{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:TV2PXMSTIMAIWLY4JWNEPYM7LD","short_pith_number":"pith:TV2PXMST","canonical_record":{"source":{"id":"1908.01914","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-06T00:55:05Z","cross_cats_sorted":[],"title_canon_sha256":"ce71edf72f9d1dea7e0f796c7389c73ecd1b5ad52357324a1df4efe3b3716445","abstract_canon_sha256":"bf03953fb734a5d676f42756d36ee6cb3eeef1469362ffe4254693997ca19684"},"schema_version":"1.0"},"canonical_sha256":"9d74fbb25343008b2f1c4d9a47e19f58cf5a85c684e1e65e1bf02aa1f4b22446","source":{"kind":"arxiv","id":"1908.01914","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.01914","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"arxiv_version","alias_value":"1908.01914v1","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.01914","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"pith_short_12","alias_value":"TV2PXMSTIMAI","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"pith_short_16","alias_value":"TV2PXMSTIMAIWLY4","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"pith_short_8","alias_value":"TV2PXMST","created_at":"2026-07-04T23:51:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:TV2PXMSTIMAIWLY4JWNEPYM7LD","target":"record","payload":{"canonical_record":{"source":{"id":"1908.01914","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-06T00:55:05Z","cross_cats_sorted":[],"title_canon_sha256":"ce71edf72f9d1dea7e0f796c7389c73ecd1b5ad52357324a1df4efe3b3716445","abstract_canon_sha256":"bf03953fb734a5d676f42756d36ee6cb3eeef1469362ffe4254693997ca19684"},"schema_version":"1.0"},"canonical_sha256":"9d74fbb25343008b2f1c4d9a47e19f58cf5a85c684e1e65e1bf02aa1f4b22446","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:51:49.280888Z","signature_b64":"9oSgTipmp3zdEzAUs+O+ZiQ/LIDY8kBoW4qRrgmY+NEY51KXHsFxzubhIUXgd0uXwg7vhbOR960ILzdt6DiZBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d74fbb25343008b2f1c4d9a47e19f58cf5a85c684e1e65e1bf02aa1f4b22446","last_reissued_at":"2026-07-04T23:51:49.280483Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:51:49.280483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1908.01914","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":"2026-07-04T23:51:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xgXehjz/wyzBp1yYHKyr33/s1YsXoe0qEyulsfUeB4YCcSVLMBQsB3VxxfWMZQ9J8aRdPLZjkLKrWWF2pcR2Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T23:36:59.916590Z"},"content_sha256":"7627c6b4eb7d31e9f1040b7505faa43884c6cd3d95ab86277b5579b40df39195","schema_version":"1.0","event_id":"sha256:7627c6b4eb7d31e9f1040b7505faa43884c6cd3d95ab86277b5579b40df39195"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:TV2PXMSTIMAIWLY4JWNEPYM7LD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A 9-Hr CV With One Outburst in 4 Years of Kepler Data","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Andrew Mann, Andrew Vanderburg, Boris T. Gaensicke, Daniel Steeghs, Daryll LaCourse, Douglas N.C. Lin, John Thorstensen, Joshua Aiken, Lorne Nelson, Odette Toloza, Saul Rappaport, Tam\\'as Borkovits, Thomas Jacobs, Zhifei Yu","submitted_at":"2019-08-06T00:55:05Z","abstract_excerpt":"During a visual search through the Kepler main-field lightcurves, we have discovered a cataclysmic variable (CV) that experienced only a single 4-day long outburst over four years, rising to three times the quiescent flux. During the four years of non-outburst data the Kepler photometry of KIC 5608384 exhibits ellipsoidal light variations (`ELV') with a $\\sim$12% amplitude and period of 8.7 hours. Follow-up ground-based spectral observations have yielded a high-quality radial velocity curve and the associated mass function. Additionally, H$\\alpha$ emission lines were present in the spectra eve"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.01914","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/1908.01914/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":"2026-07-04T23:51:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t1ywWlDGxSZo3LdAj8zIj6SLd73uUI7I8WwvBmiu2XLmpKu0FXwst3b1XJJ+d6qCAtgdfAVWk1WRTuAm13lBAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-08T23:36:59.916965Z"},"content_sha256":"25b44bc61fa36309f41c7023622f130e975e4169671d450e48bbaf9d8fdead10","schema_version":"1.0","event_id":"sha256:25b44bc61fa36309f41c7023622f130e975e4169671d450e48bbaf9d8fdead10"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TV2PXMSTIMAIWLY4JWNEPYM7LD/bundle.json","state_url":"https://pith