{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:VXAO4XYH2W4BEEVGZIQX45LZJ2","short_pith_number":"pith:VXAO4XYH","canonical_record":{"source":{"id":"1910.04234","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-09T20:19:30Z","cross_cats_sorted":[],"title_canon_sha256":"37365f97d321e35d2aa7fd83947bf9a73b609043616227dae02bb7c32655ab46","abstract_canon_sha256":"0f22155707614f74b37f0dba3968bfbfb9477673c4b62db8a568cba3bdc4787c"},"schema_version":"1.0"},"canonical_sha256":"adc0ee5f07d5b81212a6ca217e75794e9e28200665043002a4bb290974efd27b","source":{"kind":"arxiv","id":"1910.04234","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.04234","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"arxiv_version","alias_value":"1910.04234v2","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.04234","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"pith_short_12","alias_value":"VXAO4XYH2W4B","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"pith_short_16","alias_value":"VXAO4XYH2W4BEEVG","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"pith_short_8","alias_value":"VXAO4XYH","created_at":"2026-07-05T00:25:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:VXAO4XYH2W4BEEVGZIQX45LZJ2","target":"record","payload":{"canonical_record":{"source":{"id":"1910.04234","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-09T20:19:30Z","cross_cats_sorted":[],"title_canon_sha256":"37365f97d321e35d2aa7fd83947bf9a73b609043616227dae02bb7c32655ab46","abstract_canon_sha256":"0f22155707614f74b37f0dba3968bfbfb9477673c4b62db8a568cba3bdc4787c"},"schema_version":"1.0"},"canonical_sha256":"adc0ee5f07d5b81212a6ca217e75794e9e28200665043002a4bb290974efd27b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:25:17.624989Z","signature_b64":"aKBjvecrcleASyLgcj3fJ8v92q5Ug9tNhml4FLHfzqTD2Aan4j08MQyIGwWnNOaovY+Nyj9Wweo1gTlwR2MYAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"adc0ee5f07d5b81212a6ca217e75794e9e28200665043002a4bb290974efd27b","last_reissued_at":"2026-07-05T00:25:17.624406Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:25:17.624406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1910.04234","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":"2026-07-05T00:25:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5mOmvps3Bqs026ISreVWXuB/57ofXl+wjzgvL+QVW5604kO7HSARSTCklXKeUy+IIsQ2j3RHD0g+F88CqGwSBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T00:03:11.390391Z"},"content_sha256":"8082c03c11452d316e53787307e69c4073932e69208d33d5b5fcefb4244c94fd","schema_version":"1.0","event_id":"sha256:8082c03c11452d316e53787307e69c4073932e69208d33d5b5fcefb4244c94fd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:VXAO4XYH2W4BEEVGZIQX45LZJ2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"TESS first look at evolved compact pulsators : Discovery and asteroseismic probing of the g-mode hot B subdwarf pulsator EC 21494-7018","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Pigulski, A.S. Baran, \\`A. S\\'odor, D. Kilkenny, E.M. Green, G. Fontaine, G.R. Ricker, H. Kjeldsen, H.L. Worters, I. Pelisoli, J.H. Debes, J.H. Telting, J.J. Hermes, K.J. Bell, M. Uzundag, M. Vu\\v{c}kovi\\'c, N. Giammichele, P.A. Bradley, P. Brassard, P. Ko{\\l}aczek-Szyma\\'nski, R. Handberg, R.H. {\\O}stensen, R.K. Vanderspek, R. Silvotti, S. Charpinet, S.D. Kawaler, S. Geier, S.J. Murphy, U. Heber, V. Van Grootel, W. Zong, Zs. Bogn\\'ar","submitted_at":"2019-10-09T20:19:30Z","abstract_excerpt":"We present the discovery and asteroseismic analysis of a new g-mode hot B subdwarf (sdB) pulsator, EC 21494-7018 (TIC 278659026), monitored in TESS first sector using 120-second cadence. The light curve analysis reveals that EC 21494-7018 is a sdB pulsator counting up to 20 frequencies associated with independent g-modes. The seismic analysis singles out an optimal model solution in full agreement with independent measurements provided by spectroscopy (atmospheric parameters derived from model atmospheres) and astrometry (distance evaluated from Gaia DR2 trigonometric parallax). Several key pa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.04234","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1910.04234/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":"2026-07-05T00:25:17Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kCbJEg2yhk0JpV9y7x/YZgQLH2X5exLuIhD8Q/0LCI9Ljt2+dt5n7SPYKXpavSDWyV8pxO+LpGhICAUMnvrTDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T00:03:11.390774Z"},"content_sha256":"9f778ec44e308d9390f4947c0f4cf6eaceb8a7ca31ac2562d4c05ea10469d246","schema_version":"1.0","event_id":"sha256:9f778ec44e308d9390f4947c0f4cf6eaceb8a7ca31ac2562d4c05ea10469d246"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VXAO4XYH2W4BEEVGZIQX45LZJ2/bundle.json","state_url":"https://pith.science