diff --git a/README.md b/README.md
index 3e140e8a..f47d8a33 100644
--- a/README.md
+++ b/README.md
@@ -175,9 +175,9 @@ When updating Build container/SDK/Speculos you want to change SDK parameter in s
 To modify the list of transaction known by Ledger, do the following:
 
 1. Add/modify the manifest files in `transaction_metadata` directory, modify the script to include new files.
-2. Copy the resulting `txMerkleTree.js` file to `js/src`.
+2. Copy the resulting `txMerkleTree.js` file to `js/src`. Re-build js and re-install speculos (to include newly build js).
 3. Take the top level hash from `txMerkleTree.js`  and move it to `merkleTreeRoot` variable of `app/src/tx_metadata.c` (you need to split the hex into C array of uint8_t's).
-4. Copy the resulting `txMerkleTree.js` file to `test/generate-transaction-tests` and regenerate the tests (important for C++ unit tests).
+4. Copy the resulting `txMerkleTree.js` file to `test/generate-transaction-tests` and regenerate the tests.
 5. You may want to modify the manifest for integration testing to include newly added changes into integration tests.
 
 This process will have to change slightly in the feature to support backward compatibility of JS.
diff --git a/app/src/tx_metadata.c b/app/src/tx_metadata.c
index dc682397..57701b60 100644
--- a/app/src/tx_metadata.c
+++ b/app/src/tx_metadata.c
@@ -19,7 +19,7 @@ struct {
 } txMetadataState;
 
 static const uint8_t merkleTreeRoot[METADATA_HASH_SIZE] = {
-    0x71, 0xb3, 0xf3, 0x72, 0x5f, 0xbb, 0x0f, 0x2d, 0x59, 0x3d, 0xd6, 0x45, 0x70, 0xef, 0xe7, 0x5f, 0x55, 0x61, 0x87, 0x36, 0x6c, 0x19, 0xba, 0x94, 0x27, 0x24, 0x74, 0xe8, 0x0e, 0xea, 0x78, 0x5e,
+  0xfe, 0x82, 0x42, 0x09, 0x59, 0x87, 0x58, 0x26, 0xf6, 0xa6, 0x17, 0x95, 0x9b, 0x00, 0x6c, 0x31, 0xfa, 0x89, 0x75, 0xe4, 0x55, 0xdb, 0xf2, 0x49, 0x4f, 0x5f, 0xf3, 0x74, 0x0a, 0x1e, 0xce, 0x51,
 };
 
 parser_error_t _validateHash(const uint8_t scriptHash[METADATA_HASH_SIZE], const uint8_t *txMetadata, uint16_t txMetadataLength) {
diff --git a/js/src/txMerkleTree.js b/js/src/txMerkleTree.js
index 46a112f7..43a72745 100644
--- a/js/src/txMerkleTree.js
+++ b/js/src/txMerkleTree.js
@@ -1,11 +1,11 @@
 export const merkleTree = {
-  "hash": "71b3f3725fbb0f2d593dd64570efe75f556187366c19ba94272474e80eea785e",
+  "hash": "fe82420959875826f6a617959b006c31fa8975e455dbf2494f5ff3740a1ece51",
   "children": [
     {
-      "hash": "6edc3a498a77648f820dc3b2d563f74314480e8569c4efbcd69c600f59cec2d0",
+      "hash": "9053a0e87b7e66413b6552205fa31f3c2ed42cdb97bd3d543a130aebb29dda1e",
       "children": [
         {
-          "hash": "d6f168b2ac8da11c1a93cc44fd3126eeb7fbd7046a11cd664fd4eafb51502e77",
+          "hash": "07ea7f7407fda8657a35aeb24075cc654b9f06ae61d6cd1a772920ee3c6209a1",
           "children": [
             {
               "hash": "aa44049d7eb26d667c3714b8fcf78380878e658e22268510ff9f72e69b29decd",
@@ -55,30 +55,30 @@ export const merkleTree = {
               ]
             },
             {
-              "hash": "969676717f03d5697f4d83eda34ad3ae02eb547ac971f0a0b4e118d32db6ef73",
+              "hash": "a0affd7f78688c482a5a5bc416fa49f5844288fc61b0ee1b40cd38e3c2fbeb36",
               "children": [
                 {
-                  "hash": "c599e4e4e494601f528d18cef04be3bc30bb11f4414fe8acf5f3d2c24c18ffa4",
+                  "hash": "099d7e6cfa53ac9150cc79588f5282d3f7bb21a7fb0596ccfcf47bcb380b0fe1",
                   "children": [
-                    "02f47efa834bc0559afae9a660b2efefddd0c6dc6e1bbcf9c3994e45ea9e5135ec99997236b6d76caa298331d5cef77cbdf83c1af64584ece537a780ba4ac468835265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574776f726b696e6720416464726573730002537472696e670003014e6574776f726b696e67204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075626c6963204b6579730006537472696e670003"
+                    "02f47efa834bc0559afae9a660b2efefddd0c6dc6e1bbcf9c3994e45ea9e5135ec99997236b6d76caa298331d5cef77cbdf83c1af64584ece537a780ba4ac468835265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075622e204b65790006537472696e670003"
