{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:P5QJIJMF6XKUOVKDMUVGP65TM3","short_pith_number":"pith:P5QJIJMF","canonical_record":{"source":{"id":"2012.12392","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-22T22:30:43Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"title_canon_sha256":"9a3bb552d64aa56aa37c3c57bde242266a3d93a7375d44aa8ecdb42a6b76b81e","abstract_canon_sha256":"502ec652048fd485d87f40e0d8e6de1ff09cb8018da4c773a1d9df955893bd6b"},"schema_version":"1.0"},"canonical_sha256":"7f60942585f5d5475543652a67fbb366e016ec1210af18df3ee57e64bbf1c940","source":{"kind":"arxiv","id":"2012.12392","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.12392","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"arxiv_version","alias_value":"2012.12392v1","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.12392","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"pith_short_12","alias_value":"P5QJIJMF6XKU","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"pith_short_16","alias_value":"P5QJIJMF6XKUOVKD","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"pith_short_8","alias_value":"P5QJIJMF","created_at":"2026-07-05T02:01:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:P5QJIJMF6XKUOVKDMUVGP65TM3","target":"record","payload":{"canonical_record":{"source":{"id":"2012.12392","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-22T22:30:43Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"title_canon_sha256":"9a3bb552d64aa56aa37c3c57bde242266a3d93a7375d44aa8ecdb42a6b76b81e","abstract_canon_sha256":"502ec652048fd485d87f40e0d8e6de1ff09cb8018da4c773a1d9df955893bd6b"},"schema_version":"1.0"},"canonical_sha256":"7f60942585f5d5475543652a67fbb366e016ec1210af18df3ee57e64bbf1c940","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:01:35.208737Z","signature_b64":"BvuPtqAq+lLXHRld4JUvPvhlkB0MeypF6fHkQuE46lLwGmp72JZvsbBXJZ31Zph4pbhDR9e2uuT35AlmqWzADA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7f60942585f5d5475543652a67fbb366e016ec1210af18df3ee57e64bbf1c940","last_reissued_at":"2026-07-05T02:01:35.208294Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:01:35.208294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2012.12392","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":"2026-07-05T02:01:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NoZks/RCUD3c07tKelvCf4hFTPKS6lhAVW9UKGAKR45xZI56A8GFzpZxscgZGNro/tw4EFH1ubyIEsA0Na8TDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T13:51:52.498698Z"},"content_sha256":"2b879ab5f0dda579c838832125fa38dc293d5f5b0b61d73d8b3c75bfb788fe99","schema_version":"1.0","event_id":"sha256:2b879ab5f0dda579c838832125fa38dc293d5f5b0b61d73d8b3c75bfb788fe99"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:P5QJIJMF6XKUOVKDMUVGP65TM3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Results of the Photometric LSST Astronomical Time-series Classification Challenge (PLAsTiCC)","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE"],"primary_cat":"astro-ph.IM","authors_text":"A. A. Mahabal, A. Bahmanyar, A. I. Malz, C.M. Peters, C.N. Setzer (for the LSST Dark Energy Science Collaboration, D. Muthukrishna, D. O. Jones, E. E. O. Ishida, for the LSST Transient, G. Narayan, H.V. Peiris, J. D. McEwen, J. R. Mart\\'inez-Galarza, K. A. Ponder, K. S. Mandel, L. Galbany, M. Dai, M. Lochner, R. Biswas, R. Hlo\\v{z}ek, R. Kessler, S. W. Jha, T. Allam Jr, Variable Stars Collaboration)","submitted_at":"2020-12-22T22:30:43Z","abstract_excerpt":"Next-generation surveys like the Legacy Survey of Space and Time (LSST) on the Vera C. Rubin Observatory will generate orders of magnitude more discoveries of transients and variable stars than previous surveys. To prepare for this data deluge, we developed the Photometric LSST Astronomical Time-series Classification Challenge (PLAsTiCC), a competition which aimed to catalyze the development of robust classifiers under LSST-like conditions of a non-representative training set for a large photometric test set of imbalanced classes. Over 1,000 teams participated in PLAsTiCC, which was hosted in "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.12392","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/2012.12392/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":"2026-07-05T02:01:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cVtQsPnL0RH87oBznUHg88F9sgftpCRnQCBedAvhPooBhYd0KzaeRCH3Zl30h8QJ5NYWR21rn6tmIO/V93LMCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-17T13:51:52.499090Z"},"content_sha256":"7a161b468fbc8a43a0c0b5b48a981bb8ec11688d082517c2df6c387b15ac6396","schema_version":"1.0","event_id":"sha256:7a161b468fbc8a43a0c0b5b48a981bb8ec11688d082517c2df6c387b15ac6396"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/P5QJIJMF6XKUOVKDMUVGP65TM3/bundle.json","state_url":"https://pith.science/pith/P5QJIJMF6XKUOVKDMUVGP65TM3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/P5QJIJMF6XKUOVKDMUVGP65TM3/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":"2026-07-17T13:51:52Z","links":{"resolver":"https://pith.science/pith/P5QJIJMF6XKUOVKDMUVGP65TM3","bundle":"https://pith.science/pith/P5QJIJMF6XKUOVKDMUVGP65TM3/bundle.json","state":"https://pith.science/pith/P5QJIJMF6XKUOVKDMUVGP65TM3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/P5QJIJMF6XKUOVKDMUVGP65TM3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:P5QJIJMF6XKUOVKDMUVGP65TM3","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":"502ec652048fd485d87f40e0d8e6de1ff09cb8018da4c773a1d9df955893bd6b","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-22T22:30:43Z","title_canon_sha256":"9a3bb552d64aa56aa37c3c57bde242266a3d93a7375d44aa8ecdb42a6b76b81e"},"schema_version":"1.0","source":{"id":"2012.12392","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2012.12392","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"arxiv_version","alias_value":"2012.12392v1","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2012.12392","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"pith_short_12","alias_value":"P5QJIJMF6XKU","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"pith_short_16","alias_value":"P5QJIJMF6XKUOVKD","created_at":"2026-07-05T02:01:35Z"},{"alias_kind":"pith_short_8","alias_value":"P5QJIJMF","created_at":"2026-07-05T02:01:35Z"}],"graph_snapshots":[{"event_id":"sha256:7a161b468fbc8a43a0c0b5b48a981bb8ec11688d082517c2df6c387b15ac6396","target":"graph","created_at":"2026-07-05T02:01:35Z","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/2012.12392/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Next-generation surveys like the Legacy Survey of Space and Time (LSST) on the Vera C. Rubin Observatory will generate orders of magnitude more discoveries of transients and variable stars than previous surveys. To prepare for this data deluge, we developed the Photometric LSST Astronomical Time-series Classification Challenge (PLAsTiCC), a competition which aimed to catalyze the development of robust classifiers under LSST-like conditions of a non-representative training set for a large photometric test set of imbalanced classes. Over 1,000 teams participated in PLAsTiCC, which was hosted in ","authors_text":"A. A. Mahabal, A. Bahmanyar, A. I. Malz, C.M. Peters, C.N. Setzer (for the LSST Dark Energy Science Collaboration, D. Muthukrishna, D. O. Jones, E. E. O. Ishida, for the LSST Transient, G. Narayan, H.V. Peiris, J. D. McEwen, J. R. Mart\\'inez-Galarza, K. A. Ponder, K. S. Mandel, L. Galbany, M. Dai, M. Lochner, R. Biswas, R. Hlo\\v{z}ek, R. Kessler, S. W. Jha, T. Allam Jr, Variable Stars Collaboration)","cross_cats":["astro-ph.CO","astro-ph.HE"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-22T22:30:43Z","title":"Results of the Photometric LSST Astronomical Time-series Classification Challenge (PLAsTiCC)"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2012.12392","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":"sha256:2b879ab5f0dda579c838832125fa38dc293d5f5b0b61d73d8b3c75bfb788fe99","target":"record","created_at":"2026-07-05T02:01:35Z","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":"502ec652048fd485d87f40e0d8e6de1ff09cb8018da4c773a1d9df955893bd6b","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2020-12-22T22:30:43Z","title_canon_sha256":"9a3bb552d64aa56aa37c3c57bde242266a3d93a7375d44aa8ecdb42a6b76b81e"},"schema_version":"1.0","source":{"id":"2012.12392","kind":"arxiv","version":1}},"canonical_sha256":"7f60942585f5d5475543652a67fbb366e016ec1210af18df3ee57e64bbf1c940","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7f60942585f5d5475543652a67fbb366e016ec1210af18df3ee57e64bbf1c940","first_computed_at":"2026-07-05T02:01:35.208294Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:01:35.208294Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BvuPtqAq+lLXHRld4JUvPvhlkB0MeypF6fHkQuE46lLwGmp72JZvsbBXJZ31Zph4pbhDR9e2uuT35AlmqWzADA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:01:35.208737Z","signed_message":"canonical_sha256_bytes"},"source_id":"2012.12392","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2b879ab5f0dda579c838832125fa38dc293d5f5b0b61d73d8b3c75bfb788fe99","sha256:7a161b468fbc8a43a0c0b5b48a981bb8ec11688d082517c2df6c387b15ac6396"],"state_sha256":"05454427cf7970c0fb83aef261a49570cbe1090ea25cc3fb323c70b5475633a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5uAXE7yZG/YE3eJtYykG1SRLNaHq5+0g0E3SRX+sH8SGVMwopf6QWO4fsH7FdjsM7vDxemaxUAoIjvpJ/maCAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-17T13:51:52.501995Z","bundle_sha256":"3d9f37a0b6cf675d8140aac10268ac4be6f032f196e28ebef857de524e6e944f"}}