Even thru the Block explorer is showing low orphans,
Start a new Mintcoin wallet install and you will see the orphans that I am talking about,
I just started one and let it run for 15 minutes , here is some of the debug.log from a fresh install less then 15 minutes old.
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ERROR: CheckProofOfStake() : INFO: read txPrev failed
WARNING: ProcessBlock(): check proof-of-stake failed for block 61912796db798a1d7e17ffd170e3b3e040a664a9821d04f7e2f3ce85f1a2afca
received block 35006178714cf1c4a467
ERROR: CheckProofOfStake() : INFO: read txPrev failed
WARNING: ProcessBlock(): check proof-of-stake failed for block 35006178714cf1c4a4678a95b446e76b27b88e50b2d459926fabd7b9ce16269b
received block 339c4af7f735fbacc9cf
ERROR: CheckProofOfStake() : INFO: read txPrev failed
WARNING: ProcessBlock(): check proof-of-stake failed for block 339c4af7f735fbacc9cf258c89493d9313a122f9d46e84f371ed67208b7cc204
received block 0000000000db56cbec1a
ProcessBlock: ORPHAN BLOCK, prev=00000000078cbd2d9d65
received block 0000000009970bb5b8c4
ProcessBlock: ORPHAN BLOCK, prev=0000000000db56cbec1a
received block 0000000004d2ddaf9ad1
ProcessBlock: ORPHAN BLOCK, prev=0000000009970bb5b8c4
received block 0000000000fd1e5bd562
ProcessBlock: ORPHAN BLOCK, prev=0000000004d2ddaf9ad1
received block 000000000a89810157a1
ProcessBlock: ORPHAN BLOCK, prev=0000000000fd1e5bd562
received block 0000000009c17a761921
ProcessBlock: ORPHAN BLOCK, prev=000000000a89810157a1
received block 000000000d90d112d4fe
ProcessBlock: ORPHAN BLOCK, prev=0000000009c17a761921
received block 0000000006853c3612de
ProcessBlock: ORPHAN BLOCK, prev=000000000d90d112d4fe
received block 00000000041d5a017c3e
ProcessBlock: ORPHAN BLOCK, prev=0000000006853c3612de
received block 000000000393b5764dd2
ProcessBlock: ORPHAN BLOCK, prev=00000000041d5a017c3e
received block 0000000004226330e056
ProcessBlock: ORPHAN BLOCK, prev=000000000393b5764dd2
received block 0000000004650d1f0e33
ProcessBlock: ORPHAN BLOCK, prev=0000000004226330e056
received block 0000000002da56ce955c
ProcessBlock: ORPHAN BLOCK, prev=0000000004650d1f0e33
received block 0000000009827d996b4c
ProcessBlock: ORPHAN BLOCK, prev=0000000002da56ce955c
received block 000000000083db7b5c63
ProcessBlock: ORPHAN BLOCK, prev=0000000009827d996b4c
received block 000000000211ee390be4
ProcessBlock: ORPHAN BLOCK, prev=000000000083db7b5c63
received block 00000000013f2a3054b5
ProcessBlock: ORPHAN BLOCK, prev=000000000211ee390be4
received block 0000000003b4ef496a79
ProcessBlock: ORPHAN BLOCK, prev=00000000013f2a3054b5
received block 00000000090637db8c17
ProcessBlock: ORPHAN BLOCK, prev=0000000003b4ef496a79
received block 000000000625a02680e9
ProcessBlock: ORPHAN BLOCK, prev=00000000090637db8c17
received block 000000000a83cbd51a28
ProcessBlock: ORPHAN BLOCK, prev=000000000625a02680e9
received block 0000000003cfaf38cf47
ProcessBlock: ORPHAN BLOCK, prev=000000000a83cbd51a28
received block 00000000090d83016628
ProcessBlock: ORPHAN BLOCK, prev=0000000003cfaf38cf47
received block 0000000007bd925d41a6
ProcessBlock: ORPHAN BLOCK, prev=00000000090d83016628
received block 0000000003c2327b92a0
ProcessBlock: ORPHAN BLOCK, prev=0000000007bd925d41a6
received block 0000000005bf93463dd1
ProcessBlock: ORPHAN BLOCK, prev=0000000003c2327b92a0
received block 0000000003b43d4e37d3
ProcessBlock: ORPHAN BLOCK, prev=0000000005bf93463dd1
received block 0000000003e35a59df60
ProcessBlock: ORPHAN BLOCK, prev=0000000003b43d4e37d3
received block 0000000001d4389fe306
ProcessBlock: ORPHAN BLOCK, prev=0000000003e35a59df60
received block 000000000149297ff1d3
ProcessBlock: ORPHAN BLOCK, prev=0000000001d4389fe306
received block 00000000061385b81ec2
ProcessBlock: ORPHAN BLOCK, prev=000000000149297ff1d3