                   ]
                 },
                 {
-                  "hash": "126ade9922b615139acc57f8869d2a34da18f47282697e68d5464c0f2f477f04",
+                  "hash": "2b5f06235697099c02556240d18fcad69e9a48594d75036edff5d0d875ec746e",
                   "children": [
-                    "029246ec9b7a5c81151156e7c2f6d356f68b1b884f88728daca46b968d9a46cd5a79de7119aea61bdafb39cc3d1f4fa17ca802c2732726a86d2c636dbc19808b685265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574776f726b696e6720416464726573730002537472696e670003014e6574776f726b696e67204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075626c6963204b6579730006537472696e670003"
+                    "029246ec9b7a5c81151156e7c2f6d356f68b1b884f88728daca46b968d9a46cd5a79de7119aea61bdafb39cc3d1f4fa17ca802c2732726a86d2c636dbc19808b685265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075622e204b65790006537472696e670003"
                   ]
                 },
                 {
-                  "hash": "0daf07bbd270140381727a86d2083b0ead03833dc89787dfa65eeafd83ec9ced",
+                  "hash": "ae90b6bab2a077c5d5e3d052fc78908e251e97cfd9407c35bf49a8d284acd3c6",
                   "children": [
-                    "02e79df145af42488e3da1d1b2e50a38a2084229896d670884f278a2119dc3bf9ec2442b498eea025099815ea613d6407407192dc12ad70e1a4f47936db804a841437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075626c6963204b6579730001537472696e670003"
+                    "02e79df145af42488e3da1d1b2e50a38a2084229896d670884f278a2119dc3bf9ec2442b498eea025099815ea613d6407407192dc12ad70e1a4f47936db804a841437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075622e204b65790001537472696e670003"
                   ]
                 },
                 {
-                  "hash": "6f64fc0cb8fc46e800e170a6eb16d3a0ad1a148e374ed125b6888c2720331078",
+                  "hash": "60232ddb87d93f0a82735425ae06661d752b45345ab36a2805147f02d86ab779",
                   "children": [
-                    "0286c69d731560f3bff549c5f180eb4219bfe650ae4efec8e0c5b5ad3ebed54a92dd3b327b09087ea7f8e92a22a6b04a3c6ca33b868b430c4f15f251658c38c1b7437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075626c6963204b6579730001537472696e670003"
+                    "0286c69d731560f3bff549c5f180eb4219bfe650ae4efec8e0c5b5ad3ebed54a92dd3b327b09087ea7f8e92a22a6b04a3c6ca33b868b430c4f15f251658c38c1b7437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075622e204b65790001537472696e670003"
                   ]
                 },
                 {
@@ -149,7 +149,7 @@ export const merkleTree = {
               ]
             },
             {
-              "hash": "17009ee11f842f7783df52789f4ecaf8d689eb878a053167b43302678f4cd224",
+              "hash": "d0b4592fc4f996b16fea83ab8dede757ea8bc270f4e1fbf2301e02fd38d175e3",
               "children": [
                 {
                   "hash": "08b2978dff804b0a39bb3b382a0d0e02fa7977297aab0cafcbcca6324fb7c97f",
@@ -176,9 +176,9 @@ export const merkleTree = {
                   ]
                 },
                 {
-                  "hash": "9f6ac055178275e9fabcba63ac9f9aa36cfb3e54221c8cda3c68a2f7832ea179",
+                  "hash": "14b699e967e1fe928a4e3d49ceadbfad9f6a2bc84a8498cd0a643f2df8fd6ca5",
                   "children": [
-                    "02b6a3502d2205eb05ec18772c13b91cc88a056b325c2617c57948d38cab8db600b64e0e3ed9eb28789198f2b0437f55f750bfa76da99450f63be6543bde66122a5265676973746572204e6f64650006014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574776f726b696e6720416464726573730002537472696e670003014e6574776f726b696e67204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e7400055546697836340003"
+                    "02b6a3502d2205eb05ec18772c13b91cc88a056b325c2617c57948d38cab8db600b64e0e3ed9eb28789198f2b0437f55f750bfa76da99450f63be6543bde66122a5265676973746572204e6f64650006014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e7400055546697836340003"
                   ]
                 },
