verify pass: resolve VERIFY flags (corrections + citations + honest UNCONFIRMED)

Corrected real errors: several 1.7.x release dates, resource_pack_send version,
config packet ordering, structured-component count (56), PLAYER_LOADED (1.21.4),
entity_sound_effect field order. Confirmed+cited the rest; remaining ~19 items
re-marked UNCONFIRMED (third-party/ViaLegacy/26.2 internals unreachable from refs).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

versions/1.20.md

@@ -3,12 +3,12 @@
 | Release | Protocol # | Release date | ViaVersion package (bump *into* this) | minecraft-data dir |
 |---|---|---|---|---|
 | 1.20 | **763** | 2023-06-07 | `v1_19_4to1_20` (762→763) | `data/pc/1.20` |
-| 1.20.1 | **763** | 2023-06-12 <!-- VERIFY: exact 1.20.1 date not fetched from wiki --> | *(same protocol as 1.20; no bump)* | `data/pc/1.20.1` |
+| 1.20.1 | **763** | 2023-06-12 | *(same protocol as 1.20; no bump)* | `data/pc/1.20.1` |
 | 1.20.2 | **764** | 2023-09-21 | `v1_20to1_20_2` (763→764) — **adds Configuration state** | `data/pc/1.20.2` |
 | 1.20.3 | **765** | 2023-12-05 | `v1_20_2to1_20_3` (764→765) | `data/pc/1.20.3` |
 | 1.20.4 | **765** | 2023-12-07 | *(same protocol as 1.20.3; no bump)* | `data/pc/1.20.4` |
 | 1.20.5 | **766** | 2024-04-23 | `v1_20_3to1_20_5` (765→766) — **structured item components + Known Packs** | `data/pc/1.20.5` |
-| 1.20.6 | **766** | 2024-04-29 <!-- VERIFY: exact 1.20.6 date not fetched from wiki --> | *(same protocol as 1.20.5; no bump)* | `data/pc/1.20.6` |
+| 1.20.6 | **766** | 2024-04-29 | *(same protocol as 1.20.5; no bump)* | `data/pc/1.20.6` |
 
 Sources: minecraft.wiki release articles ([1.20](https://minecraft.wiki/w/Java_Edition_1.20) fetched 2026-06-19, [1.20.2](https://minecraft.wiki/w/Java_Edition_1.20.2), [1.20.3](https://minecraft.wiki/w/Java_Edition_1.20.3), [1.20.4](https://minecraft.wiki/w/Java_Edition_1.20.4), [1.20.5](https://minecraft.wiki/w/Java_Edition_1.20.5) all fetched 2026-06-19); ViaVersion source at `/tmp/mcproto-refs/ViaVersion/`; minecraft-data at `/tmp/mcproto-refs/minecraft-data/data/pc/` (`version.json` numbers cross-checked: 1.20/1.20.1=763, 1.20.2=764, 1.20.3/1.20.4=765, 1.20.5/1.20.6=766).
 
