Dusty
Active Member
- Mar 14, 2016
- 362
- 1,172
That's my point: with a 10 minute block average interval the double spender can wait some minutes before sending the conflicting transaction, on the contrary, with (say) 1 minute blocks 20 to 30 seconds are more than enough to give the merchant a good confidence.i want to make it reasonably reliable to say that IF you haven't seen a double send within 10seonds and the TX fee is about right, there's a 99.9% chance it will confrim in the next block even if there is a double spend later.
So, while total security of the chain does not change with different block time, for zero conf txs that changes a lot, because the absolute time to wait for high confidence is much less.