{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:4VOJVLPRU2A2ESUUQURK2OCZGY","short_pith_number":"pith:4VOJVLPR","schema_version":"1.0","canonical_sha256":"e55c9aadf1a681a24a948522ad38593634c5bb402c25cff05ba63521cd8322c1","source":{"kind":"arxiv","id":"1404.6070","version":1},"attestation_state":"computed","paper":{"title":"Dense hadronic matter in neutron stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"nucl-th","authors_text":"Alessandro Drago, Andrea Lavagno, Daniele Pigato, Giuseppe Pagliara","submitted_at":"2014-04-24T09:56:46Z","abstract_excerpt":"The existence of stars with masses up to $2 M_{\\odot}$ and the hints of the existence of stars with radii smaller than $\\sim 11$ km seem to require, at the same time, a stiff and a soft hadronic equation of state at large densities. We argue that these two apparently contradicting constraints are actually an indication of the existence of two families of compact stars: hadronic stars which could be very compact and quark stars which could be very massive. In this respect, a crucial role is played, in the hadronic equation of state, by the delta isobars whose early appearance shifts to large de"},"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":"1404.6070","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2014-04-24T09:56:46Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"c1bd9c28fad2d9c7e5973307df7ec9ebc429b23b10688d46cc73d532d9a9756a","abstract_canon_sha256":"1031ec8be50fb22baae2757128b67f12bc0a0259e9c541779037f5b5cc066897"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:53:18.452585Z","signature_b64":"9FW7YBAI8dYmaEIp0TF+XzzApUNRfXX/TmmOegVXPcz/EfQjphWRMISQ5m6DwafnMNqbi5Z0fZIT7bdyCJ0zCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e55c9aadf1a681a24a948522ad38593634c5bb402c25cff05ba63521cd8322c1","last_reissued_at":"2026-05-18T02:53:18.452036Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:53:18.452036Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Dense hadronic matter in neutron stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"nucl-th","authors_text":"Alessandro Drago, Andrea Lavagno, Daniele Pigato, Giuseppe Pagliara","submitted_at":"2014-04-24T09:56:46Z","abstract_excerpt":"The existence of stars with masses up to $2 M_{\\odot}$ and the hints of the existence of stars with radii smaller than $\\sim 11$ km seem to require, at the same time, a stiff and a soft hadronic equation of state at large densities. We argue that these two apparently contradicting constraints are actually an indication of the existence of two families of compact stars: hadronic stars which could be very compact and quark stars which could be very massive. In this respect, a crucial role is played, in the hadronic equation of state, by the delta isobars whose early appearance shifts to large de"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1404.6070","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":"1404.6070","created_at":"2026-05-18T02:53:18.452127+00:00"},{"alias_kind":"arxiv_version","alias_value":"1404.6070v1","created_at":"2026-05-18T02:53:18.452127+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1404.6070","created_at":"2026-05-18T02:53:18.452127+00:00"},{"alias_kind":"pith_short_12","alias_value":"4VOJVLPRU2A2","created_at":"2026-05-18T12:28:14.216126+00:00"},{"alias_kind":"pith_short_16","alias_value":"4VOJVLPRU2A2ESUU","created_at":"2026-05-18T12:28:14.216126+00:00"},{"alias_kind":"pith_short_8","alias_value":"4VOJVLPR","created_at":"2026-05-18T12:28:14.216126+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/4VOJVLPRU2A2ESUUQURK2OCZGY","json":"https://pith.science/pith/4VOJVLPRU2A2ESUUQURK2OCZGY.json","graph_json":"https://pith.science/api/pith-number/4VOJVLPRU2A2ESUUQURK2OCZGY/graph.json","events_json":"https://pith.science/api/pith-number/4VOJVLPRU2A2ESUUQURK2OCZGY/events.json","paper":"https://pith.science/paper/4VOJVLPR"},"agent_actions":{"view_html":"https://pith.science/pith/4VOJVLPRU2A2ESUUQURK2OCZGY","download_json":"https://pith.science/pith/4VOJVLPRU2A2ESUUQURK2OCZGY.json","view_paper":"https://pith.science/paper/4VOJVLPR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1404.6070&json=true","fetch_graph":"https://pith.science/api/pith-number/4VOJVLPRU2A2ESUUQURK2OCZGY/graph.json","fetch_events":"https://pith.science/api/pith-number/4VOJVLPRU2A2ESUUQURK2OCZGY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4VOJVLPRU2A2ESUUQURK2OCZGY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4VOJVLPRU2A2ESUUQURK2OCZGY/action/storage_attestation","attest_author":"https://pith.science/pith/4VOJVLPRU2A2ESUUQURK2OCZGY/action/author_attestation","sign_citation":"https://pith.science/pith/4VOJVLPRU2A2ESUUQURK2OCZGY/action/citation_signature","submit_replication":"https://pith.science/pith/4VOJVLPRU2A2ESUUQURK2OCZGY/action/replication_record"}},"created_at":"2026-05-18T02:53:18.452127+00:00","updated_at":"2026-05-18T02:53:18.452127+00:00"}