Files
SeedPass/js/packages/test-vectors/fixtures/sync_merge.json
T
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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{
"cases": [
{
"current": {
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "site",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"incoming": {
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "site-renamed",
"length": 16,
"modified_ts": 1700000010,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"merged": {
"_sync_meta": {
"last_merge_ts": 1700000010,
"next_index": 1,
"source_count": 1,
"sources": [
"tag-newer"
],
"strategy": "modified_ts_hash_tombstone_v2",
"tombstones": {}
},
"_system": {
"index0": {
"canonical_views": {},
"checkpoints": {},
"events": {},
"heads": {},
"schema_version": 1,
"stats": {
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"event_count": 0,
"last_compaction_ts": 0,
"last_validation_ts": 0,
"writer_count": 0
},
"view_manifest": {
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}
}
},
"entries": {
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"kind": "password",
"label": "site-renamed",
"length": 16,
"modified_ts": 1700000010,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"name": "newer-incoming-wins",
"source_tag": "tag-newer"
},
{
"current": {
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "site",
"length": 16,
"modified_ts": 1700000010,
"notes": "",
"tags": [],
"type": "password"
}
},
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},
"incoming": {
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "site-old",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"merged": {
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"next_index": 1,
"source_count": 1,
"sources": [
"tag-older"
],
"strategy": "modified_ts_hash_tombstone_v2",
"tombstones": {}
},
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},
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}
},
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"kind": "password",
"label": "site",
"length": 16,
"modified_ts": 1700000010,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"name": "older-incoming-loses",
"source_tag": "tag-older"
},
{
"current": {
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "site",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [
"a",
"c"
],
"type": "password",
"username": ""
}
},
"schema_version": 4
},
"incoming": {
"entries": {
"0": {
"archived": true,
"kind": "password",
"label": "site",
"length": 16,
"modified_ts": 1700000000,
"notes": "from-incoming",
"tags": [
"b",
"a"
],
"type": "password",
"username": "alice"
}
},
"schema_version": 4
},
"merged": {
"_sync_meta": {
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"next_index": 1,
"source_count": 1,
"sources": [
"tag-equal"
],
"strategy": "modified_ts_hash_tombstone_v2",
"tombstones": {}
},
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},
"view_manifest": {
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}
}
},
"entries": {
"0": {
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"custom_fields": null,
"kind": "password",
"label": "site",
"length": 16,
"links": null,
"modified_ts": 1700000000,
"notes": "from-incoming",
"tags": [
"a",
"b",
"c"
],
"type": "password",
"username": "alice"
}
},
"schema_version": 4
},
"name": "equal-ts-field-union",
"source_tag": "tag-equal"
},
{
"current": {
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "site",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [],
"type": "password"
},
"1": {
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"kind": "password",
"label": "keep",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"incoming": {
"entries": {
"0": {
"_deleted": true,
"archived": false,
"kind": "password",
"label": "site",
"length": 16,
"modified_ts": 1700000005,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"merged": {
"_sync_meta": {
"last_merge_ts": 1700000005,
"next_index": 2,
"source_count": 1,
"sources": [
"tag-delete"
],
"strategy": "modified_ts_hash_tombstone_v2",
"tombstones": {
"0": {
"deleted_ts": 1700000005,
"entry_hash": "",
"event_hash": "54256f38e047c9c99df60917aa2ad798ac232df7c56247e6b1681875f9ec5e97",
"source": "tag-delete"
}
}
},
"_system": {
"index0": {
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"checkpoints": {},
"events": {},
"heads": {},
"schema_version": 1,
"stats": {
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"writer_count": 0
},
"view_manifest": {
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}
}
},
"entries": {
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"kind": "password",