                 {
diff --git a/tests/generate-transaction-tests/txMerkleTree.js b/tests/generate-transaction-tests/txMerkleTree.js
index 46a112f7..43a72745 100644
--- a/tests/generate-transaction-tests/txMerkleTree.js
+++ b/tests/generate-transaction-tests/txMerkleTree.js
@@ -1,11 +1,11 @@
 export const merkleTree = {
-  "hash": "71b3f3725fbb0f2d593dd64570efe75f556187366c19ba94272474e80eea785e",
+  "hash": "fe82420959875826f6a617959b006c31fa8975e455dbf2494f5ff3740a1ece51",
   "children": [
     {
-      "hash": "6edc3a498a77648f820dc3b2d563f74314480e8569c4efbcd69c600f59cec2d0",
+      "hash": "9053a0e87b7e66413b6552205fa31f3c2ed42cdb97bd3d543a130aebb29dda1e",
       "children": [
         {
-          "hash": "d6f168b2ac8da11c1a93cc44fd3126eeb7fbd7046a11cd664fd4eafb51502e77",
+          "hash": "07ea7f7407fda8657a35aeb24075cc654b9f06ae61d6cd1a772920ee3c6209a1",
           "children": [
             {
               "hash": "aa44049d7eb26d667c3714b8fcf78380878e658e22268510ff9f72e69b29decd",
@@ -55,30 +55,30 @@ export const merkleTree = {
               ]
             },
             {
-              "hash": "969676717f03d5697f4d83eda34ad3ae02eb547ac971f0a0b4e118d32db6ef73",
+              "hash": "a0affd7f78688c482a5a5bc416fa49f5844288fc61b0ee1b40cd38e3c2fbeb36",
               "children": [
                 {
-                  "hash": "c599e4e4e494601f528d18cef04be3bc30bb11f4414fe8acf5f3d2c24c18ffa4",
+                  "hash": "099d7e6cfa53ac9150cc79588f5282d3f7bb21a7fb0596ccfcf47bcb380b0fe1",
                   "children": [
-                    "02f47efa834bc0559afae9a660b2efefddd0c6dc6e1bbcf9c3994e45ea9e5135ec99997236b6d76caa298331d5cef77cbdf83c1af64584ece537a780ba4ac468835265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574776f726b696e6720416464726573730002537472696e670003014e6574776f726b696e67204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075626c6963204b6579730006537472696e670003"
+                    "02f47efa834bc0559afae9a660b2efefddd0c6dc6e1bbcf9c3994e45ea9e5135ec99997236b6d76caa298331d5cef77cbdf83c1af64584ece537a780ba4ac468835265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075622e204b65790006537472696e670003"
                   ]
                 },
                 {
-                  "hash": "126ade9922b615139acc57f8869d2a34da18f47282697e68d5464c0f2f477f04",
+                  "hash": "2b5f06235697099c02556240d18fcad69e9a48594d75036edff5d0d875ec746e",
                   "children": [
-                    "029246ec9b7a5c81151156e7c2f6d356f68b1b884f88728daca46b968d9a46cd5a79de7119aea61bdafb39cc3d1f4fa17ca802c2732726a86d2c636dbc19808b685265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574776f726b696e6720416464726573730002537472696e670003014e6574776f726b696e67204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075626c6963204b6579730006537472696e670003"
+                    "029246ec9b7a5c81151156e7c2f6d356f68b1b884f88728daca46b968d9a46cd5a79de7119aea61bdafb39cc3d1f4fa17ca802c2732726a86d2c636dbc19808b685265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075622e204b65790006537472696e670003"
                   ]
                 },
                 {
-                  "hash": "0daf07bbd270140381727a86d2083b0ead03833dc89787dfa65eeafd83ec9ced",
+                  "hash": "ae90b6bab2a077c5d5e3d052fc78908e251e97cfd9407c35bf49a8d284acd3c6",
                   "children": [
-                    "02e79df145af42488e3da1d1b2e50a38a2084229896d670884f278a2119dc3bf9ec2442b498eea025099815ea613d6407407192dc12ad70e1a4f47936db804a841437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075626c6963204b6579730001537472696e670003"
+                    "02e79df145af42488e3da1d1b2e50a38a2084229896d670884f278a2119dc3bf9ec2442b498eea025099815ea613d6407407192dc12ad70e1a4f47936db804a841437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075622e204b65790001537472696e670003"
                   ]
                 },
                 {
-                  "hash": "6f64fc0cb8fc46e800e170a6eb16d3a0ad1a148e374ed125b6888c2720331078",
