{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:ATHSVRMJ63PY234XRWBSDSO65D","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":"26d39b178d94cbbab4347d2944acdbd96b9eb751c374fc35aee632517988fa03","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-23T11:41:00Z","title_canon_sha256":"d9ffe2f2092e6966ba96d0321a31bbd0ebee476c0d7b1a92a22550d4918b43b1"},"schema_version":"1.0","source":{"id":"1610.07154","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07154","created_at":"2026-05-18T00:47:49Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07154v1","created_at":"2026-05-18T00:47:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07154","created_at":"2026-05-18T00:47:49Z"},{"alias_kind":"pith_short_12","alias_value":"ATHSVRMJ63PY","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"ATHSVRMJ63PY234X","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"ATHSVRMJ","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:652a559b88b7e738b4b696fbcb9dc5b1e3ec0d6174cfb1e4627e2b8ede892676","target":"graph","created_at":"2026-05-18T00:47:49Z","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 investigate the effects of observatory locations on the probability of discovering optical/infrared counterparts of gravitational wave sources. We show that for the LIGO--Virgo network, the odds of discovering optical/infrared (OIR) counterparts show some latitude dependence, but weak or no longitudinal dependence. A stronger effect is seen to arise from the timing of LIGO/Virgo observing runs, with northern OIR observatories having better chances of finding the counterparts in northern winters. Assuming identical technical capabilities, the tentative mid-2017 three-detector network observi","authors_text":"((1) IISER Pune, (2) IUCAA, (3) IISER Kolkata, 4), (4) ICTS Bangalore, 5), (5) Nikhef - National Institute for Subatomic Physics, 6), (6) Department of Physics & Astronomy, Aravind P. Ravi (3, Archisman Ghosh (4, Sukanta Bose (2, Varun Bhalerao (2), Varun Srivastava (1), Washington State University)","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-23T11:41:00Z","title":"Geographic and seasonal influences on optical followup of gravitational wave events"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07154","kind":"arxiv","version":1},"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:b1bdd337edbc276c7600406285dfe1ed3f6b71893e4da46b67eb034c588459a4","target":"record","created_at":"2026-05-18T00:47:49Z","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":"26d39b178d94cbbab4347d2944acdbd96b9eb751c374fc35aee632517988fa03","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-10-23T11:41:00Z","title_canon_sha256":"d9ffe2f2092e6966ba96d0321a31bbd0ebee476c0d7b1a92a22550d4918b43b1"},"schema_version":"1.0","source":{"id":"1610.07154","kind":"arxiv","version":1}},"canonical_sha256":"04cf2ac589f6df8d6f978d8321c9dee8f1a2627f29fa1c2108cef66d1d256f3a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"04cf2ac589f6df8d6f978d8321c9dee8f1a2627f29fa1c2108cef66d1d256f3a","first_computed_at":"2026-05-18T00:47:49.620712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:47:49.620712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8qVsIDtFwzvn0uMh8WuqRWhVL4wBUwxpaLugaya7DLctMVkvl37zIeQMbMuEOFy/jysWOkZQBYoQY3ysyUYNCw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:47:49.621303Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07154","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b1bdd337edbc276c7600406285dfe1ed3f6b71893e4da46b67eb034c588459a4","sha256:652a559b88b7e738b4b696fbcb9dc5b1e3ec0d6174cfb1e4627e2b8ede892676"],"state_sha256":"91233078f4f4f47c0938b3268560e6ead3dee58606ef1e4b108a6b4ba4718cf8"}