The service is free? Or 5500 Satoshi's per message block?
For locating the messages, do you search for your Bitcoin address? Or is it a pre-pended identifier in the Blockchain?
Have you considered approaching Google to index the Blockchain?
Service is free. It is currently hardcoded to the user interface to have 5500 satoshis per output address as it was the minimum amount some time ago. However, right now the Bitcoin-core wallet lets you send 1500 satoshis to a single output at minimum. The CryptoGraffiti decoder does not care about the number of satoshis sent to an address, all it cares about is whether the address contains human readable text or not.
edit 2:
I locate messages by attempting to decode every BTC transaction that has been included in a new block. If I find any human readable text then I will store the transaction hash as a pointer to an "interesting" transaction. I haven't approached Google.
Two questions:
1. The date/time stamp on the latest messages on your site shows 2014/09/24. It is 10/24. Is this a programming typo?
2. If instant is selected, how long does it take for it to show on your website (assuming Blockchain.info shows the transaction)?
1. This is a typo that will be fixed in the next release.
2. Under normal conditions the message should show on CryptoGraffiti.info instantly (3-10 seconds). Heavy load or network lag could cause it to take longer.
Answer to #2 is after 1 confirmation.
Wrong, when instant is selected it will appear on CryptoGraffiti.info in 3-10 seconds.
edit: However, due to the bug in the current UI you would need to refresh the page yourself though.
New question:
I posted a message to the blockchain and it broke it into 4 separate messages. Why?
CryptoGraffiti.info considers 1 message to be encoded in a single bitcoin transaction. If you're using some other message writing service then it can happen that a single message gets written into multiple bitcoin transactions. Such messages cannot be intuitively extracted because there is no known standard to determine the order of those messages.
What might also be the case is that you failed to make a
send-to-many bitcoin transaction.