received block 0000000002ef1e85d250
ProcessBlock: ORPHAN BLOCK, prev=00000000061385b81ec2
received block 00000000014a3f486bc5
ProcessBlock: ORPHAN BLOCK, prev=0000000002ef1e85d250
received block 000000000bd7c6c08260
ProcessBlock: ORPHAN BLOCK, prev=00000000014a3f486bc5
received block 000000000452d6cece4a
ProcessBlock: ORPHAN BLOCK, prev=000000000bd7c6c08260
received block 0000000000c4acb3b7f0
ProcessBlock: ORPHAN BLOCK, prev=000000000452d6cece4a
received block 0000000006ab6460e183
ProcessBlock: ORPHAN BLOCK, prev=0000000000c4acb3b7f0
received block 00000000005c993044c4
ProcessBlock: ORPHAN BLOCK, prev=0000000006ab6460e183
received block 000000000381e1af6b68
ProcessBlock: ORPHAN BLOCK, prev=00000000005c993044c4
received block 000000000012d2d3279a
ProcessBlock: ORPHAN BLOCK, prev=000000000381e1af6b68
received block 00000000014fb00438f2
ProcessBlock: ORPHAN BLOCK, prev=000000000012d2d3279a
received block 0000000005b4749be806
ProcessBlock: ORPHAN BLOCK, prev=00000000014fb00438f2
received block 000000000108f0c3b690
ProcessBlock: ORPHAN BLOCK, prev=0000000005b4749be806
received block 00000000032b01a8bd27
ProcessBlock: ORPHAN BLOCK, prev=000000000108f0c3b690
received block 00000000079ede07db8d
ProcessBlock: ORPHAN BLOCK, prev=00000000032b01a8bd27
received block 00000000057a1ea15cb2
ProcessBlock: ORPHAN BLOCK, prev=00000000079ede07db8d
received block 000000000551c5f0f4ce
ProcessBlock: ORPHAN BLOCK, prev=00000000057a1ea15cb2
received block 0000000008a1fdc1bf62
ProcessBlock: ORPHAN BLOCK, prev=000000000551c5f0f4ce
received block 0000000005f7786e205d
ProcessBlock: ORPHAN BLOCK, prev=0000000008a1fdc1bf62
received block 000000000b43585bb531
ProcessBlock: ORPHAN BLOCK, prev=0000000005f7786e205d
received block 000000000322d03bd3f5
ProcessBlock: ORPHAN BLOCK, prev=000000000b43585bb531
received block 00000000000d18791b57
ProcessBlock: ORPHAN BLOCK, prev=000000000322d03bd3f5
received block 0000000000654a00701e
ProcessBlock: ORPHAN BLOCK, prev=00000000000d18791b57
received block 0000000005ace68f6848
ProcessBlock: ORPHAN BLOCK, prev=0000000000654a00701e
received block 0000000008dfbe398748
ProcessBlock: ORPHAN BLOCK, prev=0000000005ace68f6848
received block 00000000053a73612a6d
ProcessBlock: ORPHAN BLOCK, prev=0000000008dfbe398748
received block 0000000003e4658df67c
ProcessBlock: ORPHAN BLOCK, prev=00000000053a73612a6d
received block 0000000000f867bcd180
ProcessBlock: ORPHAN BLOCK, prev=0000000003e4658df67c
received block 00000000059a94639849
ProcessBlock: ORPHAN BLOCK, prev=0000000000f867bcd180
received block 0000000001e16951dd3a
ProcessBlock: ORPHAN BLOCK, prev=00000000059a94639849
received block 00000000021e238acc32
ProcessBlock: ORPHAN BLOCK, prev=0000000001e16951dd3a
received block 00000000013a85c04888
ProcessBlock: ORPHAN BLOCK, prev=00000000021e238acc32
received block 000000000491b0f43a3c
ProcessBlock: ORPHAN BLOCK, prev=00000000013a85c04888
received block 0000000003b46ea7ebea
ProcessBlock: ORPHAN BLOCK, prev=000000000491b0f43a3c
received block 0000000002da8f2e11d8
ProcessBlock: ORPHAN BLOCK, prev=0000000003b46ea7ebea
received block 00000000033898e7ae93
ProcessBlock: ORPHAN BLOCK, prev=0000000002da8f2e11d8
received block 0000000006af099c9e52
ProcessBlock: ORPHAN BLOCK, prev=00000000033898e7ae93
received block 0000000004bb8841e1b3
ProcessBlock: ORPHAN BLOCK, prev=0000000006af099c9e52
received block 00000000007171ecf7f6
ProcessBlock: ORPHAN BLOCK, prev=0000000004bb8841e1b3
received block 0000000005f1d313ef1e
ProcessBlock: ORPHAN BLOCK, prev=00000000007171ecf7f6
received block 0000000002eb49934aa8
ProcessBlock: ORPHAN BLOCK, prev=0000000005f1d313ef1e
received block 0000000006f8210d8173
ProcessBlock: ORPHAN BLOCK, prev=0000000002eb49934aa8
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