{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:XMLDZGSXAJVZE4E4G4XY6CCDVB","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":"15d258471eb6766e83fa7447a23c61ad8bce36600c359090352a9d347d5264c1","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-09-07T15:11:14Z","title_canon_sha256":"e55f3e6166e9c948fd4d61365de7ba4f6f5202a6ab68f100830a93b3460b78a4"},"schema_version":"1.0","source":{"id":"1909.03281","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1909.03281","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"arxiv_version","alias_value":"1909.03281v2","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.03281","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_12","alias_value":"XMLDZGSXAJVZ","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_16","alias_value":"XMLDZGSXAJVZE4E4","created_at":"2026-07-05T00:17:14Z"},{"alias_kind":"pith_short_8","alias_value":"XMLDZGSX","created_at":"2026-07-05T00:17:14Z"}],"graph_snapshots":[{"event_id":"sha256:06de9f641bf462c11ce819148b39ab12daf795e4cbd73d77281358d8006f9849","target":"graph","created_at":"2026-07-05T00:17:14Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1909.03281/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a comprehensive review of all observations of the eclipsing recurrent Nova LMC 1968 in the Large Magellanic Cloud which was previously observed in eruption in 1968, 1990, 2002, 2010, and most recently in 2016. We derive a probable recurrence time of $6.2 \\pm 1.2$ years and provide the ephemerides of the eclipse. In the ultraviolet-optical-IR photometry the light curve shows high variability right from the first observation around two days after eruption. Therefore no colour changes can be substantiated. Outburst spectra from 2016 and 1990 are very similar and are dominated by H and ","authors_text":"A.A. Breeveld, A. Evans, A.P. Beardmore, A. Udalski, F. Di Mille, F. Walter, G.J. Schwarz, I. Soszy\\'nski, J.P. Osborne, J. Skowron, K.L. Page, M. Henze, M.J. Darnley, M.K. Szyma\\'nski, N. Morrell, N.P.M. Kuin, P. Mr\\'oz, R. Angeloni, R.D. Gehrz, R. Poleski, S.C. Williams, S. N. Shore, S. Starrfield, T. Bohlsen, U. Munari, V.A.R.M. Ribeiro","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-09-07T15:11:14Z","title":"The January 2016 eruption of recurrent nova LMC 1968"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.03281","kind":"arxiv","version":2},"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":"sha256:072e04cd921345e68a572b7015707c3d2c2067753be3b45c64dd797db26d2aaf","target":"record","created_at":"2026-07-05T00:17:14Z","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":"15d258471eb6766e83fa7447a23c61ad8bce36600c359090352a9d347d5264c1","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-09-07T15:11:14Z","title_canon_sha256":"e55f3e6166e9c948fd4d61365de7ba4f6f5202a6ab68f100830a93b3460b78a4"},"schema_version":"1.0","source":{"id":"1909.03281","kind":"arxiv","version":2}},"canonical_sha256":"bb163c9a57026b92709c372f8f0843a8683af97032538b553e65db622da93e44","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bb163c9a57026b92709c372f8f0843a8683af97032538b553e65db622da93e44","first_computed_at":"2026-07-05T00:17:14.149421Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:17:14.149421Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LFE4zxvYFYVVKwCUiLV6lbcA+SctWGrl2Cbj2E1VIF2dT9ZSNyaiJp0FT8K5+BjBd0s+TZqzFmppvbAP/LOeDA==","signature_status":"signed_v1","signed_at":"2026-07-05T00:17:14.149930Z","signed_message":"canonical_sha256_bytes"},"source_id":"1909.03281","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:072e04cd921345e68a572b7015707c3d2c2067753be3b45c64dd797db26d2aaf","sha256:06de9f641bf462c11ce819148b39ab12daf795e4cbd73d77281358d8006f9849"],"state_sha256":"cda60ec6d1e2c4fbeccf51dc368b762d42b31340226ee7fdbad0e5373cd305f7"}