{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:ESEBYIBVZYZ42H245GRQ2WY2H5","short_pith_number":"pith:ESEBYIBV","schema_version":"1.0","canonical_sha256":"24881c2035ce33cd1f5ce9a30d5b1a3f4a9a0cdd9d9223424a28c350af6d5b4c","source":{"kind":"arxiv","id":"1705.11008","version":2},"attestation_state":"computed","paper":{"title":"Gravitational lensing by scalar-tensor wormholes and the energy conditions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Rajibul Shaikh, Sayan Kar","submitted_at":"2017-05-31T10:00:15Z","abstract_excerpt":"We study gravitational lensing by a class of zero Ricci scalar wormholes which arise as solutions in a scalar-tensor theory of gravity. An attempt is made to find a possible link between lensing features, stable/unstable photon orbits and the energy conditions on the matter required to support these spacetimes. Our analysis shows (for this class of wormholes) that light rays always exhibit a positive deflection if the energy conditions are satisfied (nonexotic matter content). In contrast, if the energy conditions are violated (exotic matter), the net deflection of a light ray may be positive,"},"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":"1705.11008","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-31T10:00:15Z","cross_cats_sorted":["hep-th"],"title_canon_sha256":"d034abdc7a1bb3b387945434a6b1035f9140e428979d017be5371fe28b61d49b","abstract_canon_sha256":"becdc86969f5cf33a0e945b46b5ebb9384376a008df9e9538e5987724f37dea4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:36:38.418376Z","signature_b64":"Jf6iFqMcqFcg0RcqmHrKieCnO1DSfpSBBmt8Gqw42/fvWpST2qHF5CNMoO1Egps7RKB4jux54+/npF66skdSBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"24881c2035ce33cd1f5ce9a30d5b1a3f4a9a0cdd9d9223424a28c350af6d5b4c","last_reissued_at":"2026-05-18T00:36:38.417674Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:36:38.417674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Gravitational lensing by scalar-tensor wormholes and the energy conditions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-th"],"primary_cat":"gr-qc","authors_text":"Rajibul Shaikh, Sayan Kar","submitted_at":"2017-05-31T10:00:15Z","abstract_excerpt":"We study gravitational lensing by a class of zero Ricci scalar wormholes which arise as solutions in a scalar-tensor theory of gravity. An attempt is made to find a possible link between lensing features, stable/unstable photon orbits and the energy conditions on the matter required to support these spacetimes. Our analysis shows (for this class of wormholes) that light rays always exhibit a positive deflection if the energy conditions are satisfied (nonexotic matter content). In contrast, if the energy conditions are violated (exotic matter), the net deflection of a light ray may be positive,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.11008","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1705.11008","created_at":"2026-05-18T00:36:38.417774+00:00"},{"alias_kind":"arxiv_version","alias_value":"1705.11008v2","created_at":"2026-05-18T00:36:38.417774+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.11008","created_at":"2026-05-18T00:36:38.417774+00:00"},{"alias_kind":"pith_short_12","alias_value":"ESEBYIBVZYZ4","created_at":"2026-05-18T12:31:12.930513+00:00"},{"alias_kind":"pith_short_16","alias_value":"ESEBYIBVZYZ42H24","created_at":"2026-05-18T12:31:12.930513+00:00"},{"alias_kind":"pith_short_8","alias_value":"ESEBYIBV","created_at":"2026-05-18T12:31:12.930513+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2605.16177","citing_title":"Observational signatures of negative mass wormholes through their shadows","ref_index":30,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5","json":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5.json","graph_json":"https://pith.science/api/pith-number/ESEBYIBVZYZ42H245GRQ2WY2H5/graph.json","events_json":"https://pith.science/api/pith-number/ESEBYIBVZYZ42H245GRQ2WY2H5/events.json","paper":"https://pith.science/paper/ESEBYIBV"},"agent_actions":{"view_html":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5","download_json":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5.json","view_paper":"https://pith.science/paper/ESEBYIBV","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1705.11008&json=true","fetch_graph":"https://pith.science/api/pith-number/ESEBYIBVZYZ42H245GRQ2WY2H5/graph.json","fetch_events":"https://pith.science/api/pith-number/ESEBYIBVZYZ42H245GRQ2WY2H5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/action/storage_attestation","attest_author":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/action/author_attestation","sign_citation":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/action/citation_signature","submit_replication":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/action/replication_record"}},"created_at":"2026-05-18T00:36:38.417774+00:00","updated_at":"2026-05-18T00:36:38.417774+00:00"}