{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:FKP4I55X5VM6O6IB2ETSSF52C5","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":"703470a4945b050988c986e966aca0b41cce0a3a96b3892c37776bd472dca0db","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2001-05-09T13:42:20Z","title_canon_sha256":"02cca3a4cac29d356e48eaf75057c9e12c56dbb1dca98b83ef7b801c3fd19fd8"},"schema_version":"1.0","source":{"id":"gr-qc/0105033","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"gr-qc/0105033","created_at":"2026-05-18T02:37:36Z"},{"alias_kind":"arxiv_version","alias_value":"gr-qc/0105033v1","created_at":"2026-05-18T02:37:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.gr-qc/0105033","created_at":"2026-05-18T02:37:36Z"},{"alias_kind":"pith_short_12","alias_value":"FKP4I55X5VM6","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"FKP4I55X5VM6O6IB","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"FKP4I55X","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:19039f4dab3710a4a2278eeaa574bc47c22dcbe512e0c206bd53b0601ee23add","target":"graph","created_at":"2026-05-18T02:37:36Z","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":"The principal purpose of this paper is to study the effect of an impulsive light-like signal on neighbouring test particles. Such a signal can in general be unambiguously decomposed into a light-like shell of null matter and an impulsive gravitational wave. Our results are: (a) If there is anisotropic stress in the light-like shell then test particles initially moving in the signal front are displaced out of this 2-surface after encountering the signal; (b) For a light-like shell with no anisotropic stress accompanying a gravitational wave the effect of the signal on test particles moving in t","authors_text":"C. Barrab\\`es (U. of Tours, Dublin, France), Ireland), P. A. Hogan (UCD","cross_cats":[],"headline":"","license":"","primary_cat":"gr-qc","submitted_at":"2001-05-09T13:42:20Z","title":"Detection of Impulsive Light-Like Signals in General Relativity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"gr-qc/0105033","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":"sha256:93590c7e24619cc52fa2129a4bf802c49071c68c4c0df382ad7f5347b5b27a2c","target":"record","created_at":"2026-05-18T02:37:36Z","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":"703470a4945b050988c986e966aca0b41cce0a3a96b3892c37776bd472dca0db","cross_cats_sorted":[],"license":"","primary_cat":"gr-qc","submitted_at":"2001-05-09T13:42:20Z","title_canon_sha256":"02cca3a4cac29d356e48eaf75057c9e12c56dbb1dca98b83ef7b801c3fd19fd8"},"schema_version":"1.0","source":{"id":"gr-qc/0105033","kind":"arxiv","version":1}},"canonical_sha256":"2a9fc477b7ed59e77901d1272917ba17597d4ba15bbca5f5ba235777e83c5bea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a9fc477b7ed59e77901d1272917ba17597d4ba15bbca5f5ba235777e83c5bea","first_computed_at":"2026-05-18T02:37:36.036071Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:36.036071Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xKcqrmcnq2DLcMvUbfWSDJcKBBjy6PVPUrM2Wj5tb8rMzc4ATHIaG7yvbt+VQRc+dqYX5+fIrjuIBQwKK7xtAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:36.036444Z","signed_message":"canonical_sha256_bytes"},"source_id":"gr-qc/0105033","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:93590c7e24619cc52fa2129a4bf802c49071c68c4c0df382ad7f5347b5b27a2c","sha256:19039f4dab3710a4a2278eeaa574bc47c22dcbe512e0c206bd53b0601ee23add"],"state_sha256":"8699860c4c0b7d14e417b0520b1451cc522223fad149d3a8992823e874294113"}