Author

Topic: Time order of blocks (Read 703 times)

legendary
Activity: 3710
Merit: 1170
www.Crypto.Games: Multiple coins, multiple games
April 12, 2015, 08:19:58 AM
#5
I also seen some blocks like this (and I had seen some of those are 10 minutes older than the last block) and it is normal (because there are different system time in different miners, typically a difference of maximum 6 minutes in my experience).
legendary
Activity: 3416
Merit: 1912
The Concierge of Crypto
April 12, 2015, 01:32:33 AM
#4
I think blocks have to be within a couple of hours of the "correct" time, which is an average or something of the most recent blocks. So if miners clocks are off by a few minutes, that's perfectly alright; but they can't be off by more than several hours or the rest of the network will simply reject the block.

In general, time moves forward in the blockchain.
newbie
Activity: 17
Merit: 0
April 12, 2015, 12:33:45 AM
#3
thanks danny;
legendary
Activity: 3472
Merit: 4801
April 11, 2015, 11:58:45 PM
#2
Just noticed on blockchain: block 351762  is older than block 351761 - what is going on ?

Timestamps on blocks are not exact.  Protocol allows the miner to adjust the timestamp a bit in case the clock on his computer doesn't EXACTLY match someone else's clock.  Therefore when two blocks happen quickly one after the other, sometimes the earlier block can have a later timestamp.

This isn't new.  It's always happened.  Not a big deal.  Protocol is designed to handle it just fine.  The order of the blocks determines the order of the transactions no matter what the timestamp says.
newbie
Activity: 17
Merit: 0
April 11, 2015, 11:00:37 PM
#1
Just noticed on blockchain: block 351762  is older than block 351761 - what is going on ?
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