I suspect some nodes could just collect transaction fees without forwarding the request to the "hub". Even worse, the node could send a fake transaction to the "hub". It takes bitcoin miners 10 minutes to confirm a transactions, so the Nxt network would not know the node sent a fake transaction for at least 10 minutes -- at least after one confirmation on bitcoin's blockchain.
I;m sorry but the above is incorrect.....Nxt block will be every 60,000ms == 1 minutes....we can even reduce it to 10 seconds.
The topic was bitcoin transactions that take 10 minutes on average for one confirmation. There is no reason to believe we can trust anonymous Nxt nodes to perform bitcoin transactions by forwarding them to some "hubs" without serious security and technical implications
What if something like:
https://en.bitcoin.it/wiki/Zero_Knowledge_Contingent_Payment#Zero_knowledge_proof_to_bindingor
https://en.bitcoin.it/wiki/Atomic_cross-chain_tradingwas implemented in the NXT core? Granted I dont understand how we can effectively escrow other crypto balance, but I am hopeful that there is some multisig or zeroknowledge method that achieves this effect.
I guess we can always have Evil Bob modifying the NXT core, so really the key is to have a cryptographically secure way to achieve the cross chain trading.
I dont claim to understand either of the above docs, but I think it might be possible for a trustless solution that can be trusted. Hey, I never said it would be easy.
James
Edit: what the CIYAM says below