Topic: Please help to find out why can't mining block 7887 of CosmosCoin(CMC) - page 2. (Read 1536 times)
July 03, 2013, 11:06:54 PM
I mined the block twice, but both were rejected.
July 03, 2013, 10:31:43 PM
Looks like your target reduced massively at block 7887, from 00000008359d00... to 000000004c847400...; ie 7 zeros to 8 zeros at the start.
Was a retarget intended for block 7887? And can you post the raw block for 7886; there might be something hiding there.
Edit:
nBits for the block you're trying to mine are nBits=1ccc8474
nBits for the previous blocks were nBits=1d08359d
Sure these are correct? This error message indicates they are not: ERROR: CheckProofOfWork() : nBits below minimum work
1ccc8474 < 1d08359d
Edit again:
Ignore most of the above, didn't realise CMC was based on PPC. There are retargets every block, so changing nBits is expected. The reason these are so drastically different is because of the algorithm used to calculate them and the leniency on block timestamps.
Was a retarget intended for block 7887? And can you post the raw block for 7886; there might be something hiding there.
Edit:
nBits for the block you're trying to mine are nBits=1ccc8474
nBits for the previous blocks were nBits=1d08359d
Sure these are correct? This error message indicates they are not: ERROR: CheckProofOfWork() : nBits below minimum work
1ccc8474 < 1d08359d
Edit again:
Ignore most of the above, didn't realise CMC was based on PPC. There are retargets every block, so changing nBits is expected. The reason these are so drastically different is because of the algorithm used to calculate them and the leniency on block timestamps.
July 03, 2013, 07:56:37 PM
Need help from bitcoin community, it's really strange, I never met this before.
July 03, 2013, 07:55:57 PM
Hello everyone,
Right now the mining process of CMC can't go on, it has been stucked in mining block 7887(7886 has been mined), and the CMC network has mining this block for more than 20 hours, but still can't get this block, following is the debug message, can someone help me to find out why?
If possible, please help me to check the soucecode.
Right now the mining process of CMC can't go on, it has been stucked in mining block 7887(7886 has been mined), and the CMC network has mining this block for more than 20 hours, but still can't get this block, following is the debug message, can someone help me to find out why?
If possible, please help me to check the soucecode.
Code:
7884
CosmoscoinMiner:
new block found
hash: 00000004a11a5a3080247c1c1c795d96e7330179d185475eaee48ed698604040
target: 00000008359d0000000000000000000000000000000000000000000000000000
CBlock(hash=00000004a11a5a3080247c1c1c795d96e7330179d185475eaee48ed698604040, ver=4, hashPrevBlock=00000004a6598bf7e9db875c15d18ac0bb82ec6098dead3b387485bd59fbd576, hashMerkleRoot=09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660, nTime=1372827390, nBits=1d08359d, nNonce=1403308544, vtx=1, vchBlockSig=3044022064838ba8efaf4fcda26d3111616e550828e0d360b299473f63dd32270036f8f602202641db4242501a1ba79881c5f09717b0b47840ca2e7ae88b9fc5a65aca54dc09)
Coinbase(hash=09d9d6359b, nTime=1372827390, ver=1, vin.size=1, vout.size=1, nLockTime=0, strTxComment=)
CTxIn(COutPoint(0000000000, 4294967295), coinbase 02cc1e02f700062f503253482f)
CTxOut(nValue=3.50, scriptPubKey=036d7d566e243a707b80098e63261d8014ad250b0a59ff0009a5f943a1a2f05d5d OP_CHECKSIG)
