{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:D4B26TM3JELPAHASLTIEZYXLAR","short_pith_number":"pith:D4B26TM3","canonical_record":{"source":{"id":"1811.03702","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-08T22:45:05Z","cross_cats_sorted":[],"title_canon_sha256":"fac40b5424bbff09ebf052b287f5e69c1b838fcd01bf70dab3684463f2e73cf9","abstract_canon_sha256":"5fb27db2df913f4ff76d9972dcb55b2f40a268cae3122bde9f909e5e41ab48c6"},"schema_version":"1.0"},"canonical_sha256":"1f03af4d9b4916f01c125cd04ce2eb04620f4cb28d6e48fd58b0dbf21cd1fba9","source":{"kind":"arxiv","id":"1811.03702","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03702","created_at":"2026-05-17T23:59:13Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03702v1","created_at":"2026-05-17T23:59:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03702","created_at":"2026-05-17T23:59:13Z"},{"alias_kind":"pith_short_12","alias_value":"D4B26TM3JELP","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D4B26TM3JELPAHAS","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D4B26TM3","created_at":"2026-05-18T12:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:D4B26TM3JELPAHASLTIEZYXLAR","target":"record","payload":{"canonical_record":{"source":{"id":"1811.03702","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-08T22:45:05Z","cross_cats_sorted":[],"title_canon_sha256":"fac40b5424bbff09ebf052b287f5e69c1b838fcd01bf70dab3684463f2e73cf9","abstract_canon_sha256":"5fb27db2df913f4ff76d9972dcb55b2f40a268cae3122bde9f909e5e41ab48c6"},"schema_version":"1.0"},"canonical_sha256":"1f03af4d9b4916f01c125cd04ce2eb04620f4cb28d6e48fd58b0dbf21cd1fba9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:59:13.774052Z","signature_b64":"lTEeSKmF+tye6ohzgbbDI7YliYmLoBBbOIorApnYTDx2/ZhQp+U+DLTx3E6aJC4VUf4Dc6dCfxxduNnn/JT/Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f03af4d9b4916f01c125cd04ce2eb04620f4cb28d6e48fd58b0dbf21cd1fba9","last_reissued_at":"2026-05-17T23:59:13.773550Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:59:13.773550Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.03702","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:59:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"svQUeHTPJuJcei6fig2BcnyHle4RFf4KVXQA75qjw4Gf4z36GVKRvbIVwBqTG2PVEUjtU0wL99mfLydXVckWBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T02:48:29.507171Z"},"content_sha256":"78fce99cb52c5e8839bf927eeaa1c7c62318c938036dd49f73895587c44349ff","schema_version":"1.0","event_id":"sha256:78fce99cb52c5e8839bf927eeaa1c7c62318c938036dd49f73895587c44349ff"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:D4B26TM3JELPAHASLTIEZYXLAR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Systematical study of pulsar light curves with special relativistic effects","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Hajime Sotani, Umpei Miyamoto","submitted_at":"2018-11-08T22:45:05Z","abstract_excerpt":"We systematically study pulsar light curves, taking into account the special relativistic effect, i.e., the Doppler factor due to the fast spin of the neutron stars, together with the time delay, which comes from the difference of the travel times depending on the position of the spots. For this purpose, first we derive the basic equations with the general expression of the metric for the static, spherically symmetric spacetime, where for simplicity we adopt the pointlike spot approximation for the antipodal spots associated with the magnetic polar cap model. Then, we calculate the light curve"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03702","kind":"arxiv","version":1},"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":"2026-05-17T23:59:13Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IXoW/2NeD4TtfwTp7juk4T7hHLByGcdziApr/qoirsYbkzoCrQno0KVpFVrbV7RkkPWYpfw3ZZROg1T3VjaqDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T02:48:29.507528Z"},"content_sha256":"3327196611d2e11a15d235566c66175d05327d3ec19ebfe0a18a80c0ec2b876c","schema_version":"1.0","event_id":"sha256:3327196611d2e11a15d235566c66175d05327d3ec19ebfe0a18a80c0ec2b876c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D4B26TM3JELPAHASLTIEZYXLAR/bundle.json","state_url":"