fix merge

core/startos/src/s9pk/v2/specv2.md

@@ -0,0 +1,89 @@
+## Magic
+
+`0x3b3b`
+
+## Version
+
+`0x02` (varint)
+
+## Merkle Archive
+
+### Header
+
+- ed25519 pubkey (32B)
+- ed25519 signature of TOC sighash (64B)
+- TOC sighash: (32B)
+- TOC position: (8B: u64 BE)
+- TOC size: (8B: u64 BE)
+
+### TOC
+
+- number of entries (varint)
+- FOREACH section
+  - name (varstring)
+  - hash (32B: BLAKE-3 of file contents / TOC sighash)
+  - TYPE (1B)
+    - TYPE=MISSING (`0x00`)
+    - TYPE=FILE (`0x01`)
+      - position (8B: u64 BE)
+      - size (8B: u64 BE)
+    - TYPE=TOC (`0x02`)
+      - position (8B: u64 BE)
+      - size (8B: u64 BE)
+
+#### SigHash
+Hash of TOC with all contents MISSING
+
+### FILE
+
+`<File contents>`
+
+# Example
+
+`foo/bar/baz.txt`
+
+ROOT TOC:
+  - 1 section
+    - name: foo
+      hash: sighash('a)
+      type: TOC
+      position: 'a
+      length: _
+
+'a:
+  - 1 section
+    - name: bar
+      hash: sighash('b)
+      type: TOC
+      position: 'b
+      size: _
+
+'b:
+  - 2 sections
+    - name: baz.txt
+      hash: hash('c)
+      type: FILE
+      position: 'c
+      length: _
+    - name: qux
+      hash: `<unverifiable>`
+      type: MISSING
+
+'c: `<CONTENTS OF baz.txt>`
+
+"foo/"
+hash: _
+size: 15b
+
+"bar.txt"
+hash: _
+size: 5b
+
+`<CONTENTS OF foo/>` (
+  "baz.txt"
+  hash: _
+  size: 2b
+)
+`<CONTENTS OF bar.txt>` ("hello")
+`<CONTENTS OF baz.txt>` ("hi")
+