+                  "hash": "60232ddb87d93f0a82735425ae06661d752b45345ab36a2805147f02d86ab779",
                   "children": [
-                    "0286c69d731560f3bff549c5f180eb4219bfe650ae4efec8e0c5b5ad3ebed54a92dd3b327b09087ea7f8e92a22a6b04a3c6ca33b868b430c4f15f251658c38c1b7437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075626c6963204b6579730001537472696e670003"
+                    "0286c69d731560f3bff549c5f180eb4219bfe650ae4efec8e0c5b5ad3ebed54a92dd3b327b09087ea7f8e92a22a6b04a3c6ca33b868b430c4f15f251658c38c1b7437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075622e204b65790001537472696e670003"
                   ]
                 },
                 {
@@ -149,7 +149,7 @@ export const merkleTree = {
               ]
             },
             {
-              "hash": "17009ee11f842f7783df52789f4ecaf8d689eb878a053167b43302678f4cd224",
+              "hash": "d0b4592fc4f996b16fea83ab8dede757ea8bc270f4e1fbf2301e02fd38d175e3",
               "children": [
                 {
                   "hash": "08b2978dff804b0a39bb3b382a0d0e02fa7977297aab0cafcbcca6324fb7c97f",
@@ -176,9 +176,9 @@ export const merkleTree = {
                   ]
                 },
                 {
-                  "hash": "9f6ac055178275e9fabcba63ac9f9aa36cfb3e54221c8cda3c68a2f7832ea179",
+                  "hash": "14b699e967e1fe928a4e3d49ceadbfad9f6a2bc84a8498cd0a643f2df8fd6ca5",
                   "children": [
-                    "02b6a3502d2205eb05ec18772c13b91cc88a056b325c2617c57948d38cab8db600b64e0e3ed9eb28789198f2b0437f55f750bfa76da99450f63be6543bde66122a5265676973746572204e6f64650006014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574776f726b696e6720416464726573730002537472696e670003014e6574776f726b696e67204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e7400055546697836340003"
+                    "02b6a3502d2205eb05ec18772c13b91cc88a056b325c2617c57948d38cab8db600b64e0e3ed9eb28789198f2b0437f55f750bfa76da99450f63be6543bde66122a5265676973746572204e6f64650006014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e7400055546697836340003"
                   ]
                 },
                 {
diff --git a/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.07.png b/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.07.png
index 9d9edab4..33c20042 100644
Binary files a/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.07.png and b/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.07.png differ
diff --git a/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.08.png b/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.08.png
index 0da8d0f0..9c1f1495 100644
Binary files a/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.08.png and b/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.08.png differ
diff --git a/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.09.png b/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.09.png
index cf608601..09f6db4d 100644
Binary files a/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.09.png and b/tests_speculos/test-transactions.staking-sign-sco.03-register-node-1-p256-sha3-256/nanos.09.png differ
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diff --git a/tests_speculos/test-transactions.staking-sign-sco.04-create-machine-account-3-p256-sha3-256/nanox.11.png b/tests_speculos/test-transactions.staking-sign-sco.04-create-machine-account-3-p256-sha3-256/nanox.11.png
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diff --git a/tests_speculos/test-transactions.staking-sign-sco.04-create-machine-account-3-p256-sha3-256/nanox.13.png b/tests_speculos/test-transactions.staking-sign-sco.04-create-machine-account-3-p256-sha3-256/nanox.13.png
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diff --git a/tests_speculos/test-transactions.staking-sign-sco.04-create-machine-account-3-p256-sha3-256/nanox.14.png b/tests_speculos/test-transactions.staking-sign-sco.04-create-machine-account-3-p256-sha3-256/nanox.14.png
