diff --git a/docs/TapTrade_obs/Research/sighash_flags.webp b/docs/TapTrade_obs/Research/sighash_flags.webp
new file mode 100755
index 0000000..9075529
Binary files /dev/null and b/docs/TapTrade_obs/Research/sighash_flags.webp differ
diff --git a/taptrade_api_mockoon.json b/taptrade_api_mockoon.json
new file mode 100644
index 0000000..00e89f7
--- /dev/null
+++ b/taptrade_api_mockoon.json
@@ -0,0 +1,92 @@
+{
+  "uuid": "7f0e6404-7297-4249-acc9-aabb8c8257ca",
+  "lastMigration": 32,
+  "name": "Taptrade api",
+  "endpointPrefix": "",
+  "latency": 0,
+  "port": 3001,
+  "hostname": "",
+  "folders": [],
+  "routes": [
+    {
+      "uuid": "7cdc672a-d43a-41f2-a10b-630306bf1d03",
+      "type": "http",
+      "documentation": "Receives OrderRequest Json and returns OfferCreationResponse on success",
+      "method": "post",
+      "endpoint": "create-offer",
+      "responses": [
+        {
+          "uuid": "a746f8e0-fdda-4086-b3a3-1bf65ba7bdb3",
+          "body": "{\n  \"locking_address\": \"bc1xxx\",\n  \"locking_amount\": 69420\n}",
+          "latency": 0,
+          "statusCode": 200,
+          "label": "",
+          "headers": [],
+          "bodyType": "INLINE",
+          "filePath": "",
+          "databucketID": "",
+          "sendFileAsBody": false,
+          "rules": [],
+          "rulesOperator": "OR",
+          "disableTemplating": false,
+          "fallbackTo404": false,
+          "default": true,
+          "crudKey": "id",
+          "callbacks": []
+        }
+      ],
+      "responseMode": null
+    }
+  ],
+  "rootChildren": [
+    {
+      "type": "route",
+      "uuid": "7cdc672a-d43a-41f2-a10b-630306bf1d03"
+    }
+  ],
+  "proxyMode": false,
+  "proxyHost": "",
+  "proxyRemovePrefix": false,
+  "tlsOptions": {
+    "enabled": false,
+    "type": "CERT",
+    "pfxPath": "",
+    "certPath": "",
+    "keyPath": "",
+    "caPath": "",
+    "passphrase": ""
+  },
+  "cors": true,
+  "headers": [
+    {
+      "key": "Content-Type",
+      "value": "application/json"
+    },
+    {
+      "key": "Access-Control-Allow-Origin",
+      "value": "*"
+    },
+    {
+      "key": "Access-Control-Allow-Methods",
+      "value": "GET,POST,PUT,PATCH,DELETE,HEAD,OPTIONS"
+    },
+    {
+      "key": "Access-Control-Allow-Headers",
+      "value": "Content-Type, Origin, Accept, Authorization, Content-Length, X-Requested-With"
+    }
+  ],
+  "proxyReqHeaders": [
+    {
+      "key": "",
+      "value": ""
+    }
+  ],
+  "proxyResHeaders": [
+    {
+      "key": "",
+      "value": ""
+    }
+  ],
+  "data": [],
+  "callbacks": []
+}
\ No newline at end of file