diff --git a/JHA/jackpotcoin.cu b/JHA/jackpotcoin.cu
index f13a7e8..78e5bd0 100644
--- a/JHA/jackpotcoin.cu
+++ b/JHA/jackpotcoin.cu
@@ -30,8 +30,8 @@ extern void jackpot_compactTest_cpu_hash_64(int thr_id, uint32_t threads, uint32
 
 extern uint32_t cuda_check_hash_branch(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_inputHash, int order);
 
-// Original jackpothash Funktion aus einem miner Quelltext
-extern "C" unsigned int jackpothash(void *state, const void *input)
+// CPU HASH JHA v8
+extern "C" void jackpothash(void *state, const void *input)
 {
 	uint32_t hash[16];
 	unsigned int rnd;
@@ -71,8 +71,6 @@ extern "C" unsigned int jackpothash(void *state, const void *input)
 		}
 	}
 	memcpy(state, hash, 32);
-
-	return rnd;
 }
 
 static bool init[MAX_GPUS] = { 0 };
diff --git a/Makefile.am b/Makefile.am
index 08971d0..307d86e 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -45,7 +45,7 @@ ccminer_SOURCES	= elist.h miner.h compat.h \
 			  crypto/cryptolight.cu crypto/cryptolight-core.cu crypto/cryptolight-cpu.cpp \
 			  crypto/cryptonight.cu crypto/cryptonight-core.cu crypto/cryptonight-extra.cu \
 			  crypto/cryptonight-cpu.cpp crypto/oaes_lib.cpp crypto/aesb.cpp crypto/cpu/c_keccak.c \
-			  JHA/jha.cu JHA/cuda_jha_keccak512.cu \
+			  JHA/jha.cu JHA/jackpotcoin.cu JHA/cuda_jha_keccak512.cu \
 			  JHA/cuda_jha_compactionTest.cu cuda_checkhash.cu \
 			  quark/cuda_jh512.cu quark/cuda_quark_blake512.cu quark/cuda_quark_groestl512.cu quark/cuda_skein512.cu \
 			  quark/cuda_bmw512.cu quark/cuda_quark_keccak512.cu \
diff --git a/algos.h b/algos.h
index df18131..e4dc4bb 100644
--- a/algos.h
+++ b/algos.h
@@ -22,6 +22,7 @@ enum sha_algos {
 	ALGO_HEAVY,		/* Heavycoin hash */
 	ALGO_HMQ1725,
 	ALGO_KECCAK,
+	ALGO_JACKPOT,
 	ALGO_JHA,
 	ALGO_LBRY,
 	ALGO_LUFFA,
@@ -83,6 +84,7 @@ static const char *algo_names[] = {
 	"heavy",
 	"hmq1725",
 	"keccak",
+	"jackpot",
 	"jha",
 	"lbry",
 	"luffa",
@@ -151,8 +153,8 @@ static inline int algo_to_int(char* arg)
 			i = ALGO_LUFFA;
 		else if (!strcasecmp("hmq17", arg))
 			i = ALGO_HMQ1725;
-		else if (!strcasecmp("jackpot", arg))
-			i = ALGO_JHA;
+		//else if (!strcasecmp("jackpot", arg))
+		//	i = ALGO_JHA;
 		else if (!strcasecmp("lyra2re", arg))
 			i = ALGO_LYRA2;
 		else if (!strcasecmp("lyra2rev2", arg))
diff --git a/bench.cpp b/bench.cpp
index 3e68224..b288089 100644
--- a/bench.cpp
+++ b/bench.cpp
@@ -65,7 +65,7 @@ void algo_free_all(int thr_id)
 	free_groestlcoin(thr_id);
 	free_heavy(thr_id);
 	free_hmq17(thr_id);
-	//free_jackpot(thr_id);
+	free_jackpot(thr_id);
 	free_jha(thr_id);
 	free_lbry(thr_id);
 	free_luffa(thr_id);
diff --git a/ccminer.cpp b/ccminer.cpp
index 142fbfe..690f38a 100644
--- a/ccminer.cpp
+++ b/ccminer.cpp
@@ -240,7 +240,7 @@ Options:\n\
 			groestl     Groestlcoin\n\
 			heavy       Heavycoin\n\
 			hmq1725     Doubloons / Espers\n\
-			jackpot     Jackpot\n\
+			jha         JHA v8 (JackpotCoin)\n\
 			keccak      Keccak-256 (Maxcoin)\n\
 			lbry        LBRY Credits (Sha/Ripemd)\n\
 			luffa       Joincoin\n\
@@ -1612,6 +1612,7 @@ static bool stratum_gen_work(struct stratum_ctx *sctx, struct work *work)
 
