{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:SRKYKGQVUYE5GESLZAW7DBJDYM","short_pith_number":"pith:SRKYKGQV","canonical_record":{"source":{"id":"2112.10280","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-19T23:17:53Z","cross_cats_sorted":[],"title_canon_sha256":"3f5836ec04ed1add799eab7acdbd2e751f8accf04e798d8a54bad7ca3b668a03","abstract_canon_sha256":"48498c3c0a6bddbf788b2e60168a084a985784845a135f3efb26bd4599d7be5f"},"schema_version":"1.0"},"canonical_sha256":"9455851a15a609d3124bc82df18523c3221b28b5da00dd2ee41d0aecae8ae8f4","source":{"kind":"arxiv","id":"2112.10280","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.10280","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"arxiv_version","alias_value":"2112.10280v1","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.10280","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"pith_short_12","alias_value":"SRKYKGQVUYE5","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"pith_short_16","alias_value":"SRKYKGQVUYE5GESL","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"pith_short_8","alias_value":"SRKYKGQV","created_at":"2026-07-05T04:47:10Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:SRKYKGQVUYE5GESLZAW7DBJDYM","target":"record","payload":{"canonical_record":{"source":{"id":"2112.10280","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-19T23:17:53Z","cross_cats_sorted":[],"title_canon_sha256":"3f5836ec04ed1add799eab7acdbd2e751f8accf04e798d8a54bad7ca3b668a03","abstract_canon_sha256":"48498c3c0a6bddbf788b2e60168a084a985784845a135f3efb26bd4599d7be5f"},"schema_version":"1.0"},"canonical_sha256":"9455851a15a609d3124bc82df18523c3221b28b5da00dd2ee41d0aecae8ae8f4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:47:10.466280Z","signature_b64":"X4IA/+xGsjQbQecNgBM3RZVk5uOXyBL/LbYi9jDZ9Wd4NzWFxPbPpbDSMfu4SHrqgpaewPcDSp4xXxvUNnreDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9455851a15a609d3124bc82df18523c3221b28b5da00dd2ee41d0aecae8ae8f4","last_reissued_at":"2026-07-05T04:47:10.465791Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:47:10.465791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.10280","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":"2026-07-05T04:47:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tftyZMN7hWHeuGUef88L3SZERIloZf4IxxcO+spwbmMDd2c1JjLb6yu6HKH806vnXQ81wqjZVetAf8d+0LWzDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T09:06:29.801732Z"},"content_sha256":"1638b0d92c9355f7528a71f73b0d3451ecf9d257b5e1270bf104e8d6278d7b66","schema_version":"1.0","event_id":"sha256:1638b0d92c9355f7528a71f73b0d3451ecf9d257b5e1270bf104e8d6278d7b66"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:SRKYKGQVUYE5GESLZAW7DBJDYM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"O'TRAIN: a robust and flexible Real/Bogus classifier for the study of the optical transient sky","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"A. Klotz, D. A. Kann, D. Corre, D. Turpin, K. Makhlouf, S. Karpov","submitted_at":"2021-12-19T23:17:53Z","abstract_excerpt":"The scientific interest in studying high-energy transient phenomena in the Universe has largely grown for the last decade. Now, multiple ground-based survey projects have emerged to continuously monitor the optical (and multi-messenger) transient sky at higher image cadences and cover always larger portions of the sky every night. These novel approaches lead to a huge increase of the global alert rates which need to be handled with care especially by keeping the false alarms as low as possible. Therefore, the standard transient detection pipelines previously designed for narrow field of view i"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.10280","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/2112.10280/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":"2026-07-05T04:47:10Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7atxfMjJCMQ/E47n+Fapa+ek6mu+n7e0RzY+DNeEAJchLvaO+VAaM1bcKYvPEaUG+WuG1btp/gm6vDc+i+4SAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T09:06:29.802276Z"},"content_sha256":"8e6a2b71a601651a130d404b14ca3fde96d05c08f17a17446fab27d9366f2a69","schema_version":"1.0","event_id":"sha256:8e6a2b71a601651a130d404b14ca3fde96d05c08f17a17446fab27d9366f2a69"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SRKYKGQVUYE5GESLZAW7DBJDYM/bundle.json","state_url":"https://pith.science