vMerkleTree: 09d9d6359b
generated 3.50
AddToWallet 09d9d6359b new
NotifyTransactionChanged 09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660 status=0
updateWallet 09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660 0
SetBestChain: new best=00000004a11a5a308024 height=7884 trust=7885 date=07/03/13 04:56:30,block hash= 00000004a11a5a3080247c1c1c795d96e7330179d185475eaee48ed698604040
ProcessBlock: ACCEPTED
inWallet=1 inModel=0 Index=0-0 showTransaction=1 derivedStatus=0
7885
received block 000000082148a6f66e17
SetBestChain: new best=000000082148a6f66e17 height=7885 trust=7886 date=07/03/13 06:54:50,block hash= 000000082148a6f66e17bab8d41af11171bc6f4d9416f983ddad0212a41775c0
NotifyTransactionChanged 09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660 status=1
updateWallet 09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660 1
inWallet=1 inModel=1 Index=0-1 showTransaction=1 derivedStatus=1
ProcessBlock: ACCEPTED
7886
received block 000000082f31f8c70dd7
SetBestChain: new best=000000082f31f8c70dd7 height=7886 trust=7887 date=07/03/13 04:58:14,block hash= 000000082f31f8c70dd7f9a857f04fe14f7df2a57bb9bc1f54d336c70dea6205
ProcessBlock: ACCEPTED
trying 7887
CosmoscoinMiner:
new block found
hash: 000000001ccfcd1d3535cf66b610ebec00c22f7584075143fca244a461292688
target: 000000004c847400000000000000000000000000000000000000000000000000
CBlock(hash=000000001ccfcd1d3535cf66b610ebec00c22f7584075143fca244a461292688, ver=4, hashPrevBlock=000000082f31f8c70dd7f9a857f04fe14f7df2a57bb9bc1f54d336c70dea6205, hashMerkleRoot=bcc950ece93fa26d421552d7b1bce67e202805109636de43b82ab6351e898edd, nTime=1372848829, nBits=1ccc8474, nNonce=3857342464, vtx=2, vchBlockSig=3045022100fbda80643e49dc83fbd77a85518be6cf995cdb26b08968258be2517f5b602d8d02200a3650a0705bcc030e13705279d7426291d195a593531dc724351f29acbdae3d)
Coinbase(hash=5f76e4396a, nTime=1372846614, ver=1, vin.size=1, vout.size=1, nLockTime=0, strTxComment=)
CTxIn(COutPoint(0000000000, 4294967295), coinbase 02cf1e02bf00062f503253482f)
CTxOut(nValue=3.50, scriptPubKey=036d7d566e243a707b80098e63261d8014ad250b0a59ff0009a5f943a1a2f05d5d OP_CHECKSIG)
CTransaction(hash=eec1452388, nTime=1372830959, ver=1, vin.size=10, vout.size=1, nLockTime=0, strTxComment=)
CTxIn(COutPoint(b45018e2f6, 0), scriptSig=304502207213ca61f910d91a)
CTxIn(COutPoint(32b7f14678, 0), scriptSig=304502205e2cea76de6da34c)
CTxIn(COutPoint(6f0b98764b, 0), scriptSig=304502201e71fdb127197bcd)
CTxIn(COutPoint(3bd01c0f4d, 0), scriptSig=304402207174d5b76688422b)
CTxIn(COutPoint(2c906f6174, 0), scriptSig=304402200e42be1377f33276)
CTxIn(COutPoint(b19b727915, 0), scriptSig=304502207b4c2cd53215b864)
CTxIn(COutPoint(dc30fbf141, 0), scriptSig=3046022100c2a6bed8a1311c)
CTxIn(COutPoint(e625ca77a8, 0), scriptSig=304602210094d81da7803997)
CTxIn(COutPoint(f039a9dfdc, 0), scriptSig=3044022073449fecc0698427)
CTxIn(COutPoint(b5d6c2ee98, 0), scriptSig=304402200a11791eb005bae7)
CTxOut(nValue=35.00, scriptPubKey=OP_DUP OP_HASH160 fe095e8f8e2c4a2cb5f92de4e02084964a6d17ba OP_EQUALVERIFY OP_CHECKSIG)
vMerkleTree: 5f76e4396a eec1452388 bcc950ece9
generated 3.50
ERROR: CheckProofOfWork() : nBits below minimum work
ERROR: CheckBlock() : proof of work failed
ERROR: ProcessBlock() : CheckBlock FAILED
ERROR: CosmoscoinMiner : ProcessBlock, block not accepted
trying 7887
CosmoscoinMiner:
new block found