 	switch (opt_algo) {
 		case ALGO_HMQ1725:
+		case ALGO_JACKPOT:
 		case ALGO_JHA:
 		case ALGO_NEOSCRYPT:
 		case ALGO_SCRYPT:
@@ -2128,6 +2129,7 @@ static void *miner_thread(void *userdata)
 			case ALGO_C11:
 			case ALGO_DEEP:
 			case ALGO_HEAVY:
+			case ALGO_JACKPOT:
 			case ALGO_JHA:
 			case ALGO_LYRA2v2:
 			case ALGO_S3:
@@ -2269,9 +2271,14 @@ static void *miner_thread(void *userdata)
 		case ALGO_KECCAK:
 			rc = scanhash_keccak256(thr_id, &work, max_nonce, &hashes_done);
 			break;
+
+		case ALGO_JACKPOT:
+			rc = scanhash_jackpot(thr_id, &work, max_nonce, &hashes_done);
+			break;
 		case ALGO_JHA:
 			rc = scanhash_jha(thr_id, &work, max_nonce, &hashes_done);
 			break;
+
 		case ALGO_LBRY:
 			rc = scanhash_lbry(thr_id, &work, max_nonce, &hashes_done);
 			break;
@@ -2426,7 +2433,7 @@ static void *miner_thread(void *userdata)
 			/* hashrate factors for some algos */
 			double rate_factor = 1.0;
 			switch (opt_algo) {
-				//case ALGO_JACKPOT:
+				case ALGO_JACKPOT:
 				case ALGO_QUARK:
 					// to stay comparable to other ccminer forks or pools
 					rate_factor = 0.5;
diff --git a/ccminer.vcxproj b/ccminer.vcxproj
index c18d560..5aad65e 100644
--- a/ccminer.vcxproj
+++ b/ccminer.vcxproj
@@ -436,6 +436,7 @@
     <CudaCompile Include="heavy\bastion.cu" />
     <CudaCompile Include="heavy\cuda_bastion.cu" />
     <CudaCompile Include="JHA\jha.cu" />
+    <CudaCompile Include="JHA\jackpotcoin.cu" />
     <CudaCompile Include="JHA\cuda_jha_compactionTest.cu">
       <AdditionalOptions>-Xptxas "-abi=yes" %(AdditionalOptions)</AdditionalOptions>
     </CudaCompile>
diff --git a/ccminer.vcxproj.filters b/ccminer.vcxproj.filters
index 4b3d828..f37da23 100644
--- a/ccminer.vcxproj.filters
+++ b/ccminer.vcxproj.filters
@@ -577,6 +577,9 @@
     <CudaCompile Include="JHA\jha.cu">
       <Filter>Source Files\CUDA\JHA</Filter>
     </CudaCompile>
+    <CudaCompile Include="JHA\jackpotcoin.cu">
+      <Filter>Source Files\CUDA\JHA</Filter>
+    </CudaCompile>
     <CudaCompile Include="cuda_myriadgroestl.cu">
       <Filter>Source Files\CUDA</Filter>
     </CudaCompile>
diff --git a/miner.h b/miner.h
index 9e30dac..f720bc7 100644
--- a/miner.h
+++ b/miner.h
@@ -871,7 +871,7 @@ void fugue256_hash(unsigned char* output, const unsigned char* input, int len);
 void heavycoin_hash(unsigned char* output, const unsigned char* input, int len);
 void hmq17hash(void *output, const void *input);
 void keccak256_hash(void *state, const void *input);
-unsigned int jackpothash(void *state, const void *input);
+void jackpothash(void *state, const void *input);
 void groestlhash(void *state, const void *input);
 void jha_hash(void *output, const void *input);
 void lbry_hash(void *output, const void *input);
diff --git a/quark/cuda_quark.h b/quark/cuda_quark.h
index 18f37d5..fbb0c1d 100644
--- a/quark/cuda_quark.h
+++ b/quark/cuda_quark.h
@@ -17,7 +17,7 @@ extern void quark_doublegroestl512_cpu_hash_64(int thr_id, uint32_t threads, uin
 extern void quark_groestl512_cpu_free(int thr_id);
 
