Question 01
What is an ISCC, and why does everyone in this space keep saying it?
A code a recording earns from its own sound. Nobody assigns it. Run the audio through the open math and the code comes out. Run the same file through it in Tokyo and the same code comes out there too.
Think of it as the difference between a face and a name tag. A name tag can be peeled off. A face just is. Strip the file's title, delete the credits, rename it to final_final_2.mp3: the sound part of its code stays the same, so the recording can still be recognized.
The reason lawyers and platforms take it seriously: it is an ISO standard, from the same standards family that runs the ISRC. Machines that have never heard of you can compute it, and when a registry holds your terms, find them sitting right next to it.
One honest line: the code says which recording this is. Whose it is, and what the rules are, come from the record we file beside it. Together they buy you a catalog machines can recognize without asking you first, which is exactly the audience you need when the machines are the ones doing the scraping.