In more detail, let’s suppose Alice wants to give Bob an infocoin. As before, she signs the message “I, Alice, am giving Bob one infocoin, with serial number 1234567”, and gives the signed message to Bob. Also as before, Bob does a sanity check, using his copy of the block chain to check that, indeed, the coin currently belongs to Alice. But at that point the protocol is modified. Bob doesn’t just go ahead and accept the transaction. Instead, he broadcasts Alice’s message to the entire network. Other members of the network check to see whether Alice owns that infocoin. If so, they broadcast the message “Yes, Alice owns infocoin 1234567, it can now be transferred to Bob.” Once enough people have broadcast that message, everyone updates their block chain to show that infocoin 1234567 now belongs to Bob, and the transaction is complete.
Make sure you learn the band score requirements for each band score in writing and speaking. You can find this information on the main pages of this blog. Prepare ideas for all common topics in writing and speaking – see main pages. Remember to add lots of extra information to answers in speaking – the examiner only wants to hear your English language, not your ideas. In writing, review all models, paragraphing, linking etc. Also think about my advanced writing task 2 lessons: http:///IELTSLizStore
All the best