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Tinney, Chris Stockdale, Christopher J. Burke, Coel Hellier, Courtney Dressing, C. Stibbard, Dan Huber, Daniel Bayliss, David Barrado, David Ciardi, David J. Armstrong, David R. Anderson, David W. Latham, Diana Dragomir, Don Pollacco, Duncan J. Wright, E. Delgado Mena, Edward M. Bryant, E. Furlan, E. Gaidos, Elisabeth C. Matthews, Elisa V. Quintana, Erica J. Gonzales, Eric L. N. Jensen, Erik A. Petigura, Farisa Y. Morales, Fei Dai, Francois Bouchy, F. Zohrabi, George Ricker, George W. King, Howard Isaacson, Hugh P. Osborn, Hui Zhang, Ian J. M. Crossfield, Jack Okumura, Jack S. Acton, James McCormac, James S. Jenkins, Jesus Noel Villase\\~nor, John Berberian Jr., John Kielkopf, Jonathan Horner, Jon M. Jenkins, Jon Otegi, Jorge Lillo-Box, Jose I. Vines, Joseph D. Twicken, Joshua N. Winn, J. Schlieder, J. Teske, Karen A. Collins, Keivan G. Stassun, Kevin I. Collins, Lauren M. Weiss, Liam Raynard, Louise D. Nielsen, Malcolm Fridlund, Mark E. Rose, Matthew R. Burleigh, Matthew W. Mengel, Maximilian N. G\\\"unther, Michael Reefe, Michael R. Goad, M. Lund, Monika Lendl, Natalie Batalha, N\\'estor Espinoza, Nicholas J. Scott, Nicholas Law, Nuno C. Santos, Olivier D. S. Demangeon, Paula Sarkis, Paul A. Str{\\o}m, Paul Robertson, Peter J. Wheatley, Peter Plavchan, P. Figueira, Rachel A. Matson, Rafael Brahm, Ravit Helled, Richard C. Kidwell Jr., Richard G. West, Richard P. Schwarz, Robert A. Wittenmyer, Rodrigo F. D\\'iaz, Roland Vanderspek, Rosanna H. Tilbrook, Ryan Cloutier, Saeed Hojjatpanah, Samuel Gill, Sarah Ballard, Sarah L. Casewell, Sergio Hoyer, Sharon X. Wang, S. Seager, S. Sousa, Stephane Udry, Stephen R. Kane, Steve B. Howell, Susana C. C. Barros, Thiam-Guan Tan, Thomas Barclay, Thomas Henning, Vardan Adibekyan, Varoujan Gorjian, Xavier Dumusque","submitted_at":"2021-08-04T22:59:36Z","abstract_excerpt":"We present the bright (V$_{mag} = 9.12$), multi-planet system TOI-431, characterised with photometry and radial velocities. We estimate the stellar rotation period to be $30.5 \\pm 0.7$ days using archival photometry and radial velocities. TOI-431b is a super-Earth with a period of 0.49 days, a radius of 1.28 $\\pm$ 0.04 R$_{\\oplus}$, a mass of $3.07 \\pm 0.35$ M$_{\\oplus}$, and a density of $8.0 \\pm 1.0$ g cm$^{-3}$; TOI-431d is a sub-Neptune with a period of 12.46 days, a radius of $3.29 \\pm 0.09$ R$_{\\oplus}$, a mass of $9.90^{+1.53}_{-1.49}$ M$_{\\oplus}$, and a density of $1.36 \\pm 0.25$ g cm"},"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":"2108.02310","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2021-08-04T22:59:36Z","cross_cats_sorted":[],"title_canon_sha256":"36ec17587d6ba2700bf596108293577768efdeda0d7bb4bde7512341260e4a5f","abstract_canon_sha256":"bdfc51aa436faa9e27aad52dfb287f41b228288e41e27f53e8d9625ddc0c3b09"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:06:35.305825Z","signature_b64":"vJaH4JZ9OqTVq5TjaI/z+fUCgEv000wKAjXRpPfpN3ybz0l8B/O9VR2xn6pZhl7ZlSCU3iZxwahcgfyQjVHwDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c149fa9a85b097cda057e09829c618dff17563d27f54fbb177ee1e1aad10ac8d","last_reissued_at":"2026-07-05T03:06:35.305385Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:06:35.305385Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"TOI-431/HIP 26013: a super-Earth and a sub-Neptune transiting a bright, early K dwarf, with a third RV planet","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Aleisha Hogan, Alexandre Santerne, A. M. S. Smith, Andr\\'es Jord\\'an, Andrew W. Howard, Andrew W. Mann, Ares Osborn, Arpita Roy, A. Tanner, Avi Shporer, Benjamin F. Cooke, Benjamin Fulton, Beth A. Henderson, Bj\\\"orn Benneke, Brendan P. Bowler, Brett C. Addison, Bryson Cale, Carl Ziegler, C. Dorn, C\\'esar Brice\\~no, C. Geneser, C. G. Tinney, Chris Stockdale, Christopher J. Burke, Coel Hellier, Courtney Dressing, C. Stibbard, Dan Huber, Daniel Bayliss, David Barrado, David Ciardi, David J. Armstrong, David R. Anderson, David W. Latham, Diana Dragomir, Don Pollacco, Duncan J. Wright, E. Delgado Mena, Edward M. Bryant, E. Furlan, E. Gaidos, Elisabeth C. Matthews, Elisa V. Quintana, Erica J. Gonzales, Eric L. N. Jensen, Erik A. Petigura, Farisa