is there a way to check transaction id's for a multi sig transaction and see all btc addresses involved?? the way hansa ran multisig for the week i was there seemed fishy
my theory: for the last few days, since atleast monday- when BTC got sent to the temporary "escrow" that holds the funds while awaiting vendor to accept the order, instead of using the public key the user provided, i think hansa used 2 of their own addresses to sign with the vendors as the 3rd. we dont see how the transaction is made internally or what addresses is used, we basically took their word for it.., so unless theres some way that u can see all addresses involved in a 2/3 transaction on coinb.in or blockchain, we have no way to verify that hansa was ACTUALLY signing transactions with the user-provided public key. tried manually signing to release for my vendor with the private key associated with the multi-sig address i provided to make the account- signed but wouldnt register as part of the transaction when trying to verify and broadcast
tl;dr hansa had us fooled- hasnt been using users provided public key for 2/3 transactions, instead providing 2 keys they controlled with the vendors key
fuck
YES, use the redeem script. I have a thread running about this. Basically Hansa did a poor job in educating the users how to properly verify multisig addresses. https://www.reddit.com/r/DarkNetMarkets/comments/6oi8ez/hansas_multisig_implementation_curious/