Merge pull request #2 from stacchain/write-disk

Write merkle tree json file for data verification
stacchain · Nov 19, 2024 · 14b1d7c · 14b1d7c
2 parents 0f2fb5b + 4335458
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -17,23 +17,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
-## [v0.2.0] - 2024-11-16
+## [v0.3.0] - 2024-11-20
 
 ### Added
 
-- Enhanced collection processing to support nested subdirectories for items [#1](https://github.com/stacchain/stac-merkle-tree-cli/pull/1)
-- Test to ensure `merkle:root` values remain the same whether items are nested or not [#1](https://github.com/stacchain/stac-merkle-tree-cli/pull/1)
+- Merkle tree verification JSON to help Users check the produced merkle values and hierarchical structure of their STAC Catalog post-processing [#2](https://github.com/stacchain/stac-merkle-tree-cli/pull/2)
 
-## [v0.1.1] - 2024-11-16
+## [v0.2.0] - 2024-11-16
 
-### Fixed
+### Added
 
-- fixed incorrect license identifier
+- Enhanced collection processing to support nested subdirectories for items [#1](https://github.com/stacchain/stac-merkle-tree-cli/pull/1)
+- Test to ensure `merkle:root` values remain the same whether items are nested or not [#1](https://github.com/stacchain/stac-merkle-tree-cli/pull/1)
 
 ## [v0.1.0] - 2024-11-16
 
 - first release
 
-[Unreleased]: https://github.com/stacchain/stac-merkle-tree-cli/tree/v0.1.1...main
-[v0.1.1]: https://github.com/stacchain/stac-merkle-tree-cli/tree/v0.1.0...v0.1.1
+[Unreleased]: https://github.com/stacchain/stac-merkle-tree-cli/tree/v0.3.0...main
+[v0.3.0]: https://github.com/stacchain/stac-merkle-tree-cli/tree/v0.2.0...v0.3.0
+[v0.2.0]: https://github.com/stacchain/stac-merkle-tree-cli/tree/v0.1.0...v0.2.0
 [v0.1.0]: https://github.com/stacchain/stac-merkle-tree-cli/tree/v0.1.0
diff --git a/README.md b/README.md
@@ -125,12 +125,18 @@ catalog/
 
 After installing the package, you can use the `stac-merkle-tree-cli` command to compute and add Merkle information to your STAC catalog.
 
-Navigate to the directory containing your catalog.json file and run the command as follows:
-
 ```bash
-stac-merkle-tree-cli path/to/catalog.json
+stac-merkle-tree-cli path/to/catalog_directory [OPTIONS]
 ```
 
+#### Parameters:
+
+- path/to/catalog_directory: (Required) Path to the root directory containing catalog.json.
+
+#### Options:
+
+- --merkle-tree-file TEXT: (Optional) Path to the output Merkle tree structure file. Defaults to merkle_tree.json within the provided catalog_directory.
+
 ### Example
 
 Assuming your directory structure is as follows:
@@ -154,20 +160,20 @@ my_stac_catalog/
 Run the tool:
 
 ```bash
-stac-merkle-tree-cli my_stac_catalog/catalog.json
+stac-merkle-tree-cli my_stac_catalog/
 ```
 
 Expected Output:
 
 ```
 Processed Item: /path/to/my_stac_catalog/collections/collection1/item1.json
-Processed Item: /path/to/my_stac_catalog/collections/collection1/item2.json
+Processed Item: /path/to/my_stac_catalog/collections/collection1/item2/item2.json
 Processed Collection: /path/to/my_stac_catalog/collections/collection1/collection.json
-Processed Item: /path/to/my_stac_catalog/collections/collection2/item1.json
+Processed Item: /path/to/my_stac_catalog/collections/collection2/item1/item1.json
 Processed Item: /path/to/my_stac_catalog/collections/collection2/item2.json
 Processed Collection: /path/to/my_stac_catalog/collections/collection2/collection.json
 Processed Catalog: /path/to/my_stac_catalog/catalog.json
-Merkle info computation and addition completed.
+Merkle tree structure saved to /path/to/my_stac_catalog/merkle_tree.json
 ```
 
 ## Merkle Tree Extension Specification
@@ -203,6 +209,76 @@ All STAC objects processed by this tool will include the Merkle extension URL in
 
 After running the tool, each STAC object will be updated with the appropriate Merkle fields.
 
