{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:O7C5SOMUVSAFJ3HCYGCFAPZ6MC","short_pith_number":"pith:O7C5SOMU","schema_version":"1.0","canonical_sha256":"77c5d93994ac8054ece2c184503f3e609301d005622ea131f8e60013044d58f4","source":{"kind":"arxiv","id":"2101.01201","version":3},"attestation_state":"computed","paper":{"title":"AT2017gfo: Bayesian inference and model selection of multi-component kilonovae and constraints on the neutron star equation of state","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Albino Perego, David Radice, Diego Vescovi, Matteo Breschi, Sebastiano Bernuzzi, Vsevolod Nedora, Walter Del Pozzo","submitted_at":"2021-01-04T19:05:16Z","abstract_excerpt":"The joint detection of the gravitational wave GW170817, of the short $\\gamma$-ray burst GRB170817A and of the kilonova AT2017gfo, generated by the the binary neutron star merger observed on August 17, 2017, is a milestone in multimessenger astronomy and provides new constraints on the neutron star equation of state. We perform Bayesian inference and model selection on AT2017gfo using semi-analytical, multi-components models that also account for non-spherical ejecta. Observational data favor anisotropic geometries to spherically symmetric profiles, with a log-Bayes' factor of ${\\sim}10^{4}$, a"},"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":"2101.01201","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2021-01-04T19:05:16Z","cross_cats_sorted":[],"title_canon_sha256":"2ec31b01a36a8e7f46ec518429a22e4cdeff3f6fe07502a2b95648b5fd2c31e6","abstract_canon_sha256":"0e59a5324b0a7ecacc61a2dd624760b777d7cb34b7d63842f94e30178d5a50ab"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:42:46.959904Z","signature_b64":"EdLZYKh0TYPsV/edl1GzHt131VwyauQWYFdsLb2q88OOgSiQjmT/5bmeLByW1XGTXH9jv/dWCtS8L+Z4Y1NcCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"77c5d93994ac8054ece2c184503f3e609301d005622ea131f8e60013044d58f4","last_reissued_at":"2026-07-05T02:42:46.959495Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:42:46.959495Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"AT2017gfo: Bayesian inference and model selection of multi-component kilonovae and constraints on the neutron star equation of state","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Albino Perego, David Radice, Diego Vescovi, Matteo Breschi, Sebastiano Bernuzzi, Vsevolod Nedora, Walter Del Pozzo","submitted_at":"2021-01-04T19:05:16Z","abstract_excerpt":"The joint detection of the gravitational wave GW170817, of the short $\\gamma$-ray burst GRB170817A and of the kilonova AT2017gfo, generated by the the binary neutron star merger observed on August 17, 2017, is a milestone in multimessenger astronomy and provides new constraints on the neutron star equation of state. We perform Bayesian inference and model selection on AT2017gfo using semi-analytical, multi-components models that also account for non-spherical ejecta. Observational data favor anisotropic geometries to spherically symmetric profiles, with a log-Bayes' factor of ${\\sim}10^{4}$, a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.01201","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2101.01201/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2101.01201","created_at":"2026-07-05T02:42:46.959554+00:00"},{"alias_kind":"arxiv_version","alias_value":"2101.01201v3","created_at":"2026-07-05T02:42:46.959554+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.01201","created_at":"2026-07-05T02:42:46.959554+00:00"},{"alias_kind":"pith_short_12","alias_value":"O7C5SOMUVSAF","created_at":"2026-07-05T02:42:46.959554+00:00"},{"alias_kind":"pith_short_16","alias_value":"O7C5SOMUVSAFJ3HC","created_at":"2026-07-05T02:42:46.959554+00:00"},{"alias_kind":"pith_short_8","alias_value":"O7C5SOMU","created_at":"2026-07-05T02:42:46.959554+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2606.11299","citing_title":"A magnetar formation in binary neutron star merger","ref_index":12,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC","json":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC.json","graph_json":"https://pith.science/api/pith-number/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/graph.json","events_json":"https://pith.science/api/pith-number/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/events.json","paper":"https://pith.science/paper/O7C5SOMU"},"agent_actions":{"view_html":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC","download_json":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC.json","view_paper":"https://pith.science/paper/O7C5SOMU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2101.01201&json=true","fetch_graph":"https://pith.science/api/pith-number/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/graph.json","fetch_events":"https://pith.science/api/pith-number/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/action/timestamp_anchor","attest_storage":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/action/storage_attestation","attest_author":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/action/author_attestation","sign_citation":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/action/citation_signature","submit_replication":"https://pith.science/pith/O7C5SOMUVSAFJ3HCYGCFAPZ6MC/action/replication_record"}},"created_at":"2026-07-05T02:42:46.959554+00:00","updated_at":"2026-07-05T02:42:46.959554+00:00"}