{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:C5BSPGNAK5RXSK3W77HQSOXOGA","short_pith_number":"pith:C5BSPGNA","canonical_record":{"source":{"id":"2107.08524","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-18T19:33:31Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"8883f8ef3ee9a1026fe57361916fee888d360d904774b5bbb974f92e596517e0","abstract_canon_sha256":"78dfa291d7eb90263c88e439e165483c240b23f49d5c83c47be7ed27ebd99ccb"},"schema_version":"1.0"},"canonical_sha256":"17432799a05763792b76ffcf093aee302bdd5a233acd1410f89fa8a8f41029ff","source":{"kind":"arxiv","id":"2107.08524","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.08524","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"arxiv_version","alias_value":"2107.08524v1","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.08524","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"pith_short_12","alias_value":"C5BSPGNAK5RX","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"pith_short_16","alias_value":"C5BSPGNAK5RXSK3W","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"pith_short_8","alias_value":"C5BSPGNA","created_at":"2026-07-05T03:08:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:C5BSPGNAK5RXSK3W77HQSOXOGA","target":"record","payload":{"canonical_record":{"source":{"id":"2107.08524","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-18T19:33:31Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"8883f8ef3ee9a1026fe57361916fee888d360d904774b5bbb974f92e596517e0","abstract_canon_sha256":"78dfa291d7eb90263c88e439e165483c240b23f49d5c83c47be7ed27ebd99ccb"},"schema_version":"1.0"},"canonical_sha256":"17432799a05763792b76ffcf093aee302bdd5a233acd1410f89fa8a8f41029ff","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:08:36.491514Z","signature_b64":"zibb/YZrV6oVbA40CVBreFqmhODMGNjql59+IOtHc/7KAwQelY250WyjWfQONCVXOzyHUTqGD3GZQais6/mSCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17432799a05763792b76ffcf093aee302bdd5a233acd1410f89fa8a8f41029ff","last_reissued_at":"2026-07-05T03:08:36.491014Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:08:36.491014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2107.08524","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":"2026-07-05T03:08:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Lg8PpXrVhAPZi72PPbddlJtK/58gBnmV1UHd9brBNWuTl0LKIfTvXb6kz69VW9O24OZMpgG6oTzuuUW37AUWAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:18:34.885056Z"},"content_sha256":"11405caf4e45b4ed167c5bce345d4a656569fd193cad565a80be116d9ecff70e","schema_version":"1.0","event_id":"sha256:11405caf4e45b4ed167c5bce345d4a656569fd193cad565a80be116d9ecff70e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:C5BSPGNAK5RXSK3W77HQSOXOGA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A survey for variable young stars with small telescopes: IV -- Rotation Periods of YSOs in IC5070","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Alejandra Traspas Munia, Aleks Scholz, Alfred Kume, Barry Merrikin, Bringfried Stecklum, Carys Herbert, Dawid Mo\\'zdzierski, Diego Rodriguez, Dirk Froebrich, Domenico Licchelli, Efthymia Derezea, Erik Schwendeman, Esteban Fern\\'andez Ma\\~nanes, Francisco C. Sold\\'an Alfaro, Franky Dubois, Geoffrey Stone, George Fleming, Georg Piehler, Heinz-Bernd Eggenstein, Igor Kudzej, Jack J. Evitts, Jochen Eisl\\\"offel, Justyn Campbell-White, Katarzyna Kowalska, Klaas Wiersema, Krzysztof Kotysz, Lord Dover, Ludwig Logie, Marc Deldem, Mario Morales Aimar, Mark C. Price, Mark Phillips, Michael A. Heald, Niall Miller, Nick Quinn, Pavol A. Dubovsk\\'y, Przemys{\\l}aw Miko{\\l}ajczyk, Rafael Castillo Garc\\'ia, Rafael Gonzalez Farf\\'an, Roger Pickard, Sally V. Makin, Samuel J. Billington, Siegfried Vanaverbeke, Stephen Johnstone, Stephen R.L. Futcher, Steve Rau, Tarik Zegmott, Thomas Killestein, Thomas Urtly, Tim Nelson, Timothy P. Long, Tonny Vanmunster, Tony Vale","submitted_at":"2021-07-18T19:33:31Z","abstract_excerpt":"Studying rotational variability of young stars is enabling us to investigate a multitude of properties of young star-disk systems. We utilise high cadence, multi-wavelength optical time series data from the Hunting Outbursting Young Stars citizen science project to identify periodic variables in the Pelican Nebula (IC5070). A double blind study using nine different period-finding algorithms was conducted and a sample of 59 periodic variables was identified. We find that a combination of four period finding algorithms can achieve a completeness of 85% and a contamination of 30% in identifying