hash: 000000003c73bcebacaa08b78cfc90a927fc0f8249c610deb2894c14ff708853
target: 000000004c847400000000000000000000000000000000000000000000000000
CBlock(hash=000000003c73bcebacaa08b78cfc90a927fc0f8249c610deb2894c14ff708853, ver=4, hashPrevBlock=000000082f31f8c70dd7f9a857f04fe14f7df2a57bb9bc1f54d336c70dea6205, hashMerkleRoot=c398fc119e61f31f26dc1688e41a0fbf9c9043433f6c80be7492222ae2c335b7, nTime=1372830001, nBits=1ccc8474, nNonce=1539703040, vtx=1, vchBlockSig=3045022100b4a49d56a693b9ff0992f667d1110b11eda7f5d04ee0af45b633d6e446a90fea022075a7b8b9135cae799374b9bf705562ae840f7add3a49a4c8a8b2a7fbba2c5a07)
Coinbase(hash=c398fc119e, nTime=1372827513, ver=1, vin.size=1, vout.size=1, nLockTime=0, strTxComment=)
CTxIn(COutPoint(0000000000, 4294967295), coinbase 02cf1e02af09062f503253482f)
CTxOut(nValue=3.50, scriptPubKey=02922aa99f761b02d5d6f6c41552260188d6adf143f9e825f2a27c5ae03c0b72dd OP_CHECKSIG)
vMerkleTree: c398fc119e
generated 3.50
ERROR: CheckProofOfWork() : nBits below minimum work
ERROR: CheckBlock() : proof of work failed
ERROR: ProcessBlock() : CheckBlock FAILED
ERROR: CosmoscoinMiner : ProcessBlock, block not accepted
trying 7887
ERROR: CosmoscoinMiner : proof-of-work not meeting target
CosmoscoinMiner:
new block found
hash: 00000004a11a5a3080247c1c1c795d96e7330179d185475eaee48ed698604040
target: 00000008359d0000000000000000000000000000000000000000000000000000
CBlock(hash=00000004a11a5a3080247c1c1c795d96e7330179d185475eaee48ed698604040, ver=4, hashPrevBlock=00000004a6598bf7e9db875c15d18ac0bb82ec6098dead3b387485bd59fbd576, hashMerkleRoot=09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660, nTime=1372827390, nBits=1d08359d, nNonce=1403308544, vtx=1, vchBlockSig=3044022064838ba8efaf4fcda26d3111616e550828e0d360b299473f63dd32270036f8f602202641db4242501a1ba79881c5f09717b0b47840ca2e7ae88b9fc5a65aca54dc09)
Coinbase(hash=09d9d6359b, nTime=1372827390, ver=1, vin.size=1, vout.size=1, nLockTime=0, strTxComment=)
CTxIn(COutPoint(0000000000, 4294967295), coinbase 02cc1e02f700062f503253482f)
CTxOut(nValue=3.50, scriptPubKey=036d7d566e243a707b80098e63261d8014ad250b0a59ff0009a5f943a1a2f05d5d OP_CHECKSIG)
vMerkleTree: 09d9d6359b
generated 3.50
AddToWallet 09d9d6359b new
NotifyTransactionChanged 09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660 status=0
updateWallet 09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660 0
SetBestChain: new best=00000004a11a5a308024 height=7884 trust=7885 date=07/03/13 04:56:30,block hash= 00000004a11a5a3080247c1c1c795d96e7330179d185475eaee48ed698604040
ProcessBlock: ACCEPTED
inWallet=1 inModel=0 Index=0-0 showTransaction=1 derivedStatus=0
7885
received block 000000082148a6f66e17
SetBestChain: new best=000000082148a6f66e17 height=7885 trust=7886 date=07/03/13 06:54:50,block hash= 000000082148a6f66e17bab8d41af11171bc6f4d9416f983ddad0212a41775c0
NotifyTransactionChanged 09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660 status=1
updateWallet 09d9d6359ba0c1620253b2bfe63c0e1841294d6a502b0b934f7708f836fdf660 1
inWallet=1 inModel=1 Index=0-1 showTransaction=1 derivedStatus=1
ProcessBlock: ACCEPTED
7886
received block 000000082f31f8c70dd7
SetBestChain: new best=000000082f31f8c70dd7 height=7886 trust=7887 date=07/03/13 04:58:14,block hash= 000000082f31f8c70dd7f9a857f04fe14f7df2a57bb9bc1f54d336c70dea6205
ProcessBlock: ACCEPTED
trying 7887
CosmoscoinMiner:
new block found
