> [...] control which Bitcoin blocks and transactions are relayed to the user and can delay or discard user’s transactions and blocks. Bear in mind that we can

> [...] control which Bitcoin blocks and transactions are relayed to the user and can delay or discard user’s transactions and blocks. Bear in mind that we can detect when a node does this, by monitoring it, and measuring whether blocks or transactions are withheld, kind of like in this paper: http://www.cs.kau.se/philwint/spoiled_onions/techreport.pdf http://www.cs.kau.se/philwint/spoiled_onions/techreport.pdf