No, each sheet is signed by it's own key. The key is shared in the `p` tag, encrypted to each editor in the list. With the key, each editor can then change the replaceable.
Discussion
What your "p tag" looks like in Amethyst.

No, each sheet is signed by it's own key. The key is shared in the `p` tag, encrypted to each editor in the list. With the key, each editor can then change the replaceable.
What your "p tag" looks like in Amethyst.
