Must exist as a Manifold Artifact prior to 2026.
Must sell in some sort of public and verifiable fashion, such as eBay auction or at Manifest. The sale must not further encumber either the buyer or the seller; for example, no binding agreement to resell it back to manipulate prices. Money / mana laundering is fine, shenanigans are not.
Artifacts include, but might not be limited to:
https://manifold.markets/topic/certified-manifold-artifacts
Update 2025-12-07 (PST) (AI summary of creator comment): The creator will curate answers lightly for notability and plans to turn off the ability to add more answers sometime shortly into the New Year (early 2025).
Update 2025-12-07 (PST) (AI summary of creator comment): If no evidence can be found that any Manifold Artifact changed hands during 2026, the market will resolve N/A.
Update 2025-12-07 (PST) (AI summary of creator comment): If multiple bottles exist associated with BenS or Bayesian, they will need separate answers added to the market (rather than being grouped under a single answer).
Update 2025-12-07 (PST) (AI summary of creator comment): For comparing sales made in mana versus legal tender, an exchange rate of M160 = $1 will be used (subject to potential adjustment based on community input).
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@Quroe We'll come up with an exchange rate. I propose M160 = $1 but would be open to other suggestions.
@EvanDaniel Either the BenS or Bayesian one. (If there are new bottles of relevance, they'll need their own answer added.)
@EvanDaniel If I am unable to find evidence that any Manifold Artifact changed hands during the year.