{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:JEMETTPDTKUZS7EYZPAIVE5JBR","short_pith_number":"pith:JEMETTPD","canonical_record":{"source":{"id":"1001.3294","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-19T13:18:09Z","cross_cats_sorted":["hep-ph","nucl-th"],"title_canon_sha256":"9cd1cff993b00833a4fe9c1ef35428f08e4db8794f03e601e6a0392229167a48","abstract_canon_sha256":"18fcbdca5cc7dcbabe50e55754945e2b8725843b9866bb7e579e8adcb1aa2587"},"schema_version":"1.0"},"canonical_sha256":"491849cde39aa9997c98cbc08a93a90c5de5d7447667b65f0a60697ab861a28d","source":{"kind":"arxiv","id":"1001.3294","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.3294","created_at":"2026-05-18T02:33:49Z"},{"alias_kind":"arxiv_version","alias_value":"1001.3294v2","created_at":"2026-05-18T02:33:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.3294","created_at":"2026-05-18T02:33:49Z"},{"alias_kind":"pith_short_12","alias_value":"JEMETTPDTKUZ","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"JEMETTPDTKUZS7EY","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"JEMETTPD","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:JEMETTPDTKUZS7EYZPAIVE5JBR","target":"record","payload":{"canonical_record":{"source":{"id":"1001.3294","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-19T13:18:09Z","cross_cats_sorted":["hep-ph","nucl-th"],"title_canon_sha256":"9cd1cff993b00833a4fe9c1ef35428f08e4db8794f03e601e6a0392229167a48","abstract_canon_sha256":"18fcbdca5cc7dcbabe50e55754945e2b8725843b9866bb7e579e8adcb1aa2587"},"schema_version":"1.0"},"canonical_sha256":"491849cde39aa9997c98cbc08a93a90c5de5d7447667b65f0a60697ab861a28d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:33:49.486032Z","signature_b64":"c7yTV9aKbn0Lh9fA2WQHa3Z7NLnSjVxzURtc4YE7bEBMieDMn0ET/AAjBlTTI9AXBGQFId3Y9eS/B0covuQsAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"491849cde39aa9997c98cbc08a93a90c5de5d7447667b65f0a60697ab861a28d","last_reissued_at":"2026-05-18T02:33:49.485478Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:33:49.485478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1001.3294","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:33:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qG0Q1/VYU3Hykbot3Q9JWePLjMNsDxycsdjtv+mWRU+jobTaNQtYT6DQPRhDUxeVbzA1RjCa5Gtj8v+YVd0GDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:45:06.129163Z"},"content_sha256":"bb8f9e1725f278572bb6fb47cde31b68ab0016aea05937be63bed382145ff723","schema_version":"1.0","event_id":"sha256:bb8f9e1725f278572bb6fb47cde31b68ab0016aea05937be63bed382145ff723"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:JEMETTPDTKUZS7EYZPAIVE5JBR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Dense matter in compact stars - A pedagogical introduction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-th"],"primary_cat":"astro-ph.SR","authors_text":"Andreas Schmitt","submitted_at":"2010-01-19T13:18:09Z","abstract_excerpt":"Cold and dense nuclear and/or quark matter can be found in the interior of compact stars. It is very challenging to determine the ground state and properties of this matter because of the strong-coupling nature of QCD. I give a pedagogical introduction to microscopic calculations based on phenomenological models, effective theories, and perturbative QCD. I discuss how the results of these calculations can be related to astrophysical observations to potentially rule out or confirm candidate phases of dense matter."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.3294","kind":"arxiv","version":2},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:33:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t6Qi84KN8iICet57cpuu8UnDRkKMjvwPfjIryuH1q5myx2M0JURKXliIfVU9+FMJBHbErroWUIC0AP99dNK+BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T18:45:06.129709Z"},"content_sha256":"07d43511ace7ef30591da36c119fc235f8acb6c8c6309ca06e3326fd9e8de104","schema_version":"1.0","event_id":"sha256:07d43511ace7ef30591da36c119fc235f8acb6c8c6309ca06e3326fd9e8de104"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JEMETTPDTKUZS7EYZPAIVE5JBR/bundle.json","state_url":"https://pith.science