 extern void quark_skein512_cpu_init(int thr_id, uint32_t threads);
-extern void quark_skein512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
+extern void quark_skein512_cpu_hash_64(int thr_id, const uint32_t threads, const uint32_t startNonce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
 
 extern void quark_keccak512_cpu_init(int thr_id, uint32_t threads);
 extern void quark_keccak512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order);
diff --git a/quark/cuda_skein512.cu b/quark/cuda_skein512.cu
index bdb5d13..7c4d99a 100644
--- a/quark/cuda_skein512.cu
+++ b/quark/cuda_skein512.cu
@@ -463,7 +463,7 @@ __launch_bounds__(TPB52, 3)
 #else
 __launch_bounds__(TPB50, 5)
 #endif
-void quark_skein512_gpu_hash_64(const uint32_t threads,uint64_t* __restrict__ g_hash, const uint32_t *const __restrict__ g_nonceVector)
+void quark_skein512_gpu_hash_64(const uint32_t threads, const uint32_t startNonce, uint64_t* __restrict__ g_hash, const uint32_t *const __restrict__ g_nonceVector)
 {
 	const uint32_t thread = (blockDim.x * blockIdx.x + threadIdx.x);
 
@@ -472,7 +472,7 @@ void quark_skein512_gpu_hash_64(const uint32_t threads,uint64_t* __restrict__ g_
 		// Skein
 		uint2 p[8], h[9];
 
-		const uint32_t hashPosition = (g_nonceVector == NULL) ? thread : g_nonceVector[thread];
+		const uint32_t hashPosition = (g_nonceVector == NULL) ? thread : g_nonceVector[thread] - startNonce;
 
 		uint64_t *Hash = &g_hash[hashPosition<<3];
 
@@ -756,7 +756,7 @@ void quark_skein512_gpu_hash_64(const uint32_t threads,uint64_t* __restrict__ g_
 
 __host__
 //void quark_skein512_cpu_hash_64(int thr_id,uint32_t threads, uint32_t *d_nonceVector, uint32_t *d_hash)
-void quark_skein512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNounce, uint32_t *d_nonceVector, uint32_t *d_hash, int order)
+void quark_skein512_cpu_hash_64(int thr_id, const uint32_t threads, const uint32_t startNonce, uint32_t *d_nonceVector, uint32_t *d_hash, int order)
 {
 	uint32_t tpb = TPB52;
 	int dev_id = device_map[thr_id];
@@ -764,7 +764,7 @@ void quark_skein512_cpu_hash_64(int thr_id, uint32_t threads, uint32_t startNoun
 	if (device_sm[dev_id] <= 500) tpb = TPB50;
 	const dim3 grid((threads + tpb-1)/tpb);
 	const dim3 block(tpb);
-	quark_skein512_gpu_hash_64 << <grid, block >> >(threads, (uint64_t*)d_hash, d_nonceVector);
+	quark_skein512_gpu_hash_64 <<<grid, block >>>(threads, startNonce, (uint64_t*)d_hash, d_nonceVector);
 
 }