diff --git a/.github/workflows/check-schema.yaml b/.github/workflows/check-schema.yaml
new file mode 100644
index 00000000..038decf0
--- /dev/null
+++ b/.github/workflows/check-schema.yaml
@@ -0,0 +1,22 @@
+name: Lint and Validate
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+  workflow_dispatch:
+
+jobs:
+  lint-and-validate:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/checkout@v4
+  
+    - name: Install uv
+      uses: astral-sh/setup-uv@v5
+
+    - name: Validate examples against schemas
+      run: |
+        uv run scripts/validate-examples.sh
diff --git a/.python-version b/.python-version
new file mode 100644
index 00000000..24ee5b1b
--- /dev/null
+++ b/.python-version
@@ -0,0 +1 @@
+3.13
diff --git a/examples/air_temperature.zarr/README.md b/examples/air_temperature.zarr/README.md
new file mode 100644
index 00000000..0a8cecf4
--- /dev/null
+++ b/examples/air_temperature.zarr/README.md
@@ -0,0 +1,3 @@
+# Air Temperature
+
+This example comes from http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html. Accessed via https://github.com/pydata/xarray-data/blob/master/air_temperature.nc
diff --git a/examples/air_temperature.zarr/air/zarr.json b/examples/air_temperature.zarr/air/zarr.json
new file mode 100644
index 00000000..1053e05a
--- /dev/null
+++ b/examples/air_temperature.zarr/air/zarr.json
@@ -0,0 +1,65 @@
+{
+  "shape": [
+    2920,
+    25,
+    53
+  ],
+  "data_type": "int16",
+  "chunk_grid": {
+    "name": "regular",
+    "configuration": {
+      "chunk_shape": [
+        730,
+        13,
+        27
+      ]
+    }
+  },
+  "chunk_key_encoding": {
+    "name": "default",
+    "configuration": {
+      "separator": "/"
+    }
+  },
+  "fill_value": 0,
+  "codecs": [
+    {
+      "name": "bytes",
+      "configuration": {
+        "endian": "little"
+      }
+    },
+    {
+      "name": "zstd",
+      "configuration": {
+        "level": 0,
+        "checksum": false
+      }
+    }
+  ],
+  "attributes": {
+    "long_name": "4xDaily Air temperature at sigma level 995",
+    "units": "degK",
+    "precision": 2,
+    "GRIB_id": 11,
+    "GRIB_name": "TMP",
+    "var_desc": "Air temperature",
+    "dataset": "NMC Reanalysis",
+    "level_desc": "Surface",
+    "statistic": "Individual Obs",
+    "parent_stat": "Other",
+    "actual_range": [
+      185.16000366210938,
+      322.1000061035156
+    ],
+    "scale_factor": 0.01
+  },
+  "dimension_names": [
+    "time",
+    "lat",
+    "lon"
+  ],
+  "zarr_format": 3,
+  "node_type": "array",
+  "storage_transformers": []
+}
\ No newline at end of file
diff --git a/examples/air_temperature.zarr/lat/zarr.json b/examples/air_temperature.zarr/lat/zarr.json
new file mode 100644
index 00000000..25471895
--- /dev/null
+++ b/examples/air_temperature.zarr/lat/zarr.json
@@ -0,0 +1,49 @@
+{
+  "shape": [
+    25
+  ],
+  "data_type": "float32",
+  "chunk_grid": {
+    "name": "regular",
+    "configuration": {
+      "chunk_shape": [
+        25
+      ]
+    }
+  },
+  "chunk_key_encoding": {
+    "name": "default",
+    "configuration": {
+      "separator": "/"
+    }
+  },
+  "fill_value": 0.0,
+  "codecs": [
+    {
+      "name": "bytes",
+      "configuration": {
+        "endian": "little"
+      }
+    },
+    {
+      "name": "zstd",
+      "configuration": {
+        "level": 0,
+        "checksum": false
+      }
+    }
+  ],
+  "attributes": {
+    "standard_name": "latitude",
+    "long_name": "Latitude",
+    "units": "degrees_north",
+    "axis": "Y",
+    "_FillValue": "AAAAAAAA+H8="
+  },
+  "dimension_names": [
+    "lat"
+  ],
+  "zarr_format": 3,
+  "node_type": "array",
+  "storage_transformers": []
+}
\ No newline at end of file
diff --git a/examples/air_temperature.zarr/lon/zarr.json b/examples/air_temperature.zarr/lon/zarr.json
new file mode 100644
index 00000000..cee3ca99
--- /dev/null
+++ b/examples/air_temperature.zarr/lon/zarr.json
@@ -0,0 +1,49 @@
