{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:QNF5O6H7FM6ADB7YSB7YIPTEAK","short_pith_number":"pith:QNF5O6H7","canonical_record":{"source":{"id":"1802.04813","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-13T19:00:09Z","cross_cats_sorted":["hep-ph","nucl-th"],"title_canon_sha256":"5046ad5a8b47e6f2ed4365c0da0cf8b1bf07d1951748ede21a85fcf287114245","abstract_canon_sha256":"648e11e498532367e0eca5eb5fe8b1f23dcc51f66b90751c729b0bdc21fbad70"},"schema_version":"1.0"},"canonical_sha256":"834bd778ff2b3c0187f8907f843e6402932d780e2b926fb550775f3b78bb3bc1","source":{"kind":"arxiv","id":"1802.04813","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04813","created_at":"2026-05-18T00:03:17Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04813v1","created_at":"2026-05-18T00:03:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04813","created_at":"2026-05-18T00:03:17Z"},{"alias_kind":"pith_short_12","alias_value":"QNF5O6H7FM6A","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QNF5O6H7FM6ADB7Y","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QNF5O6H7","created_at":"2026-05-18T12:32:46Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:QNF5O6H7FM6ADB7YSB7YIPTEAK","target":"record","payload":{"canonical_record":{"source":{"id":"1802.04813","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-13T19:00:09Z","cross_cats_sorted":["hep-ph","nucl-th"],"title_canon_sha256":"5046ad5a8b47e6f2ed4365c0da0cf8b1bf07d1951748ede21a85fcf287114245","abstract_canon_sha256":"648e11e498532367e0eca5eb5fe8b1f23dcc51f66b90751c729b0bdc21fbad70"},"schema_version":"1.0"},"canonical_sha256":"834bd778ff2b3c0187f8907f843e6402932d780e2b926fb550775f3b78bb3bc1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:17.180461Z","signature_b64":"2DJZit6fQNlfEvfLMv652o3YQWdIK3Sj9oOCF7VowXG7OwF0ztjRL5dRa2BGcChu70O1l77B+tHW2jag2qBsCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"834bd778ff2b3c0187f8907f843e6402932d780e2b926fb550775f3b78bb3bc1","last_reissued_at":"2026-05-18T00:03:17.179980Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:17.179980Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.04813","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":"2026-05-18T00:03:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qRRT5WnGcmHXZQWQlCt9iolsbedZ6asyVJKMR8iVKnGAsoNk3KC+dUKn5inuEQyrfSr2ra3FeX43HhDt6+/rCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T03:08:16.094393Z"},"content_sha256":"8d2dd95b1dfe3523718b3b5d5fefe58a285108f1d95714a08a37b42a48cabd58","schema_version":"1.0","event_id":"sha256:8d2dd95b1dfe3523718b3b5d5fefe58a285108f1d95714a08a37b42a48cabd58"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:QNF5O6H7FM6ADB7YSB7YIPTEAK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neutron Star Mergers Chirp About Vacuum Energy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","nucl-th"],"primary_cat":"astro-ph.HE","authors_text":"Cem Er\\\"oncel, Csaba Cs\\'aki, Gabriele Rigo, Jay Hubisz, John Terning","submitted_at":"2018-02-13T19:00:09Z","abstract_excerpt":"Observations of gravitational waves from neutron star mergers open up novel directions for exploring fundamental physics: they offer the first access to the structure of objects with a non-negligible contribution from vacuum energy to their total mass. The presence of such vacuum energy in the inner cores of neutron stars occurs in new QCD phases at large densities, with the vacuum energy appearing in the equation of state for a new phase. This in turn leads to a change in the internal structure of neutron stars and influences their tidal deformabilities which are measurable in the chirp signa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04813","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:03:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p1kKfCR7MFaoPelVWMhUYWLTrrKp279YSUyVAd6Pby3s+35uLw9mYD3l3a1kAr0r7K5PZAMktUlm8nVA8k6/BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-28T03:08:16.094740Z"},"content_sha256":"97e4d2fbd8433d55a111a85c994a30bf955cc6ab824f33040a6e5a79213a4f20","schema_version":"1.0","event_id":"sha256:97e4d2fbd8433d55a111a85c994a30bf955cc6ab824f33040a6e5a79213a4f20"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QNF5O6H7FM6ADB7YSB7YIPTEAK/bundle.json","state_url":"https://pith.science/pith/QNF5