Heads or Tails?

[scintill]

scintill,

blockchain.info offers a "Time received" for each transaction. Any chance it gets that info from the blockchain? (But it doesn't seem like it does to me)

Blocks have a timestamp, but that time is probably taken from when blockchain.info's node(s) first saw the transaction, as they do for IP addresses they saw blocks/transactions from.

[1714848028]

1714848028

[1714848028]

1714848028

[1714848028]

1714848028

[1714848028]

1714848028

[1714848028]

1714848028

[goodlord666]

Yeah that's what I expected. It really does look like a transaction doesn't offer data random enough for a reliable coinflip. What a bummer, really.

Out of pure interest:
where does a block get its timestamp from?

[scintill]

Yeah that's what I expected. It really does look like a transaction doesn't offer data random enough for a reliable coinflip. What a bummer, really.

Out of pure interest:
where does a block get its timestamp from?

According to Joel Katz in this thread, miners/pools set the timestamp.  The Satoshi client seems to require blocks broadcast to be not more than 2 hours into the future, and not earlier than the median of the last 11 blocks' timestamps.

[goodlord666]

Ingenious.

[SRoulette]

according to our game there is a 1/100 chance of it landing on its side