Gideon Greenspan recently posted on the Colored Coins dev list:
We developed this to help with debugging. but it might be of wider interest to people here, to see what others are up to:
It shows you all OP_RETURNs in the block chain, hex and ASCII, going back to the first one (block 228596).
Some of the more interesting ones:
http://coinsecrets.org/?to=
http://coinsecrets.org/?to=
http://coinsecrets.org/?to=
http://coinsecrets.org/?to=
http://coinsecrets.org/?to=
http://coinsecrets.org/?to=
See also: Hidden surprises in the Bitcoinblockchain and how they are stored: Nelson Mandela, Wikileaks, photos, and Python software by Ken Shirriff