https://pith.science/pith/D4B26TM3JELPAHASLTIEZYXLAR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D4B26TM3JELPAHASLTIEZYXLAR/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":"2026-06-07T02:48:29Z","links":{"resolver":"https://pith.science/pith/D4B26TM3JELPAHASLTIEZYXLAR","bundle":"https://pith.science/pith/D4B26TM3JELPAHASLTIEZYXLAR/bundle.json","state":"https://pith.science/pith/D4B26TM3JELPAHASLTIEZYXLAR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D4B26TM3JELPAHASLTIEZYXLAR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:D4B26TM3JELPAHASLTIEZYXLAR","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":"5fb27db2df913f4ff76d9972dcb55b2f40a268cae3122bde9f909e5e41ab48c6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-08T22:45:05Z","title_canon_sha256":"fac40b5424bbff09ebf052b287f5e69c1b838fcd01bf70dab3684463f2e73cf9"},"schema_version":"1.0","source":{"id":"1811.03702","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.03702","created_at":"2026-05-17T23:59:13Z"},{"alias_kind":"arxiv_version","alias_value":"1811.03702v1","created_at":"2026-05-17T23:59:13Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.03702","created_at":"2026-05-17T23:59:13Z"},{"alias_kind":"pith_short_12","alias_value":"D4B26TM3JELP","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"D4B26TM3JELPAHAS","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"D4B26TM3","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:3327196611d2e11a15d235566c66175d05327d3ec19ebfe0a18a80c0ec2b876c","target":"graph","created_at":"2026-05-17T23:59:13Z","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 systematically study pulsar light curves, taking into account the special relativistic effect, i.e., the Doppler factor due to the fast spin of the neutron stars, together with the time delay, which comes from the difference of the travel times depending on the position of the spots. For this purpose, first we derive the basic equations with the general expression of the metric for the static, spherically symmetric spacetime, where for simplicity we adopt the pointlike spot approximation for the antipodal spots associated with the magnetic polar cap model. Then, we calculate the light curve","authors_text":"Hajime Sotani, Umpei Miyamoto","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-08T22:45:05Z","title":"Systematical study of pulsar light curves with special relativistic effects"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.03702","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":"sha256:78fce99cb52c5e8839bf927eeaa1c7c62318c938036dd49f73895587c44349ff","target":"record","created_at":"2026-05-17T23:59:13Z","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":"5fb27db2df913f4ff76d9972dcb55b2f40a268cae3122bde9f909e5e41ab48c6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-11-08T22:45:05Z","title_canon_sha256":"fac40b5424bbff09ebf052b287f5e69c1b838fcd01bf70dab3684463f2e73cf9"},"schema_version":"1.0","source":{"id":"1811.03702","kind":"arxiv","version":1}},"canonical_sha256":"1f03af4d9b4916f01c125cd04ce2eb04620f4cb28d6e48fd58b0dbf21cd1fba9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f03af4d9b4916f01c125cd04ce2eb04620f4cb28d6e48fd58b0dbf21cd1fba9","first_computed_at":"2026-05-17T23:59:13.773550Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:59:13.773550Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"lTEeSKmF+tye6ohzgbbDI7YliYmLoBBbOIorApnYTDx2/ZhQp+U+DLTx3E6aJC4VUf4Dc6dCfxxduNnn/JT/Cw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:59:13.774052Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.03702","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:78fce99cb52c5e8839bf927eeaa1c7c62318c938036dd49f73895587c44349ff","sha256:3327196611d2e11a15d235566c66175d05327d3ec19ebfe0a18a80c0ec2b876c"],"state_sha256":"cd3b4b8b800605b30c11df118e5bbe107ac102d97600bd13be4e490c806d17d9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EHFLb7hGgPDkt5FdeeFdb7I7ROQuWLBCEuRlZjMdCp9DNeDjHmMCvsXeNldbOXuP+wwZzGPA9DEWFVD4ZflzDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T02:48:29.509568Z","bundle_sha256":"e392d6fa22ad553aaa3fdb8f980e45cc9a8b968cb4bbabe2bec3b5598627fdad"}}