> shouldn't be possible It is restricted by the standard Bitcoin client implementation. Neither the transaction scripting language[0] nor the transaction[1] re

> shouldn't be possible It is restricted by the standard Bitcoin client implementation. Neither the transaction scripting language[0] nor the transaction[1] restricts it, so you would need to do it yourself or write a custom client to embed a message. [0] https://en.bitcoin.it/wiki/Script https://en.bitcoin.it/wiki/Script [1] https://en.bitcoin.it/wiki/Transaction#Output https://en.bitcoin.it/wiki/Transaction#Output