+{
+  "shape": [
+    53
+  ],
+  "data_type": "float32",
+  "chunk_grid": {
+    "name": "regular",
+    "configuration": {
+      "chunk_shape": [
+        53
+      ]
+    }
+  },
+  "chunk_key_encoding": {
+    "name": "default",
+    "configuration": {
+      "separator": "/"
+    }
+  },
+  "fill_value": 0.0,
+  "codecs": [
+    {
+      "name": "bytes",
+      "configuration": {
+        "endian": "little"
+      }
+    },
+    {
+      "name": "zstd",
+      "configuration": {
+        "level": 0,
+        "checksum": false
+      }
+    }
+  ],
+  "attributes": {
+    "standard_name": "longitude",
+    "long_name": "Longitude",
+    "units": "degrees_east",
+    "axis": "X",
+    "_FillValue": "AAAAAAAA+H8="
+  },
+  "dimension_names": [
+    "lon"
+  ],
+  "zarr_format": 3,
+  "node_type": "array",
+  "storage_transformers": []
+}
\ No newline at end of file
diff --git a/examples/air_temperature.zarr/time/zarr.json b/examples/air_temperature.zarr/time/zarr.json
new file mode 100644
index 00000000..56d5451b
--- /dev/null
+++ b/examples/air_temperature.zarr/time/zarr.json
@@ -0,0 +1,49 @@
+{
+  "shape": [
+    2920
+  ],
+  "data_type": "float32",
+  "chunk_grid": {
+    "name": "regular",
+    "configuration": {
+      "chunk_shape": [
+        2920
+      ]
+    }
+  },
+  "chunk_key_encoding": {
+    "name": "default",
+    "configuration": {
+      "separator": "/"
+    }
+  },
+  "fill_value": 0.0,
+  "codecs": [
+    {
+      "name": "bytes",
+      "configuration": {
+        "endian": "little"
+      }
+    },
+    {
+      "name": "zstd",
+      "configuration": {
+        "level": 0,
+        "checksum": false
+      }
+    }
+  ],
+  "attributes": {
+    "standard_name": "time",
+    "long_name": "Time",
+    "units": "hours since 1800-01-01",
+    "calendar": "standard",
+    "_FillValue": "AAAAAAAA+H8="
+  },
+  "dimension_names": [
+    "time"
+  ],
+  "zarr_format": 3,
+  "node_type": "array",
+  "storage_transformers": []
+}
\ No newline at end of file
diff --git a/examples/air_temperature.zarr/zarr.json b/examples/air_temperature.zarr/zarr.json
new file mode 100644
index 00000000..12cd835c
--- /dev/null
+++ b/examples/air_temperature.zarr/zarr.json
@@ -0,0 +1,11 @@
+{
+  "attributes": {
+    "Conventions": "COARDS",
+    "title": "4x daily NMC reanalysis (1948)",
+    "description": "Data is from NMC initialized reanalysis\n(4x/day).  These are the 0.9950 sigma level values.",
+    "platform": "Model",
+    "references": "http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html"
+  },
+  "zarr_format": 3,
+  "node_type": "group"
+}
\ No newline at end of file
diff --git a/examples/example-array/zarr.json b/examples/example-array/zarr.json
new file mode 100644
index 00000000..b6bdc406
--- /dev/null
+++ b/examples/example-array/zarr.json
@@ -0,0 +1,31 @@
+{
+    "zarr_format": 3,
+    "node_type": "array",
+    "shape": [10000, 1000],
+    "dimension_names": ["rows", "columns"],
+    "data_type": "float64",
+    "chunk_grid": {
+        "name": "regular",
+        "configuration": {
+            "chunk_shape": [1000, 100]
+        }
+    },
+    "chunk_key_encoding": {
+        "name": "default",
+        "configuration": {
+            "separator": "/"
+        }
+    },
+    "codecs": [{
+        "name": "bytes",
+        "configuration": {
+            "endian": "little"
+        }
+    }],
+    "fill_value": "NaN",
+    "attributes": {
+        "foo": 42,
+        "bar": "apples",
+        "baz": [1, 2, 3, 4]
+    }
+} 
\ No newline at end of file
diff --git a/examples/example-group/zarr.json b/examples/example-group/zarr.json
new file mode 100644
index 00000000..f1693059
--- /dev/null
+++ b/examples/example-group/zarr.json
@@ -0,0 +1,8 @@
+{
+    "zarr_format": 3,
+    "node_type": "group",
+    "attributes": {
+        "spam": "ham",
+        "eggs": 42
+    }
+} 
\ No newline at end of file
diff --git a/json-schema/array.json b/json-schema/array.json
