Files
SeedPass/js/packages/test-vectors
thePR0M3TH3ANandClaude Opus 5 e3b1325a2b fix(vault): entry ids are never reused -- allocate from a persisted watermark
An entry id doubles as the BIP-85 derivation index for managed_account and
seed entries, which makes it a permanent cryptographic coordinate: "Alice is
account #184" is a recovery claim, and #184 must mean Alice forever. But both
implementations allocated ids as max(live ids)+1, and sync deletion removes
entries via tombstones -- so deleting #184 on one device let the next
creation reissue #184 to a NEW entry, which then re-derived the departed
identity's exact child seed and npub. Tombstone retention (capped at 2048)
made even the evidence expire.

Allocation now comes from a high-watermark persisted in _sync_meta.next_index:
never-decreasing, bumped on every insert/save (explicit-id inserts included),
merged as max(both sides' watermarks, one past any merged entry or tombstone
id), and identical in both implementations -- the merge computation must stay
byte-for-byte the same in sync_conflict.py and sync/merge.ts. _sync_meta was
chosen because both sides already round-trip it (it carries the tombstones),
so old builds preserve the field and no schema version bump is needed.
Legacy vaults heal on their next allocation: the floor folds in tombstone ids
still within retention, and the first save persists the watermark.

Python-side key parsing mirrors the TS regex exactly (ASCII digits, no
leading zeros, JS safe-integer range): str.isdigit() alone accepts Unicode
digits that Number() rejects, which would have made the two implementations
compute different watermarks from the same payload.

Fixtures regenerated from Python; the byte-for-byte entry-creation parity
test now passes with the watermark present, proving TS's insert-time bump
and Python's save-time bump converge on identical indexes. Verified: the
recycle regression tests fail on both pre-fix implementations; 1180 Python,
224 core, 149 CLI tests and all 36 cross-impl checks pass with the fix.

Co-Authored-By: Claude Opus 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01Tkj4rzKBA3uhfgk7kqjsb8
2026-08-18 13:11:50 -04:00
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