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diff --git a/tests_speculos/test-transactions.staking-sign-th.06-register-node-p256-sha3-256/nanos.07.png b/tests_speculos/test-transactions.staking-sign-th.06-register-node-p256-sha3-256/nanos.07.png
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diff --git a/tests_speculos/test-transactions.staking-sign-th.06-register-node-p256-sha3-256/nanos.09.png b/tests_speculos/test-transactions.staking-sign-th.06-register-node-p256-sha3-256/nanos.09.png
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index deb7599f..fc817672 100644
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diff --git a/tests_speculos/test-transactions.staking-sign-th.06-register-node-p256-sha3-256/nanox.10.png b/tests_speculos/test-transactions.staking-sign-th.06-register-node-p256-sha3-256/nanox.10.png
index bcd3ca5a..b0c1952a 100644
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diff --git a/tests_speculos/test-transactions.staking-sign-th.06-register-node-p256-sha3-256/nanox.11.png b/tests_speculos/test-transactions.staking-sign-th.06-register-node-p256-sha3-256/nanox.11.png
index a550be10..6c835552 100644
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diff --git a/transaction_metadata/index.js b/transaction_metadata/index.js
index a77a6ab9..946284ca 100644
--- a/transaction_metadata/index.js
+++ b/transaction_metadata/index.js
@@ -20,6 +20,23 @@ const uint8_to_buff = (n) => {
   return buff;
 }
 
+//This is to implement custom rules to make the labels shorter
+const legerifyTxName = (name) => {
+  const txNameTransforms = {
+    "":""
+  }
+  return txNameTransforms[name]?txNameTransforms[name]:name
+}
+
+const legerifyArgLabel = (name) => {
+  const txArgTransforms = {
+    "Networking Address":"Netw. Address",
+    "Networking Key":"Netw. Key",
+    "Public Keys":"Pub. Key",
+  }
+  return txArgTransforms[name]?txArgTransforms[name]:name
+}
+
 const readManifest = (testnetFile, mainnetFile) => {
   const sortFun = (template1, template2) => template1.id > template2.id ? 1 : (template1.id < template2.id ? -1 : 0);
   const testnetTemplates = [...JSON.parse(fs.readFileSync(testnetFile)).templates].sort(sortFun);
@@ -37,7 +54,7 @@ const readManifest = (testnetFile, mainnetFile) => {
       if (arg.type[0] !== '[' && arg.type[arg.type.length-1] !== '?') {
         return Buffer.concat([
           uint8_to_buff(ARGUMENT_TYPE_NORMAL),                            //argument type
-          Buffer.from(arg.label),                                         //argument label
+          Buffer.from(legerifyArgLabel(arg.label)),                       //argument label
           Buffer.from("00", "hex"),                                       //trailing 0
           uint8_to_buff(idx),                                             //order in which should arguments display
           Buffer.from(arg.type),                                          //argument type
@@ -48,7 +65,7 @@ const readManifest = (testnetFile, mainnetFile) => {
       if (arg.type[0] !== '[' && arg.type[arg.type.length-1] === '?') {
         return Buffer.concat([
           uint8_to_buff(ARGUMENT_TYPE_OPTIONAL),                          //argument type
-          Buffer.from(arg.label),                                         //argument label
+          Buffer.from(legerifyArgLabel(arg.label)),                       //argument label
           Buffer.from("00", "hex"),                                       //trailing 0
           uint8_to_buff(idx),                                             //order in which should arguments display
           Buffer.from(arg.type.slice(0, -1)),                             //argument type
@@ -61,7 +78,7 @@ const readManifest = (testnetFile, mainnetFile) => {
           uint8_to_buff(ARGUMENT_TYPE_ARRAY),                             //argument type
           uint8_to_buff(MIN_ARRAY_LENGTH),                                //min array length
           uint8_to_buff(MAX_ARRAY_LENGTH),                                //max array length
