{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:CFRM3VFX3WRZZTWG5LH7AO4XLV","short_pith_number":"pith:CFRM3VFX","canonical_record":{"source":{"id":"1803.06703","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-18T17:43:24Z","cross_cats_sorted":[],"title_canon_sha256":"54768c822497ec1668d24ba342b20957e5f81d90415dd49f6d9dcc6aa23b5a61","abstract_canon_sha256":"6b2135f3d55b731349f5f59bc801497befc74d827770f86bcc01b0827733da32"},"schema_version":"1.0"},"canonical_sha256":"1162cdd4b7dda39ccec6eacff03b975d7ab3ab86301640ea936f3e8b0ec43f8b","source":{"kind":"arxiv","id":"1803.06703","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.06703","created_at":"2026-05-18T00:17:03Z"},{"alias_kind":"arxiv_version","alias_value":"1803.06703v1","created_at":"2026-05-18T00:17:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.06703","created_at":"2026-05-18T00:17:03Z"},{"alias_kind":"pith_short_12","alias_value":"CFRM3VFX3WRZ","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CFRM3VFX3WRZZTWG","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CFRM3VFX","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:CFRM3VFX3WRZZTWG5LH7AO4XLV","target":"record","payload":{"canonical_record":{"source":{"id":"1803.06703","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-18T17:43:24Z","cross_cats_sorted":[],"title_canon_sha256":"54768c822497ec1668d24ba342b20957e5f81d90415dd49f6d9dcc6aa23b5a61","abstract_canon_sha256":"6b2135f3d55b731349f5f59bc801497befc74d827770f86bcc01b0827733da32"},"schema_version":"1.0"},"canonical_sha256":"1162cdd4b7dda39ccec6eacff03b975d7ab3ab86301640ea936f3e8b0ec43f8b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:03.948396Z","signature_b64":"v/Ruz2WR2uncpX12CniW3YbtpVhV/tVoDsMDFHXkfCKAJG3hDgDLt2eEai1idyB1LkDb4Zb6eXe3s0EEWtw4Aw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1162cdd4b7dda39ccec6eacff03b975d7ab3ab86301640ea936f3e8b0ec43f8b","last_reissued_at":"2026-05-18T00:17:03.947671Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:03.947671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1803.06703","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":"2026-05-18T00:17:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xIO/QNUCgEehv7bvhbRbQ92GnlYxKFNn6MsxV3yBFlM25n4HqLCNO8sTfUCm1UzxKv9sV+KA1Pi6+WUXQGB/DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T11:16:54.452517Z"},"content_sha256":"5b73a07477c102725f7ac215707567df35b2f013da5b7d4435cd2ddecc93d763","schema_version":"1.0","event_id":"sha256:5b73a07477c102725f7ac215707567df35b2f013da5b7d4435cd2ddecc93d763"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:CFRM3VFX3WRZZTWG5LH7AO4XLV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The X-ray modulation of PSR J2032+4127/MT91 213 during the Periastron Passage in 2017","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. K. H. Kong, C. W. Ng, C. Y. Hui, J. Takata, K. L. Li, K. S. Cheng, P. H. T. Tam","submitted_at":"2018-03-18T17:43:24Z","abstract_excerpt":"We present the Neil Gehrels Swift Observatory (Swift), Fermi Large Area Telescope (Fermi-LAT), and Karl G. Jansky Very Large Array (VLA) observations of the gamma-ray binary PSR J2032+4127/MT91 213, of which the periastron passage has just occurred in November 2017. In the Swift X-ray light curve, the flux was steadily increasing before mid-October 2017, however, a sharp X-ray dip on a weekly time-scale is seen during the periastron passage, followed by a post-periastron X-ray flare lasting for ~20 days. We suggest that the X-ray dip is caused by (i) an increase of the magnetization parameter "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.06703","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":"2026-05-18T00:17:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sNEAAjG7ZxsNKs/ZW0/rgdKIdNoteY6EXA8mJE4i0ZtxvsgNt+WUkLPo5y2Faf5QiiObjGqF9eAu6z9Crh/2Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T11:16:54.452867Z"},"content_sha256":"18aae1a1266e3a4d87da9c4c1473c12b27f50cce498361458b64e49b259e22a7","schema_version":"1.0","event_id":"sha256:18aae1a1266e3a4d87da9c4c1473c12b27f50cce498361458b64e49b259e22a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CFRM3VFX3WRZZTWG5LH7AO4XLV/bundle.json","state_url":"https://pith.science/pith/CFRM3VFX3WRZZTWG5LH7AO4XLV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CFRM3VFX3WRZZTWG5LH7AO4XLV/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":"2026-06-05T11:16:54Z","links":{"resolver":"https://pith.science/pith/CFRM3VFX3WRZZTWG5LH7AO4XLV","bundle":"https://pith.science/pith/CFRM3VFX3WRZZTWG5LH7AO4XLV/bundle.json","state":"https://pith.science/pith/CFRM3VFX3WRZZTWG5LH7AO4XLV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CFRM3VFX3WRZZTWG5LH7AO4XLV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:CFRM3VFX3WRZZTWG5LH7AO4XLV","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":"6b2135f3d55b731349f5f59bc801497befc74d827770f86bcc01b0827733da32","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-18T17:43:24Z","title_canon_sha256":"54768c822497ec1668d24ba342b20957e5f81d90415dd49f6d9dcc6aa23b5a61"},"schema_version":"1.0","source":{"id":"1803.06703","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.06703","created_at":"2026-05-18T00:17:03Z"},{"alias_kind":"arxiv_version","alias_value":"1803.06703v1","created_at":"2026-05-18T00:17:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.06703","created_at":"2026-05-18T00:17:03Z"},{"alias_kind":"pith_short_12","alias_value":"CFRM3VFX3WRZ","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"CFRM3VFX3WRZZTWG","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"CFRM3VFX","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:18aae1a1266e3a4d87da9c4c1473c12b27f50cce498361458b64e49b259e22a7","target":"graph","created_at":"2026-05-18T00:17:03Z","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 present the Neil Gehrels Swift Observatory (Swift), Fermi Large Area Telescope (Fermi-LAT), and Karl G. Jansky Very Large Array (VLA) observations of the gamma-ray binary PSR J2032+4127/MT91 213, of which the periastron passage has just occurred in November 2017. In the Swift X-ray light curve, the flux was steadily increasing before mid-October 2017, however, a sharp X-ray dip on a weekly time-scale is seen during the periastron passage, followed by a post-periastron X-ray flare lasting for ~20 days. We suggest that the X-ray dip is caused by (i) an increase of the magnetization parameter ","authors_text":"A. K. H. Kong, C. W. Ng, C. Y. Hui, J. Takata, K. L. Li, K. S. Cheng, P. H. T. Tam","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-18T17:43:24Z","title":"The X-ray modulation of PSR J2032+4127/MT91 213 during the Periastron Passage in 2017"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.06703","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":"sha256:5b73a07477c102725f7ac215707567df35b2f013da5b7d4435cd2ddecc93d763","target":"record","created_at":"2026-05-18T00:17:03Z","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":"6b2135f3d55b731349f5f59bc801497befc74d827770f86bcc01b0827733da32","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-03-18T17:43:24Z","title_canon_sha256":"54768c822497ec1668d24ba342b20957e5f81d90415dd49f6d9dcc6aa23b5a61"},"schema_version":"1.0","source":{"id":"1803.06703","kind":"arxiv","version":1}},"canonical_sha256":"1162cdd4b7dda39ccec6eacff03b975d7ab3ab86301640ea936f3e8b0ec43f8b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1162cdd4b7dda39ccec6eacff03b975d7ab3ab86301640ea936f3e8b0ec43f8b","first_computed_at":"2026-05-18T00:17:03.947671Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:17:03.947671Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"v/Ruz2WR2uncpX12CniW3YbtpVhV/tVoDsMDFHXkfCKAJG3hDgDLt2eEai1idyB1LkDb4Zb6eXe3s0EEWtw4Aw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:17:03.948396Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.06703","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5b73a07477c102725f7ac215707567df35b2f013da5b7d4435cd2ddecc93d763","sha256:18aae1a1266e3a4d87da9c4c1473c12b27f50cce498361458b64e49b259e22a7"],"state_sha256":"02ad04c587c378d6309d915c858897db11ddc7b76e8d63321621c063f591c3bd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nFxPtO2EdVbE2ylT5Wp+ArHXCa0Yby+uNVWNuQ4hVVgBPYj1BSCvHHuiY7tnJ+3B0H2Hnq57SccR3//kqew/Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T11:16:54.454891Z","bundle_sha256":"ffda2f45585c39918872f7aef28c77d1fdf38bac7ceb867569ce3cc62bfd4a8c"}}