{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:UOYXQIVY3JTXONLY3SRSU7BXF4","short_pith_number":"pith:UOYXQIVY","canonical_record":{"source":{"id":"1009.5376","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-27T20:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"5c864f806656397c9bd78ee35d507e84bbf42ee35fdd5b153ec954608160fde2","abstract_canon_sha256":"edbb33cfebcf2244118c0c6f3aa2ec5b17908dd80b0adaccc94ce000bd75c59d"},"schema_version":"1.0"},"canonical_sha256":"a3b17822b8da67773578dca32a7c372f1fff5528d04b0df61551ff9140a6639b","source":{"kind":"arxiv","id":"1009.5376","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5376","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5376v2","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5376","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"pith_short_12","alias_value":"UOYXQIVY3JTX","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"UOYXQIVY3JTXONLY","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"UOYXQIVY","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:UOYXQIVY3JTXONLY3SRSU7BXF4","target":"record","payload":{"canonical_record":{"source":{"id":"1009.5376","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-27T20:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"5c864f806656397c9bd78ee35d507e84bbf42ee35fdd5b153ec954608160fde2","abstract_canon_sha256":"edbb33cfebcf2244118c0c6f3aa2ec5b17908dd80b0adaccc94ce000bd75c59d"},"schema_version":"1.0"},"canonical_sha256":"a3b17822b8da67773578dca32a7c372f1fff5528d04b0df61551ff9140a6639b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:38:39.390444Z","signature_b64":"pHlbZEommXlV0WOLtg4Hx+coJF1fbTqEhBy47JKUDNrnbGEXIDSxtoqQH/QZYQSUCggrPP+tI7VZI0A1GnWYCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a3b17822b8da67773578dca32a7c372f1fff5528d04b0df61551ff9140a6639b","last_reissued_at":"2026-05-18T04:38:39.389614Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:38:39.389614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.5376","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:38:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"M1Rzg4/xx5dA9zVMyWY0bKHIERegwgsWyAsyWaZX4PRmSUYbHcbWYHuxxOqs6Rz7FcTb8YSsnRwna/B/TrXTAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T14:00:41.466624Z"},"content_sha256":"3e68e818c0190c138ec3c5e4dc49d659fa34fc9bd71ce99ee70bbce602e68901","schema_version":"1.0","event_id":"sha256:3e68e818c0190c138ec3c5e4dc49d659fa34fc9bd71ce99ee70bbce602e68901"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:UOYXQIVY3JTXONLY3SRSU7BXF4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. X. Enigmatic Class of Double Periodic Variables in the Large Magellanic Cloud","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Udalski, G. Pietrzy\\'nski, I. Soszy\\'nski, K. Ulaczyk, {\\L}. Wyrzykowski, M.K. Szyma\\'nski, M. Kubiak, R. Poleski","submitted_at":"2010-09-27T20:00:02Z","abstract_excerpt":"The tenth part of the OGLE-III Catalog of Variable Stars contains 125 Double Periodic Variables (DPVs) from the Large Magellanic Cloud. DPVs are semi-detached binaries which show additional variability with a period around 33 times longer than the orbital period. The cause of this long cycle is not known and previous studies suggest it involves circumbinary matter. We discuss the properties of the whole sample of the LMC DPVs and put more attention to particularly interesting objects which may be crucial for verifying hypothesis explaining long cycle variability. Secondary eclipses of one of t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5376","kind":"arxiv","version":2},"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":"2026-05-18T04:38:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ye/AF+6K4Ly2rbSLuoCrCGOxOuUEp5tDu0UaPYWVmM6GdUmLUERPsj1954Z9VHo3WHfUNXsupS4jF5pDKlFhAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-08T14:00:41.467079Z"},"content_sha256":"b41054839eabab12d807835ad06c29df2b5dae75ca7aecb394003bd0aeb62770","schema_version":"1.0","event_id":"sha256:b41054839eabab12d807835ad06c29df2b5dae75ca7aecb394003bd0aeb62770"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UOYXQIVY3JTXONLY3SRSU7BXF4/bundle.json","state_url":"https://pith.science/pith/UOYXQIVY3JTXONLY3SRSU7BXF4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UOYXQIVY3JTXONLY3SRSU7BXF4/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":"2026-06-08T14:00:41Z","links":{"resolver":"https://pith.science/pith/UOYXQIVY3JTXONLY3SRSU7BXF4","bundle":"https://pith.science/pith/UOYXQIVY3JTXONLY3SRSU7BXF4/bundle.json","state":"https://pith.science/pith/UOYXQIVY3JTXONLY3SRSU7BXF4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UOYXQIVY3JTXONLY3SRSU7BXF4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:UOYXQIVY3JTXONLY3SRSU7BXF4","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":"edbb33cfebcf2244118c0c6f3aa2ec5b17908dd80b0adaccc94ce000bd75c59d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-27T20:00:02Z","title_canon_sha256":"5c864f806656397c9bd78ee35d507e84bbf42ee35fdd5b153ec954608160fde2"},"schema_version":"1.0","source":{"id":"1009.5376","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.5376","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"arxiv_version","alias_value":"1009.5376v2","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.5376","created_at":"2026-05-18T04:38:39Z"},{"alias_kind":"pith_short_12","alias_value":"UOYXQIVY3JTX","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"UOYXQIVY3JTXONLY","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"UOYXQIVY","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:b41054839eabab12d807835ad06c29df2b5dae75ca7aecb394003bd0aeb62770","target":"graph","created_at":"2026-05-18T04:38:39Z","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 tenth part of the OGLE-III Catalog of Variable Stars contains 125 Double Periodic Variables (DPVs) from the Large Magellanic Cloud. DPVs are semi-detached binaries which show additional variability with a period around 33 times longer than the orbital period. The cause of this long cycle is not known and previous studies suggest it involves circumbinary matter. We discuss the properties of the whole sample of the LMC DPVs and put more attention to particularly interesting objects which may be crucial for verifying hypothesis explaining long cycle variability. Secondary eclipses of one of t","authors_text":"A. Udalski, G. Pietrzy\\'nski, I. Soszy\\'nski, K. Ulaczyk, {\\L}. Wyrzykowski, M.K. Szyma\\'nski, M. Kubiak, R. Poleski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-27T20:00:02Z","title":"The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. X. Enigmatic Class of Double Periodic Variables in the Large Magellanic Cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5376","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":"sha256:3e68e818c0190c138ec3c5e4dc49d659fa34fc9bd71ce99ee70bbce602e68901","target":"record","created_at":"2026-05-18T04:38:39Z","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":"edbb33cfebcf2244118c0c6f3aa2ec5b17908dd80b0adaccc94ce000bd75c59d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-27T20:00:02Z","title_canon_sha256":"5c864f806656397c9bd78ee35d507e84bbf42ee35fdd5b153ec954608160fde2"},"schema_version":"1.0","source":{"id":"1009.5376","kind":"arxiv","version":2}},"canonical_sha256":"a3b17822b8da67773578dca32a7c372f1fff5528d04b0df61551ff9140a6639b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a3b17822b8da67773578dca32a7c372f1fff5528d04b0df61551ff9140a6639b","first_computed_at":"2026-05-18T04:38:39.389614Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:38:39.389614Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pHlbZEommXlV0WOLtg4Hx+coJF1fbTqEhBy47JKUDNrnbGEXIDSxtoqQH/QZYQSUCggrPP+tI7VZI0A1GnWYCA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:38:39.390444Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.5376","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e68e818c0190c138ec3c5e4dc49d659fa34fc9bd71ce99ee70bbce602e68901","sha256:b41054839eabab12d807835ad06c29df2b5dae75ca7aecb394003bd0aeb62770"],"state_sha256":"d04c49fde04a7906913605634516391f7f0e2786ce6b24e7b742b12f092c530d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VHKmicJzEqkVS98d4QgpxuDJYER3f3ZrGayeG2IAp4vmD/aCwrDgrTnvzVKvuEeds+MZLCJoMIEyY1gvW+93BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-08T14:00:41.469430Z","bundle_sha256":"0a7843b10d3c2224c6c21302611b77c4394bc422029c09f627d416e6f42d783e"}}