+### Merkle Tree Structure (merkle_tree.json)
+
+The tool generates a `merkle_tree.json` file that represents the hierarchical Merkle tree of your STAC catalog. Below is an example of the `merkle_tree.json` structure:
+
+```json
+{
+  "node_id": "Catalogue",
+  "type": "Catalog",
+  "merkle:object_hash": "b14fd102417c1d673f481bc053d19946aefdc27d84c584989b23c676c897bd5a",
+  "merkle:root": "2c637f0bae066e89de80839f3468f73e396e9d1498faefc469f0fd1039e19e0c",
+  "children": [
+    {
+      "node_id": "COP-DEM",
+      "type": "Collection",
+      "merkle:object_hash": "17789b31f8ae304de8dbe2350a15263dbf5e31adfc0d17a997e7e55f4cfc2f53",
+      "merkle:root": "2f4aa32184fbe70bd385d5b6b6e6d4ec5eb8b2e43611b441febcdf407c4e0030",
+      "children": [
+        {
+          "node_id": "DEM1_SAR_DGE_30_20101212T230244_20140325T230302_ADS_000000_1jTi",
+          "type": "Item",
+          "merkle:object_hash": "ce9f56e695ab1751b8f0c8d9ef1f1ecedaf04574ec3077e70e7426ec9fc61ea4"
+        }
+      ]
+    },
+    {
+      "node_id": "TERRAAQUA",
+      "type": "Collection",
+      "merkle:object_hash": "6ae6f97edd2994b632b415ff810af38639faa84544aa8a33a88bdf867a649374",
+      "merkle:root": "6ae6f97edd2994b632b415ff810af38639faa84544aa8a33a88bdf867a649374",
+      "children": []
+    },
+    {
+      "node_id": "S2GLC",
+      "type": "Collection",
+      "merkle:object_hash": "84ab0e102924c012d4cf2a3b3e10ed4f768f695001174cfd5d9c75d4335b7a48",
+      "merkle:root": "33631c1a3d9339ffc66b3f3a3eb3de8f558bcabe4900494b55ca17aff851e661",
+      "children": [
+        {
+          "node_id": "S2GLC_T30TWT_2017",
+          "type": "Item",
+          "merkle:object_hash": "3a3803a0dae5dbaf9561aeb4cce2770bf38b5da4b71ca67398fb24d48c43a68f"
+        }
+      ]
+    }
+  ]
+}
+```
+
+#### Structure Explanation:
+
+- **Root Node** (Catalogue):
+  - node_id: Identifier of the Catalog.
+  - type: Specifies that this node is a Catalog.
+  - merkle:object_hash: Hash of the Catalog's metadata.
+  - merkle:root: The Merkle root representing the entire Catalog.
+  - children: Array containing child nodes, which can be Collections or Items.
+- **Child Nodes** (e.g., COP-DEM, TERRAAQUA, S2GLC):
+
+  - node_id: Identifier of the Collection.
+  - type: Specifies that this node is a Collection.
+  - merkle:object_hash: Hash of the Collection's metadata.
+  - merkle:root: The Merkle root representing the Collection, calculated from its children.
+  - children: Array containing child nodes, which can be Items or further sub-Collections.
+
+- **Leaf Nodes** (e.g., DEM1_SAR_DGE_30_20101212T230244_20140325T230302_ADS_000000_1jTi, S2GLC_T30TWT_2017):
+  - node_id: Identifier of the Item.
+  - type: Specifies that this node is an Item.
+  - merkle:object_hash: Hash of the Item's metadata.
+  - No merkle:root or children: As Items are leaf nodes, they do not contain these fields.
+
 ### Catalog (catalog.json)
 
 ```json
@@ -272,3 +348,44 @@ After running the tool, each STAC object will be updated with the appropriate Me
 ## Contributing
 
 Contributions are welcome! If you encounter issues or have suggestions for improvements, please open an issue or submit a pull request on the [GitHub repository](https://github.com/stacchain/stac-merkle-tree-cli).
+
+## Verification Steps
+
+### 1. Run the CLI Tool:
+
+```bash
+stac-merkle-tree-cli path/to/catalog_directory
+```
+
+### 2. Check the Output:
+
+- **Console Output**: You should see logs indicating the processing of Items, Collections, and the Catalog.
+
+```ruby
+Processed Item: /path/to/catalog_directory/collections/collection1/item1.json
+Processed Item: /path/to/catalog_directory/collections/collection1/item2/item2.json
+Processed Collection: /path/to/catalog_directory/collections/collection1/collection.json
+Processed Item: /path/to/catalog_directory/collections/collection2/item1/item1.json
+Processed Item: /path/to/catalog_directory/collections/collection2/item2.json
