{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:WV7XZBZF4KQ2PRFJWGUIDTTFMB","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":"7c012697f88866970f37697c2fd1445314fd0dfb302f50229572270ff4fd0a22","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-05T09:25:07Z","title_canon_sha256":"c53426d9cc5879b18574ae1e109fb29a567039623db6ea28ebfc54a02aea492f"},"schema_version":"1.0","source":{"id":"1209.0903","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1209.0903","created_at":"2026-05-18T01:12:19Z"},{"alias_kind":"arxiv_version","alias_value":"1209.0903v1","created_at":"2026-05-18T01:12:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1209.0903","created_at":"2026-05-18T01:12:19Z"},{"alias_kind":"pith_short_12","alias_value":"WV7XZBZF4KQ2","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"WV7XZBZF4KQ2PRFJ","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"WV7XZBZF","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:c25394054245fb0a436b22bd850528b80f7b2a60d0490acf1204abe2a99315e4","target":"graph","created_at":"2026-05-18T01:12:19Z","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 consider the femto-lensing due to a cosmic string. If a cosmic string with the deficit angle $\\Delta\\sim 100$ [femto-arcsec] $\\sim10^{-18}$ [rad] exists around the line of sight to a gamma-ray burst, we may observe characteristic interference patterns caused by gravitational lensing in the energy spectrum of the gamma-ray burst. This \"femto-lensing\" event was first proposed as a tool to probe small mass primordial black holes. In this paper, we propose use of the femto-lensing to probe cosmic strings with extremely small tension. Observability conditions and the event rate are discussed. Di","authors_text":"Chul-Moon Yoo, Daisuke Yamauchi, Keitaro Takahashi, Ryo Saito, Yuuiti Sendouda","cross_cats":["gr-qc","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-05T09:25:07Z","title":"Femto-lensing due to a Cosmic String"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1209.0903","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:a2844fc291686811aedef73f4d651a43b3fbed5d9789e7b2f3c106c34ac3b652","target":"record","created_at":"2026-05-18T01:12:19Z","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":"7c012697f88866970f37697c2fd1445314fd0dfb302f50229572270ff4fd0a22","cross_cats_sorted":["gr-qc","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-09-05T09:25:07Z","title_canon_sha256":"c53426d9cc5879b18574ae1e109fb29a567039623db6ea28ebfc54a02aea492f"},"schema_version":"1.0","source":{"id":"1209.0903","kind":"arxiv","version":1}},"canonical_sha256":"b57f7c8725e2a1a7c4a9b1a881ce65607af7f8f97737a18a538315e5781a1d30","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b57f7c8725e2a1a7c4a9b1a881ce65607af7f8f97737a18a538315e5781a1d30","first_computed_at":"2026-05-18T01:12:19.166262Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:12:19.166262Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ftbezUNzXBAk2CG2OrQQpVTT6jPcOdrA6skjG5PexQeM4PzJROuE6M8eKexkDFEZDT8HKPxi5VYO7MqKB20yCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:12:19.166597Z","signed_message":"canonical_sha256_bytes"},"source_id":"1209.0903","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2844fc291686811aedef73f4d651a43b3fbed5d9789e7b2f3c106c34ac3b652","sha256:c25394054245fb0a436b22bd850528b80f7b2a60d0490acf1204abe2a99315e4"],"state_sha256":"c72a2be394234286e4ca3b345a52ed540bc8246392d4442bb5974d4b853c7fa4"}