-          Buffer.from(arg.label),                                         //argument label
+          Buffer.from(legerifyArgLabel(arg.label)),                       //argument label
           Buffer.from("00", "hex"),                                       //trailing 0
           uint8_to_buff(idx),                                             //order in which should arguments display
           Buffer.from(arg.type.slice(1, -1)),                             //argument type
@@ -74,7 +91,7 @@ const readManifest = (testnetFile, mainnetFile) => {
           uint8_to_buff(ARGUMENT_TYPE_OPTIONALARRAY),                     //argument type
           uint8_to_buff(MIN_ARRAY_LENGTH),                                //min array length
           uint8_to_buff(MAX_ARRAY_LENGTH),                                //max array length
-          Buffer.from(arg.label),                                         //argument label
+          Buffer.from(legerifyArgLabel(arg.label)),                       //argument label
           Buffer.from("00", "hex"),                                       //trailing 0
           uint8_to_buff(idx),                                             //order in which should arguments display
           Buffer.from(arg.type.slice(1, -2)),                             //argument type
@@ -88,7 +105,7 @@ const readManifest = (testnetFile, mainnetFile) => {
       Buffer.from("02", "hex"),                           // number of hashes
       Buffer.from(templateTestnet.hash, "hex"),           // hash testnet
       Buffer.from(templateMainnet.hash, "hex"),           // hash mainnet
-      Buffer.from(templateMainnet.name),                  // transaction name
+      Buffer.from(legerifyTxName(templateMainnet.name)),  // transaction name
       Buffer.from("00", "hex"),                           // trailing 0 after name
       uint8_to_buff(templateMainnet.arguments.length),      // number of arguments
       Buffer.concat(templateMainnet.arguments.map((arg, idx) => processArg(arg, idx))),
diff --git a/transaction_metadata/txMerkleTree.js b/transaction_metadata/txMerkleTree.js
index 46a112f7..43a72745 100644
--- a/transaction_metadata/txMerkleTree.js
+++ b/transaction_metadata/txMerkleTree.js
@@ -1,11 +1,11 @@
 export const merkleTree = {
-  "hash": "71b3f3725fbb0f2d593dd64570efe75f556187366c19ba94272474e80eea785e",
+  "hash": "fe82420959875826f6a617959b006c31fa8975e455dbf2494f5ff3740a1ece51",
   "children": [
     {
-      "hash": "6edc3a498a77648f820dc3b2d563f74314480e8569c4efbcd69c600f59cec2d0",
+      "hash": "9053a0e87b7e66413b6552205fa31f3c2ed42cdb97bd3d543a130aebb29dda1e",
       "children": [
         {
-          "hash": "d6f168b2ac8da11c1a93cc44fd3126eeb7fbd7046a11cd664fd4eafb51502e77",
+          "hash": "07ea7f7407fda8657a35aeb24075cc654b9f06ae61d6cd1a772920ee3c6209a1",
           "children": [
             {
               "hash": "aa44049d7eb26d667c3714b8fcf78380878e658e22268510ff9f72e69b29decd",
@@ -55,30 +55,30 @@ export const merkleTree = {
               ]
             },
             {
-              "hash": "969676717f03d5697f4d83eda34ad3ae02eb547ac971f0a0b4e118d32db6ef73",
+              "hash": "a0affd7f78688c482a5a5bc416fa49f5844288fc61b0ee1b40cd38e3c2fbeb36",
               "children": [
                 {
-                  "hash": "c599e4e4e494601f528d18cef04be3bc30bb11f4414fe8acf5f3d2c24c18ffa4",
+                  "hash": "099d7e6cfa53ac9150cc79588f5282d3f7bb21a7fb0596ccfcf47bcb380b0fe1",
                   "children": [
-                    "02f47efa834bc0559afae9a660b2efefddd0c6dc6e1bbcf9c3994e45ea9e5135ec99997236b6d76caa298331d5cef77cbdf83c1af64584ece537a780ba4ac468835265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574776f726b696e6720416464726573730002537472696e670003014e6574776f726b696e67204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075626c6963204b6579730006537472696e670003"
+                    "02f47efa834bc0559afae9a660b2efefddd0c6dc6e1bbcf9c3994e45ea9e5135ec99997236b6d76caa298331d5cef77cbdf83c1af64584ece537a780ba4ac468835265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075622e204b65790006537472696e670003"
