{"slug":"room-temperature-claims","topic":"room-temperature-claims","title":"Room-Temperature Superconductivity Claims & Replication: State of the Field (October 2026)","summary":"Surveys room-temperature superconductivity claims from 2020 to 2026, including the carbonaceous sulfur hydride report and the nitrogen-doped lutetium hydride report (both since retracted by Nature), the LK-99 copper-substituted lead apatite claim and a 2025 high-pressure ternary hydride preprint, together with the replication record. The main takeaway is that, in the literature checked, no ambient-pressure room-temperature superconductor has been independently confirmed, and that zero resistance plus a bulk Meissner response, reproduced by independent groups, remains the decisive test.","version":1,"published_at":"2026-10-30","updated_at":"2026-10-30","stats":{"words":4180,"citations":35,"claims":28,"timeline":18,"benchmarks":11,"open_problems":6,"key_papers":15,"glossary":10},"verification":{"status":"verified","method":"independent AI fact-check against cited sources (evidence pack + web checks); automated citation resolution","claims_checked":28,"issues_fixed":32,"verified_at":"2026-10-30"},"ai_assisted":true,"price":{"usd":"0.20","protocol":"x402","network":"eip155:84532","asset":"USDC"},"url":"https://space-kitty.com/dossiers/room-temperature-claims","preview_url":"https://space-kitty.com/api/v1/dossiers/room-temperature-claims/preview","purchase_url":"https://space-kitty.com/api/v1/dossiers/room-temperature-claims","toc":[{"level":2,"text":"Executive summary","anchor":"executive-summary"},{"level":2,"text":"Background and core concepts","anchor":"background-and-core-concepts"},{"level":2,"text":"Timeline of key milestones","anchor":"timeline-of-key-milestones"},{"level":2,"text":"State of the art","anchor":"state-of-the-art"},{"level":3,"text":"Megabar hydrides and the conventional route","anchor":"megabar-hydrides-and-the-conventional-route"},{"level":3,"text":"Carbonaceous sulfur hydride (2020 claim)","anchor":"carbonaceous-sulfur-hydride-2020-claim"},{"level":3,"text":"Nitrogen-doped lutetium hydride (2023 claim)","anchor":"nitrogen-doped-lutetium-hydride-2023-claim"},{"level":3,"text":"LK-99 and copper-substituted lead apatite (2023 claim)","anchor":"lk-99-and-copper-substituted-lead-apatite-2023-claim"},{"level":3,"text":"Nickelates and diamond-sensor magnetometry","anchor":"nickelates-and-diamond-sensor-magnetometry"},{"level":3,"text":"Other preprint claims near ambient conditions","anchor":"other-preprint-claims-near-ambient-conditions"},{"level":3,"text":"Quantitative benchmarks","anchor":"quantitative-benchmarks"},{"level":2,"text":"Open problems and active debates","anchor":"open-problems-and-active-debates"},{"level":2,"text":"Major programs and players","anchor":"major-programs-and-players"},{"level":2,"text":"Outlook: what to watch (next 12-18 months)","anchor":"outlook-what-to-watch-next-12-18-months"},{"level":2,"text":"Key papers","anchor":"key-papers"},{"level":2,"text":"Glossary","anchor":"glossary"}],"sample_claims":["In the literature checked, no material has been independently confirmed as a superconductor at room temperature and ambient pressure.","The 2023 LK-99 preprints claimed a transition at or above 400 K at ambient pressure, supported by zero resistivity and a Meissner signal, and the claim has not been reproduced in the sources checked."],"includes":["markdown","claims","timeline","benchmarks","open_problems","key_papers","glossary","bibliography"],"citation_count":35,"how_to_buy":"GET https://space-kitty.com/api/v1/dossiers/room-temperature-claims with an x402 client ($0.20, USDC on Base Sepolia (testnet))."}