{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:PJK4B4F7Y27TRWOF6FU72JO4DO","short_pith_number":"pith:PJK4B4F7","schema_version":"1.0","canonical_sha256":"7a55c0f0bfc6bf38d9c5f169fd25dc1b9062c9a8105129a00142a93348689364","source":{"kind":"arxiv","id":"1512.07197","version":1},"attestation_state":"computed","paper":{"title":"Measurements of water surface snow lines in classical protoplanetary disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Andrea Banzatti, Colette Salyk, Geoffrey A. Blake, Joan R. Najita, John S. Carr, Ke Zhang, Klaus M. Pontoppidan, Sandra M. Blevins","submitted_at":"2015-12-22T18:39:21Z","abstract_excerpt":"We present deep Herschel-PACS spectroscopy of far-infrared water lines from a sample of four protoplanetary disks around solar-mass stars, selected to have strong water emission at mid-infrared wavelengths. By combining the new Herschel spectra with archival Spitzer-IRS spectroscopy, we retrieve a parameterized radial surface water vapor distribution from 0.1-100 AU using two-dimensional dust and line radiative transfer modeling. The surface water distribution is modeled with a step model comprising of a constant inner and outer relative water abundance and a critical radius at which the surfa"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1512.07197","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2015-12-22T18:39:21Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"4c5cab3f41eb7380b5315d16fdb94e74345e2b87e99445af1f00051f7e2ac84f","abstract_canon_sha256":"f9515dd48ea3d0164579a26dbb2175fa558dc46542638e95262bd385fe05c4a0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:20:40.897746Z","signature_b64":"Ci83nZ7CT3pi0tXE31E4hmB2/7M9/Qy5JT1NIV4s5cHHOk7y1lsPBaZdz/xiwNqlNdA5h080tTtUNHoZDPSACA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a55c0f0bfc6bf38d9c5f169fd25dc1b9062c9a8105129a00142a93348689364","last_reissued_at":"2026-05-18T01:20:40.897257Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:20:40.897257Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Measurements of water surface snow lines in classical protoplanetary disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Andrea Banzatti, Colette Salyk, Geoffrey A. Blake, Joan R. Najita, John S. Carr, Ke Zhang, Klaus M. Pontoppidan, Sandra M. Blevins","submitted_at":"2015-12-22T18:39:21Z","abstract_excerpt":"We present deep Herschel-PACS spectroscopy of far-infrared water lines from a sample of four protoplanetary disks around solar-mass stars, selected to have strong water emission at mid-infrared wavelengths. By combining the new Herschel spectra with archival Spitzer-IRS spectroscopy, we retrieve a parameterized radial surface water vapor distribution from 0.1-100 AU using two-dimensional dust and line radiative transfer modeling. The surface water distribution is modeled with a step model comprising of a constant inner and outer relative water abundance and a critical radius at which the surfa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1512.07197","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1512.07197","created_at":"2026-05-18T01:20:40.897321+00:00"},{"alias_kind":"arxiv_version","alias_value":"1512.07197v1","created_at":"2026-05-18T01:20:40.897321+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1512.07197","created_at":"2026-05-18T01:20:40.897321+00:00"},{"alias_kind":"pith_short_12","alias_value":"PJK4B4F7Y27T","created_at":"2026-05-18T12:29:37.295048+00:00"},{"alias_kind":"pith_short_16","alias_value":"PJK4B4F7Y27TRWOF","created_at":"2026-05-18T12:29:37.295048+00:00"},{"alias_kind":"pith_short_8","alias_value":"PJK4B4F7","created_at":"2026-05-18T12:29:37.295048+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO","json":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO.json","graph_json":"https://pith.science/api/pith-number/PJK4B4F7Y27TRWOF6FU72JO4DO/graph.json","events_json":"https://pith.science/api/pith-number/PJK4B4F7Y27TRWOF6FU72JO4DO/events.json","paper":"https://pith.science/paper/PJK4B4F7"},"agent_actions":{"view_html":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO","download_json":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO.json","view_paper":"https://pith.science/paper/PJK4B4F7","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1512.07197&json=true","fetch_graph":"https://pith.science/api/pith-number/PJK4B4F7Y27TRWOF6FU72JO4DO/graph.json","fetch_events":"https://pith.science/api/pith-number/PJK4B4F7Y27TRWOF6FU72JO4DO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO/action/storage_attestation","attest_author":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO/action/author_attestation","sign_citation":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO/action/citation_signature","submit_replication":"https://pith.science/pith/PJK4B4F7Y27TRWOF6FU72JO4DO/action/replication_record"}},"created_at":"2026-05-18T01:20:40.897321+00:00","updated_at":"2026-05-18T01:20:40.897321+00:00"}