When was the paper of bitcoin announced? When examining about this, it is said that many are November 1, 2008, but on the other hand, there are sites that are on October 31st. Which one is correct?
According to the mailing list archives, the mailing list received Satoshi's email at Fri Oct 31 14:10:00 EDT 2008. However the mailing list is moderated so perhaps the email was not received by everyone until a day later on November 1st. The first response to the email was sent on November 2nd, so it may be that the email was not forwarded to the list for a day or so.