Week 5 (Feb 11 - Feb 17 )
signature campaign
1. https://bitcointalk.org/index.php?topic=5072399.msg49750005#msg49750005
2. https://bitcointalk.org/index.php?topic=5100221.msg49752350#msg49752350
3. https://bitcointalk.org/index.php?topic=5097446.msg49752367#msg49752367
4. https://bitcointalk.org/index.php?topic=5097440.msg49752392#msg49752392