Update next consensus hardfork to be block 1605555 on Dec 16th 2023

src/hush_defs.h

@@ -55,8 +55,11 @@ const uint32_t nHushHardforkHeight2 = 245055;
 // This height begins Hush DPoW from Hush notaries
 const uint32_t nHushHardforkHeight3    = 340420;
 // This height begins Hush Decentralized Devtax
-const uint32_t nHushHardforkHeight4    = 99999999; // TODO
-
+// ./contrib/block_time.pl 1605555
+// Hush Block 1605555 will happen at roughly:
+// Sat Dec 16 10:30:42 2023 Eastern # 1702740642
+// Sat Dec 16 15:30:42 2023 GMT     # 1702740642
+const uint32_t nHushHardforkHeight4    = 1605555;
 const uint32_t nHushHardforkTimestamp  = 1580303652; // Jan 29nd 1pm GMT
 const uint32_t nHushHardforkTimestamp2 = 1594425600; // Jul 11th 12a GMT
 
@@ -64,8 +67,7 @@ const uint32_t nHushHardforkTimestamp2 = 1594425600; // Jul 11th 12a GMT
 static const uint32_t HUSH_SEASON_TIMESTAMPS[NUM_HUSH_SEASONS] = {1525132800, 1563148800, nHushHardforkTimestamp, nHushHardforkTimestamp2, nHushHardforkTimestamp2*5, nHushHardforkTimestamp2*6, nHushHardforkTimestamp2*7};
 
 // Used by HUSH3+TUSH
-// Block 1702100  = nHushHardforkHeight3*5
-static const int32_t  HUSH_SEASON_HEIGHTS[NUM_HUSH_SEASONS]    = {1,2,nHushHardforkHeight, nHushHardforkHeight2, (int)340000, nHushHardforkHeight3, nHushHardforkHeight3*5};
+static const int32_t  HUSH_SEASON_HEIGHTS[NUM_HUSH_SEASONS]    = {1,2,nHushHardforkHeight, nHushHardforkHeight2, (int)340000, nHushHardforkHeight3, nHushHardforkHeight4};
 
 // Era array of pubkeys. Add extra seasons to bottom as requried, after adding appropriate info above. 
 static const char *notaries_elected[NUM_HUSH_SEASONS][NUM_HUSH_NOTARIES][2] =