Quote from: hank on July 30, 2011, 12:10:18 AM

Quote from: JoelKatz on July 29, 2011, 11:28:09 PM

If you initiate a transaction, wait a few hours, and the transaction doesn't appear in block explorer, then the coins weren't sent. Placing a transaction in the public hash chain is essentially the definition of "sent" in this context.

Exactly, for Mt. Fun and I MyBitcoin is deducting funds from our accounts but not initiating a transaction to the recipient.

Exactly correct. The funds sent appear in the block explorer and arrived in Mybitcoin. Then I sent them from Mybitcoin to another wallet and they never got there and the transaction is not in the block explorer but Mybitcoin records the payment as sent.