new file mode 100644
index 00000000..c9d2085a
--- /dev/null
+++ b/json-schema/array.json
@@ -0,0 +1,639 @@
+{
+    "$schema": "https://json-schema.org/draft/2020-12/schema",
+    "$id": "https://zarr-specs.readthedocs.io/v3/json-schema/array.json",
+    "title": "Zarr v3 Array Metadata Schema",
+    "description": "JSON Schema for Zarr v3 Array metadata documents.",
+    "type": "object",
+    "required": [
+        "shape",
+        "data_type",
+        "chunk_grid",
+        "chunk_key_encoding",
+        "fill_value",
+        "codecs",
+        "zarr_format",
+        "node_type"
+    ],
+    "properties": {
+        "zarr_format": {
+            "type": "integer",
+            "const": 3,
+            "description": "Version of the Zarr storage specification"
+        },
+        "node_type": {
+            "type": "string",
+            "const": "array",
+            "description": "Type of hierarchy node element, which must be 'array'."
+        },
+        "shape": {
+            "type": "array",
+            "items": {
+                "type": "integer",
+                "minimum": 0
+            },
+            "description": "Array of integers providing the length of each dimension"
+        },
+        "data_type": {
+            "$ref": "#/$defs/data_type",
+            "description": "Data type of the Zarr array"
+        },
+        "chunk_grid": {
+            "$ref": "#/$defs/chunk_grid",
+            "description": "Chunk grid configuration"
+        },
+        "chunk_key_encoding": {
+            "$ref": "#/$defs/chunk_key_encoding",
+            "description": "Mapping from chunk grid coordinates to storage keys"
+        },
+        "fill_value": {
+            "description": "Fill value for uninitialized portions of the array"
+        },
+        "codecs": {
+            "type": "array",
+            "minItems": 1,
+            "items": {
+                "$ref": "#/$defs/codec"
+            },
+            "description": "List of codecs for encoding and decoding chunks"
+        },
+        "attributes": {
+            "$ref": "#/$defs/attributes",
+            "description": "User-defined metadata"
+        },
+        "storage_transformers": {
+            "type": "array",
+            "items": {
+                "$ref": "#/$defs/storage_transformer"
+            },
+            "description": "List of storage transformers"
+        },
+        "dimension_names": {
+            "type": "array",
+            "items": {
+                "oneOf": [
+                    {
+                        "type": "string"
+                    },
+                    {
+                        "type": "null"
+                    }
+                ]
+            },
+            "description": "Names for each dimension"
+        }
+    },
+    "additionalProperties": {
+        "$ref": "#/$defs/extension_property"
+    },
+    "$defs": {
+        "data_type": {
+            "oneOf": [
+                {
+                    "type": "string",
+                    "enum": [
+                        "bool",
+                        "int8",
+                        "int16",
+                        "int32",
+                        "int64",
+                        "uint8",
+                        "uint16",
+                        "uint32",
+                        "uint64",
+                        "float16",
+                        "float32",
+                        "float64",
+                        "complex64",
+                        "complex128"
+                    ],
+                    "description": "Core data type identifier"
+                },
+                {
+                    "type": "string",
+                    "pattern": "^r[0-9]+$",
+                    "description": "Raw data type (r followed by bit count, multiple of 8; note that the divisibility by 8 is not enforced by the schema)."
