{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:VJT2M2Q4VSH6TWQPKNVXDA4TI4","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":"281ef558e3aa271b853a427e2a8b03d73593ac4c06bbb6e7e67ba7195e627297","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-04-02T14:36:08Z","title_canon_sha256":"6a9afbbf9eed86498a08078f2ed263f3e66f28995370e75b4a57f7c0d6457ce5"},"schema_version":"1.0","source":{"id":"2004.01038","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2004.01038","created_at":"2026-07-05T01:35:45Z"},{"alias_kind":"arxiv_version","alias_value":"2004.01038v3","created_at":"2026-07-05T01:35:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.01038","created_at":"2026-07-05T01:35:45Z"},{"alias_kind":"pith_short_12","alias_value":"VJT2M2Q4VSH6","created_at":"2026-07-05T01:35:45Z"},{"alias_kind":"pith_short_16","alias_value":"VJT2M2Q4VSH6TWQP","created_at":"2026-07-05T01:35:45Z"},{"alias_kind":"pith_short_8","alias_value":"VJT2M2Q4","created_at":"2026-07-05T01:35:45Z"}],"graph_snapshots":[{"event_id":"sha256:c621d6ddb83b79b4b20977f083a551028b6f335ddc4b3d33205b95242ba9474f","target":"graph","created_at":"2026-07-05T01:35:45Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2004.01038/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recently, a non-trivial $4D$ Einstein-Gauss-Bonnet (EGB) theory of gravity, by rescaling the GB coupling parameter as $\\alpha/(D-4)$, was formulated in \\cite{Glavan:2019inb}, which bypasses Lovelock's theorem and avoids Ostrogradsky instability. The theory admits a static spherically symmetric black hole, unlike $5D$ EGB or general relativity counterpart, which can have both Cauchy and event horizons. We generalize previous work, on gravitational lensing by a Schwarzschild black hole, in the strong and weak deflection limits to the $4D$ EGB black holes to calculate the deflection coefficients ","authors_text":"Rahul Kumar, Shafqat Ul Islam, Sushant G. Ghosh","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-04-02T14:36:08Z","title":"Gravitational lensing by black holes in the $4D$ Einstein-Gauss-Bonnet gravity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.01038","kind":"arxiv","version":3},"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":"sha256:53db85a4d26b81029f2e9cca925da5dde7a3a05e33c54c8cfe21bd54bf949362","target":"record","created_at":"2026-07-05T01:35:45Z","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":"281ef558e3aa271b853a427e2a8b03d73593ac4c06bbb6e7e67ba7195e627297","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2020-04-02T14:36:08Z","title_canon_sha256":"6a9afbbf9eed86498a08078f2ed263f3e66f28995370e75b4a57f7c0d6457ce5"},"schema_version":"1.0","source":{"id":"2004.01038","kind":"arxiv","version":3}},"canonical_sha256":"aa67a66a1cac8fe9da0f536b718393471a7b7f2cc1d20b41e43ee5c47238fe1b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa67a66a1cac8fe9da0f536b718393471a7b7f2cc1d20b41e43ee5c47238fe1b","first_computed_at":"2026-07-05T01:35:45.409392Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:35:45.409392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IzzILOa7LRkFIK+IDqhzH8Gs/9na3r5cQ7rDDs4/fRY1harwT6Mb+ObYXGWT6NlJ9BkTHyaWuxapmduoepraAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:35:45.409808Z","signed_message":"canonical_sha256_bytes"},"source_id":"2004.01038","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:53db85a4d26b81029f2e9cca925da5dde7a3a05e33c54c8cfe21bd54bf949362","sha256:c621d6ddb83b79b4b20977f083a551028b6f335ddc4b3d33205b95242ba9474f"],"state_sha256":"65b6d0617ff65141db0b381a5ac73ac5d958ae7570ef8b3c5857074ce85dc2a0"}