Y. Morales, Fei Dai, Francois Bouchy, F. Zohrabi, George Ricker, George W. King, Howard Isaacson, Hugh P. Osborn, Hui Zhang, Ian J. M. Crossfield, Jack Okumura, Jack S. Acton, James McCormac, James S. Jenkins, Jesus Noel Villase\\~nor, John Berberian Jr., John Kielkopf, Jonathan Horner, Jon M. Jenkins, Jon Otegi, Jorge Lillo-Box, Jose I. Vines, Joseph D. Twicken, Joshua N. Winn, J. Schlieder, J. Teske, Karen A. Collins, Keivan G. Stassun, Kevin I. Collins, Lauren M. Weiss, Liam Raynard, Louise D. Nielsen, Malcolm Fridlund, Mark E. Rose, Matthew R. Burleigh, Matthew W. Mengel, Maximilian N. G\\\"unther, Michael Reefe, Michael R. Goad, M. Lund, Monika Lendl, Natalie Batalha, N\\'estor Espinoza, Nicholas J. Scott, Nicholas Law, Nuno C. Santos, Olivier D. S. Demangeon, Paula Sarkis, Paul A. Str{\\o}m, Paul Robertson, Peter J. Wheatley, Peter Plavchan, P. Figueira, Rachel A. Matson, Rafael Brahm, Ravit Helled, Richard C. Kidwell Jr., Richard G. West, Richard P. Schwarz, Robert A. Wittenmyer, Rodrigo F. D\\'iaz, Roland Vanderspek, Rosanna H. Tilbrook, Ryan Cloutier, Saeed Hojjatpanah, Samuel Gill, Sarah Ballard, Sarah L. Casewell, Sergio Hoyer, Sharon X. Wang, S. Seager, S. Sousa, Stephane Udry, Stephen R. Kane, Steve B. Howell, Susana C. C. Barros, Thiam-Guan Tan, Thomas Barclay, Thomas Henning, Vardan Adibekyan, Varoujan Gorjian, Xavier Dumusque","submitted_at":"2021-08-04T22:59:36Z","abstract_excerpt":"We present the bright (V$_{mag} = 9.12$), multi-planet system TOI-431, characterised with photometry and radial velocities. We estimate the stellar rotation period to be $30.5 \\pm 0.7$ days using archival photometry and radial velocities. TOI-431b is a super-Earth with a period of 0.49 days, a radius of 1.28 $\\pm$ 0.04 R$_{\\oplus}$, a mass of $3.07 \\pm 0.35$ M$_{\\oplus}$, and a density of $8.0 \\pm 1.0$ g cm$^{-3}$; TOI-431d is a sub-Neptune with a period of 12.46 days, a radius of $3.29 \\pm 0.09$ R$_{\\oplus}$, a mass of $9.90^{+1.53}_{-1.49}$ M$_{\\oplus}$, and a density of $1.36 \\pm 0.25$ g cm"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2108.02310","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/2108.02310/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2108.02310","created_at":"2026-07-05T03:06:35.305449+00:00"},{"alias_kind":"arxiv_version","alias_value":"2108.02310v1","created_at":"2026-07-05T03:06:35.305449+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2108.02310","created_at":"2026-07-05T03:06:35.305449+00:00"},{"alias_kind":"pith_short_12","alias_value":"YFE7VGUFWCL4","created_at":"2026-07-05T03:06:35.305449+00:00"},{"alias_kind":"pith_short_16","alias_value":"YFE7VGUFWCL43ICX","created_at":"2026-07-05T03:06:35.305449+00:00"},{"alias_kind":"pith_short_8","alias_value":"YFE7VGUF","created_at":"2026-07-05T03:06:35.305449+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/YFE7VGUFWCL43ICX4CMCTRQY37","json":"https://pith.science/pith/YFE7VGUFWCL43ICX4CMCTRQY37.json","graph_json":"https://pith.science/api/pith-number/YFE7VGUFWCL43ICX4CMCTRQY37/graph.json","events_json":"https://pith.science/api/pith-number/YFE7VGUFWCL43ICX4CMCTRQY37/events.json","paper":"https://pith.science/paper/YFE7VGUF"},"agent_actions":{"view_html":"https://pith.science/pith/YFE7VGUFWCL43ICX4CMCTRQY37","download_json":"https://pith.science/pith/YFE7VGUFWCL43ICX4CMCTRQY37.json","view_paper":"https://pith.science/paper/YFE7VGUF","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2108.02310&json=true","fetch_graph":"https://pith.science/api/pith-number/YFE7VGUFWCL43ICX4CMCTRQY37/graph.json","fetch_events":"https://pith.science/api/pith-number/YFE7VGUFWCL43ICX4CMCTRQY37/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/YFE7VGUFWCL43ICX4CMCTRQY37/action/timestamp_anchor","attest_storage":"https://pith.science/pith/YFE7VGUFWCL43ICX4CMCTRQY37/action/storage_attestation","attest_author":"https://pith.science/pith/YFE7VGUFWCL43ICX4CMCTRQY37/action/author_attestation","sign_citation":"https://pith.science/pith/YFE7VGUFWCL43ICX4CMCTRQY37/action/citation_signature","submit_replication":"https://pith.science/pith/YFE7VGUFWCL43ICX4CMCTRQY37/action/replication_record"}},"created_at":"2026-07-05T03:06:35.305449+00:00","updated_at":"2026-07-05T03:06:35.305449+00:00"}