+Processed Collection: /path/to/catalog_directory/collections/collection2/collection.json
+Processed Catalog: /path/to/catalog_directory/catalog.json
+Merkle tree structure saved to /path/to/catalog_directory/merkle_tree.json
+```
+
+- **Merkle Tree JSON**: Verify that the `merkle_tree.json` (or your specified output file) accurately represents the hierarchical structure of your STAC catalog with correct `merkle:object_hash` and `merkle:root` values.
+
+### 3. Verify Integrity:
+
+- **Catalog**: Ensure that the `catalog.json` now includes `merkle:object_hash`, `merkle:root`, and `merkle:hash_method`.
+
+- **Collections**: Each `collection.json` should include `merkle:object_hash`, `merkle:root`, and `merkle:hash_method`.
+
+- **Items**: Each Item's JSON should have `merkle:object_hash` within the properties field.
+
+### 4. Run Tests:
+
+Ensure that all tests pass by executing:
+
+```bash
+pytest -v
+```
diff --git a/example_catalog/catalog.json b/example_catalog/catalog.json
@@ -55,14 +55,14 @@
   "stac_extensions": [
     "https://stacchain.github.io/merkle-tree/v1.0.0/schema.json"
   ],
-  "merkle:object_hash": "4adf81a9aba90fe1f483ec3bbe7c628309e598239cee45d4aeafa1bc8c767ae6",
-  "merkle:root": "6dcb155aa44f0384cf23af6843fb0505d752b11aaaa0778829889b9d598c176f",
+  "merkle:object_hash": "b14fd102417c1d673f481bc053d19946aefdc27d84c584989b23c676c897bd5a",
+  "merkle:root": "2c637f0bae066e89de80839f3468f73e396e9d1498faefc469f0fd1039e19e0c",
   "merkle:hash_method": {
     "function": "sha256",
     "fields": [
       "*"
     ],
     "ordering": "ascending",
-    "description": "Computed by including the merkle:root of collections and the catalogs own merkle:object_hash."
+    "description": "Computed by including the merkle:root of collections and the catalog's own merkle:object_hash."
   }
 }
diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101212T230244_20140325T230302_ADS_000000_1jTi.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101212T230244_20140325T230302_ADS_000000_1jTi.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-12T23:02:44.000000Z",
     "end_datetime": "2014-03-25T23:03:02.000000Z",
     "start_datetime": "2010-12-12T23:02:44.000000Z",
-    "merkle:object_hash": "32c896520ed1fc38a93e59877cb6a88a5e795721eeae3bf6e7bd29206efb87af"
+    "merkle:object_hash": "ce9f56e695ab1751b8f0c8d9ef1f1ecedaf04574ec3077e70e7426ec9fc61ea4"
   },
   "bbox": [
     99,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101212T230244_20140329T113710_ADS_000000_eAmG.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101212T230244_20140329T113710_ADS_000000_eAmG.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-12T23:02:44.000000Z",
     "end_datetime": "2014-03-29T11:37:10.000000Z",
     "start_datetime": "2010-12-12T23:02:44.000000Z",
-    "merkle:object_hash": "9c6b0b011ec783f4bcdec7c712c2443c3c6eca6d1a0d043842a7c8d587d767c4"
+    "merkle:object_hash": "ac66e07717b56e8421c8fec00b2b300afd49d30a8ec9c6d505df3b0568de9c77"
   },
   "bbox": [
     100,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T103647_20130405T103047_ADS_000000_RHJx.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T103647_20130405T103047_ADS_000000_RHJx.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-15T10:36:47.000000Z",
     "end_datetime": "2013-04-05T10:30:47.000000Z",
     "start_datetime": "2010-12-15T10:36:47.000000Z",
-    "merkle:object_hash": "762a6152760f8d4868e4036b2ad009a948485e2626c51c6db2a506fc2c7e491c"
+    "merkle:object_hash": "39969fd5f4a3a170ff39df8f2c13ebca66aab40890275a94ce798e281b85d54d"
   },
   "bbox": [
     98,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T103647_20130405T103047_ADS_000000_oCX9.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T103647_20130405T103047_ADS_000000_oCX9.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-15T10:36:47.000000Z",
