{"paper":{"title":"Novel topological subclasses of a magnetic black hole in causal nonlinear electrodynamics","arxiv_id":"2610.36796","primary_cat":"gr-qc","submitted_at":"2026-10-27T07:59:22+00:00","version_compiled":"v1"},"notice":"Every quoted sentence is the authors' text from the arXiv listing abstract. Labels and probabilities are the outputs of classifier-1.13.0 on the question bank abstract-p1-20260923, exactly as returned. 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ensemble.","hedge":{"p":0.95,"label":"asserted"},"own_p":0.92,"main_claim_p":0.02,"quantitative":false,"quantitative_p":0.11,"role_probabilities":{"gap":0.0,"method":0.98,"result":0.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.02,"interpretation":0.0}},{"i":2,"p":0.95,"id":"s2","own":true,"role":"result","text":"We identify four representative defect-curve profiles, including realizations of the conjectured $W^{0+\\leftrightarrow1-}$ class and $\\overline{W}^{1-}$ subclass, as well as a new thermodynamic topological subclass, $\\overline{W}^{0+\\leftrightarrow1-}$.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.95,"main_claim_p":0.32,"quantitative":true,"quantitative_p":0.96,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.95,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.05,"interpretation":0.0}},{"i":3,"p":0.99,"id":"s3","own":true,"role":"result","text":"This new subclass features paired generation and annihilation points, with unstable innermost and outermost branches.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.88,"main_claim_p":0.1,"quantitative":false,"quantitative_p":0.31,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.99,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.01,"interpretation":0.0}},{"i":4,"p":1.0,"id":"s4","own":true,"role":"result","text":"As the auxiliary inverse temperature increases, the system evolves from two equilibrium states to three and then back to one, with an unstable small-black-hole defect entering through the physical lower boundary and changing the global topological number from $W=0$ to $W=-1$.","hedge":{"p":1.0,"label":"asserted"},"own_p":0.91,"main_claim_p":0.18,"quantitative":true,"quantitative_p":0.96,"role_probabilities":{"gap":0.0,"method":0.0,"result":1.0,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.0}},{"i":5,"p":0.99,"id":"s5","own":true,"role":"interpretation","text":"This boundary-induced change signals a thermodynamic topological phase transition.","hedge":{"p":0.95,"label":"asserted"},"own_p":0.79,"main_claim_p":0.22,"quantitative":false,"quantitative_p":0.05,"role_probabilities":{"gap":0.0,"method":0.0,"result":0.01,"background":0.0,"limitation":0.0,"future_work":0.0,"contribution":0.0,"interpretation":0.99}},{"i":6,"p":0.99,"id":"s6","own":true,"role":"interpretation","text":"These results show that the same inverse-temperature endpoint behavior and winding-number sequence from small to large black holes can accompany different defect evolution, highlighting the role of the physical horizon boundary in thermodynamic topological 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