It was because I have too much PoS power and my chain win.
Checkpoint server was also off.
With more PoS miners and Checkpoint server online it never happen again.
In QBT on same computer all my blocks go orphan.
Topic: [ANN] United SciFi Coin [SCIFI] PoW/PoS - page 7. (Read 41685 times)
I couldn't get solo mining working with bfgminer 5.4.2 on Windows, so I ended up using lpool.name. With the low difficulty, I imagine lpool.name has most of the network hash rate? If so, one snafu from their wallet could cause chain reaction issues? That pool is so under powered and slow to respond (server wise and admin wise), it does become a liability when the mining is not distributed.
Something wrong was with time.windows.com server. I found that one of my computers set to 1 hour ahead since yesterday.
Just set computer time and restart wallet, soon all start working.
Just set computer time and restart wallet, soon all start working.
Hmm, I didn't see this on any of my computers. You said max time drift is 3 min, so wouldn't this limit prevent any times 1 hour into the future? Also, the time is UTC so even if time is ahead one hour, UTC time should still be correct regardless of what Windows tells you is the time.
Something buggy, no?
it does seem dangerous that my (correct time) linux daemon/wallet was immediately accepting blocks generated 1 hour into the future. they should have been ignored (at least until the correct time catches up to the block's time.)
It would be interesting to see a postmortem from an expert like vamp. Maybe too nuanced to be meaningful, but curious if it should be thought of as a low probability event that occurred (was it a specific case where majority high-stake pos miners with UTC+1 took over, but chain operation was still robust in the end), or actually a corner case because the fix required outright action from a majority miner (resetting their clock)?
Arguing against the latter point, was the "fix" simply that with enough miners coming online with the correct time it would "clean up" the network adjusted time (baseline https://en.bitcoin.it/wiki/Block_timestamp
)?
Nice centralized coin you have there.
This needs to be fixed asap otherwise no use continuing.
This needs to be fixed asap otherwise no use continuing.
Something wrong was with time.windows.com server. I found that one of my computers set to 1 hour ahead since yesterday.
Just set computer time and restart wallet, soon all start working.
Just set computer time and restart wallet, soon all start working.
Hmm, I didn't see this on any of my computers. You said max time drift is 3 min, so wouldn't this limit prevent any times 1 hour into the future? Also, the time is UTC so even if time is ahead one hour, UTC time should still be correct regardless of what Windows tells you is the time.
Something buggy, no?
it does seem dangerous that my (correct time) linux daemon/wallet was immediately accepting blocks generated 1 hour into the future. they should have been ignored (at least until the correct time catches up to the block's time.)
PoS (with current time) and the pool seem to work again. Thanks for checking Grand Nagus. 
lpool seems to be working about 2 hours ago. Block 183071 with difficult 3.501703. Then diff dropped to 2.1 9 blocks later.
Something wrong was with time.windows.com server. I found that one of my computers set to 1 hour ahead since yesterday.
Just set computer time and restart wallet, soon all start working.
Just set computer time and restart wallet, soon all start working.
Hmm, I didn't see this on any of my computers. You said max time drift is 3 min, so wouldn't this limit prevent any times 1 hour into the future? Also, the time is UTC so even if time is ahead one hour, UTC time should still be correct regardless of what Windows tells you is the time.
Something buggy, no?
Something wrong was with time.windows.com server. I found that one of my computers set to 1 hour ahead since yesterday.
Just set computer time and restart wallet, soon all start working.
PoS (with current time) and the pool seem to work again. Thanks for checking Grand Nagus. Just set computer time and restart wallet, soon all start working.
Something wrong was with time.windows.com server. I found that one of my computers set to 1 hour ahead since yesterday.
Just set computer time and restart wallet, soon all start working.
Just set computer time and restart wallet, soon all start working.
Curiosity question: to my untrained eye, won't the client fix also require forking/checkpoint from where the problem happened (181997?) since currently the UTC timestamps of all the blocks since then are wrong? Trying to conceptualize how miners with the correct time could get back on the current longest chain without kludging the client to mess with how timestamps are agreed to.
