back to topic please. then still no answers.

What is the multisig address that the escrow funds were being held in?

How did the funds end up on Bittrex?

well, then. no answer => no multisig address that the escrow funds are in.
the address provided in the ANN is "empty".

Multi-Sig BTC escrow address for the NVO crowdsale:
354jirex7gkFxMiNmN45SxyMxSUsdGcrsf