{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:KFOJPZUYR4OZAN6YERLLTZ2M36","short_pith_number":"pith:KFOJPZUY","canonical_record":{"source":{"id":"1907.12284","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-29T08:59:56Z","cross_cats_sorted":["astro-ph.HE","astro-ph.SR","hep-ph","nucl-ex"],"title_canon_sha256":"cfd4254fd595cb55dd7175f70784a1a57e115580289108b42554c6b35820c573","abstract_canon_sha256":"db0d0328d6d296316fd5e73a04e41fb55e4ab46ed4bafa30ebc8fe9647d1d2ba"},"schema_version":"1.0"},"canonical_sha256":"515c97e6988f1d9037d82456b9e74cdf8cc7f15b3461488c8f692e7e936774aa","source":{"kind":"arxiv","id":"1907.12284","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.12284","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"arxiv_version","alias_value":"1907.12284v2","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.12284","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"pith_short_12","alias_value":"KFOJPZUYR4OZ","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"pith_short_16","alias_value":"KFOJPZUYR4OZAN6Y","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"pith_short_8","alias_value":"KFOJPZUY","created_at":"2026-07-05T04:25:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:KFOJPZUYR4OZAN6YERLLTZ2M36","target":"record","payload":{"canonical_record":{"source":{"id":"1907.12284","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-29T08:59:56Z","cross_cats_sorted":["astro-ph.HE","astro-ph.SR","hep-ph","nucl-ex"],"title_canon_sha256":"cfd4254fd595cb55dd7175f70784a1a57e115580289108b42554c6b35820c573","abstract_canon_sha256":"db0d0328d6d296316fd5e73a04e41fb55e4ab46ed4bafa30ebc8fe9647d1d2ba"},"schema_version":"1.0"},"canonical_sha256":"515c97e6988f1d9037d82456b9e74cdf8cc7f15b3461488c8f692e7e936774aa","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:25:38.544283Z","signature_b64":"KkWbGTGHGZs+XbP6aWmtRvY46LNyRRrZ+Mb7clVoTlct8HkHOtvCLFSy6NWV0jGMXG21+cRJhU/e9goQcHGhBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"515c97e6988f1d9037d82456b9e74cdf8cc7f15b3461488c8f692e7e936774aa","last_reissued_at":"2026-07-05T04:25:38.543856Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:25:38.543856Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.12284","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":"2026-07-05T04:25:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bgbQndYc9tbqYZA4WPioi7F4fuzq9TWH7iHyNIMQIEuYc/t2OY9+OGKtMn6NmU27wXFMNeJhRlfijostwymRCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T12:59:31.240638Z"},"content_sha256":"1fd53583d5afa46314e51b60e824931ddffe0edf0d1d11d786bd98e0ca16c684","schema_version":"1.0","event_id":"sha256:1fd53583d5afa46314e51b60e824931ddffe0edf0d1d11d786bd98e0ca16c684"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:KFOJPZUYR4OZAN6YERLLTZ2M36","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ruling out the supersoft high-density symmetry energy from the discovery of PSR J0740+6620 with mass $2.14^{+0.10}_{-0.09}M_\\odot$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE","astro-ph.SR","hep-ph","nucl-ex"],"primary_cat":"nucl-th","authors_text":"Lie-Wen Chen, Ying Zhou","submitted_at":"2019-07-29T08:59:56Z","abstract_excerpt":"Using the very recently reported mass $2.14^{+0.10}_{-0.09}M_\\odot$ of PSR J0740+6620 together with the data of finite nuclei and the constraints on the equation of state of symmetric nuclear matter at suprasaturation densities from flow data in heavy-ion collisions, we show that the symmetry energy $E_{\\rm sym}(n)$ cannot be supersoft so that it becomes negative at suprasaturation densities in neutron stars (NSs) and thus may make the NS have a pure neutron matter core. This is in contrast to the fact that using the mass $2.01 \\pm 0.04 M_\\odot$ of PSR J0348+0432 as the NS maximum mass cannot "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.12284","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1907.12284/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":"2026-07-05T04:25:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"F5+huFY5qQ4c96KIX2AZZCdAqxPFhNq82BRV3ddkLeFNCJMr88rw0QWpdlW3PANbKxwqt1qna6xIo0MrfA7IBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-12T12:59:31.241278Z"},"content_sha256":"75223d37e12fbafec8c408a6f86bd09838731eb04b9e05caa02beb03215db862","schema_version":"1.0","event_id":"sha256:75223d37e12fbafec8c408a6f86bd09838731eb04b9e05caa02beb03215db862"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KFOJPZUYR4OZAN6YERLLTZ2M36/bundle.json","state_url":"https://pith.science/pith/KFOJPZUYR4OZAN6YERLLTZ2M36/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KFOJPZUYR4OZAN6YERLLTZ2M36/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":"2026-08-12T12:59:31Z","links":{"resolver":"https://pith.science/pith/KFOJPZUYR4OZAN6YERLLTZ2M36","bundle":"https://pith.science/pith/KFOJPZUYR4OZAN6YERLLTZ2M36/bundle.json","state":"https://pith.science/pith/KFOJPZUYR4OZAN6YERLLTZ2M36/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KFOJPZUYR4OZAN6YERLLTZ2M36/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:KFOJPZUYR4OZAN6YERLLTZ2M36","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":"db0d0328d6d296316fd5e73a04e41fb55e4ab46ed4bafa30ebc8fe9647d1d2ba","cross_cats_sorted":["astro-ph.HE","astro-ph.SR","hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-29T08:59:56Z","title_canon_sha256":"cfd4254fd595cb55dd7175f70784a1a57e115580289108b42554c6b35820c573"},"schema_version":"1.0","source":{"id":"1907.12284","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.12284","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"arxiv_version","alias_value":"1907.12284v2","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.12284","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"pith_short_12","alias_value":"KFOJPZUYR4OZ","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"pith_short_16","alias_value":"KFOJPZUYR4OZAN6Y","created_at":"2026-07-05T04:25:38Z"},{"alias_kind":"pith_short_8","alias_value":"KFOJPZUY","created_at":"2026-07-05T04:25:38Z"}],"graph_snapshots":[{"event_id":"sha256:75223d37e12fbafec8c408a6f86bd09838731eb04b9e05caa02beb03215db862","target":"graph","created_at":"2026-07-05T04:25:38Z","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/1907.12284/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Using the very recently reported mass $2.14^{+0.10}_{-0.09}M_\\odot$ of PSR J0740+6620 together with the data of finite nuclei and the constraints on the equation of state of symmetric nuclear matter at suprasaturation densities from flow data in heavy-ion collisions, we show that the symmetry energy $E_{\\rm sym}(n)$ cannot be supersoft so that it becomes negative at suprasaturation densities in neutron stars (NSs) and thus may make the NS have a pure neutron matter core. This is in contrast to the fact that using the mass $2.01 \\pm 0.04 M_\\odot$ of PSR J0348+0432 as the NS maximum mass cannot ","authors_text":"Lie-Wen Chen, Ying Zhou","cross_cats":["astro-ph.HE","astro-ph.SR","hep-ph","nucl-ex"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-29T08:59:56Z","title":"Ruling out the supersoft high-density symmetry energy from the discovery of PSR J0740+6620 with mass $2.14^{+0.10}_{-0.09}M_\\odot$"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.12284","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":"sha256:1fd53583d5afa46314e51b60e824931ddffe0edf0d1d11d786bd98e0ca16c684","target":"record","created_at":"2026-07-05T04:25:38Z","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":"db0d0328d6d296316fd5e73a04e41fb55e4ab46ed4bafa30ebc8fe9647d1d2ba","cross_cats_sorted":["astro-ph.HE","astro-ph.SR","hep-ph","nucl-ex"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"nucl-th","submitted_at":"2019-07-29T08:59:56Z","title_canon_sha256":"cfd4254fd595cb55dd7175f70784a1a57e115580289108b42554c6b35820c573"},"schema_version":"1.0","source":{"id":"1907.12284","kind":"arxiv","version":2}},"canonical_sha256":"515c97e6988f1d9037d82456b9e74cdf8cc7f15b3461488c8f692e7e936774aa","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"515c97e6988f1d9037d82456b9e74cdf8cc7f15b3461488c8f692e7e936774aa","first_computed_at":"2026-07-05T04:25:38.543856Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:25:38.543856Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KkWbGTGHGZs+XbP6aWmtRvY46LNyRRrZ+Mb7clVoTlct8HkHOtvCLFSy6NWV0jGMXG21+cRJhU/e9goQcHGhBg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:25:38.544283Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.12284","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1fd53583d5afa46314e51b60e824931ddffe0edf0d1d11d786bd98e0ca16c684","sha256:75223d37e12fbafec8c408a6f86bd09838731eb04b9e05caa02beb03215db862"],"state_sha256":"a90c758fcd06a5a37efb4e9f7d9d92ad2cd3f99b1812547d3361053e810941dd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TbKDM59fAMa9S5DXjTlhYXICtn+0LJlSx91/NgM/JCl8KTcCJrz1SHiSDV3OjQvX4aElDyrAGTTWd/c4Nz8ZCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-12T12:59:31.245108Z","bundle_sha256":"dbb8957cdcbda4e3bf945533697b507a1e8ed1431db2aa90a725296d0ac84424"}}