feat: add otherIdentifiers to Dandiset model

Author: candleindark

dandischema/models.py

@@ -100,6 +100,7 @@
 PUBLISHED_VERSION_URL_PATTERN = (
     rf"^{DANDI_INSTANCE_URL_PATTERN}/dandiset/{VERSION_PATTERN}$"
 )
+DANDISET_IDENTIFIER_PATTERN = rf"^{ID_PATTERN}:\d{{6}}$"
 MD5_PATTERN = r"[0-9a-f]{32}"
 SHA256_PATTERN = r"[0-9a-f]{64}"
 
@@ -1674,9 +1675,24 @@ def contributor_musthave_contact(
     identifier: DANDI = Field(
         title="Dandiset identifier",
         description="A Dandiset identifier that can be resolved by identifiers.org.",
-        pattern=rf"^{ID_PATTERN}:\d{{6}}$",
+        pattern=DANDISET_IDENTIFIER_PATTERN,
         json_schema_extra={"readOnly": True, "nskey": "schema"},
     )
+
+    otherIdentifiers: Annotated[
+        list[Annotated[str, StringConstraints(pattern=DANDISET_IDENTIFIER_PATTERN)]],
+        Field(
+            default_factory=list,
+            title="Other Dandiset identifiers",
+            description="Other Dandiset identifiers as the Dandiset "
+            "resides in different DANDI instances.",
+            json_schema_extra={
+                "readOnly": True,
+                "nskey": "schema",
+            },
+        ),
+    ]
+
     name: str = Field(
         title="Dandiset title",
         description="A title associated with the Dandiset.",