                   ]
                 },
                 {
-                  "hash": "126ade9922b615139acc57f8869d2a34da18f47282697e68d5464c0f2f477f04",
+                  "hash": "2b5f06235697099c02556240d18fcad69e9a48594d75036edff5d0d875ec746e",
                   "children": [
-                    "029246ec9b7a5c81151156e7c2f6d356f68b1b884f88728daca46b968d9a46cd5a79de7119aea61bdafb39cc3d1f4fa17ca802c2732726a86d2c636dbc19808b685265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574776f726b696e6720416464726573730002537472696e670003014e6574776f726b696e67204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075626c6963204b6579730006537472696e670003"
+                    "029246ec9b7a5c81151156e7c2f6d356f68b1b884f88728daca46b968d9a46cd5a79de7119aea61bdafb39cc3d1f4fa17ca802c2732726a86d2c636dbc19808b685265676973746572204e6f64650007014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e74000555466978363400030400035075622e204b65790006537472696e670003"
                   ]
                 },
                 {
-                  "hash": "0daf07bbd270140381727a86d2083b0ead03833dc89787dfa65eeafd83ec9ced",
+                  "hash": "ae90b6bab2a077c5d5e3d052fc78908e251e97cfd9407c35bf49a8d284acd3c6",
                   "children": [
-                    "02e79df145af42488e3da1d1b2e50a38a2084229896d670884f278a2119dc3bf9ec2442b498eea025099815ea613d6407407192dc12ad70e1a4f47936db804a841437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075626c6963204b6579730001537472696e670003"
+                    "02e79df145af42488e3da1d1b2e50a38a2084229896d670884f278a2119dc3bf9ec2442b498eea025099815ea613d6407407192dc12ad70e1a4f47936db804a841437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075622e204b65790001537472696e670003"
                   ]
                 },
                 {
-                  "hash": "6f64fc0cb8fc46e800e170a6eb16d3a0ad1a148e374ed125b6888c2720331078",
+                  "hash": "60232ddb87d93f0a82735425ae06661d752b45345ab36a2805147f02d86ab779",
                   "children": [
-                    "0286c69d731560f3bff549c5f180eb4219bfe650ae4efec8e0c5b5ad3ebed54a92dd3b327b09087ea7f8e92a22a6b04a3c6ca33b868b430c4f15f251658c38c1b7437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075626c6963204b6579730001537472696e670003"
+                    "0286c69d731560f3bff549c5f180eb4219bfe650ae4efec8e0c5b5ad3ebed54a92dd3b327b09087ea7f8e92a22a6b04a3c6ca33b868b430c4f15f251658c38c1b7437265617465204d616368696e65204163636f756e740002014e6f64652049440000537472696e6700030300035075622e204b65790001537472696e670003"
                   ]
                 },
                 {
@@ -149,7 +149,7 @@ export const merkleTree = {
               ]
             },
             {
-              "hash": "17009ee11f842f7783df52789f4ecaf8d689eb878a053167b43302678f4cd224",
+              "hash": "d0b4592fc4f996b16fea83ab8dede757ea8bc270f4e1fbf2301e02fd38d175e3",
               "children": [
                 {
                   "hash": "08b2978dff804b0a39bb3b382a0d0e02fa7977297aab0cafcbcca6324fb7c97f",
@@ -176,9 +176,9 @@ export const merkleTree = {
                   ]
                 },
                 {
-                  "hash": "9f6ac055178275e9fabcba63ac9f9aa36cfb3e54221c8cda3c68a2f7832ea179",
+                  "hash": "14b699e967e1fe928a4e3d49ceadbfad9f6a2bc84a8498cd0a643f2df8fd6ca5",
                   "children": [
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+                    "02b6a3502d2205eb05ec18772c13b91cc88a056b325c2617c57948d38cab8db600b64e0e3ed9eb28789198f2b0437f55f750bfa76da99450f63be6543bde66122a5265676973746572204e6f64650006014e6f64652049440000537472696e670003014e6f646520526f6c65000155496e74380003014e6574772e20416464726573730002537472696e670003014e6574772e204b65790003537472696e670003015374616b696e67204b65790004537472696e67000301416d6f756e7400055546697836340003"
                   ]
                 },
                 {