@@ -244,7 +244,7 @@ public static final StructuredDataKey<Integer>     DAMAGE         = new Structur
 public static final StructuredDataKey<Unbreakable> UNBREAKABLE1_20_5 = new StructuredDataKey<>("unbreakable", Unbreakable.TYPE);
 ```
 
-The full 1.20.5 component set is registered in `onMappingDataLoaded()` — `CUSTOM_DATA`, `MAX_STACK_SIZE`, `MAX_DAMAGE`, `DAMAGE`, `UNBREAKABLE1_20_5`, `RARITY`, `HIDE_TOOLTIP`, `FOOD1_20_5`, `FIRE_RESISTANT`, `CUSTOM_NAME`, `LORE`, `ENCHANTMENTS1_20_5`, `CAN_PLACE_ON1_20_5`, `CAN_BREAK1_20_5`, `ATTRIBUTE_MODIFIERS1_20_5`, `CUSTOM_MODEL_DATA1_20_5`, `TRIM1_20_5`, `POTION_CONTENTS1_20_5`, `WRITABLE_BOOK_CONTENT`, `WRITTEN_BOOK_CONTENT`, `BANNER_PATTERNS`, `PROFILE1_20_5`, `FIREWORKS`, `ITEM_NAME`, … (≈ 60 keys). Source: `Protocol1_20_3To1_20_5.java:282–302`.
+The full 1.20.5 component set is registered in `onMappingDataLoaded()` — `CUSTOM_DATA`, `MAX_STACK_SIZE`, `MAX_DAMAGE`, `DAMAGE`, `UNBREAKABLE1_20_5`, `RARITY`, `HIDE_TOOLTIP`, `FOOD1_20_5`, `FIRE_RESISTANT`, `CUSTOM_NAME`, `LORE`, `ENCHANTMENTS1_20_5`, `CAN_PLACE_ON1_20_5`, `CAN_BREAK1_20_5`, `ATTRIBUTE_MODIFIERS1_20_5`, `CUSTOM_MODEL_DATA1_20_5`, `TRIM1_20_5`, `POTION_CONTENTS1_20_5`, `WRITABLE_BOOK_CONTENT`, `WRITTEN_BOOK_CONTENT`, `BANNER_PATTERNS`, `PROFILE1_20_5`, `FIREWORKS`, `ITEM_NAME`, … (56 keys: 53 explicit `.add()` calls in `Protocol1_20_3To1_20_5.java:282–302` plus 3 from `StructuredDataKeys1_20_5` — `container`, `chargedProjectiles`, `bundleContents`). Source: `Protocol1_20_3To1_20_5.java:282–302`; `api/.../data/version/StructuredDataKeys1_20_5.java`.
 
 **Downgrade to NBT (the proxy-critical bit):** to serve a 1.20.3 (765) client, ViaVersion converts the typed component map *back* into the old-style `tag` NBT compound. That entire reverse mapping lives in `rewriter/StructuredDataConverter.java` (a large per-component switch importing every `…item.data.*` class). The forward/back item handling is wired through `BlockItemPacketRewriter1_20_5` + `ComponentRewriter1_20_5`. Source: `v1_20_3to1_20_5/rewriter/StructuredDataConverter.java` (class at `:74`), `Protocol1_20_3To1_20_5.java:78,88`.
 
@@ -351,10 +351,11 @@ A 766 client will wait for `SELECT_KNOWN_PACKS` before finalising its registries
 
 ---
 
-## VERIFY flags
+## Verification notes
 
-- `<!-- VERIFY -->` Exact release dates for **1.20.1** (used 2023-06-12) and **1.20.6** (used 2024-04-29) were not fetched from the wiki in this pass — only the protocol-bumping releases' dates were confirmed from minecraft.wiki articles. Numbers (763 / 766 respectively) are confirmed from minecraft-data `version.json`.
-- The 1.20.5 structured-component **count (~60 keys)** is an approximation from reading the `onMappingDataLoaded()` filler chain (`Protocol1_20_3To1_20_5.java:282–302`); the precise canonical count per Mojang's registry is unconfirmed here.
+- **1.20.1 release date (2023-06-12):** CONFIRMED — minecraft.wiki/w/Java_Edition_1.20.1 infobox, fetched 2026-06-19. Protocol 763 confirmed from minecraft-data `version.json`.
+- **1.20.6 release date (2024-04-29):** CONFIRMED — minecraft.wiki/w/Java_Edition_1.20.6 infobox, fetched 2026-06-19. Protocol 766 confirmed from minecraft-data `version.json`.
+- **1.20.5 structured-component count (~60 keys):** The `onMappingDataLoaded()` filler chain in `Protocol1_20_3To1_20_5.java:282–302` makes 53 explicit `.add(StructuredDataKey.*)` calls, plus `.add(VersionedTypes.V1_20_5.structuredDataKeys().keys())` which adds 3 more (`container`, `chargedProjectiles`, `bundleContents` from `StructuredDataKeys1_20_5.java`) — total **56 keys** in ViaVersion's registry. The "~60" approximation is slightly high; corrected to 56. (Mojang's canonical count may differ if any keys are omitted from ViaVersion's tracking; the ViaVersion count is the best available source here.)
 
 ## Sources