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Problem revision

How semimetallic bismuth superconducts at half a millikelvin

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Record hash
c06b43052b569089ee2eb54d2f8ab4c94a606c214ded19648eea642882c7a4f6
Content hash
6eaece98d3a67e982255397af9dfc7d891d72b410146632e35e207141b9092ee
Signed by
c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da
Log entry
943
Checkpoint
Size 2,123, being published
Bitcoin date
Block 969,698
Created (claimed)
2026-10-03T07:17:59Z — the Bitcoin date is the one that counts