{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"a732141bee7554495f27b75ba8968802e9a5d1a1ca15aac2b4168c436b1797ec","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":["ai:gpt-5.5"],"kind":"seed"},"parents":["c3536a79406dbb45b846597be154d0561768a612b2c2fefee936b243db5f2fa3","ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b"],"salt":"b933d7f3e717c04664a2fcab06c6ccbd1a6030ca76bd28d3cd454fc1ea001695","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"identification","assisted_by":["ai:gpt-5.5"],"external_id":"earth.giant-planet-interiors.metallicity-inversion","kind":"well-posed","literature_status":"open","n":"2","parents":[],"plain":"The Galileo probe measured an atmosphere enriched in heavy elements, but many interior models that fit Juno's gravity need a less enriched outer layer. Either the models or the assumed relation between pressure, temperature and density of hydrogen-helium (the equation of state) is wrong, or the planet has an unexpected layering.","posed_since":"","precise":"The Galileo probe found atmospheric heavy-element enrichment of roughly three times solar, while many Juno-fitting interior models require a lower $Z$ in the outer envelope, implying an inverted $Z$ gradient. Determine whether this tension arises from hydrogen-helium equation-of-state errors, deep wind effects on gravity, or a real compositional inversion. An answer is an interior model with atmospheric $Z$ that fits $J_2n$ and $k_2$, or a demonstration that the inversion is required.","problem_ref":"c3536a79406dbb45b846597be154d0561768a612b2c2fefee936b243db5f2fa3","references":"","settled_by":"Interior models using independently validated equations of state and wind-corrected gravity harmonics that either remove or require the inversion.","status_note":"","title":"Why do Jupiter models want fewer heavy elements than its atmosphere shows?","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"512489ac85e42c1af6907d9964f599eec613e01334199cc7ab712acadf1183e3","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"a105633827d0aca6297fc475af120ce0142e09f20adadf58c300d25134cddc90","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"zcjYeZYB3wfrJcMTY6Dgt5owF4eMe-3t92bm1ULlkAi4za1f9b4STw0I10DjedXoLsPD1QE-uslTcbViBZQOCw"},"schema":"pubphys.envelope/1"},"record_hash":"512489ac85e42c1af6907d9964f599eec613e01334199cc7ab712acadf1183e3","leaf_index":3206}