Ethereum Contract Free Software Licensing

Here’s a simple example of a contract that is licensed under the GNU Affero General Public License:

LICENSE = ["Copyright 2014 Rob Myers", "Licensed GNU AGPL V3+"]
SOURCE = ["https:\/\/gitorious.org\/robmyers\/", "artworld-ethereum/"]

// Make sure we have enough gas to run the contact
if tx.value < tx.basefee * 100:
    // If not, stop
    stop

if msg.data[0] == "license":
   return(LICENSE, 2)
else if msg.data[0] == "source":
   return(SOURCE, 2)
else:
    // Return false
    return(0)

Assuming that being part of the blockchain doesn’t clash with the AGPL. Anyone? 🙂