Exact authority reachable and not due.
BKU013 / DUE-QUEUE ESCALATION + SOURCE AVAILABILITY
A missing page is not a stale claim.
BKU013 defines what happens when review becomes due, a fetch fails, a page moves or an exact authority disappears. The workflow retries and verifies exact scope before considering any successor source.
AVAILABILITY BOUNDARY
URL reachability is maintenance evidence. It does not prove a field true or false, authorize a replacement source, certify compatibility, recommend a product, or make a bicycle safe to ride.
12review records
10current availability
2scope review
0retry / unavailable
9authorities checked
01 / AVAILABILITY REVIEW
Every row stays tied to the exact queue, evidence and field identity.
Nine unique exact authoritative URLs behind the twelve queue records were reachable during this review. Blocked fields remain blocked when the source simply does not state the requested value; scope reviews remain identity problems.
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02 / ESCALATION STATES
Five maintenance states. Zero manufactured failures.
Review date arrived. Re-open exact authority before changing anything.
One bounded retrieval failed. Retry the same authority first.
Repeated bounded checks cannot reach the exact authority. Preserve prior evidence and open successor review.
A nearby or moved page exists, but exact product/field scope must be reconciled first.
REAL COUNTS
Current review: 10 current availability records, 2 scope reviews, 0 scheduled due, 0 retry pending and 0 source unavailable. Zero states remain zero instead of being fabricated for demonstration.
03 / AUTHORITATIVE SUCCESSOR RULES
A replacement source must prove continuity, not merely look nearby.
Same exact product/model, or an authority explicitly maps the old record to its successor.
The replacement supports the same field semantics, not just the same family name.
Manufacturer/institution authority stays intact. Retailer or aggregator pages do not silently replace it.
Accepting a successor appends an event; the previous URL and evidence stay inspectable.
A moved URL is a discovery clue only until exact identity and field scope are verified.
Page absence or fetch failure does not by itself prove the stored field obsolete or conflicting.
04 / APPEND-ONLY OUTCOMES
Nine successful availability checks were appended. No historical evidence was rewritten.
The source-change ledger now records the successful availability checks beside prior reverification, scope-divergence and resolution evidence. No retry or unavailable event was invented because the exact queue authorities were reachable in this review.
18source-change events
9availability success
0source unreachable
0stale
0true conflicts
05 / AUTHORITY GATE
Source availability review ends before bicycle decisions begin.
NO SOURCE SUBSTITUTIONExact identity and field scope must be proven before a successor supports a claim.
NO COMPATIBILITY VERDICTReachability or source continuity is not system certification.
NO PROCEDURE / SAFETYRepair, installation, torque and return-to-use remain with exact technical documentation.
NO COMMERCE0 offers · 0 affiliate destinations · 0 sponsored positions.
ICU / CONNECTED DISCOVERY
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These are bounded editorial connections; paid placement does not influence them.
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