Blockchain security tracking/colored coins/smart contracts - short python script

[bitfair]

Update

The source code has been updated in OP - the new version includes the functions to include a transaction fee from an (uncolored!) address in your standard/satoshi-client wallet when transferring assets so that the transaction is more likely to confirm more quickly (command-line option -w <fee>, where <fee> is the fee you want to pay in BTC, e.g. -w 0.005 for half a bitcent).

Also, the tracking of colored coins is now also believed to be compatible with other approaches for "order-based" tracking, such as the one used in killerstorm's modified Satoshi client (however, I still want to build up a bunch of test-cases to see if the clients interpret all the cases in the same way).

Next, I think it is time to create ample test-cases, and tidy up the code - it has turned into a bit of a spaghetti-ball.

[1714927947]

1714927947

[bitfair]

Will your coloured coins work with this 'coloured coin stock market project' - https://bitcointalk.org/index.php?topic=118672.0

According to my understanding of killerstorm's approach(es), there is no reason to believe that the approach in this script should be incompatible.

But it is difficult to be sure until there are actual implementations (or detailed specs), so in the end the script might require modifications to be compatible.

[matthewh3]

Can the dividends automatically be forwarded to a separate wallet address and if it had a list of dividend wallet address built in would you be able to edit it for when shares are sold.  Also could your script work with Electrum or even possibly blockchain.info/wallet    Sorry if that sounds stupid  

Edit:  Having to download the full blockchain to verify your coloured coins will hinder its adoption.  Many people are now using thin-clients rather than full blown desktop PC's now.  Having an Electrum version or even a hack of blockchain.info/wallet would be good.

[jtimon]

Update

The source code has been updated in OP - the new version includes the functions to include a transaction fee from an (uncolored!) address in your standard/satoshi-client wallet when transferring assets so that the transaction is more likely to confirm more quickly

Great!!
Does it support mutliple trades (Ripple)?
For example...

(A) 100 btc -> (B) 1 satoshiB -> (C) 1 satoshiC -> (D)

or circular trades...

(A) 100 btc -> (B) 1 satoshiB -> (C) 1 satoshiC -> (D) 1 satoshiD -> (A)

That would be a decentralized Ripple implementation.