{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2025:GRT4Z33LQIZEEYOBBQIMWEXSWL","short_pith_number":"pith:GRT4Z33L","schema_version":"1.0","canonical_sha256":"3467ccef6b82324261c10c10cb12f2b2ececa5a2d2645cc4a531d0b8d1ba8daf","source":{"kind":"arxiv","id":"2503.19955","version":2},"attestation_state":"computed","paper":{"title":"How Much NEC Breaking Can the Universe Endure?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph","hep-th"],"primary_cat":"gr-qc","authors_text":"Brayden R. Hull, Elly Moghtaderi, Ghazal Geshnizjani, Jerome Quintin","submitted_at":"2025-03-25T18:00:00Z","abstract_excerpt":"Quantum fields can notoriously violate the null energy condition (NEC). In a cosmological context, NEC violation can lead to, e.g., dark energy at late times with an equation-of-state parameter smaller than $-1$ and nonsingular bounces at early times. However, it is expected that there should still be a limit in semiclasssical gravity to how much `negative energy' can accumulate over time and in space as a result of quantum effects. In the course of formulating quantum-motivated energy conditions, the smeared null energy condition has emerged as a recent proposal. This condition conjectures th"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2503.19955","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2025-03-25T18:00:00Z","cross_cats_sorted":["astro-ph.CO","hep-ph","hep-th"],"title_canon_sha256":"b8e82c23c25a621d17482b6978b29fbf9fedb32a26e6f690dc0f137883b3dcd6","abstract_canon_sha256":"faf32e61a29a1de0c94ff6cd2c6d62b5c4fcfcbcabc899c90c6a7588444861df"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:28:35.308390Z","signature_b64":"GAot9D9ID248HTgKmZffjZUHEBgdjUUY3qWhY0TDAnBvaPzJtPCOWBOwnbmGGP0RgeA3riWkedoL7/jRdLdFBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3467ccef6b82324261c10c10cb12f2b2ececa5a2d2645cc4a531d0b8d1ba8daf","last_reissued_at":"2026-07-05T11:28:35.307886Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:28:35.307886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"How Much NEC Breaking Can the Universe Endure?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph","hep-th"],"primary_cat":"gr-qc","authors_text":"Brayden R. Hull, Elly Moghtaderi, Ghazal Geshnizjani, Jerome Quintin","submitted_at":"2025-03-25T18:00:00Z","abstract_excerpt":"Quantum fields can notoriously violate the null energy condition (NEC). In a cosmological context, NEC violation can lead to, e.g., dark energy at late times with an equation-of-state parameter smaller than $-1$ and nonsingular bounces at early times. However, it is expected that there should still be a limit in semiclasssical gravity to how much `negative energy' can accumulate over time and in space as a result of quantum effects. In the course of formulating quantum-motivated energy conditions, the smeared null energy condition has emerged as a recent proposal. This condition conjectures th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.19955","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/2503.19955/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2503.19955","created_at":"2026-07-05T11:28:35.307944+00:00"},{"alias_kind":"arxiv_version","alias_value":"2503.19955v2","created_at":"2026-07-05T11:28:35.307944+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.19955","created_at":"2026-07-05T11:28:35.307944+00:00"},{"alias_kind":"pith_short_12","alias_value":"GRT4Z33LQIZE","created_at":"2026-07-05T11:28:35.307944+00:00"},{"alias_kind":"pith_short_16","alias_value":"GRT4Z33LQIZEEYOB","created_at":"2026-07-05T11:28:35.307944+00:00"},{"alias_kind":"pith_short_8","alias_value":"GRT4Z33L","created_at":"2026-07-05T11:28:35.307944+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":5,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2607.06774","citing_title":"Natural Phantom Dark Energy from a $\\mathbb{Z}_N$--Axion","ref_index":16,"is_internal_anchor":true},{"citing_arxiv_id":"2606.08003","citing_title":"Does Eternal Inflation Violate the Smeared Null Energy Condition?","ref_index":9,"is_internal_anchor":false},{"citing_arxiv_id":"2605.18965","citing_title":"Affine ANEC selects the closed FRW branch for geodesically complete cosmology","ref_index":54,"is_internal_anchor":false},{"citing_arxiv_id":"2505.24732","citing_title":"The Quintom theory of dark energy after DESI DR2","ref_index":60,"is_internal_anchor":false},{"citing_arxiv_id":"2604.03756","citing_title":"Is the $w_0w_a$CDM cosmological parameterization evidence for dark energy dynamics partially caused by the excess smoothing of Planck PR4 CMB anisotropy data?","ref_index":38,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL","json":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL.json","graph_json":"https://pith.science/api/pith-number/GRT4Z33LQIZEEYOBBQIMWEXSWL/graph.json","events_json":"https://pith.science/api/pith-number/GRT4Z33LQIZEEYOBBQIMWEXSWL/events.json","paper":"https://pith.science/paper/GRT4Z33L"},"agent_actions":{"view_html":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL","download_json":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL.json","view_paper":"https://pith.science/paper/GRT4Z33L","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2503.19955&json=true","fetch_graph":"https://pith.science/api/pith-number/GRT4Z33LQIZEEYOBBQIMWEXSWL/graph.json","fetch_events":"https://pith.science/api/pith-number/GRT4Z33LQIZEEYOBBQIMWEXSWL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL/action/storage_attestation","attest_author":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL/action/author_attestation","sign_citation":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL/action/citation_signature","submit_replication":"https://pith.science/pith/GRT4Z33LQIZEEYOBBQIMWEXSWL/action/replication_record"}},"created_at":"2026-07-05T11:28:35.307944+00:00","updated_at":"2026-07-05T11:28:35.307944+00:00"}