Quote from: fbueller on February 21, 2014, 11:10:41 AM

Quote from: yakov on February 18, 2014, 12:13:18 PM

What we need: a graph showing the number of transactions to and from 2-of-3 multisig addresses plotted against time.

I'm working on this at the moment. Parsing the blockchain is taking forever.. Took an hour to get to 83000. Then a further 19 hours to get to 128500.. I'm recording txid/vout/address/blocktime for all payments to scripthash addresses (version byte \x05).

Once I have this I should get a nice plot of payments to multisig addresses, and then rescan looking for vins spent from multisig addresses. There'll probably be a good deal of lost BTC sitting at these addresses.

That's fantastic.
Multisigs are often used for trustless escrow, I guess many spends from them will be to two addresses. Another useful measure, if it's not too much trouble, could be to plot the proportion of multisig spends to exactly two addresses, and out of those, the % fee for arbitration. So in the tx I linked above the fee was 8%. Would be interesting to see the going rate.

Quote from: jcrubino on February 22, 2014, 02:24:25 AM

You can list multiple addresses and spends in the output of a transaction.

Make sure to add your own as the multisig raw transaction requires a change address.

The change address is the address an extra coins go to from the transactions.

It was not explicitly covered in the multisig section of the wiki last time I looked and I lost all my coins as a result... all my testnet coins which are still a bother to get without a gpu rig.

donations for testnet coins mfZqJvCNgJPL2y84KgamRcxUw9SUMPmej9 if you find this helpful.

At least it was only testnet Grin

You can get them from this faucet https://tpfaucet.appspot.com/

That's true for every transaction by the way not just multisigs. Some unlucky people have lost serious money that way.