+                },
+                {
+                    "$ref": "#/$defs/extension_data_type",
+                    "description": "Extension data type"
+                }
+            ]
+        },
+        "chunk_grid": {
+            "oneOf": [
+                {
+                    "$ref": "#/$defs/regular_chunk_grid"
+                },
+                {
+                    "$ref": "#/$defs/extension_chunk_grid"
+                }
+            ]
+        },
+        "regular_chunk_grid": {
+            "type": "object",
+            "required": [
+                "name",
+                "configuration"
+            ],
+            "properties": {
+                "name": {
+                    "const": "regular"
+                },
+                "configuration": {
+                    "type": "object",
+                    "required": [
+                        "chunk_shape"
+                    ],
+                    "properties": {
+                        "chunk_shape": {
+                            "type": "array",
+                            "items": {
+                                "type": "integer",
+                                "minimum": 0
+                            },
+                            "description": "Shape of each chunk"
+                        }
+                    },
+                    "additionalProperties": false
+                }
+            },
+            "additionalProperties": false
+        },
+        "chunk_key_encoding": {
+            "oneOf": [
+                {
+                    "$ref": "#/$defs/default_chunk_key_encoding"
+                },
+                {
+                    "$ref": "#/$defs/v2_chunk_key_encoding"
+                },
+                {
+                    "$ref": "#/$defs/extension_chunk_key_encoding"
+                }
+            ]
+        },
+        "default_chunk_key_encoding": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "const": "default"
+                },
+                "configuration": {
+                    "type": "object",
+                    "properties": {
+                        "separator": {
+                            "type": "string"
+                        }
+                    },
+                    "additionalProperties": false
+                }
+            },
+            "additionalProperties": false
+        },
+        "v2_chunk_key_encoding": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "type": "string",
+                    "const": "v2"
+                },
+                "configuration": {
+                    "type": "object",
+                    "properties": {
+                        "separator": {
+                            "type": "string",
+                            "enum": [
+                                "/",
+                                "."
+                            ],
+                            "default": "."
+                        }
+                    },
+                    "additionalProperties": false
+                }
+            }
+        },
+        "codec": {
+            "oneOf": [
+                {
+                    "$ref": "#/$defs/blosc_codec"
+                },
+                {
+                    "$ref": "#/$defs/bytes_codec"
+                },
+                {
+                    "$ref": "#/$defs/crc32c_codec"
+                },
+                {
+                    "$ref": "#/$defs/gzip_codec"
+                },
+                {
+                    "$ref": "#/$defs/sharding_codec"
+                },
+                {
+                    "$ref": "#/$defs/zstd_codec"
+                },
+                {
+                    "$ref": "#/$defs/transpose_codec"
+                },
+                {
+                    "$ref": "#/$defs/extension_codec"
+                }
+            ]
+        },
+        "bytes_codec": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "const": "bytes"
+                },
+                "configuration": {
+                    "type": "object",
+                    "properties": {
+                        "endian": {
+                            "type": "string",
+                            "enum": [
+                                "big",
+                                "little"
+                            ],
+                            "description": "Byte order for multi-byte data types"
+                        }
+                    },
+                    "additionalProperties": false
+                }
+            },
+            "additionalProperties": false
+        },
+        "transpose_codec": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "const": "transpose"
+                },
+                "configuration": {
+                    "type": "object",
+                    "required": [
+                        "order"
+                    ],
+                    "properties": {
+                        "order": {
+                            "oneOf": [
+                                {
+                                    "type": "string",
+                                    "enum": [
+                                        "C",
+                                        "F"
+                                    ],
+                                    "deprecated": true,
+                                    "description": "Deprecated in favor of the array of dimension indices."