Good question, don't know why some nodes seem to run 'one hour in the future' and nodes on the correct time accepted 'future' blocks. Guess to fix this without some kind of update, all nodes have to sync their time and disable PoS/PoW mining for one hour...IMHO it _should_ fork as the blocks from that point are obviously wrong and only 'cheaters' profit.
Indeed, it should have forked, but did not. 
IMHO it _should_ fork as the blocks from that point are obviously wrong and only 'cheaters' profit.
i'm noticing new blocks arriving consistently 1 hour into the future the last couple days.
Just found this in my debug.log. Yes, seems to be an issue with timestamps:Code:
CheckStake() : new proof-of-stake block found
hash: 782039806d45cb037e7b07e74ec1637058a8b5959b2d5d2fe348847a5a21b840
proofhash: 0000014da281be708a96c9d89efb2c1707cb6bd7838eb97b8312cac76282e3fd
target: 00000fa8ee0e0000000000000000000000000000000000000000000000000000
CBlock(hash=782039806d45cb037e7b07e74ec1637058a8b5959b2d5d2fe348847a5a21b840, ver=6, hashPrevBlock=74a4e46d294ce8880ab4f52e36a8239f55f5a28b9f3ad1b8439aa5f3de298bfd, hashMerkleRoot=ddc9251240bd996c2fca910c2992d73ad3fafe54012923bfd44a87079e616799, nTime=1524503117, nBits=1d00b1c6, nNonce=0, vtx=2, ...)
...
ERROR: AcceptBlock() : block's timestamp is too early
ERROR: ProcessBlock() : AcceptBlock FAILED
ERROR: CheckStake() : ProcessBlock, block not accepted
hash: 782039806d45cb037e7b07e74ec1637058a8b5959b2d5d2fe348847a5a21b840
proofhash: 0000014da281be708a96c9d89efb2c1707cb6bd7838eb97b8312cac76282e3fd
target: 00000fa8ee0e0000000000000000000000000000000000000000000000000000
CBlock(hash=782039806d45cb037e7b07e74ec1637058a8b5959b2d5d2fe348847a5a21b840, ver=6, hashPrevBlock=74a4e46d294ce8880ab4f52e36a8239f55f5a28b9f3ad1b8439aa5f3de298bfd, hashMerkleRoot=ddc9251240bd996c2fca910c2992d73ad3fafe54012923bfd44a87079e616799, nTime=1524503117, nBits=1d00b1c6, nNonce=0, vtx=2, ...)
...
ERROR: AcceptBlock() : block's timestamp is too early
ERROR: ProcessBlock() : AcceptBlock FAILED
ERROR: CheckStake() : ProcessBlock, block not accepted
Edit:
Yeah, guess there is something wrong with nTime/ntp.cpp? The following workaround 'fixed' my 'issue', but it's really... shady.
1) Close the UnitedSciFi client. Sync your system time.
2) Disable time syncing and set your local system time to current time + one hour.
3) Enable the NTP server on your local machine: https://www.interfacett.com/blogs/creating-standalone-ntp-server-windows/
4) Start the UnitedSciFi client.
PoS worked again.
Curiosity question: to my untrained eye, won't the client fix also require forking/checkpoint from where the problem happened (181997?) since currently the UTC timestamps of all the blocks since then are wrong? Trying to conceptualize how miners with the correct time could get back on the current longest chain without kludging the client to mess with how timestamps are agreed to.
Not gonna mess with my system time. Closing deamons until good fix is found.
i'm noticing new blocks arriving consistently 1 hour into the future the last couple days.
Just found this in my debug.log. Yes, seems to be an issue with timestamps:Code:
CheckStake() : new proof-of-stake block found
hash: 782039806d45cb037e7b07e74ec1637058a8b5959b2d5d2fe348847a5a21b840
proofhash: 0000014da281be708a96c9d89efb2c1707cb6bd7838eb97b8312cac76282e3fd
target: 00000fa8ee0e0000000000000000000000000000000000000000000000000000
CBlock(hash=782039806d45cb037e7b07e74ec1637058a8b5959b2d5d2fe348847a5a21b840, ver=6, hashPrevBlock=74a4e46d294ce8880ab4f52e36a8239f55f5a28b9f3ad1b8439aa5f3de298bfd, hashMerkleRoot=ddc9251240bd996c2fca910c2992d73ad3fafe54012923bfd44a87079e616799, nTime=1524503117, nBits=1d00b1c6, nNonce=0, vtx=2, ...)
