stratum - fix miner info

MINE/rin/mining_log.txt

@@ -1,10 +1,10 @@
 ================================================================================
 RinCoin Mining Log
 ================================================================================
-Started: 2025-09-23 11:28:19
+Started: 2025-09-23 11:31:27
 Target Address: rin1qahvvv9d5f3443wtckeqavwp9950wacxfmwv20q
 Stratum: 0.0.0.0:3334
 RPC: 127.0.0.1:9556
 ================================================================================
 
-[2025-09-23 11:28:19] 💰 Wallet Balance: 25.00000000 RIN
+[2025-09-23 11:31:27] 💰 Wallet Balance: 25.00000000 RIN

MINE/rin/stratum_proxy.py

@@ -241,6 +241,47 @@ class RinCoinStratumProxy:
             print(f"Merkle root calculation error: {e}")
             return b'\x00' * 32
 
+    def calculate_merkle_branches(self, tx_hashes, tx_index):
+        """Calculate merkle branches for a specific transaction index"""
+        try:
+            if not tx_hashes or tx_index >= len(tx_hashes):
+                return []
+
+            branches = []
+            current_index = tx_index
+
+            # Start with the full list of transaction hashes
+            hashes = tx_hashes[:]
+
+            while len(hashes) > 1:
+                if len(hashes) % 2 == 1:
+                    hashes.append(hashes[-1])  # Duplicate last hash if odd
+
+                # Find the partner for current_index
+                partner_index = current_index ^ 1  # Flip the least significant bit
+
+                if partner_index < len(hashes):
+                    # Add the partner hash to branches (in big-endian for stratum)
+                    branches.append(hashes[partner_index][::-1].hex())
+                else:
+                    # This shouldn't happen, but add the duplicate if it does
+                    branches.append(hashes[current_index][::-1].hex())
+
+                # Move to next level
+                next_level = []
+                for i in range(0, len(hashes), 2):
+                    combined = hashes[i] + hashes[i + 1]
+                    next_level.append(hashlib.sha256(hashlib.sha256(combined).digest()).digest())
+
+                hashes = next_level
+                current_index //= 2
+
+            return branches
+
+        except Exception as e:
+            print(f"Merkle branches calculation error: {e}")
+            return []
+
     def bits_to_target(self, bits_hex):
         """Convert bits to target - FIXED VERSION"""
         try:
@@ -574,12 +615,33 @@ class RinCoinStratumProxy:
     def send_job_to_client(self, client, job):
         """Send mining job to specific client"""
         try:
+            # Build coinbase components for stratum
+            height = job.get('height', 0)
+            height_bytes = struct.pack('<I', height)
+            height_compact = bytes([len(height_bytes.rstrip(b'\x00'))]) + height_bytes.rstrip(b'\x00')
+
+            # coinb1: prefix up to extranonce1 position
+            coinb1 = height_compact + b'/RinCoin/'
+
+            # coinb2: empty (extranonce2 goes at the end)
+            coinb2 = b''
+
+            # Calculate merkle branches for transactions
+            # Start with coinbase txid placeholder and all transaction hashes
+            coinbase_txid_placeholder = b'\x00' * 32  # Placeholder, miner will calculate
+            tx_hashes = [coinbase_txid_placeholder]
+            for tx in job.get('transactions', []):
+                tx_hashes.append(bytes.fromhex(tx['hash'])[::-1])  # Little-endian
+
+            # Build merkle tree and get branches
+            merkle_branches = self.calculate_merkle_branches(tx_hashes, 0)  # For coinbase at index 0
+
             self.send_stratum_notification(client, "mining.notify", [
                 job["job_id"],
                 job["prevhash"],
-                "",  # coinb1 (empty for now - miner handles coinbase)
+                coinb1.hex(),
-                "",  # coinb2 (empty for now - miner handles coinbase)
+                coinb2.hex(),
-                [],  # merkle_branch (empty for now - we calculate merkle root)
+                merkle_branches,
                 f"{job['version']:08x}",
                 job["bits"],
                 job["ntime"],