No this is the shoulder of the fermentation bottle, i only started this stout on Monday.
The bit in question is just left of the light reflection.
Sorry my iPad isn't a very good camera.
Yep, nothing wrong here. That's just the remains of your krausen from when the vigorous fermentation was going on. Totally normal and fine. Enjoy - it looks like it'll be a tasty beer.
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It goes a little crazy generating yeasty foam during the most active phase of fermentation (this is called krausen), and leaves that residue behind after the krausen falls back into the beer.