+                                },
+                                {
+                                    "type": "array",
+                                    "items": {
+                                        "type": "integer",
+                                        "minimum": 0
+                                    }
+                                }
+                            ]
+                        }
+                    },
+                    "additionalProperties": false
+                }
+            },
+            "additionalProperties": false
+        },
+        "blosc_codec": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "const": "blosc"
+                },
+                "configuration": {
+                    "type": "object",
+                    "required": [
+                        "cname",
+                        "clevel",
+                        "shuffle"
+                    ],
+                    "properties": {
+                        "cname": {
+                            "type": "string",
+                            "enum": [
+                                "blosclz",
+                                "lz4",
+                                "lz4hc",
+                                "zlib",
+                                "zstd"
+                            ],
+                            "description": "Compression algorithm"
+                        },
+                        "clevel": {
+                            "type": "integer",
+                            "minimum": 0,
+                            "maximum": 9,
+                            "description": "Compression level"
+                        },
+                        "shuffle": {
+                            "type": "string",
+                            "enum": [
+                                "noshuffle",
+                                "shuffle",
+                                "bitshuffle"
+                            ],
+                            "description": "Shuffle algorithm"
+                        },
+                        "typesize": {
+                            "type": "integer",
+                            "minimum": 1,
+                            "description": "Size in bytes of the data type"
+                        },
+                        "blocksize": {
+                            "type": "integer",
+                            "minimum": 0,
+                            "description": "Block size for compression (0 for automatic)"
+                        }
+                    },
+                    "additionalProperties": false
+                }
+            },
+            "additionalProperties": false
+        },
+        "gzip_codec": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "const": "gzip"
+                },
+                "configuration": {
+                    "type": "object",
+                    "properties": {
+                        "level": {
+                            "type": "integer",
+                            "minimum": 0,
+                            "maximum": 9,
+                            "description": "Compression level"
+                        }
+                    },
+                    "additionalProperties": false
+                }
+            },
+            "additionalProperties": false
+        },
+        "sharding_codec": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "const": "sharding"
+                },
+                "configuration": {
+                    "type": "object",
+                    "properties": {
+                        "chunk_shape": {
+                            "type": "array",
+                            "items": {
+                                "type": "integer",
+                                "minimum": 0
+                            },
+                            "description": "Shape of the inner chunks in a shard along each dimension of the outer array."
+                        },
+                        "codecs": {
+                            "type": "array",
+                            "items": {
+                                "$ref": "#/$defs/codec"
+                            },
+                            "description": "Codecs to use for encoding and decoding inner chunks."
+                        },
+                        "index_codecs": {
+                            "type": "array",
+                            "items": {
+                                "$ref": "#/$defs/codec"
+                            },
+                            "description": "Codecs to use for encoding and decoding index chunks."
+                        },
+                        "index_location": {
+                            "type": "string",
+                            "enum": [
+                                "end",
+                                "start"
+                            ],
+                            "description": "Location of the index chunks in the shard."
+                        }
+                    }
+                }
+            }
+        },
+        "zstd_codec": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "const": "zstd"
+                },
+                "configuration": {
+                    "type": "object",
+                    "properties": {
+                        "level": {
+                            "type": "integer",
+                            "description": "Compression level"
+                        },
+                        "checksum": {
+                            "type": "boolean",
+                            "description": "Whether to include checksum"
+                        }
+                    },
+                    "additionalProperties": false
+                }
+            },
+            "additionalProperties": false
+        },
+        "crc32c_codec": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "const": "crc32c"
+                }
+            },
+            "additionalProperties": false
+        },
+        "storage_transformer": {
+            "$ref": "#/$defs/extension_object",
+            "description": "Storage transformer configuration"
+        },
+        "extension_object": {
+            "type": "object",
+            "required": [
+                "name"
+            ],
+            "properties": {
