A cat written into Bitcoin by Satoshi himself hidden in the code since 2009.
Disabled in 2010, it vanished for years.
Now, the cat wakes up.
OP_CAT was an opcode in Bitcoin’s early script language that joined two data values on the stack.
Satoshi wrote the cat. We run it togetherCA :
0x9fd58d46a6e2168e2478de0ecc1515bd64134444