.science/pith/TV2PXMSTIMAIWLY4JWNEPYM7LD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TV2PXMSTIMAIWLY4JWNEPYM7LD/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":"2026-07-08T23:36:59Z","links":{"resolver":"https://pith.science/pith/TV2PXMSTIMAIWLY4JWNEPYM7LD","bundle":"https://pith.science/pith/TV2PXMSTIMAIWLY4JWNEPYM7LD/bundle.json","state":"https://pith.science/pith/TV2PXMSTIMAIWLY4JWNEPYM7LD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TV2PXMSTIMAIWLY4JWNEPYM7LD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:TV2PXMSTIMAIWLY4JWNEPYM7LD","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":"bf03953fb734a5d676f42756d36ee6cb3eeef1469362ffe4254693997ca19684","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-06T00:55:05Z","title_canon_sha256":"ce71edf72f9d1dea7e0f796c7389c73ecd1b5ad52357324a1df4efe3b3716445"},"schema_version":"1.0","source":{"id":"1908.01914","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.01914","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"arxiv_version","alias_value":"1908.01914v1","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.01914","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"pith_short_12","alias_value":"TV2PXMSTIMAI","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"pith_short_16","alias_value":"TV2PXMSTIMAIWLY4","created_at":"2026-07-04T23:51:49Z"},{"alias_kind":"pith_short_8","alias_value":"TV2PXMST","created_at":"2026-07-04T23:51:49Z"}],"graph_snapshots":[{"event_id":"sha256:25b44bc61fa36309f41c7023622f130e975e4169671d450e48bbaf9d8fdead10","target":"graph","created_at":"2026-07-04T23:51:49Z","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/1908.01914/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"During a visual search through the Kepler main-field lightcurves, we have discovered a cataclysmic variable (CV) that experienced only a single 4-day long outburst over four years, rising to three times the quiescent flux. During the four years of non-outburst data the Kepler photometry of KIC 5608384 exhibits ellipsoidal light variations (`ELV') with a $\\sim$12% amplitude and period of 8.7 hours. Follow-up ground-based spectral observations have yielded a high-quality radial velocity curve and the associated mass function. Additionally, H$\\alpha$ emission lines were present in the spectra eve","authors_text":"Andrew Mann, Andrew Vanderburg, Boris T. Gaensicke, Daniel Steeghs, Daryll LaCourse, Douglas N.C. Lin, John Thorstensen, Joshua Aiken, Lorne Nelson, Odette Toloza, Saul Rappaport, Tam\\'as Borkovits, Thomas Jacobs, Zhifei Yu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-06T00:55:05Z","title":"A 9-Hr CV With One Outburst in 4 Years of Kepler Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.01914","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":"sha256:7627c6b4eb7d31e9f1040b7505faa43884c6cd3d95ab86277b5579b40df39195","target":"record","created_at":"2026-07-04T23:51:49Z","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":"bf03953fb734a5d676f42756d36ee6cb3eeef1469362ffe4254693997ca19684","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-08-06T00:55:05Z","title_canon_sha256":"ce71edf72f9d1dea7e0f796c7389c73ecd1b5ad52357324a1df4efe3b3716445"},"schema_version":"1.0","source":{"id":"1908.01914","kind":"arxiv","version":1}},"canonical_sha256":"9d74fbb25343008b2f1c4d9a47e19f58cf5a85c684e1e65e1bf02aa1f4b22446","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9d74fbb25343008b2f1c4d9a47e19f58cf5a85c684e1e65e1bf02aa1f4b22446","first_computed_at":"2026-07-04T23:51:49.280483Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:51:49.280483Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9oSgTipmp3zdEzAUs+O+ZiQ/LIDY8kBoW4qRrgmY+NEY51KXHsFxzubhIUXgd0uXwg7vhbOR960ILzdt6DiZBQ==","signature_status":"signed_v1","signed_at":"2026-07-04T23:51:49.280888Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.01914","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:7627c6b4eb7d31e9f1040b7505faa43884c6cd3d95ab86277b5579b40df39195","sha256:25b44bc61fa36309f41c7023622f130e975e4169671d450e48bbaf9d8fdead10"],"state_sha256":"69d9c10378c6269158fbd888085b92f09c82eb831c136b7717ad5eb597b3a6ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fLa7/fez/gmMjft0ozFsYFpm8Eaa1k1bSTBGLXoLQHm07QG+IPQPZxB/QeO6M6iyKFY1cMrIwS3IMCkmlQeoBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-08T23:36:59.919374Z","bundle_sha256":"93bbc89a0118ca58f9cf8571b32cb3a8b5dbfa75891ee7dd23107a529bfc4d88"}}