O6H7FM6ADB7YSB7YIPTEAK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QNF5O6H7FM6ADB7YSB7YIPTEAK/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":"2026-06-28T03:08:16Z","links":{"resolver":"https://pith.science/pith/QNF5O6H7FM6ADB7YSB7YIPTEAK","bundle":"https://pith.science/pith/QNF5O6H7FM6ADB7YSB7YIPTEAK/bundle.json","state":"https://pith.science/pith/QNF5O6H7FM6ADB7YSB7YIPTEAK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QNF5O6H7FM6ADB7YSB7YIPTEAK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:QNF5O6H7FM6ADB7YSB7YIPTEAK","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":"648e11e498532367e0eca5eb5fe8b1f23dcc51f66b90751c729b0bdc21fbad70","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-13T19:00:09Z","title_canon_sha256":"5046ad5a8b47e6f2ed4365c0da0cf8b1bf07d1951748ede21a85fcf287114245"},"schema_version":"1.0","source":{"id":"1802.04813","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.04813","created_at":"2026-05-18T00:03:17Z"},{"alias_kind":"arxiv_version","alias_value":"1802.04813v1","created_at":"2026-05-18T00:03:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.04813","created_at":"2026-05-18T00:03:17Z"},{"alias_kind":"pith_short_12","alias_value":"QNF5O6H7FM6A","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_16","alias_value":"QNF5O6H7FM6ADB7Y","created_at":"2026-05-18T12:32:46Z"},{"alias_kind":"pith_short_8","alias_value":"QNF5O6H7","created_at":"2026-05-18T12:32:46Z"}],"graph_snapshots":[{"event_id":"sha256:97e4d2fbd8433d55a111a85c994a30bf955cc6ab824f33040a6e5a79213a4f20","target":"graph","created_at":"2026-05-18T00:03:17Z","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":"Observations of gravitational waves from neutron star mergers open up novel directions for exploring fundamental physics: they offer the first access to the structure of objects with a non-negligible contribution from vacuum energy to their total mass. The presence of such vacuum energy in the inner cores of neutron stars occurs in new QCD phases at large densities, with the vacuum energy appearing in the equation of state for a new phase. This in turn leads to a change in the internal structure of neutron stars and influences their tidal deformabilities which are measurable in the chirp signa","authors_text":"Cem Er\\\"oncel, Csaba Cs\\'aki, Gabriele Rigo, Jay Hubisz, John Terning","cross_cats":["hep-ph","nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-13T19:00:09Z","title":"Neutron Star Mergers Chirp About Vacuum Energy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.04813","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":"sha256:8d2dd95b1dfe3523718b3b5d5fefe58a285108f1d95714a08a37b42a48cabd58","target":"record","created_at":"2026-05-18T00:03:17Z","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":"648e11e498532367e0eca5eb5fe8b1f23dcc51f66b90751c729b0bdc21fbad70","cross_cats_sorted":["hep-ph","nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-02-13T19:00:09Z","title_canon_sha256":"5046ad5a8b47e6f2ed4365c0da0cf8b1bf07d1951748ede21a85fcf287114245"},"schema_version":"1.0","source":{"id":"1802.04813","kind":"arxiv","version":1}},"canonical_sha256":"834bd778ff2b3c0187f8907f843e6402932d780e2b926fb550775f3b78bb3bc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"834bd778ff2b3c0187f8907f843e6402932d780e2b926fb550775f3b78bb3bc1","first_computed_at":"2026-05-18T00:03:17.179980Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:17.179980Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2DJZit6fQNlfEvfLMv652o3YQWdIK3Sj9oOCF7VowXG7OwF0ztjRL5dRa2BGcChu70O1l77B+tHW2jag2qBsCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:17.180461Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.04813","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d2dd95b1dfe3523718b3b5d5fefe58a285108f1d95714a08a37b42a48cabd58","sha256:97e4d2fbd8433d55a111a85c994a30bf955cc6ab824f33040a6e5a79213a4f20"],"state_sha256":"5b597fb0f78e3d9b1b527b2d63b1ea79af785c50cf9c0b85ff1a832c7c792a2e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U/xtjjYuBju7jZq4QJhgXx3XQIcln0nNGKrkSn9FgK83Ju89vFm2v4v62XxfSkbGgz44khhsTpvSNSaLh39GAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-28T03:08:16.096634Z","bundle_sha256":"b4a6308802b83c842d85af02c5861cbbb893451113d0f2d8f7f2cdee97c67bc2"}}