lets call dave the genesis block(0) of a chain /network involving jeff.. where jeff is block(1)
nothing stops dave from mentioning claire
where claire becomes part of a new network with a dave(0)->claire(1)
where claire can then sign a message to mike(2)
and so on
I know why you didn't understand it. As we said that it is a new sort of 'NFT', it doesn't work like the regular one. There is a 'signature chain' protocol (rules) and one main point in these rules is that one address can generate only one 'signature chain'. Yes, someone who generated one 'signature chain' (in your case dave->jeff) can generate another 'signature chain' (in your case dave->claire) that will be stored on the Bitcoin blockchain. But, another rule says that only the first seen 'signature chain' on the Bitcoin blockchain is the valid one. Very simple rules. But it works. Dave could generate thousands of 'signature chains' after the first one that are stored on the Bitcoin blockchain. But only one 'signature chain' is valid, namely the first one (in your case dave->jeff).
yes the jeff network wont like claire(1) and reject claire from JEFFS network chain.. but..
dave is still making a new CHAIN and new network with claire away from jeffs network
and jeff cant stop dave making a new chain. jeff can only stop claire from being seen in jeffs network
Yes, that's it. You can't stop someone who has generated a 'signature chain' to generate another 'signature chain'. But, it is all stored on the Bitcoin blockchain. And only the first seen on the Bitcoin blockchain is the valid one that will be accepted by the participants of this new sort of 'NFT' -> the 'signature chain'. If someone wanted to give you a 'signature chain', so the Bitcoin blockchain will be checked whether it is a valid one. So simple. It works.
There will be lots of void 'signature chains' on the Bitcoin blockchain, but who would want them. You can check easily if they are valid or not.
I created a void 'signature chain' to explain it:
Yesterday I transferred a 'siganture chain' from address 1MAP7AKiN5Ddce82VE8eFheFfyQ8iffvmV to 14ivWoBRgpfMbyiWqyjuDFnch6sGpsxKTV (user yhiaali3)
We can check the Bitcoin blockchain for address 1MAP7AKiN5Ddce82VE8eFheFfyQ8iffvmV if it is valid or not. We will see that 1MAP7AKiN5Ddce82VE8eFheFfyQ8iffvmV made a valid 'signature transaction' on block 766,199, so the new owner for this 'signature chain' is 14ivWoBRgpfMbyiWqyjuDFnch6sGpsxKTV (user yhiaali3).
Today I generated a new 'signature chain' from address 1MAP7AKiN5Ddce82VE8eFheFfyQ8iffvmV to 1J777xxcpV3kNwdgkU7ckVM4RrSHvYjcrc that is stored on block 766,348. But anyone can check on the Bitcoin blockchian that there is a 'signature chain' for 1MAP7AKiN5Ddce82VE8eFheFfyQ8iffvmV that was done earlier. So, that new 'signature chain' is void. It is there, but we can say exactly what is valid and what is not. Now the new owner of the void 'signature chain' can transfer that void 'signature chain' to someone else. Nothing stops them to do that as you said it. But the new owner would get a void 'signature chain'. Who would pay for it? We can check this. So simple. It works.
Anyone can download Beeple's "Everydays - The First 5000 Days" and make an NFT out of it. Who would buy it? Only the one produced by Beeple's address is valid, that is the NFT rule. And in our case it is the first seen 'signature chain' on the Bitcoin blockchain that is valid.
What if Beeple produced the same "Everydays - The First 5000 Days" NFT and said that this new one is the original / valid NFT? The community wouldn't accept it. This is how it works and this is how 'signature chain' works.