hash: 000000001ccfcd1d3535cf66b610ebec00c22f7584075143fca244a461292688
target: 000000004c847400000000000000000000000000000000000000000000000000
CBlock(hash=000000001ccfcd1d3535cf66b610ebec00c22f7584075143fca244a461292688, ver=4, hashPrevBlock=000000082f31f8c70dd7f9a857f04fe14f7df2a57bb9bc1f54d336c70dea6205, hashMerkleRoot=bcc950ece93fa26d421552d7b1bce67e202805109636de43b82ab6351e898edd, nTime=1372848829, nBits=1ccc8474, nNonce=3857342464, vtx=2, vchBlockSig=3045022100fbda80643e49dc83fbd77a85518be6cf995cdb26b08968258be2517f5b602d8d02200a3650a0705bcc030e13705279d7426291d195a593531dc724351f29acbdae3d)
Coinbase(hash=5f76e4396a, nTime=1372846614, ver=1, vin.size=1, vout.size=1, nLockTime=0, strTxComment=)
CTxIn(COutPoint(0000000000, 4294967295), coinbase 02cf1e02bf00062f503253482f)
CTxOut(nValue=3.50, scriptPubKey=036d7d566e243a707b80098e63261d8014ad250b0a59ff0009a5f943a1a2f05d5d OP_CHECKSIG)
CTransaction(hash=eec1452388, nTime=1372830959, ver=1, vin.size=10, vout.size=1, nLockTime=0, strTxComment=)
CTxIn(COutPoint(b45018e2f6, 0), scriptSig=304502207213ca61f910d91a)
CTxIn(COutPoint(32b7f14678, 0), scriptSig=304502205e2cea76de6da34c)
CTxIn(COutPoint(6f0b98764b, 0), scriptSig=304502201e71fdb127197bcd)
CTxIn(COutPoint(3bd01c0f4d, 0), scriptSig=304402207174d5b76688422b)
CTxIn(COutPoint(2c906f6174, 0), scriptSig=304402200e42be1377f33276)
CTxIn(COutPoint(b19b727915, 0), scriptSig=304502207b4c2cd53215b864)
CTxIn(COutPoint(dc30fbf141, 0), scriptSig=3046022100c2a6bed8a1311c)
CTxIn(COutPoint(e625ca77a8, 0), scriptSig=304602210094d81da7803997)
CTxIn(COutPoint(f039a9dfdc, 0), scriptSig=3044022073449fecc0698427)
CTxIn(COutPoint(b5d6c2ee98, 0), scriptSig=304402200a11791eb005bae7)
CTxOut(nValue=35.00, scriptPubKey=OP_DUP OP_HASH160 fe095e8f8e2c4a2cb5f92de4e02084964a6d17ba OP_EQUALVERIFY OP_CHECKSIG)
vMerkleTree: 5f76e4396a eec1452388 bcc950ece9
generated 3.50
ERROR: CheckProofOfWork() : nBits below minimum work
ERROR: CheckBlock() : proof of work failed
ERROR: ProcessBlock() : CheckBlock FAILED
ERROR: CosmoscoinMiner : ProcessBlock, block not accepted
trying 7887
CosmoscoinMiner:
new block found
hash: 000000003c73bcebacaa08b78cfc90a927fc0f8249c610deb2894c14ff708853
target: 000000004c847400000000000000000000000000000000000000000000000000
CBlock(hash=000000003c73bcebacaa08b78cfc90a927fc0f8249c610deb2894c14ff708853, ver=4, hashPrevBlock=000000082f31f8c70dd7f9a857f04fe14f7df2a57bb9bc1f54d336c70dea6205, hashMerkleRoot=c398fc119e61f31f26dc1688e41a0fbf9c9043433f6c80be7492222ae2c335b7, nTime=1372830001, nBits=1ccc8474, nNonce=1539703040, vtx=1, vchBlockSig=3045022100b4a49d56a693b9ff0992f667d1110b11eda7f5d04ee0af45b633d6e446a90fea022075a7b8b9135cae799374b9bf705562ae840f7add3a49a4c8a8b2a7fbba2c5a07)
Coinbase(hash=c398fc119e, nTime=1372827513, ver=1, vin.size=1, vout.size=1, nLockTime=0, strTxComment=)
CTxIn(COutPoint(0000000000, 4294967295), coinbase 02cf1e02af09062f503253482f)
CTxOut(nValue=3.50, scriptPubKey=02922aa99f761b02d5d6f6c41552260188d6adf143f9e825f2a27c5ae03c0b72dd OP_CHECKSIG)
vMerkleTree: c398fc119e
generated 3.50
ERROR: CheckProofOfWork() : nBits below minimum work
ERROR: CheckBlock() : proof of work failed
ERROR: ProcessBlock() : CheckBlock FAILED
ERROR: CosmoscoinMiner : ProcessBlock, block not accepted
trying 7887
ERROR: CosmoscoinMiner : proof-of-work not meeting target
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