p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.08524","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2107.08524/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:08:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IEibzmhlSPHE5k0i1YPvjT5lXytuf8ok/YdztA5Z4MJpW6Cffmh8NHp8Qdi5c7rZV50oECC/xFkI7mvIH91lAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T18:18:34.885588Z"},"content_sha256":"a38647b4b60b436d49626b4cdea578eb1f466cca7d9869f7fad0e540f60711a9","schema_version":"1.0","event_id":"sha256:a38647b4b60b436d49626b4cdea578eb1f466cca7d9869f7fad0e540f60711a9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C5BSPGNAK5RXSK3W77HQSOXOGA/bundle.json","state_url":"https://pith.science/pith/C5BSPGNAK5RXSK3W77HQSOXOGA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C5BSPGNAK5RXSK3W77HQSOXOGA/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":"2026-08-06T18:18:34Z","links":{"resolver":"https://pith.science/pith/C5BSPGNAK5RXSK3W77HQSOXOGA","bundle":"https://pith.science/pith/C5BSPGNAK5RXSK3W77HQSOXOGA/bundle.json","state":"https://pith.science/pith/C5BSPGNAK5RXSK3W77HQSOXOGA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C5BSPGNAK5RXSK3W77HQSOXOGA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:C5BSPGNAK5RXSK3W77HQSOXOGA","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":"78dfa291d7eb90263c88e439e165483c240b23f49d5c83c47be7ed27ebd99ccb","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-18T19:33:31Z","title_canon_sha256":"8883f8ef3ee9a1026fe57361916fee888d360d904774b5bbb974f92e596517e0"},"schema_version":"1.0","source":{"id":"2107.08524","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2107.08524","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"arxiv_version","alias_value":"2107.08524v1","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2107.08524","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"pith_short_12","alias_value":"C5BSPGNAK5RX","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"pith_short_16","alias_value":"C5BSPGNAK5RXSK3W","created_at":"2026-07-05T03:08:36Z"},{"alias_kind":"pith_short_8","alias_value":"C5BSPGNA","created_at":"2026-07-05T03:08:36Z"}],"graph_snapshots":[{"event_id":"sha256:a38647b4b60b436d49626b4cdea578eb1f466cca7d9869f7fad0e540f60711a9","target":"graph","created_at":"2026-07-05T03:08:36Z","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/2107.08524/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Studying rotational variability of young stars is enabling us to investigate a multitude of properties of young star-disk systems. We utilise high cadence, multi-wavelength optical time series data from the Hunting Outbursting Young Stars citizen science project to identify periodic variables in the Pelican Nebula (IC5070). A double blind study using nine different period-finding algorithms was conducted and a sample of 59 periodic variables was identified. We find that a combination of four period finding algorithms can achieve a completeness of 85% and a contamination of 30% in identifying p","authors_text":"Alejandra Traspas Munia, Aleks Scholz, Alfred Kume, Barry Merrikin, Bringfried Stecklum, Carys Herbert, Dawid Mo\\'zdzierski, Diego Rodriguez, Dirk Froebrich, Domenico Licchelli, Efthymia Derezea, Erik Schwendeman, Esteban Fern\\'andez Ma\\~nanes, Francisco C. Sold\\'an Alfaro, Franky Dubois, Geoffrey Stone, George Fleming, Georg Piehler, Heinz-Bernd Eggenstein, Igor Kudzej, Jack J. Evitts, Jochen Eisl\\\"offel, Justyn Campbell-White, Katarzyna Kowalska, Klaas Wiersema, Krzysztof Kotysz, Lord Dover, Ludwig Logie, Marc Deldem, Mario Morales Aimar, Mark C. Price, Mark Phillips, Michael A. Heald, Niall Miller, Nick Quinn, Pavol A. Dubovsk\\'y, Przemys{\\l}aw Miko{\\l}ajczyk, Rafael Castillo Garc\\'ia, Rafael Gonzalez Farf\\'an, Roger Pickard, Sally V. Makin, Samuel J. Billington, Siegfried Vanaverbeke, Stephen Johnstone, Stephen R.L. Futcher, Steve Rau, Tarik Zegmott, Thomas Killestein, Thomas Urtly, Tim Nelson, Timothy P. Long, Tonny Vanmunster, Tony Vale","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-18T19:33:31Z","title":"A survey for variable young stars with small telescopes: IV -- Rotation Periods of YSOs in IC5070"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2107.08524","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":"sha256:11405caf4e45b4ed167c5bce345d4a656569fd193cad565a80be116d9ecff70e","target":"record","created_at":"2026-07-05T03:08:36Z","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":"78dfa291d7eb90263c88e439e165483c240b23f49d5c83c47be7ed27ebd99ccb","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2021-07-18T19:33:31Z","title_canon_sha256":"8883f8ef3ee9a1026fe57361916fee888d360d904774b5bbb974f92e596517e0"},"schema_version":"1.0","source":{"id":"2107.08524","kind":"arxiv","version":1}},"canonical_sha256":"17432799a05763792b76ffcf093aee302bdd5a233acd1410f89fa8a8f41029ff","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17432799a05763792b76ffcf093aee302bdd5a233acd1410f89fa8a8f41029ff","first_computed_at":"2026-07-05T03:08:36.491014Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:08:36.491014Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zibb/YZrV6oVbA40CVBreFqmhODMGNjql59+IOtHc/7KAwQelY250WyjWfQONCVXOzyHUTqGD3GZQais6/mSCw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:08:36.491514Z","signed_message":"canonical_sha256_bytes"},"source_id":"2107.08524","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11405caf4e45b4ed167c5bce345d4a656569fd193cad565a80be116d9ecff70e","sha256:a38647b4b60b436d49626b4cdea578eb1f466cca7d9869f7fad0e540f60711a9"],"state_sha256":"731a70304881a75033135a7028e5bdf4cd32df64b5c9cc53b693dc4068a8395d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KAmT5PcTWKjH0hqcMEzGtVHRuX2GYR1NL9Nv5+JFs1OKB2yFs9JtvgOzf7W8Gj6zo6oJ8TZxybTxCJbtq1vcAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T18:18:34.895237Z","bundle_sha256":"005fb7cefdf78a7caaee92fec1325f658cf9a8c2caad7f0a80f45911471b5726"}}