{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:ESEBYIBVZYZ42H245GRQ2WY2H5","short_pith_number":"pith:ESEBYIBV","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"},"canonical_sha256":"24881c2035ce33cd1f5ce9a30d5b1a3f4a9a0cdd9d9223424a28c350af6d5b4c","source":{"kind":"arxiv","id":"1705.11008","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.11008","created_at":"2026-05-18T00:36:38Z"},{"alias_kind":"arxiv_version","alias_value":"1705.11008v2","created_at":"2026-05-18T00:36:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.11008","created_at":"2026-05-18T00:36:38Z"},{"alias_kind":"pith_short_12","alias_value":"ESEBYIBVZYZ4","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"ESEBYIBVZYZ42H24","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"ESEBYIBV","created_at":"2026-05-18T12:31:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:ESEBYIBVZYZ42H245GRQ2WY2H5","target":"record","payload":{"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"},"canonical_sha256":"24881c2035ce33cd1f5ce9a30d5b1a3f4a9a0cdd9d9223424a28c350af6d5b4c","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"},"source_kind":"arxiv","source_id":"1705.11008","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":"2026-05-18T00:36:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QR+FVThiOE9GKl+VUvxQKIUyUw6073Vn8hxL42p+y4LfaUiobLMwOSJjr/sM0EfO+LitMS1s+wj3TBs9zz3pBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T14:24:12.843188Z"},"content_sha256":"e5e2625b305e80f89b095fda0d0fb24f92267e8e3bf219c67030f1ec87a016e8","schema_version":"1.0","event_id":"sha256:e5e2625b305e80f89b095fda0d0fb24f92267e8e3bf219c67030f1ec87a016e8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:ESEBYIBVZYZ42H245GRQ2WY2H5","target":"graph","payload":{"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:36:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ancomfiT/FoRNa91x8yCrxSzm19y9zkD8lpMmzeuIG8jziUxOiJ25gW8vsLYVMBw8E8EJcS3xBAJRX6i98SsBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-24T14:24:12.843812Z"},"content_sha256":"78aefa12815fd52ffe8a673df405e82854db6e77d3da2f5c02b4f7a0ca35ae7d","schema_version":"1.0","event_id":"sha256:78aefa12815fd52ffe8a673df405e82854db6e77d3da2f5c02b4f7a0ca35ae7d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/bundle.json","state_url":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/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":"2026-05-24T14:24:12Z","links":{"resolver":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5","bundle":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/bundle.json","state":"https://pith.science/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ESEBYIBVZYZ42H245GRQ2WY2H5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:ESEBYIBVZYZ42H245GRQ2WY2H5","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":"becdc86969f5cf33a0e945b46b5ebb9384376a008df9e9538e5987724f37dea4","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-31T10:00:15Z","title_canon_sha256":"d034abdc7a1bb3b387945434a6b1035f9140e428979d017be5371fe28b61d49b"},"schema_version":"1.0","source":{"id":"1705.11008","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.11008","created_at":"2026-05-18T00:36:38Z"},{"alias_kind":"arxiv_version","alias_value":"1705.11008v2","created_at":"2026-05-18T00:36:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.11008","created_at":"2026-05-18T00:36:38Z"},{"alias_kind":"pith_short_12","alias_value":"ESEBYIBVZYZ4","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"ESEBYIBVZYZ42H24","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"ESEBYIBV","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:78aefa12815fd52ffe8a673df405e82854db6e77d3da2f5c02b4f7a0ca35ae7d","target":"graph","created_at":"2026-05-18T00:36:38Z","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"},"paper":{"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,","authors_text":"Rajibul Shaikh, Sayan Kar","cross_cats":["hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-31T10:00:15Z","title":"Gravitational lensing by scalar-tensor wormholes and the energy conditions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.11008","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:e5e2625b305e80f89b095fda0d0fb24f92267e8e3bf219c67030f1ec87a016e8","target":"record","created_at":"2026-05-18T00:36:38Z","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":"becdc86969f5cf33a0e945b46b5ebb9384376a008df9e9538e5987724f37dea4","cross_cats_sorted":["hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2017-05-31T10:00:15Z","title_canon_sha256":"d034abdc7a1bb3b387945434a6b1035f9140e428979d017be5371fe28b61d49b"},"schema_version":"1.0","source":{"id":"1705.11008","kind":"arxiv","version":2}},"canonical_sha256":"24881c2035ce33cd1f5ce9a30d5b1a3f4a9a0cdd9d9223424a28c350af6d5b4c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24881c2035ce33cd1f5ce9a30d5b1a3f4a9a0cdd9d9223424a28c350af6d5b4c","first_computed_at":"2026-05-18T00:36:38.417674Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:38.417674Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Jf6iFqMcqFcg0RcqmHrKieCnO1DSfpSBBmt8Gqw42/fvWpST2qHF5CNMoO1Egps7RKB4jux54+/npF66skdSBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:38.418376Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.11008","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e5e2625b305e80f89b095fda0d0fb24f92267e8e3bf219c67030f1ec87a016e8","sha256:78aefa12815fd52ffe8a673df405e82854db6e77d3da2f5c02b4f7a0ca35ae7d"],"state_sha256":"12b61c2bbc5e27c707ef960f4793393a670351d29c99ef23fb30461777e6e821"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/ooPseb36MGemGdZiMtyPcy1qHVtGk8u/jcjYlHgXM/i+3ZcRGESVULOYCZFslGqgJW4mKONxxWQyK9/m4JrAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-24T14:24:12.847364Z","bundle_sha256":"6f89a23b7e8c69dddbc0c40d2fa296276157c228e1c8ad1ba1250bc6c161a037"}}