/pith/JEMETTPDTKUZS7EYZPAIVE5JBR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JEMETTPDTKUZS7EYZPAIVE5JBR/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":"2026-05-25T18:45:06Z","links":{"resolver":"https://pith.science/pith/JEMETTPDTKUZS7EYZPAIVE5JBR","bundle":"https://pith.science/pith/JEMETTPDTKUZS7EYZPAIVE5JBR/bundle.json","state":"https://pith.science/pith/JEMETTPDTKUZS7EYZPAIVE5JBR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JEMETTPDTKUZS7EYZPAIVE5JBR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:JEMETTPDTKUZS7EYZPAIVE5JBR","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":"18fcbdca5cc7dcbabe50e55754945e2b8725843b9866bb7e579e8adcb1aa2587","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-19T13:18:09Z","title_canon_sha256":"9cd1cff993b00833a4fe9c1ef35428f08e4db8794f03e601e6a0392229167a48"},"schema_version":"1.0","source":{"id":"1001.3294","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.3294","created_at":"2026-05-18T02:33:49Z"},{"alias_kind":"arxiv_version","alias_value":"1001.3294v2","created_at":"2026-05-18T02:33:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.3294","created_at":"2026-05-18T02:33:49Z"},{"alias_kind":"pith_short_12","alias_value":"JEMETTPDTKUZ","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"JEMETTPDTKUZS7EY","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"JEMETTPD","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:07d43511ace7ef30591da36c119fc235f8acb6c8c6309ca06e3326fd9e8de104","target":"graph","created_at":"2026-05-18T02:33:49Z","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"},"paper":{"abstract_excerpt":"Cold and dense nuclear and/or quark matter can be found in the interior of compact stars. It is very challenging to determine the ground state and properties of this matter because of the strong-coupling nature of QCD. I give a pedagogical introduction to microscopic calculations based on phenomenological models, effective theories, and perturbative QCD. I discuss how the results of these calculations can be related to astrophysical observations to potentially rule out or confirm candidate phases of dense matter.","authors_text":"Andreas Schmitt","cross_cats":["hep-ph","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-19T13:18:09Z","title":"Dense matter in compact stars - A pedagogical introduction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.3294","kind":"arxiv","version":2},"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:bb8f9e1725f278572bb6fb47cde31b68ab0016aea05937be63bed382145ff723","target":"record","created_at":"2026-05-18T02:33:49Z","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":"18fcbdca5cc7dcbabe50e55754945e2b8725843b9866bb7e579e8adcb1aa2587","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-19T13:18:09Z","title_canon_sha256":"9cd1cff993b00833a4fe9c1ef35428f08e4db8794f03e601e6a0392229167a48"},"schema_version":"1.0","source":{"id":"1001.3294","kind":"arxiv","version":2}},"canonical_sha256":"491849cde39aa9997c98cbc08a93a90c5de5d7447667b65f0a60697ab861a28d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"491849cde39aa9997c98cbc08a93a90c5de5d7447667b65f0a60697ab861a28d","first_computed_at":"2026-05-18T02:33:49.485478Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:33:49.485478Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"c7yTV9aKbn0Lh9fA2WQHa3Z7NLnSjVxzURtc4YE7bEBMieDMn0ET/AAjBlTTI9AXBGQFId3Y9eS/B0covuQsAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:33:49.486032Z","signed_message":"canonical_sha256_bytes"},"source_id":"1001.3294","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bb8f9e1725f278572bb6fb47cde31b68ab0016aea05937be63bed382145ff723","sha256:07d43511ace7ef30591da36c119fc235f8acb6c8c6309ca06e3326fd9e8de104"],"state_sha256":"ebf82020a11646a22b03e8c12df9f952a281257342a185a0938e20dd766962c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"94IwfL8iQ0uHjBnpiOmYEhVSlEohrb9mDZiFG1ZltWLc9ZayUBZY63kRhLTO38+ZSF84ABcM6vzlqoKHnsCTAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T18:45:06.132553Z","bundle_sha256":"aaa0eeece79c2c97d04e5e43843f225875b739d3e1c39ec617ce46db4c974f1b"}}