{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:YZ4LP2TL5KKBK6W3IMDXXH6IJW","short_pith_number":"pith:YZ4LP2TL","schema_version":"1.0","canonical_sha256":"c678b7ea6bea94157adb43077b9fc84d95a0594d10836bb52550a67751d35c59","source":{"kind":"arxiv","id":"1903.02573","version":2},"attestation_state":"computed","paper":{"title":"WASP-4b Arrived Early for the TESS Mission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Ana Glidden, B. Wohler, C. Baxter, D. W. Latham, F. Dai, G. R. Ricker, J. D. Twicken, J. E. Rodriguez, J.-M. D\\'esert, J. M. Jenkins, J. N. Winn, J. Villasenor, K. Col\\'on, K. G. Stassun, L. G. Bouma, M. Fausnaugh, M. L. Hill, N. Guerrero, R. Vanderspek, S. R. Kane, S. Seager, T. Daylan, W. Bhatti, Z. Berta-Thompson","submitted_at":"2019-03-06T19:00:09Z","abstract_excerpt":"The Transiting Exoplanet Survey Satellite (TESS) recently observed 18 transits of the hot Jupiter WASP-4b. The sequence of transits occurred 81.6 $\\pm$ 11.7 seconds earlier than had been predicted, based on data stretching back to 2007. This is unlikely to be the result of a clock error, because TESS observations of other hot Jupiters (WASP-6b, 18b, and 46b) are compatible with a constant period, ruling out an 81.6-second offset at the 6.4$\\sigma$ level. The 1.3-day orbital period of WASP-4b appears to be decreasing at a rate of $\\dot{P} = -12.6 \\pm 1.2$ milliseconds per year. The apparent per"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1903.02573","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-06T19:00:09Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"35c5e59f8bf2251be3931a59e62eb5ee7b28368533bac74d422d9dee0b8d9431","abstract_canon_sha256":"73fe1b3c5dd2c220cf16aef35760063442e150da244ecb24c2ff0c995ee527e3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:46:03.341469Z","signature_b64":"MoV+b/V6GMT29XZYDTN/KeriXNW4raduEuGmIWHqZ7gmzSgFNpF/LV6KkLn19W2E0WhAIqf6hHpd6ErOQf2mBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c678b7ea6bea94157adb43077b9fc84d95a0594d10836bb52550a67751d35c59","last_reissued_at":"2026-05-17T23:46:03.340817Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:46:03.340817Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"WASP-4b Arrived Early for the TESS Mission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Ana Glidden, B. Wohler, C. Baxter, D. W. Latham, F. Dai, G. R. Ricker, J. D. Twicken, J. E. Rodriguez, J.-M. D\\'esert, J. M. Jenkins, J. N. Winn, J. Villasenor, K. Col\\'on, K. G. Stassun, L. G. Bouma, M. Fausnaugh, M. L. Hill, N. Guerrero, R. Vanderspek, S. R. Kane, S. Seager, T. Daylan, W. Bhatti, Z. Berta-Thompson","submitted_at":"2019-03-06T19:00:09Z","abstract_excerpt":"The Transiting Exoplanet Survey Satellite (TESS) recently observed 18 transits of the hot Jupiter WASP-4b. The sequence of transits occurred 81.6 $\\pm$ 11.7 seconds earlier than had been predicted, based on data stretching back to 2007. This is unlikely to be the result of a clock error, because TESS observations of other hot Jupiters (WASP-6b, 18b, and 46b) are compatible with a constant period, ruling out an 81.6-second offset at the 6.4$\\sigma$ level. The 1.3-day orbital period of WASP-4b appears to be decreasing at a rate of $\\dot{P} = -12.6 \\pm 1.2$ milliseconds per year. The apparent per"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.02573","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":""},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1903.02573","created_at":"2026-05-17T23:46:03.340912+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.02573v2","created_at":"2026-05-17T23:46:03.340912+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.02573","created_at":"2026-05-17T23:46:03.340912+00:00"},{"alias_kind":"pith_short_12","alias_value":"YZ4LP2TL5KKB","created_at":"2026-05-18T12:33:33.725879+00:00"},{"alias_kind":"pith_short_16","alias_value":"YZ4LP2TL5KKBK6W3","created_at":"2026-05-18T12:33:33.725879+00:00"},{"alias_kind":"pith_short_8","alias_value":"YZ4LP2TL","created_at":"2026-05-18T12:33:33.725879+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW","json":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW.json","graph_json":"https://pith.science/api/pith-number/YZ4LP2TL5KKBK6W3IMDXXH6IJW/graph.json","events_json":"https://pith.science/api/pith-number/YZ4LP2TL5KKBK6W3IMDXXH6IJW/events.json","paper":"https://pith.science/paper/YZ4LP2TL"},"agent_actions":{"view_html":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW","download_json":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW.json","view_paper":"https://pith.science/paper/YZ4LP2TL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.02573&json=true","fetch_graph":"https://pith.science/api/pith-number/YZ4LP2TL5KKBK6W3IMDXXH6IJW/graph.json","fetch_events":"https://pith.science/api/pith-number/YZ4LP2TL5KKBK6W3IMDXXH6IJW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW/action/storage_attestation","attest_author":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW/action/author_attestation","sign_citation":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW/action/citation_signature","submit_replication":"https://pith.science/pith/YZ4LP2TL5KKBK6W3IMDXXH6IJW/action/replication_record"}},"created_at":"2026-05-17T23:46:03.340912+00:00","updated_at":"2026-05-17T23:46:03.340912+00:00"}