{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:UVMVKFJHA33R4HRBVUJEV666OK","short_pith_number":"pith:UVMVKFJH","canonical_record":{"source":{"id":"2606.21402","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-19T13:12:08Z","cross_cats_sorted":["gr-qc","nucl-ex","nucl-th"],"title_canon_sha256":"a5212775f5fa5bce9a2473c9da5651b8d974075cbe1c1cc06570942bae924b9b","abstract_canon_sha256":"a549b1ebd9a565dd51b84fb11a08e9dd1e4cf0d75b232e80f5da9ef52d3a8017"},"schema_version":"1.0"},"canonical_sha256":"a55955152706f71e1e21ad124afbde72a583e40f1fe51ba2a7ce696cc757e9ee","source":{"kind":"arxiv","id":"2606.21402","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.21402","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"arxiv_version","alias_value":"2606.21402v1","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.21402","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"pith_short_12","alias_value":"UVMVKFJHA33R","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"pith_short_16","alias_value":"UVMVKFJHA33R4HRB","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"pith_short_8","alias_value":"UVMVKFJH","created_at":"2026-06-23T01:13:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:UVMVKFJHA33R4HRBVUJEV666OK","target":"record","payload":{"canonical_record":{"source":{"id":"2606.21402","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-19T13:12:08Z","cross_cats_sorted":["gr-qc","nucl-ex","nucl-th"],"title_canon_sha256":"a5212775f5fa5bce9a2473c9da5651b8d974075cbe1c1cc06570942bae924b9b","abstract_canon_sha256":"a549b1ebd9a565dd51b84fb11a08e9dd1e4cf0d75b232e80f5da9ef52d3a8017"},"schema_version":"1.0"},"canonical_sha256":"a55955152706f71e1e21ad124afbde72a583e40f1fe51ba2a7ce696cc757e9ee","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T01:13:09.151990Z","signature_b64":"sbqazMjrtMT10eFpCYtnfcgfhV4Jtg3qhTczH91Qa4xPxtWl9zbBmPZhJcsJ5M5U2HbjXVYTMlz4FYYdEdsaAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a55955152706f71e1e21ad124afbde72a583e40f1fe51ba2a7ce696cc757e9ee","last_reissued_at":"2026-06-23T01:13:09.151506Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T01:13:09.151506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.21402","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-23T01:13:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XTOVrbECrrarlOeU9WRpPrYPUeBFzuz3kqtjvCutghMzRzlg4KDYbI4zl5I4na2KOEumJBFXuWEaNVDc/ri7BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T09:11:57.149676Z"},"content_sha256":"1c3f81017297f40c9cc3729d56f0abd191392ccefe7682974184f0b9fba4c184","schema_version":"1.0","event_id":"sha256:1c3f81017297f40c9cc3729d56f0abd191392ccefe7682974184f0b9fba4c184"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:UVMVKFJHA33R4HRBVUJEV666OK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A New Scaling of Neutron Star Tidal Deformability for Directly Probing the Core Equation of State","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["gr-qc","nucl-ex","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"Bao-An Li, Bao-Jun Cai, Jian-Hao Shi, Yu-Gang Ma","submitted_at":"2026-06-19T13:12:08Z","abstract_excerpt":"The dimensionless tidal deformability, $\\Lambda$, of neutron stars (NSs), inferred from gravitational-wave (GW) observations, has thus far been used primarily to constrain the pressure of dense matter near twice nuclear saturation density, leaving the core equation of state (EOS) largely inaccessible to inspiral-phase GW observations. We show that the core EOS can be probed directly through $\\Lambda$ using a perturbative analysis of the dimensionless stellar-structure and tidal-response equations formulated in terms of scaled intrinsic variables, without invoking any specific EOS model. We unc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.21402","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2606.21402/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-23T01:13:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6OIXamyp2cURTnOziAKhjNcWtprquaprECosGafYxsSpbXYs5PGmeZ0FeiKdIL+TACgY3IeruUldYgaYAL3gBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T09:11:57.150050Z"},"content_sha256":"9f013b025063628302f94b11c3c6e0f4977809d479b2dc585d86bc693a8ca09c","schema_version":"1.0","event_id":"sha256:9f013b025063628302f94b11c3c6e0f4977809d479b2dc585d86bc693a8ca09c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UVMVKFJHA33R4HRBVUJEV666OK/bundle.json","state_url":"https://pith.