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Showing 2 of 2 results by cousbrdd
Post
Topic
Board Bitcoin Technical Support
Re: Unconfirmed Transaction
by
cousbrdd
on 29/11/2015, 20:33:43 UTC
Another attack...last 6 blocks (edit: and counting) have been hit.

Example: #385910 with 19125 fake sigOps.  The block is only 200KB despite a 5MB backlog (according to tradeblock).  It seems this attack is very effective.

Edit:
#385911 unaffected (enough high-fee legit txs)
#385912 = 18990 fake sigOps, 280KB.
#385913 = 18945 fake sigOps, 281KB.
#385914 = 17325 fake sigOps, 470KB.
...etc.

There is a DOS attack against the blockchain going on right now.  It is causing transactions to take longer than usual to confirm.

In order to pull of the attack the attacker has to pay a higher than average transaction fee.  They will eventually run out of money and the attack will stop, but in the meantime you can send your transactions with higher fees to make sure that your transactions get confirmed instead of the attackers (which will force the attacker to spend through their bitcoins even faster to maintain the attack).

This is very interesting... so is this the issue for every transaction at the moment paying 0.0001 ?
Post
Topic
Board Bitcoin Technical Support
Topic OP
Unconfirmed Transaction
by
cousbrdd
on 29/11/2015, 20:05:37 UTC
Hi,
I earlier brought 0.036 BTC from Coinbase, i have never had an issue with them before and the transaction is nearly always confirmed within 10 mins.

I sent 0.012 BTC to each of my Bitcoin addresses, this was 5 hours ago and the transaction is unconfirmed on all 3 addresses, I did pay the 0.0001 BTC charge.

Here are the 3 addresses i sent BTC too:

1N3M6kHTGdidAuFU8nWAqyqc6dnNUzcgW8
1HvubuW1TFjbkkVAcUNSJhSSKVKMbBcLWM
19EDDsRcopDPRp49g6VNHzMFqW8mUqN4Lv

This is the 4th time in just a couple of weeks, however the first with coinbase. I sent 0.1 BTC to a friend and the transaction never confirmed even though i paid 0.001 BTC charges, (10 X More then recommended ) the transaction eventually god reversed. This did not really give a good impression to my friend who i was introducing Bitcoin too.

Please can you let me know whats happening here, I'm starting to feel bitcoin is unreliable and slow.

Best Regards