecord array must represent the actual independently serialized and independently decoded per-row object graph, in addition to every literal field. Persisted sample rows are separate payloads; their original in-memory cross-row string aliases are not part of a backup or read identity contract. serialization of an entire returned array preserves actual reference identity and is not a value-canonical encoding. Expected rows therefore each own nonempty series/tags string objects from the frozen literal cpu/{}; actual rows are left untouched. Do not normalize, intern, reserialize each actual row or switch to a subset/value-only wire assertion.
AC-BACKUP-SERIES-ROW-WIRE-001 maps existing SeriesPortableBackupTests.SeriesFloorAndIdReceiptsRestoreThroughCliThenBoundedContinuationSurvivesTwoColdOwners. Preserve all complete independent sample literals (id, exact UTC/offset timestamp, IEEE value bits, sequence, series, tags), complete ordered record equality, whole array byte equality, raw row bytes, floor/status, aggregate2/7/3/4/3.5 then3/12/3/5/4, original outcomes/receipts, fresh restored authority, exact source/backup preservation and both joined cold owners. Before unchanged whole-array wire comparison explicitly require expected AND actual cross-row SeriesId/TagsJson references to be distinct for this actual per-row read path; unexpected ownership sharing is not ignored. Fresh immutable literal string ownership changes only the expected test construction, never actual returned objects or storage format.
flowchart LR
A[Actual Append writes each SampleRecord payload] --> S[Per-row persisted bytes]
S --> D[Each row decoded with reset isolated session]
D --> R[Read preserves each decoded series and raw tags]
L[Independent full literal row with own series and tags] --> E[Expected array same per-row ownership]
R --> P[Full fields and pair-distinct ownership]
E --> P
P --> B[Unchanged complete array byte equality]
B --> C[Original backup CLI restore continuation and two joined cold owners]
The test assertions SeriesPortableBackupAssertions own the ExpectedRow construction and the exact ownership prerequisites only; the existing case and its seed, trial, continuation, outcome, full-cut and cold helpers are unchanged, with no new case, fixture, API or granted authority. The observed failure was an expected-side artifact: the field dimensions matched, but the expected rows shared cross-row SeriesId/TagsJson string objects that the independently decoded actual rows do not. This is a test-oracle correction, not a serializer or product defect.