"label": "keep",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"name": "incoming-delete-creates-tombstone",
"source_tag": "tag-delete"
},
{
"current": {
"_sync_meta": {
"tombstones": {
"0": {
"deleted_ts": 1700000000,
"entry_hash": "",
"event_hash": "",
"source": "x"
}
}
},
"entries": {},
"schema_version": 4
},
"incoming": {
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "revived",
"length": 16,
"modified_ts": 1700000020,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"merged": {
"_sync_meta": {
"last_merge_ts": 1700000020,
"next_index": 1,
"source_count": 1,
"sources": [
"tag-revive"
],
"strategy": "modified_ts_hash_tombstone_v2",
"tombstones": {}
},
"_system": {
"index0": {
"canonical_views": {},
"checkpoints": {},
"events": {},
"heads": {},
"schema_version": 1,
"stats": {
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"last_compaction_ts": 0,
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"writer_count": 0
},
"view_manifest": {
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}
}
},
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "revived",
"length": 16,
"modified_ts": 1700000020,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"name": "entry-newer-than-tombstone-survives",
"source_tag": "tag-revive"
},
{
"current": {
"_sync_meta": {
"tombstones": {
"0": {
"deleted_ts": 1700000020,
"entry_hash": "",
"event_hash": "",
"source": "x"
}
}
},
"entries": {},
"schema_version": 4
},
"incoming": {
"entries": {
"0": {
"archived": false,
"kind": "password",
"label": "stale",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"merged": {
"_sync_meta": {
"last_merge_ts": 1700000020,
"next_index": 1,
"source_count": 1,
"sources": [
"tag-stale"
],
"strategy": "modified_ts_hash_tombstone_v2",
"tombstones": {
"0": {
"deleted_ts": 1700000020,
"entry_hash": "",
"event_hash": "",
"source": "x"
}
}
},
"_system": {
"index0": {
"canonical_views": {},
"checkpoints": {},
"events": {},
"heads": {},
"schema_version": 1,
"stats": {
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"event_count": 0,
"last_compaction_ts": 0,
"last_validation_ts": 0,
"writer_count": 0
},
"view_manifest": {
"builder_versions": {},
"canonical_view_types": [],
"local_only_view_types": [],
"version": 1
}
}
},
"entries": {},
"schema_version": 4
},
"name": "tombstone-beats-older-entry",
"source_tag": "tag-stale"
},
{
"current": {
"_sync_meta": {
"tombstones": {
"0": {
"deleted_ts": 1700000001,
"entry_hash": "aa",
"event_hash": "",
"source": "one"
}
}
},
"entries": {},
"schema_version": 4
},
"incoming": {
"_sync_meta": {
"tombstones": {
"0": {
"deleted_ts": 1700000009,
"entry_hash": "bb",
"event_hash": "",
"source": "two"
}
}
},
"entries": {},
"schema_version": 4
},
"merged": {
"_sync_meta": {
"last_merge_ts": 1700000009,
"next_index": 1,
"source_count": 1,
"sources": [
"tag-tt"
],
"strategy": "modified_ts_hash_tombstone_v2",
"tombstones": {
"0": {
"deleted_ts": 1700000009,
"entry_hash": "bb",
"event_hash": "",
"source": "two"
}
}
},
"_system": {
"index0": {
"canonical_views": {},
"checkpoints": {},
"events": {},
"heads": {},
"schema_version": 1,
"stats": {
"checkpoint_count": 0,
"event_count": 0,
"last_compaction_ts": 0,
"last_validation_ts": 0,
"writer_count": 0
},
"view_manifest": {
"builder_versions": {},
"canonical_view_types": [],
"local_only_view_types": [],
"version": 1
}
}
},
"entries": {},
"schema_version": 4
},
"name": "tombstone-vs-tombstone-newer-wins",
"source_tag": "tag-tt"
},
{
"current": {},
"incoming": {
"entries": {
"3": {
"archived": false,
"kind": "password",
"label": "new",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"merged": {
"_sync_meta": {
"last_merge_ts": 1700000000,
"next_index": 4,
"source_count": 1,
"sources": [
"tag-adopt"
],
"strategy": "modified_ts_hash_tombstone_v2",
"tombstones": {}
},
"_system": {
"index0": {
"canonical_views": {},
"checkpoints": {},
"events": {},
"heads": {},
"schema_version": 1,
"stats": {
"checkpoint_count": 0,
"event_count": 0,
"last_compaction_ts": 0,
"last_validation_ts": 0,
"writer_count": 0
},
"view_manifest": {
"builder_versions": {},
"canonical_view_types": [],
"local_only_view_types": [],
"version": 1
}
}
},
"entries": {
"3": {
"archived": false,
"kind": "password",
"label": "new",
"length": 16,
"modified_ts": 1700000000,
"notes": "",
"tags": [],
"type": "password"
}
},
"schema_version": 4
},
"name": "empty-current-adopts-incoming",
"source_tag": "tag-adopt"
}
],
"description": "merge_index_payloads parity cases. merged output includes the normalized empty _system.index0 skeleton and _sync_meta with strategy modified_ts_hash_tombstone_v2.",
"fixture_version": 1
}