{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:OBDFBHFF4UXFMY3HVWQMUHN2JE","short_pith_number":"pith:OBDFBHFF","canonical_record":{"source":{"id":"1606.02727","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-08T20:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"7159d81db2a67bf8cebd77bb47c3a5f9d6b74be3b30870d0bedcba6e3beecead","abstract_canon_sha256":"974f7efc13aa13930407660c15f5840e554f620ef7f0b97cd3f95eb570300b72"},"schema_version":"1.0"},"canonical_sha256":"7046509ca5e52e566367ada0ca1dba490280e34549c12eda22208a07cc4f4653","source":{"kind":"arxiv","id":"1606.02727","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.02727","created_at":"2026-05-18T01:11:01Z"},{"alias_kind":"arxiv_version","alias_value":"1606.02727v2","created_at":"2026-05-18T01:11:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.02727","created_at":"2026-05-18T01:11:01Z"},{"alias_kind":"pith_short_12","alias_value":"OBDFBHFF4UXF","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OBDFBHFF4UXFMY3H","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OBDFBHFF","created_at":"2026-05-18T12:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:OBDFBHFF4UXFMY3HVWQMUHN2JE","target":"record","payload":{"canonical_record":{"source":{"id":"1606.02727","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-08T20:00:10Z","cross_cats_sorted":[],"title_canon_sha256":"7159d81db2a67bf8cebd77bb47c3a5f9d6b74be3b30870d0bedcba6e3beecead","abstract_canon_sha256":"974f7efc13aa13930407660c15f5840e554f620ef7f0b97cd3f95eb570300b72"},"schema_version":"1.0"},"canonical_sha256":"7046509ca5e52e566367ada0ca1dba490280e34549c12eda22208a07cc4f4653","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:11:01.770099Z","signature_b64":"8F7IvuPYgmmOLCObv3yohuAbM7IfwWw/OD46rNCboEfA5UCnX8+JW7co5zZQJ7sjNSeBRWoDiP92X1/BXbatCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7046509ca5e52e566367ada0ca1dba490280e34549c12eda22208a07cc4f4653","last_reissued_at":"2026-05-18T01:11:01.769518Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:11:01.769518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1606.02727","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":"2026-05-18T01:11:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9rKNMWIPjJu870Ffm6JzzCnbv6yWe/qI8V9Q5h5lBkYxEHv1Rc+aY4VzNqYelN6kAYUTswUvA9lF2lYYXWaIAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:50:49.406382Z"},"content_sha256":"727f08243609bdb9c1ec97f833a64261cdf809be666f39439fecd5534a66122b","schema_version":"1.0","event_id":"sha256:727f08243609bdb9c1ec97f833a64261cdf809be666f39439fecd5534a66122b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:OBDFBHFF4UXFMY3HVWQMUHN2JE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The OGLE Collection of Variable Stars. Over 45 000 RR Lyrae Stars in the Magellanic System","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Udalski, D. Skowron, I. Soszy\\'nski, J. Skowron, K. Ulaczyk, {\\L}. Wyrzykowski, M. K. Szyma\\'nski, M. Pawlak, P. Mr\\'oz, P. Pietrukowicz, R. Poleski, S. Koz{\\l}owski","submitted_at":"2016-06-08T20:00:10Z","abstract_excerpt":"We present the largest collection of RR Lyrae stars in the Magellanic System and in its foreground. The sample consists of 45 451 RR Lyr stars, of which 39 082 were detected toward the Large Magellanic Cloud and 6369 toward the Small Magellanic Cloud. We provide long-term time-series photometric measurements collected during the fourth phase of the Optical Gravitational Lensing Experiment (OGLE-IV).\n  We discuss several potential astrophysical applications of our collection: investigation of the structure of the Magellanic Clouds and the Galactic halo, studies of the globular clusters in the M"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.02727","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":"2026-05-18T01:11:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SpC4FsRAeq9stFtsMrjfn7dQeIFZyKqYS6LodVKymXIYBUmtoVRfXtOHJPOuyzV2aawhQ4kCUIoevchiz2gxBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T03:50:49.406734Z"},"content_sha256":"fa24f2e7b5b1bd541044c8058e247a934ebe8521d30fea0ddf04311314d3a536","schema_version":"1.0","event_id":"sha256:fa24f2e7b5b1bd541044c8058e247a934ebe8521d30fea0ddf04311314d3a536"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OBDFBHFF4UXFMY3HVWQMUHN2JE/bundle.json","state_url":"https://pith.science/pith/OBDFBHFF4UXFMY3HVWQMUHN2JE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OBDFBHFF4UXFMY3HVWQMUHN2JE/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":"2026-05-30T03:50:49Z","links":{"resolver":"https://pith.science/pith/OBDFBHFF4UXFMY3HVWQMUHN2JE","bundle":"https://pith.science/pith/OBDFBHFF4UXFMY3HVWQMUHN2JE/bundle.json","state":"https://pith.science/pith/OBDFBHFF4UXFMY3HVWQMUHN2JE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OBDFBHFF4UXFMY3HVWQMUHN2JE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:OBDFBHFF4UXFMY3HVWQMUHN2JE","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":"974f7efc13aa13930407660c15f5840e554f620ef7f0b97cd3f95eb570300b72","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-08T20:00:10Z","title_canon_sha256":"7159d81db2a67bf8cebd77bb47c3a5f9d6b74be3b30870d0bedcba6e3beecead"},"schema_version":"1.0","source":{"id":"1606.02727","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1606.02727","created_at":"2026-05-18T01:11:01Z"},{"alias_kind":"arxiv_version","alias_value":"1606.02727v2","created_at":"2026-05-18T01:11:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1606.02727","created_at":"2026-05-18T01:11:01Z"},{"alias_kind":"pith_short_12","alias_value":"OBDFBHFF4UXF","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"OBDFBHFF4UXFMY3H","created_at":"2026-05-18T12:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"OBDFBHFF","created_at":"2026-05-18T12:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:fa24f2e7b5b1bd541044c8058e247a934ebe8521d30fea0ddf04311314d3a536","target":"graph","created_at":"2026-05-18T01:11:01Z","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 largest collection of RR Lyrae stars in the Magellanic System and in its foreground. The sample consists of 45 451 RR Lyr stars, of which 39 082 were detected toward the Large Magellanic Cloud and 6369 toward the Small Magellanic Cloud. We provide long-term time-series photometric measurements collected during the fourth phase of the Optical Gravitational Lensing Experiment (OGLE-IV).\n  We discuss several potential astrophysical applications of our collection: investigation of the structure of the Magellanic Clouds and the Galactic halo, studies of the globular clusters in the M","authors_text":"A. Udalski, D. Skowron, I. Soszy\\'nski, J. Skowron, K. Ulaczyk, {\\L}. Wyrzykowski, M. K. Szyma\\'nski, M. Pawlak, P. Mr\\'oz, P. Pietrukowicz, R. Poleski, S. Koz{\\l}owski","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-08T20:00:10Z","title":"The OGLE Collection of Variable Stars. Over 45 000 RR Lyrae Stars in the Magellanic System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1606.02727","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":"sha256:727f08243609bdb9c1ec97f833a64261cdf809be666f39439fecd5534a66122b","target":"record","created_at":"2026-05-18T01:11:01Z","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":"974f7efc13aa13930407660c15f5840e554f620ef7f0b97cd3f95eb570300b72","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-06-08T20:00:10Z","title_canon_sha256":"7159d81db2a67bf8cebd77bb47c3a5f9d6b74be3b30870d0bedcba6e3beecead"},"schema_version":"1.0","source":{"id":"1606.02727","kind":"arxiv","version":2}},"canonical_sha256":"7046509ca5e52e566367ada0ca1dba490280e34549c12eda22208a07cc4f4653","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7046509ca5e52e566367ada0ca1dba490280e34549c12eda22208a07cc4f4653","first_computed_at":"2026-05-18T01:11:01.769518Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:11:01.769518Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8F7IvuPYgmmOLCObv3yohuAbM7IfwWw/OD46rNCboEfA5UCnX8+JW7co5zZQJ7sjNSeBRWoDiP92X1/BXbatCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:11:01.770099Z","signed_message":"canonical_sha256_bytes"},"source_id":"1606.02727","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:727f08243609bdb9c1ec97f833a64261cdf809be666f39439fecd5534a66122b","sha256:fa24f2e7b5b1bd541044c8058e247a934ebe8521d30fea0ddf04311314d3a536"],"state_sha256":"1487ed594ab1c7ee440371a58d0108992dcdd3a463a7c3a63b7b7eb79e808874"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qlTDm6Yv6w2X2w6EwNxBXbgSo6MD5ogLgch209ysf47C3A8KfdsPdQpGzQKcGWzvu9wdc06dRT422oM1uCxqBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T03:50:49.408756Z","bundle_sha256":"6eb3e0b02b85b084aae51f65f54ee2df6053e5e096a593e8f95cfb7d293efbc2"}}