This is about the Claude.ai web platform, not its usage through the API.
You can see the current list here: https://www.anthropic.com/claude-ai-locations.
If I confirm it to be publicly available in Canada but they haven't updated that list yet, it will still resolve YES, though.
The question is specifically about its status as of December 31st, 2024. If it becomes publicly available but then Canada becomes blocked again afterwards, such that it's still blocked on December 31st, the market will resolve NO.
If Claude is rebranded to what seems like a sufficiently similar product/LLM, the question will shift to that product.
If Claude is not publicly available in any country as of EOY 2024, the question will resolve N/A.
Requiring a paid user subscription does not disqualify its status as "publicly available".