Investigate unintentional fork on 25th of December 2017
Summary
On 25th of December 00:27 chain split happened on the block 1683398. In the morning December 26th the team has noticed that the hashrate went down to 98 %. The team reacted and tried to fix the issue.
Crown-core environment info
Ubuntu 16.04
Crown-core application info
v0.12.3.0
Relevant logs and/or screenshots
Bittrex deposits: 1000+TX+from+12172018.txt
Logs: https://drive.google.com/drive/folders/13aTL_OuPxzxcW1j_ZTULaxiyv6uhBCqo?usp=sharing
From bittrex logs
2017-12-26 13:14:35 CBudgetManager::FillBlockPayee - Budget payment to Dev fund for 0
2017-12-26 13:14:35 CreateNewBlock(): total size 9054
2017-12-26 13:14:35 Invalid budget payment detected CTransaction(hash=878dbfc33a, ver=1, vin.size=1, vout.size=2, nLockTime=0)
CTxIn(COutPoint(0000000000000000000000000000000000000000000000000000000000000000, 4294967295), coinbase 0340b51900)
CTxOut(nValue=9.00094443, scriptPubKey=OP_DUP OP_HASH160 931e75b937df)
CTxOut(nValue=43200.00000000, scriptPubKey=OP_DUP OP_HASH160 409e780f1a0a)
Links/references
Announcements: https://bitcointalk.org/index.php?topic=815487.msg27002131#msg27002131
Full fork report: https://goo.gl/Whjgx4
Possible solutions
In the report
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information