{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"6608ba5f6a32e07498cea0ed60407674bc1494654a9a3b8f7405432479b23c67","created":"2026-10-03T07:17:50Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"3f39dc62e99b2d45c9b7acae52556eaf31954f2542aaefb09aae3492261c1ec3","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"bio.supercooled-water","field":"bio","n":"1","review_cite":"P. Gallo, K. Amann-Winkel, C. A. Angell, et al., Water: A tale of two liquids, Chemical Reviews, 2016","review_link":"https://doi.org/10.1021/acs.chemrev.5b00750","review_verified":"true","summary":"Water behaves unlike almost every other liquid: it is densest at 4 C, and its compressibility and heat capacity rise as it is cooled below freezing. One explanation is that cold water is a mixture of two distinct liquids that separate at a hidden critical point, but rapid ice formation makes the key region hard to reach.","title":"Liquid-liquid transition and anomalies of supercooled water","topic_ref":null,"why":"Water's anomalies matter for climate, biology and cryopreservation, and settling their origin tests the theory of liquids with directional bonds."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"b1cabd44310015cc3941b7af0461d416e3c8ad464f6c3ad6f6fdbf54214bd97e","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"f4f0a7638e279fe8c9be8f633546a2871c87bc583a47543127b12938e6ae1918","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"58G3_5KUv31E3Z6N1aTUDS2qC3GTMBCi_xJwXltEkZilKdDVuBBPtwB1VeamfLP_EHl849gRRIm2wYLJQNEBBw"},"schema":"pubphys.envelope/1"},"record_hash":"b1cabd44310015cc3941b7af0461d416e3c8ad464f6c3ad6f6fdbf54214bd97e","leaf_index":102}