/pith/SRKYKGQVUYE5GESLZAW7DBJDYM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SRKYKGQVUYE5GESLZAW7DBJDYM/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":"2026-08-13T09:06:29Z","links":{"resolver":"https://pith.science/pith/SRKYKGQVUYE5GESLZAW7DBJDYM","bundle":"https://pith.science/pith/SRKYKGQVUYE5GESLZAW7DBJDYM/bundle.json","state":"https://pith.science/pith/SRKYKGQVUYE5GESLZAW7DBJDYM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SRKYKGQVUYE5GESLZAW7DBJDYM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:SRKYKGQVUYE5GESLZAW7DBJDYM","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":"48498c3c0a6bddbf788b2e60168a084a985784845a135f3efb26bd4599d7be5f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-19T23:17:53Z","title_canon_sha256":"3f5836ec04ed1add799eab7acdbd2e751f8accf04e798d8a54bad7ca3b668a03"},"schema_version":"1.0","source":{"id":"2112.10280","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.10280","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"arxiv_version","alias_value":"2112.10280v1","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.10280","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"pith_short_12","alias_value":"SRKYKGQVUYE5","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"pith_short_16","alias_value":"SRKYKGQVUYE5GESL","created_at":"2026-07-05T04:47:10Z"},{"alias_kind":"pith_short_8","alias_value":"SRKYKGQV","created_at":"2026-07-05T04:47:10Z"}],"graph_snapshots":[{"event_id":"sha256:8e6a2b71a601651a130d404b14ca3fde96d05c08f17a17446fab27d9366f2a69","target":"graph","created_at":"2026-07-05T04:47:10Z","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/2112.10280/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The scientific interest in studying high-energy transient phenomena in the Universe has largely grown for the last decade. Now, multiple ground-based survey projects have emerged to continuously monitor the optical (and multi-messenger) transient sky at higher image cadences and cover always larger portions of the sky every night. These novel approaches lead to a huge increase of the global alert rates which need to be handled with care especially by keeping the false alarms as low as possible. Therefore, the standard transient detection pipelines previously designed for narrow field of view i","authors_text":"A. Klotz, D. A. Kann, D. Corre, D. Turpin, K. Makhlouf, S. Karpov","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-19T23:17:53Z","title":"O'TRAIN: a robust and flexible Real/Bogus classifier for the study of the optical transient sky"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.10280","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":"sha256:1638b0d92c9355f7528a71f73b0d3451ecf9d257b5e1270bf104e8d6278d7b66","target":"record","created_at":"2026-07-05T04:47:10Z","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":"48498c3c0a6bddbf788b2e60168a084a985784845a135f3efb26bd4599d7be5f","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2021-12-19T23:17:53Z","title_canon_sha256":"3f5836ec04ed1add799eab7acdbd2e751f8accf04e798d8a54bad7ca3b668a03"},"schema_version":"1.0","source":{"id":"2112.10280","kind":"arxiv","version":1}},"canonical_sha256":"9455851a15a609d3124bc82df18523c3221b28b5da00dd2ee41d0aecae8ae8f4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9455851a15a609d3124bc82df18523c3221b28b5da00dd2ee41d0aecae8ae8f4","first_computed_at":"2026-07-05T04:47:10.465791Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:47:10.465791Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X4IA/+xGsjQbQecNgBM3RZVk5uOXyBL/LbYi9jDZ9Wd4NzWFxPbPpbDSMfu4SHrqgpaewPcDSp4xXxvUNnreDw==","signature_status":"signed_v1","signed_at":"2026-07-05T04:47:10.466280Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.10280","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1638b0d92c9355f7528a71f73b0d3451ecf9d257b5e1270bf104e8d6278d7b66","sha256:8e6a2b71a601651a130d404b14ca3fde96d05c08f17a17446fab27d9366f2a69"],"state_sha256":"49d30acb12347ac9713bd464d96c64b1102bccaf7b7e9f4b418de94bc2009a15"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i/PmHEUG1bUQFBie7rnE/5pUeS+MYDop3A2J/xW9wTxVai7efa/hOCS39AvY8AUoy+ACheXa1YE6+Lv5Dl+TAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T09:06:29.807156Z","bundle_sha256":"1879945ac379fb696debf6a1ed3c5c386c601213c89c6cae6d41fd0fb94f82ec"}}