     "end_datetime": "2013-04-05T10:30:47.000000Z",
     "start_datetime": "2010-12-15T10:36:47.000000Z",
-    "merkle:object_hash": "b56b4a839810159bfbcd77fe458bcf12173e796a6750b31399166c67cfd29c33"
+    "merkle:object_hash": "22a31ab988181f280a0bfc6872556ad1d670373bd997f711389d057e1b1f531a"
   },
   "bbox": [
     100,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T203649_20140913T090954_ADS_000000_4KBA.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T203649_20140913T090954_ADS_000000_4KBA.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-15T20:36:49.000000Z",
     "end_datetime": "2014-09-13T09:09:54.000000Z",
     "start_datetime": "2010-12-15T20:36:49.000000Z",
-    "merkle:object_hash": "df89c14ec6017be8ad68b8a51f1152671520a8959c65a7a377cfc2b789f30708"
+    "merkle:object_hash": "3c22648957e7c76f75a9fbfdf7c164e7d745d9e4ebe809db15d2474e01be4764"
   },
   "bbox": [
     135,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T203649_20140913T090954_ADS_000000_Quqd.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T203649_20140913T090954_ADS_000000_Quqd.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-15T20:36:49.000000Z",
     "end_datetime": "2014-09-13T09:09:54.000000Z",
     "start_datetime": "2010-12-15T20:36:49.000000Z",
-    "merkle:object_hash": "7365039727dfa4456a355cd02585e713af706692716bf0b6050c1b8e82e1308f"
+    "merkle:object_hash": "6d16f23e2fe2849ce0316c012e9284b413f7c086a11d6de421c0582b397f513e"
   },
   "bbox": [
     135,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T203914_20121226T204852_ADS_000000_Yjwo.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101215T203914_20121226T204852_ADS_000000_Yjwo.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-15T20:39:14.000000Z",
     "end_datetime": "2012-12-26T20:48:52.000000Z",
     "start_datetime": "2010-12-15T20:39:14.000000Z",
-    "merkle:object_hash": "b2bb980dc3b1d92106f009b6c732b7140533e622f3e06801dedd643eb9a8614c"
+    "merkle:object_hash": "ed99b4348ede45959a9cf471490f0f2c6a106bb4337a46d07d4fc4b4988f099f"
   },
   "bbox": [
     134,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101216T005027_20130331T005208_ADS_000000_J3m5.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101216T005027_20130331T005208_ADS_000000_J3m5.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-16T00:50:27.000000Z",
     "end_datetime": "2013-03-31T00:52:08.000000Z",
     "start_datetime": "2010-12-16T00:50:27.000000Z",
-    "merkle:object_hash": "1d3e8b68bfa0c90b75cbbddec7cccc674ee732d90e83dcb2afa7b97958096626"
+    "merkle:object_hash": "90a0e5265d02fd58ab81437d14ef1c318ec1b86167ac935d6abb598602798690"
   },
   "bbox": [
     -111,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101216T005027_20130411T005216_ADS_000000_Hbh2.json b/.../collections/COP-DEM/DEM1_SAR_DGE_30_20101216T005027_20130411T005216_ADS_000000_Hbh2.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-16T00:50:27.000000Z",
     "end_datetime": "2013-04-11T00:52:16.000000Z",
     "start_datetime": "2010-12-16T00:50:27.000000Z",
-    "merkle:object_hash": "4543f10e43c01172bfa78b0a822c5619e4d7cd6b711475355930ade977c92d23"
+    "merkle:object_hash": "176a6f0026a763a85909d64d3eeac37873cd7c970fae685a6f37bd16d806b3fe"
   },
   "bbox": [
     -112,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_90_20101212T102356_20130709T103701_ADS_000000_6275.json b/.../collections/COP-DEM/DEM1_SAR_DGE_90_20101212T102356_20130709T103701_ADS_000000_6275.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-12T10:24:16.000000Z",
     "end_datetime": "2010-12-12T10:24:17.000000Z",
     "start_datetime": "2010-12-12T10:24:16.000000Z",
-    "merkle:object_hash": "c3c057f15200da00d392d8608a77190019a06c092bd7814670c3426653e1ca78"
+    "merkle:object_hash": "ffaee98a244aaad0f970100f0f3b11bf3ffd3f5de74fa473ed86cc851c73dbc9"
   },
   "bbox": [
