diff --git a/docs/hygiene-history/ticks/2026/05/16/1547Z.md b/docs/hygiene-history/ticks/2026/05/16/1547Z.md
index b8ebc329f2..4708232664 100644
--- a/docs/hygiene-history/ticks/2026/05/16/1547Z.md
+++ b/docs/hygiene-history/ticks/2026/05/16/1547Z.md
@@ -35,7 +35,7 @@ The primary worktree's HEAD had silently moved while my session was idle
 between cron fires.
 
 This is the canonical multi-Otto-branch-state-contamination pattern in
-[B-0519](../../../../backlog/P3/B-0519-multi-otto-branch-state-contamination-rca-2026-05-14.md).
+[B-0519](../../../../../backlog/P3/B-0519-multi-otto-branch-state-contamination-rca-2026-05-14.md).
 The catch:
 
 - `git status --short` returned empty → working tree clean → no file
@@ -48,7 +48,7 @@ The catch:
 
 The substrate-honest takeaway: the `git branch --show-current` discipline
 documented in
-[`zeta-expected-branch.md`](../../../../../.claude/rules/zeta-expected-branch.md)
+[`zeta-expected-branch.md`](../../../../../../.claude/rules/zeta-expected-branch.md)
 is the primary catch (not the `ZETA_EXPECTED_BRANCH` env-var hook, which can't
 survive cross-tool-call shell-environment evaporation).
 
@@ -86,13 +86,13 @@ cascade-confirmation shard (PR to be opened next).
 
 ## Composes with
 
-- [`docs/AUTONOMOUS-LOOP-PER-TICK.md`](../../../../AUTONOMOUS-LOOP-PER-TICK.md)
-- [`.claude/rules/zeta-expected-branch.md`](../../../../../.claude/rules/zeta-expected-branch.md)
+- [`docs/AUTONOMOUS-LOOP-PER-TICK.md`](../../../../../AUTONOMOUS-LOOP-PER-TICK.md)
+- [`.claude/rules/zeta-expected-branch.md`](../../../../../../.claude/rules/zeta-expected-branch.md)
   (the branch-discipline that caught the HEAD-shift)
-- [`.claude/rules/refresh-world-model-poll-pr-gate.md`](../../../../../.claude/rules/refresh-world-model-poll-pr-gate.md)
+- [`.claude/rules/refresh-world-model-poll-pr-gate.md`](../../../../../../.claude/rules/refresh-world-model-poll-pr-gate.md)
   (extreme-cost-aware tier behavior; `git log` over `gh pr view`)
-- [B-0519](../../../../backlog/P3/B-0519-multi-otto-branch-state-contamination-rca-2026-05-14.md)
+- [B-0519](../../../../../backlog/P3/B-0519-multi-otto-branch-state-contamination-rca-2026-05-14.md)
   (multi-Otto contamination RCA)
-- [Tick 1535Z shard](1535Z.md) (the prior tick this one confirms)
+- [Tick 1535Z shard (PR #3898)](https://github.com/Lucent-Financial-Group/Zeta/pull/3898) (the prior tick this one confirms)
 - PR #3897 (B-0462 close, MERGED `4443c09`)
 - PR #3898 (1535Z tick shard, OPEN auto-merging)