science/pith/UVMVKFJHA33R4HRBVUJEV666OK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UVMVKFJHA33R4HRBVUJEV666OK/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-30T09:11:57Z","links":{"resolver":"https://pith.science/pith/UVMVKFJHA33R4HRBVUJEV666OK","bundle":"https://pith.science/pith/UVMVKFJHA33R4HRBVUJEV666OK/bundle.json","state":"https://pith.science/pith/UVMVKFJHA33R4HRBVUJEV666OK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UVMVKFJHA33R4HRBVUJEV666OK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:UVMVKFJHA33R4HRBVUJEV666OK","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"a549b1ebd9a565dd51b84fb11a08e9dd1e4cf0d75b232e80f5da9ef52d3a8017","cross_cats_sorted":["gr-qc","nucl-ex","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-19T13:12:08Z","title_canon_sha256":"a5212775f5fa5bce9a2473c9da5651b8d974075cbe1c1cc06570942bae924b9b"},"schema_version":"1.0","source":{"id":"2606.21402","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.21402","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"arxiv_version","alias_value":"2606.21402v1","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.21402","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"pith_short_12","alias_value":"UVMVKFJHA33R","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"pith_short_16","alias_value":"UVMVKFJHA33R4HRB","created_at":"2026-06-23T01:13:09Z"},{"alias_kind":"pith_short_8","alias_value":"UVMVKFJH","created_at":"2026-06-23T01:13:09Z"}],"graph_snapshots":[{"event_id":"sha256:9f013b025063628302f94b11c3c6e0f4977809d479b2dc585d86bc693a8ca09c","target":"graph","created_at":"2026-06-23T01:13:09Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2606.21402/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The dimensionless tidal deformability, $\\Lambda$, of neutron stars (NSs), inferred from gravitational-wave (GW) observations, has thus far been used primarily to constrain the pressure of dense matter near twice nuclear saturation density, leaving the core equation of state (EOS) largely inaccessible to inspiral-phase GW observations. We show that the core EOS can be probed directly through $\\Lambda$ using a perturbative analysis of the dimensionless stellar-structure and tidal-response equations formulated in terms of scaled intrinsic variables, without invoking any specific EOS model. We unc","authors_text":"Bao-An Li, Bao-Jun Cai, Jian-Hao Shi, Yu-Gang Ma","cross_cats":["gr-qc","nucl-ex","nucl-th"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-19T13:12:08Z","title":"A New Scaling of Neutron Star Tidal Deformability for Directly Probing the Core Equation of State"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.21402","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:1c3f81017297f40c9cc3729d56f0abd191392ccefe7682974184f0b9fba4c184","target":"record","created_at":"2026-06-23T01:13:09Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"a549b1ebd9a565dd51b84fb11a08e9dd1e4cf0d75b232e80f5da9ef52d3a8017","cross_cats_sorted":["gr-qc","nucl-ex","nucl-th"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2026-06-19T13:12:08Z","title_canon_sha256":"a5212775f5fa5bce9a2473c9da5651b8d974075cbe1c1cc06570942bae924b9b"},"schema_version":"1.0","source":{"id":"2606.21402","kind":"arxiv","version":1}},"canonical_sha256":"a55955152706f71e1e21ad124afbde72a583e40f1fe51ba2a7ce696cc757e9ee","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a55955152706f71e1e21ad124afbde72a583e40f1fe51ba2a7ce696cc757e9ee","first_computed_at":"2026-06-23T01:13:09.151506Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T01:13:09.151506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"sbqazMjrtMT10eFpCYtnfcgfhV4Jtg3qhTczH91Qa4xPxtWl9zbBmPZhJcsJ5M5U2HbjXVYTMlz4FYYdEdsaAQ==","signature_status":"signed_v1","signed_at":"2026-06-23T01:13:09.151990Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.21402","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c3f81017297f40c9cc3729d56f0abd191392ccefe7682974184f0b9fba4c184","sha256:9f013b025063628302f94b11c3c6e0f4977809d479b2dc585d86bc693a8ca09c"],"state_sha256":"150be0ed638b509d44a6ecbf7b7b0f50df29c403d7490cbdfaf6e3d1cbf4c43b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gmzXCyKF8CLlHsc3B6mgm7CPH73rZc8oGf6hm6y3RCuamvux2ZodNAJwmGF5gTrbf1I8KX2+Bz6i8hHLYrDjAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T09:11:57.152074Z","bundle_sha256":"c4b8b79d6d5a9e31dc70e0f5a039f38e08b6fcb6334e552eb380ae6d031d9a57"}}