OP_CAT | Song A Day #5502

Channel:

Jonathan Mann

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74,400

Published on January 24, 2024 8:31:09 PM ● Video Link: https://www.youtube.com/watch?v=FzJTvAwg_is

Duration: 2:23

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33

I heard about this thing called OP_CAT and I thought the story sounded cool.

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OP_Cat was an opcode
Originally in bitcoin
Used to concatenate
Which is a fancy word for join

Satoshi Nakamoto
Said “hmm it’s cool but I don’t know though
Could be used to DDOS
I think it’s best if I remove this”

OP CAT
They wanna bring you back
Two data sets or elements
Put em back into the stack

Kitty cat, it would be so simple
It’s just 10 lines of code
It’s a fuzzy soft fork like
Taproot 3 years ago
Some people think
Things shouldn’t change
Bitcoin should ossify
But the taproot wizards
Have their Quantum Cats to codify

OP CAT
They wanna bring you back
Two data sets or elements
Put em back into the stack
OP CAT
Are you just what Bitcoin lacks?
The missing scripting thing to bring
All the innovation back

If stack size under 2 return false
Valtype and vch 1 stack top minus 2
Valtype and vch 2 stack top minus 1
vch 1 insert vch 1 dot end vch 2 begin
Vch 2 dot end stack pop back
If stack top minus one dot size over
5000 return false

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