...
ERROR: AcceptBlock() : block's timestamp is too early
ERROR: ProcessBlock() : AcceptBlock FAILED
ERROR: CheckStake() : ProcessBlock, block not accepted
hash: 782039806d45cb037e7b07e74ec1637058a8b5959b2d5d2fe348847a5a21b840
proofhash: 0000014da281be708a96c9d89efb2c1707cb6bd7838eb97b8312cac76282e3fd
target: 00000fa8ee0e0000000000000000000000000000000000000000000000000000
CBlock(hash=782039806d45cb037e7b07e74ec1637058a8b5959b2d5d2fe348847a5a21b840, ver=6, hashPrevBlock=74a4e46d294ce8880ab4f52e36a8239f55f5a28b9f3ad1b8439aa5f3de298bfd, hashMerkleRoot=ddc9251240bd996c2fca910c2992d73ad3fafe54012923bfd44a87079e616799, nTime=1524503117, nBits=1d00b1c6, nNonce=0, vtx=2, ...)
...
ERROR: AcceptBlock() : block's timestamp is too early
ERROR: ProcessBlock() : AcceptBlock FAILED
ERROR: CheckStake() : ProcessBlock, block not accepted
Edit:
Yeah, guess there is something wrong with nTime/ntp.cpp? The following workaround 'fixed' my 'issue', but it's really... shady.
1) Close the UnitedSciFi client. Sync your system time.
2) Disable time syncing and set your local system time to current time + one hour.
3) Enable the NTP server on your local machine: https://www.interfacett.com/blogs/creating-standalone-ntp-server-windows/
4) Start the UnitedSciFi client.
PoS worked again.
Something wrong with the chain?
LPool: Last share 29 hours ago
Solo: Everything rejected
Also haven't seen a POS hit for a day or so.
Please check?
LPool: Last share 29 hours ago
Solo: Everything rejected
Also haven't seen a POS hit for a day or so.
Please check?
Yeah noticed same thing here, no POW on pool or solo, and have had decent stake inputs but no rewards since height 181996.
i'm noticing new blocks arriving timestamped 1 hour into the future the last couple days.
i turned off my daemon and going to wait a few days.
Something wrong with the chain?
LPool: Last share 29 hours ago
Solo: Everything rejected
Also haven't seen a POS hit for a day or so.
Please check?
LPool: Last share 29 hours ago
Solo: Everything rejected
Also haven't seen a POS hit for a day or so.
Please check?
Yeah noticed same thing here, no POW on pool or solo, and have had decent stake inputs but no rewards since height 181996.
Something wrong with the chain?
LPool: Last share 29 hours ago
Solo: Everything rejected
Also haven't seen a POS hit for a day or so.
Please check?
LPool: Last share 29 hours ago
Solo: Everything rejected
Also haven't seen a POS hit for a day or so.
Please check?
https://lpool.name/explorer/SCIFI , http://cryptoguru.tk/Blocks/index.php?Currency=SCIFI , my node and wallet seem to be on the same high.
But yes, http://cryptoguru.tk/Charts/index.php?Currency=SCIFI shows there was no PoW block since yesterday and PoS seems to be slow, difficulty looks fine, odd. Can confirm I had my last stake 10h ago which is uncommon.
Something wrong with the chain?
LPool: Last share 29 hours ago
Solo: Everything rejected
Also haven't seen a POS hit for a day or so.
Please check?
LPool: Last share 29 hours ago
Solo: Everything rejected
Also haven't seen a POS hit for a day or so.
Please check?
This project has pretty good ideas and practicality. I’m looking forward to joining in this
Soon I will try add SCIFI to Novaexchange, after they restart.
https://novaexchange.com/
https://novaexchange.com/
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