{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:SRJCUYYMPCJDIRJOLDK3WCE542","short_pith_number":"pith:SRJCUYYM","schema_version":"1.0","canonical_sha256":"94522a630c789234452e58d5bb089de6bd5addc75fac47a85b29b1046b531b1b","source":{"kind":"arxiv","id":"2007.01847","version":2},"attestation_state":"computed","paper":{"title":"Causality in Curved Spacetimes: The Speed of Light & Gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Andrew J. Tolley, Claudia de Rham","submitted_at":"2020-07-03T17:55:18Z","abstract_excerpt":"Within the low-energy effective field theories of QED and gravity, the low-energy speed of light or that of gravitational waves can typically be mildly superluminal in curved spacetimes. Related to this, small scattering time advances relative to the curved background can emerge from known effective field theory coefficients for photons or gravitons. We clarify why these results are not in contradiction with causality, analyticity or Lorentz invariance, and highlight various subtleties that arise when dealing with superluminalities and time advances in the gravitational context. Consistent low"},"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":"2007.01847","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2020-07-03T17:55:18Z","cross_cats_sorted":[],"title_canon_sha256":"a3063e4d4a3e333751d4229b459f17329db9d5bceccfe600fd48a1799cf53516","abstract_canon_sha256":"ad28548d4bb995c98ec59516d23cbd6fb0f4979cb7bce1bd633d22f978eb2325"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:46:58.515974Z","signature_b64":"0tKRTW8WQ89ERkbjRddubfvjB6Z4nMjm3AFOLCXkOuqrZlk/0aGBWvUmpEm0oAZgChoFaz66grANwSJbJWW1Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"94522a630c789234452e58d5bb089de6bd5addc75fac47a85b29b1046b531b1b","last_reissued_at":"2026-07-05T01:46:58.515552Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:46:58.515552Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Causality in Curved Spacetimes: The Speed of Light & Gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Andrew J. Tolley, Claudia de Rham","submitted_at":"2020-07-03T17:55:18Z","abstract_excerpt":"Within the low-energy effective field theories of QED and gravity, the low-energy speed of light or that of gravitational waves can typically be mildly superluminal in curved spacetimes. Related to this, small scattering time advances relative to the curved background can emerge from known effective field theory coefficients for photons or gravitons. We clarify why these results are not in contradiction with causality, analyticity or Lorentz invariance, and highlight various subtleties that arise when dealing with superluminalities and time advances in the gravitational context. Consistent low"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.01847","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/2007.01847/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":"2007.01847","created_at":"2026-07-05T01:46:58.515610+00:00"},{"alias_kind":"arxiv_version","alias_value":"2007.01847v2","created_at":"2026-07-05T01:46:58.515610+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2007.01847","created_at":"2026-07-05T01:46:58.515610+00:00"},{"alias_kind":"pith_short_12","alias_value":"SRJCUYYMPCJD","created_at":"2026-07-05T01:46:58.515610+00:00"},{"alias_kind":"pith_short_16","alias_value":"SRJCUYYMPCJDIRJO","created_at":"2026-07-05T01:46:58.515610+00:00"},{"alias_kind":"pith_short_8","alias_value":"SRJCUYYM","created_at":"2026-07-05T01:46:58.515610+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":0,"sample":[{"citing_arxiv_id":"2511.00152","citing_title":"Every Wrinkle Carries A Memory: An Integro-differential Bootstrap for Features in Cosmological Correlators","ref_index":94,"is_internal_anchor":false},{"citing_arxiv_id":"2605.12291","citing_title":"Necessary conditions for causality from linearized stability at ultra-high boosts","ref_index":57,"is_internal_anchor":false},{"citing_arxiv_id":"2605.00089","citing_title":"On the Asymptotic Causal Structure in Gravitational EFTs","ref_index":13,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542","json":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542.json","graph_json":"https://pith.science/api/pith-number/SRJCUYYMPCJDIRJOLDK3WCE542/graph.json","events_json":"https://pith.science/api/pith-number/SRJCUYYMPCJDIRJOLDK3WCE542/events.json","paper":"https://pith.science/paper/SRJCUYYM"},"agent_actions":{"view_html":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542","download_json":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542.json","view_paper":"https://pith.science/paper/SRJCUYYM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2007.01847&json=true","fetch_graph":"https://pith.science/api/pith-number/SRJCUYYMPCJDIRJOLDK3WCE542/graph.json","fetch_events":"https://pith.science/api/pith-number/SRJCUYYMPCJDIRJOLDK3WCE542/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542/action/timestamp_anchor","attest_storage":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542/action/storage_attestation","attest_author":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542/action/author_attestation","sign_citation":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542/action/citation_signature","submit_replication":"https://pith.science/pith/SRJCUYYMPCJDIRJOLDK3WCE542/action/replication_record"}},"created_at":"2026-07-05T01:46:58.515610+00:00","updated_at":"2026-07-05T01:46:58.515610+00:00"}