     -72,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DGE_90_20101212T102356_20130709T103701_ADS_000000_8521.json b/.../collections/COP-DEM/DEM1_SAR_DGE_90_20101212T102356_20130709T103701_ADS_000000_8521.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-12T10:24:18.000000Z",
     "end_datetime": "2010-12-12T10:24:19.000000Z",
     "start_datetime": "2010-12-12T10:24:18.000000Z",
-    "merkle:object_hash": "8c1277ae875d680ba189a884e63cd66ed9ac0c94b2ba5eb55d3ae11847814f6d"
+    "merkle:object_hash": "6d7dca89eec5da5e31023b7e24b9527e33a021099c8e74791ecda860f96091ab"
   },
   "bbox": [
     -72,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DTE_30_20101215T203649_20140913T090954_ADS_000000_kipX.json b/.../collections/COP-DEM/DEM1_SAR_DTE_30_20101215T203649_20140913T090954_ADS_000000_kipX.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-15T20:36:49.000000Z",
     "end_datetime": "2014-09-13T09:09:54.000000Z",
     "start_datetime": "2010-12-15T20:36:49.000000Z",
-    "merkle:object_hash": "ded2686d7956fde26b4941fd1a4294d7822f54bd7bf21f6275eff176484757db"
+    "merkle:object_hash": "88f4d9bb5b1512f214f1ca60e6ff2bac28640fd0a00339d01c453b6db9fd7f88"
   },
   "bbox": [
     135,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DTE_30_20101215T203914_20130404T204908_ADS_000000_CURF.json b/.../collections/COP-DEM/DEM1_SAR_DTE_30_20101215T203914_20130404T204908_ADS_000000_CURF.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-15T20:39:14.000000Z",
     "end_datetime": "2013-04-04T20:49:08.000000Z",
     "start_datetime": "2010-12-15T20:39:14.000000Z",
-    "merkle:object_hash": "e6f9dfc50f4bda3d7d07448d15e6528cb34b1d64f5a95ac77058004356afe2d8"
+    "merkle:object_hash": "457aa1fbc4005627077b55cd673a4457f2afc8a15ef3b776af8df60e60e8e1ab"
   },
   "bbox": [
     133,

diff --git a/.../collections/COP-DEM/DEM1_SAR_DTE_30_20101216T100443_20140415T214254_ADS_000000_9Wqx.json b/.../collections/COP-DEM/DEM1_SAR_DTE_30_20101216T100443_20140415T214254_ADS_000000_9Wqx.json
@@ -43,7 +43,7 @@
     "datetime": "2010-12-16T10:04:43.000000Z",
     "end_datetime": "2014-04-15T21:42:54.000000Z",
     "start_datetime": "2010-12-16T10:04:43.000000Z",
-    "merkle:object_hash": "da40bec7fb828698829f9b69bcf2c926a8f7967044bc15cf049335bfa2bded3a"
+    "merkle:object_hash": "e7b65b76ed20f947d8a2b4ae126b832d9f07fb18822863556c9fa0ac40dae873"
   },
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@@ -43,7 +43,7 @@
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diff --git a/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101212T084914_20130418T085214_ADS_000000_5545.json b/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101212T084914_20130418T085214_ADS_000000_5545.json
@@ -43,7 +43,7 @@
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diff --git a/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101212T084914_20140212T212323_ADS_000000_1370.json b/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101212T084914_20140212T212323_ADS_000000_1370.json
@@ -43,7 +43,7 @@
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diff --git a/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101212T102356_20130628T103333_ADS_000000_1705.json b/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101212T102356_20130628T103333_ADS_000000_1705.json
@@ -43,7 +43,7 @@
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diff --git a/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101213T034716_20130408T035028_ADS_000000_5033.json b/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101213T034716_20130408T035028_ADS_000000_5033.json
@@ -43,7 +43,7 @@
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diff --git a/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101217T224141_20140127T121413_ADS_000000_0611.json b/.../collections/COP-DEM/DEM1_SAR_DTE_90_20101217T224141_20140127T121413_ADS_000000_0611.json
@@ -43,7 +43,7 @@
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