The contribution link record and the live-recording clip record both began WCL1. The clip
record had it first (live-recording §5.1, the registry's only WCL1 row); the link record took
the same four bytes when it was added, so a reader that tells records apart by their magic
could not tell one from the other.
The link record is now WLK1, a magic nothing else in the registry, the code or an open branch
uses. live-contribution §6.2 and SPEC name it, §6.5 step 2 says the clip record's WCL1 is
refused as malformed, and codecs/registry.rs registers it (REGISTRY.md and registry/ exported
from it). joule-moq-ingest writes and reads it. The corpus live-conformance/links/ is
regenerated with it, its files now .wlk1, plus clip_record_magic, a part with the clip
record's magic, refused. live_contribution_verify.py reads WLK1 and also refuses each accepted
part mutated to WCL1.
A wire change: a link record written before this one is malformed to a reader of this
revision. The CHANGELOG says so and acknowledges every corpus file that changed.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
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