{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:BML54LKTIX6B3D5LCQTKSTT4R2","short_pith_number":"pith:BML54LKT","canonical_record":{"source":{"id":"2503.16888","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-21T06:45:47Z","cross_cats_sorted":[],"title_canon_sha256":"91af70609467d1848a9660353b37e10727c630e07a0e5fe9de2b3c386efd29b0","abstract_canon_sha256":"9e39f5c8f034847b93a91d5bc51e378664eaf50a8aa399cd507ce0ee4d11534d"},"schema_version":"1.0"},"canonical_sha256":"0b17de2d5345fc1d8fab1426a94e7c8e8cc5da294ade1f26d114b56a915d205e","source":{"kind":"arxiv","id":"2503.16888","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.16888","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"2503.16888v1","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.16888","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"BML54LKTIX6B","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"pith_short_16","alias_value":"BML54LKTIX6B3D5L","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"pith_short_8","alias_value":"BML54LKT","created_at":"2026-07-05T10:36:52Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:BML54LKTIX6B3D5LCQTKSTT4R2","target":"record","payload":{"canonical_record":{"source":{"id":"2503.16888","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-21T06:45:47Z","cross_cats_sorted":[],"title_canon_sha256":"91af70609467d1848a9660353b37e10727c630e07a0e5fe9de2b3c386efd29b0","abstract_canon_sha256":"9e39f5c8f034847b93a91d5bc51e378664eaf50a8aa399cd507ce0ee4d11534d"},"schema_version":"1.0"},"canonical_sha256":"0b17de2d5345fc1d8fab1426a94e7c8e8cc5da294ade1f26d114b56a915d205e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:36:52.055115Z","signature_b64":"Ug+TsV6Eyt8h7clYYG0dWrTmT+4L3lMgVhXcBoks7AiV5T0IgY7+agDNRt3tT0ILjkUXY+1Z092GMuCl3c4MAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0b17de2d5345fc1d8fab1426a94e7c8e8cc5da294ade1f26d114b56a915d205e","last_reissued_at":"2026-07-05T10:36:52.054601Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:36:52.054601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.16888","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":"2026-07-05T10:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8wb9blweMAOtPuu35v0i3pcqsgWBUQxesyor1sc5HdW/42JYKe3Dq08sPyxbM1Jnq2qiNSA97At/9ilaTq7lAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T19:25:11.943657Z"},"content_sha256":"5461c82551cfc32ff0c57eed13e7296435903a71cd66b53c034d133cd75aeed3","schema_version":"1.0","event_id":"sha256:5461c82551cfc32ff0c57eed13e7296435903a71cd66b53c034d133cd75aeed3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:BML54LKTIX6B3D5LCQTKSTT4R2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Probing the Internal Structure of Neutron Stars: A Comparative Analysis of Three Different Classes of Equations of State","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Anshuman Verma, Asim Kumar Saha, Ritam Mallick, Tuhin Malik","submitted_at":"2025-03-21T06:45:47Z","abstract_excerpt":"Sound speed can be an important tool in unraveling the nature of matter that exists at the cores of neutron stars. In this study, we investigate three major classes of equations of state; monotonous, non-monotonous and discontinuous depending on the nature of the sound speed in neutron stars. The monotonous EoS refers to hadronic models, the non-monotonous refers to the quarkyonic or smooth crossover models and discontinuous refers to discontinuous first-order phase transition models. We generate a large ensemble of EoS for three classes with the model agnostic speed of sound interpolation app"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.16888","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/2503.16888/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":"2026-07-05T10:36:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eZq7Sc6SZYsKp0GE3u/zIQOQGuagjpkFAqptmwH5+m4AFaEgS4W0FTvwuuMxRvFzD1z5plreHefvMjITtCVRAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T19:25:11.944180Z"},"content_sha256":"f72f301a83eaf677f041ebc7de61a1707f420bf9c951517c067b30c3932ddcf0","schema_version":"1.0","event_id":"sha256:f72f301a83eaf677f041ebc7de61a1707f420bf9c951517c067b30c3932ddcf0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BML54LKTIX6B3D5LCQTKSTT4R2/bundle.json","state_url":"https://pith.science/pith/BML54LKTIX6B3D5LCQTKSTT4R2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BML54LKTIX6B3D5LCQTKSTT4R2/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":"2026-08-04T19:25:11Z","links":{"resolver":"https://pith.science/pith/BML54LKTIX6B3D5LCQTKSTT4R2","bundle":"https://pith.science/pith/BML54LKTIX6B3D5LCQTKSTT4R2/bundle.json","state":"https://pith.science/pith/BML54LKTIX6B3D5LCQTKSTT4R2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BML54LKTIX6B3D5LCQTKSTT4R2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:BML54LKTIX6B3D5LCQTKSTT4R2","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":"9e39f5c8f034847b93a91d5bc51e378664eaf50a8aa399cd507ce0ee4d11534d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-21T06:45:47Z","title_canon_sha256":"91af70609467d1848a9660353b37e10727c630e07a0e5fe9de2b3c386efd29b0"},"schema_version":"1.0","source":{"id":"2503.16888","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.16888","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"arxiv_version","alias_value":"2503.16888v1","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.16888","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"pith_short_12","alias_value":"BML54LKTIX6B","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"pith_short_16","alias_value":"BML54LKTIX6B3D5L","created_at":"2026-07-05T10:36:52Z"},{"alias_kind":"pith_short_8","alias_value":"BML54LKT","created_at":"2026-07-05T10:36:52Z"}],"graph_snapshots":[{"event_id":"sha256:f72f301a83eaf677f041ebc7de61a1707f420bf9c951517c067b30c3932ddcf0","target":"graph","created_at":"2026-07-05T10:36:52Z","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/2503.16888/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Sound speed can be an important tool in unraveling the nature of matter that exists at the cores of neutron stars. In this study, we investigate three major classes of equations of state; monotonous, non-monotonous and discontinuous depending on the nature of the sound speed in neutron stars. The monotonous EoS refers to hadronic models, the non-monotonous refers to the quarkyonic or smooth crossover models and discontinuous refers to discontinuous first-order phase transition models. We generate a large ensemble of EoS for three classes with the model agnostic speed of sound interpolation app","authors_text":"Anshuman Verma, Asim Kumar Saha, Ritam Mallick, Tuhin Malik","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-21T06:45:47Z","title":"Probing the Internal Structure of Neutron Stars: A Comparative Analysis of Three Different Classes of Equations of State"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.16888","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":"sha256:5461c82551cfc32ff0c57eed13e7296435903a71cd66b53c034d133cd75aeed3","target":"record","created_at":"2026-07-05T10:36:52Z","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":"9e39f5c8f034847b93a91d5bc51e378664eaf50a8aa399cd507ce0ee4d11534d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2025-03-21T06:45:47Z","title_canon_sha256":"91af70609467d1848a9660353b37e10727c630e07a0e5fe9de2b3c386efd29b0"},"schema_version":"1.0","source":{"id":"2503.16888","kind":"arxiv","version":1}},"canonical_sha256":"0b17de2d5345fc1d8fab1426a94e7c8e8cc5da294ade1f26d114b56a915d205e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0b17de2d5345fc1d8fab1426a94e7c8e8cc5da294ade1f26d114b56a915d205e","first_computed_at":"2026-07-05T10:36:52.054601Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:36:52.054601Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ug+TsV6Eyt8h7clYYG0dWrTmT+4L3lMgVhXcBoks7AiV5T0IgY7+agDNRt3tT0ILjkUXY+1Z092GMuCl3c4MAw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:36:52.055115Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.16888","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5461c82551cfc32ff0c57eed13e7296435903a71cd66b53c034d133cd75aeed3","sha256:f72f301a83eaf677f041ebc7de61a1707f420bf9c951517c067b30c3932ddcf0"],"state_sha256":"ae6bbc810191a29f965152a897a0bf85fbae5156becfb63306991e7eec24c91e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"B0Pr4bsYHbsMuZ/8FT7KseVAOSoEymdAFVmi+T7LCuiPIC9UYMk7dByxk0Ggi4l6dgVYpElxsVerwYDpHE8KCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T19:25:11.948480Z","bundle_sha256":"ec2beeb55135dcb812c68c8a386f1ee09e4f5202b7e09333ae37d20286676f80"}}