+                "name": {
+                    "type": "string",
+                    "pattern": "^[a-z][a-z0-9-_.]+$|^[a-zA-Z][a-zA-Z0-9+.-]*:",
+                    "description": "Extension name (registered name or URI)"
+                },
+                "configuration": {
+                    "type": "object",
+                    "description": "Optional configuration object for the extension"
+                },
+                "must_understand": {
+                    "type": "boolean",
+                    "default": true,
+                    "description": "Whether implementations must understand this extension"
+                }
+            },
+            "additionalProperties": false
+        },
+        "extension_data_type": {
+            "allOf": [
+                {
+                    "$ref": "#/$defs/extension_object"
+                },
+                {
+                    "properties": {
+                        "name": {
+                            "type": "string",
+                            "not": {
+                                "anyOf": [
+                                    {
+                                        "enum": [
+                                            "bool",
+                                            "int8",
+                                            "int16",
+                                            "int32",
+                                            "int64",
+                                            "uint8",
+                                            "uint16",
+                                            "uint32",
+                                            "uint64",
+                                            "float16",
+                                            "float32",
+                                            "float64",
+                                            "complex64",
+                                            "complex128"
+                                        ]
+                                    },
+                                    {
+                                        "pattern": "^r[0-9]+$"
+                                    }
+                                ]
+                            }
+                        }
+                    }
+                }
+            ],
+            "description": "Extension data type that must not clash with core data types"
+        },
+        "extension_chunk_key_encoding": {
+            "allOf": [
+                {
+                    "$ref": "#/$defs/extension_object"
+                },
+                {
+                    "properties": {
+                        "name": {
+                            "type": "string",
+                            "not": {
+                                "enum": [
+                                    "default",
+                                    "v2"
+                                ]
+                            }
+                        }
+                    }
+                }
+            ],
+            "description": "Extension chunk key encoding that must not clash with core chunk key encodings"
+        },
+        "extension_codec": {
+            "allOf": [
+                {
+                    "$ref": "#/$defs/extension_object"
+                },
+                {
+                    "properties": {
+                        "name": {
+                            "type": "string",
+                            "not": {
+                                "enum": [
+                                    "bytes",
+                                    "transpose",
+                                    "blosc",
+                                    "gzip",
+                                    "zstd",
+                                    "crc32c"
+                                ]
+                            }
+                        }
+                    }
+                }
+            ],
+            "description": "Extension codec that must not clash with core codecs"
+        },
+        "extension_chunk_grid": {
+            "allOf": [
+                {
+                    "$ref": "#/$defs/extension_object"
+                },
+                {
+                    "properties": {
+                        "name": {
+                            "type": "string",
+                            "not": {
+                                "enum": [
+                                    "regular"
+                                ]
+                            }
+                        }
+                    }
+                }
+            ],
+            "description": "Extension chunk grid that must not clash with core chunk grids"
+        },
+        "extension_property": {
+            "description": "Extension properties that implementations may not understand",
+            "oneOf": [
+                {
+                    "type": "object",
+                    "properties": {
+                        "must_understand": {
+                            "const": false
+                        }
+                    },
+                    "required": [
+                        "must_understand"
+                    ]
+                },
+                true
+            ]
+        },
+        "attributes": {
+            "type": "object",
+            "description": "User-defined metadata as key-value pairs."
+        }
+    }
+}
\ No newline at end of file
diff --git a/json-schema/group.json b/json-schema/group.json
new file mode 100644
index 00000000..6769dbd1
--- /dev/null
+++ b/json-schema/group.json
@@ -0,0 +1,58 @@
+{
+    "$schema": "https://json-schema.org/draft/2020-12/schema",
+    "$id": "https://zarr-specs.readthedocs.io/v3/json-schema/group.json",
+    "title": "Zarr v3 Group Metadata Schema",
+    "description": "JSON Schema for Zarr v3 Group metadata documents.",
+    "type": "object",
+    "required": [
+        "zarr_format",
+        "node_type"
+    ],
+    "properties": {
+        "zarr_format": {
+            "type": "integer",
+            "const": 3,
+            "description": "Version of the Zarr storage specification"
+        },
+        "node_type": {
+            "type": "string",
+            "const": "group",
+            "description": "Type of hierarchy node element, which must be 'group'."
