Updates. By Jeff Kreeftmeijer

Replying to /2018/12/15/got-it-this-is-how.html

To get the local ID for a Mastodon status on another instance, use the search API, or the search bar in your web client.

Searching for a status URL (like mastodon.social/@jkreeftmeijer/101236371751163533) returns the status on your instance, including the local ID.