Hello longyenthanh,
yes this is correct. There is no minimum but it is important to be active. We also have updated the links and now your filled registration is visible in the right spreadsheet so I suppose this is solved now
The bounty will last 8 weeks.
Thanks for the clarification.
I checked the spreadsheet and I'm actually in the correct tab. Thank you.
I also checked the participants of the signature campaign. There are now 15 participants in total (including me). The strange thing is that NOBODY (except me) wear your signature.
Do the signature campaign participants also have to make "Weekly Report"? More easy is to just one time click on username history, than check each link to post separately.
EDIT
I forgot to post authentication:
#JOIN & #Proof of authentication
"Name" of Bounty Campaign - Signature
Bitcointalk username: longyenthanh
Bitcointalk profile link:
https://bitcointalk.org/index.php?action=profile;u=259895