+        },
+        "attributes": {
+            "$ref": "#/$defs/attributes",
+            "description": "User-defined metadata"
+        }
+    },
+    "additionalProperties": {
+        "$ref": "#/$defs/extension_property"
+    },
+    "$defs": {
+        "attributes": {
+            "type": "object",
+            "description": "User-defined metadata as key-value pairs",
+            "patternProperties": {
+                ".*": {
+                    "description": "Arbitrary JSON value for user metadata"
+                }
+            }
+        },
+        "extension_property": {
+            "description": "Extension properties that implementations may not understand",
+            "oneOf": [
+                {
+                    "type": "object",
+                    "properties": {
+                        "must_understand": {
+                            "const": false
+                        }
+                    },
+                    "required": [
+                        "must_understand"
+                    ]
+                },
+                true
+            ]
+        }
+    }
+}
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..2c04f7a4
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,9 @@
+[project]
+name = "zarr-specs"
+version = "0.1.0"
+description = "Add your description here"
+readme = "README.md"
+requires-python = ">=3.13"
+dependencies = [
+    "check-jsonschema>=0.33.0",
+]
diff --git a/scripts/validate-examples.sh b/scripts/validate-examples.sh
new file mode 100755
index 00000000..9d527795
--- /dev/null
+++ b/scripts/validate-examples.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Exit with non-zero status if any command fails, but run all commands first
+set +e  # Don't exit immediately on error
+failed=0
+
+check-jsonschema --schemafile json-schema/array.json examples/example-array/zarr.json
+if [ $? -ne 0 ]; then
+    failed=1
+fi
+
+check-jsonschema --schemafile json-schema/group.json examples/example-group/zarr.json
+if [ $? -ne 0 ]; then
+    failed=1
+fi
+
+check-jsonschema --schemafile json-schema/group.json examples/air_temperature.zarr/zarr.json
+if [ $? -ne 0 ]; then
+    failed=1
+fi
+
+check-jsonschema --schemafile json-schema/array.json examples/air_temperature.zarr/air/zarr.json
+if [ $? -ne 0 ]; then
+    failed=1
+fi
+
+check-jsonschema --schemafile json-schema/array.json examples/air_temperature.zarr/lat/zarr.json
+if [ $? -ne 0 ]; then
+    failed=1
+fi
+
+check-jsonschema --schemafile json-schema/array.json examples/air_temperature.zarr/lon/zarr.json
+if [ $? -ne 0 ]; then
+    failed=1
+fi
+
+check-jsonschema --schemafile json-schema/array.json examples/air_temperature.zarr/time/zarr.json
+if [ $? -ne 0 ]; then
+    failed=1
+fi
+
+if [ $failed -eq 0 ]; then
+    exit 0
+else
+    exit 1
+fi
diff --git a/uv.lock b/uv.lock
new file mode 100644
index 00000000..f3efb17e
--- /dev/null
+++ b/uv.lock
@@ -0,0 +1,249 @@
+version = 1
+revision = 2
+requires-python = ">=3.13"
+
+[[package]]
+name = "attrs"
+version = "25.3.0"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/5a/b0/1367933a8532ee6ff8d63537de4f1177af4bff9f3e829baf7331f595bb24/attrs-25.3.0.tar.gz", hash = "sha256:75d7cefc7fb576747b2c81b4442d4d4a1ce0900973527c011d1030fd3bf4af1b", size = 812032, upload_time = "2025-03-13T11:10:22.779Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/77/06/bb80f5f86020c4551da315d78b3ab75e8228f89f0162f2c3a819e407941a/attrs-25.3.0-py3-none-any.whl", hash = "sha256:427318ce031701fea540783410126f03899a97ffc6f61596ad581ac2e40e3bc3", size = 63815, upload_time = "2025-03-13T11:10:21.14Z" },
+]
+
+[[package]]
+name = "certifi"
+version = "2025.4.26"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/e8/9e/c05b3920a3b7d20d3d3310465f50348e5b3694f4f88c6daf736eef3024c4/certifi-2025.4.26.tar.gz", hash = "sha256:0a816057ea3cdefcef70270d2c515e4506bbc954f417fa5ade2021213bb8f0c6", size = 160705, upload_time = "2025-04-26T02:12:29.51Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/4a/7e/3db2bd1b1f9e95f7cddca6d6e75e2f2bd9f51b1246e546d88addca0106bd/certifi-2025.4.26-py3-none-any.whl", hash = "sha256:30350364dfe371162649852c63336a15c70c6510c2ad5015b21c2345311805f3", size = 159618, upload_time = "2025-04-26T02:12:27.662Z" },
+]
+
+[[package]]
+name = "charset-normalizer"
+version = "3.4.2"
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