diff --git a/packages/bitcore-wallet-service/src/bws.ts b/packages/bitcore-wallet-service/src/bws.ts
index 6eec71b872..ab7dd76e40 100755
--- a/packages/bitcore-wallet-service/src/bws.ts
+++ b/packages/bitcore-wallet-service/src/bws.ts
@@ -34,6 +34,8 @@ if (config.https) {
       fs.readFileSync(config.CAinter2),
       fs.readFileSync(config.CAroot)
     ];
+  } else if (config.certificateAuthorities) {
+    serverOpts.ca = config.certificateAuthorities.map(caPath => fs.readFileSync(caPath));
   }
 }
 
diff --git a/packages/bitcore-wallet-service/src/lib/common/utils.ts b/packages/bitcore-wallet-service/src/lib/common/utils.ts
index 83b13f34f0..af75330135 100644
--- a/packages/bitcore-wallet-service/src/lib/common/utils.ts
+++ b/packages/bitcore-wallet-service/src/lib/common/utils.ts
@@ -365,6 +365,12 @@ export const Utils = {
     return 'testnet';
   },
 
+  getAddressNetworkForDbLookup(address, network) {
+    const generic = Utils.getGenericName(network);
+    if (generic === 'livenet') return address;
+    return `${address}:${generic}`;
+  },
+
   castToBool(input: any) {
     input = input?.toString();
     if (input?.toLowerCase() === 'true' || input == '1') {
diff --git a/packages/bitcore-wallet-service/src/lib/model/txproposal.ts b/packages/bitcore-wallet-service/src/lib/model/txproposal.ts
index bc5e7c24a2..7b3c290b17 100644
--- a/packages/bitcore-wallet-service/src/lib/model/txproposal.ts
+++ b/packages/bitcore-wallet-service/src/lib/model/txproposal.ts
@@ -424,16 +424,20 @@ export class TxProposal implements ITxProposal {
   }
 
   getCurrentSignatures() {
-    const acceptedActions = _.filter(this.actions, a => {
-      return a.type == 'accept';
-    });
-
-    return _.map(acceptedActions, x => {
-      return {
-        signatures: x.signatures,
-        xpub: x.xpub
-      };
-    });
+    const acceptedActions = this.actions.filter(a => a.type == 'accept');
+
+    const uniqueXpubs = new Set();
+    const signatures = [];
+    for (const a of acceptedActions) {
+      // TSS will have multiple accept actions with the same xpub/signature (different copayerIds)
+      if (uniqueXpubs.has(a.xpub)) continue;
+      uniqueXpubs.add(a.xpub);
+      signatures.push({
+        signatures: a.signatures,
+        xpub: a.xpub
+      });
+    }
+    return signatures;
   }
 
   getRawTx() {
diff --git a/packages/bitcore-wallet-service/src/lib/server.ts b/packages/bitcore-wallet-service/src/lib/server.ts
index ea8dc4162f..f8b1e4d297 100644
--- a/packages/bitcore-wallet-service/src/lib/server.ts
+++ b/packages/bitcore-wallet-service/src/lib/server.ts
@@ -1,3 +1,4 @@
+import util from 'util';
 import {
   BitcoreLib as Bitcore,
   BitcoreLibCash as BitcoreCash,
@@ -3340,9 +3341,9 @@ export class WalletService implements IWalletService {
           
 
           const copayer = wallet.getCopayer(this.copayerId);
+          const xPubKey = wallet.tssKeyId ? wallet.clientDerivedPublicKey : copayer.xPubKey;
 
           try {
-            const xPubKey = wallet.tssKeyId ? wallet.clientDerivedPublicKey : copayer.xPubKey;
             if (!txp.sign(this.copayerId, opts.signatures, xPubKey)) {
               this.logw('Error signing transaction (BAD_SIGNATURES)');
               this.logw('Client version:', this.clientVersion);
@@ -3357,6 +3358,27 @@ export class WalletService implements IWalletService {
             return cb(ex);
           }
 
+          if (wallet.tssKeyId) {
+            try {
+              // Add the other copayers to the txp.copayers array
+              // so the client can see who participated in the signing.
+              const addrDbString = Utils.getAddressNetworkForDbLookup(txp.from || txp.inputs[0]?.address, wallet.network);
+              const address = await util.promisify(storage.fetchAddressByWalletId).call(storage, wallet.id, addrDbString);
+              const tssSigSeshId = `${txp.id}:${address.path.replace(/\//g, '-')}`;
+              const tssSigSession = await storage.fetchTssSigSession({ id: tssSigSeshId });
+              if (!tssSigSession) {
+                throw new Error('TSS signature session not found');
+              }
+              const copayerIds = tssSigSession.participants.map(p => p.copayerId);
+              for (const copayerId of copayerIds) {
+                if (copayerId === this.copayerId) continue;
+                txp.addAction(copayerId, 'accept', null, opts.signatures, xPubKey);
+              }
+            } catch (err) {
+              this.logw('Error finding accepting copayers for TSS txp: %o %o', txp.id, err);
+            }
+          }
+
           this.storage.storeTx(this.walletId, txp, err => {
             if (err) return cb(err);
 
diff --git a/packages/bitcore-wallet-service/src/lib/storage.ts b/packages/bitcore-wallet-service/src/lib/storage.ts
index 118837f219..0c6b3787af 100644
--- a/packages/bitcore-wallet-service/src/lib/storage.ts
+++ b/packages/bitcore-wallet-service/src/lib/storage.ts
@@ -166,6 +166,9 @@ export class Storage {
     db.collection(collections.TSS_KEYGEN).createIndex({
       id: 1
     }, { unique: true });
+    db.collection(collections.TSS_SIGN).createIndex({
+      id: 1
+    }, { unique: true });
   }
 
   connect(opts, cb) {