/pith/VXAO4XYH2W4BEEVGZIQX45LZJ2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VXAO4XYH2W4BEEVGZIQX45LZJ2/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":"2026-08-22T00:03:11Z","links":{"resolver":"https://pith.science/pith/VXAO4XYH2W4BEEVGZIQX45LZJ2","bundle":"https://pith.science/pith/VXAO4XYH2W4BEEVGZIQX45LZJ2/bundle.json","state":"https://pith.science/pith/VXAO4XYH2W4BEEVGZIQX45LZJ2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VXAO4XYH2W4BEEVGZIQX45LZJ2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VXAO4XYH2W4BEEVGZIQX45LZJ2","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":"0f22155707614f74b37f0dba3968bfbfb9477673c4b62db8a568cba3bdc4787c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-09T20:19:30Z","title_canon_sha256":"37365f97d321e35d2aa7fd83947bf9a73b609043616227dae02bb7c32655ab46"},"schema_version":"1.0","source":{"id":"1910.04234","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1910.04234","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"arxiv_version","alias_value":"1910.04234v2","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1910.04234","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"pith_short_12","alias_value":"VXAO4XYH2W4B","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"pith_short_16","alias_value":"VXAO4XYH2W4BEEVG","created_at":"2026-07-05T00:25:17Z"},{"alias_kind":"pith_short_8","alias_value":"VXAO4XYH","created_at":"2026-07-05T00:25:17Z"}],"graph_snapshots":[{"event_id":"sha256:9f778ec44e308d9390f4947c0f4cf6eaceb8a7ca31ac2562d4c05ea10469d246","target":"graph","created_at":"2026-07-05T00:25:17Z","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/1910.04234/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present the discovery and asteroseismic analysis of a new g-mode hot B subdwarf (sdB) pulsator, EC 21494-7018 (TIC 278659026), monitored in TESS first sector using 120-second cadence. The light curve analysis reveals that EC 21494-7018 is a sdB pulsator counting up to 20 frequencies associated with independent g-modes. The seismic analysis singles out an optimal model solution in full agreement with independent measurements provided by spectroscopy (atmospheric parameters derived from model atmospheres) and astrometry (distance evaluated from Gaia DR2 trigonometric parallax). Several key pa","authors_text":"A. Pigulski, A.S. Baran, \\`A. S\\'odor, D. Kilkenny, E.M. Green, G. Fontaine, G.R. Ricker, H. Kjeldsen, H.L. Worters, I. Pelisoli, J.H. Debes, J.H. Telting, J.J. Hermes, K.J. Bell, M. Uzundag, M. Vu\\v{c}kovi\\'c, N. Giammichele, P.A. Bradley, P. Brassard, P. Ko{\\l}aczek-Szyma\\'nski, R. Handberg, R.H. {\\O}stensen, R.K. Vanderspek, R. Silvotti, S. Charpinet, S.D. Kawaler, S. Geier, S.J. Murphy, U. Heber, V. Van Grootel, W. Zong, Zs. Bogn\\'ar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-09T20:19:30Z","title":"TESS first look at evolved compact pulsators : Discovery and asteroseismic probing of the g-mode hot B subdwarf pulsator EC 21494-7018"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1910.04234","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":"sha256:8082c03c11452d316e53787307e69c4073932e69208d33d5b5fcefb4244c94fd","target":"record","created_at":"2026-07-05T00:25:17Z","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":"0f22155707614f74b37f0dba3968bfbfb9477673c4b62db8a568cba3bdc4787c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-10-09T20:19:30Z","title_canon_sha256":"37365f97d321e35d2aa7fd83947bf9a73b609043616227dae02bb7c32655ab46"},"schema_version":"1.0","source":{"id":"1910.04234","kind":"arxiv","version":2}},"canonical_sha256":"adc0ee5f07d5b81212a6ca217e75794e9e28200665043002a4bb290974efd27b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"adc0ee5f07d5b81212a6ca217e75794e9e28200665043002a4bb290974efd27b","first_computed_at":"2026-07-05T00:25:17.624406Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:25:17.624406Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aKBjvecrcleASyLgcj3fJ8v92q5Ug9tNhml4FLHfzqTD2Aan4j08MQyIGwWnNOaovY+Nyj9Wweo1gTlwR2MYAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T00:25:17.624989Z","signed_message":"canonical_sha256_bytes"},"source_id":"1910.04234","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8082c03c11452d316e53787307e69c4073932e69208d33d5b5fcefb4244c94fd","sha256:9f778ec44e308d9390f4947c0f4cf6eaceb8a7ca31ac2562d4c05ea10469d246"],"state_sha256":"e6323abb30dfadc80b76c236d710c43e24c8c203e330c589fda0f078cf760085"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UeT5ECwpzUAvVOQfMv7ida3Syow7sji+vv2dSY3EMxB2U7s8q6FIuc+dvcDCiR1nEHgqc6CJ7JSOmU9kCWbeDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T00:03:11.393424Z","bundle_sha256":"284184f43b551b217713201c2ea9ece4b0c6eabff4c004663165a4038c634cb3"}}