{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:OZ3GUNAFIFIWMG2OKKYOMQJZSP","short_pith_number":"pith:OZ3GUNAF","canonical_record":{"source":{"id":"2312.02297","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-12-04T19:29:30Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"cc2c24288134a14d6ae1883481a6e70110460fd1f1b6cfdce78ffb76e4bc9839","abstract_canon_sha256":"c680bc647f3514570bea810bfb8669b3bb7d57ae0bf0925dd834eec976e31c2e"},"schema_version":"1.0"},"canonical_sha256":"76766a34054151661b4e52b0e6413993ff2a8dc9d43305ff5c29cb044ab47302","source":{"kind":"arxiv","id":"2312.02297","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.02297","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"arxiv_version","alias_value":"2312.02297v1","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.02297","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"pith_short_12","alias_value":"OZ3GUNAFIFIW","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"pith_short_16","alias_value":"OZ3GUNAFIFIWMG2O","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"pith_short_8","alias_value":"OZ3GUNAF","created_at":"2026-07-05T07:20:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:OZ3GUNAFIFIWMG2OKKYOMQJZSP","target":"record","payload":{"canonical_record":{"source":{"id":"2312.02297","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-12-04T19:29:30Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"cc2c24288134a14d6ae1883481a6e70110460fd1f1b6cfdce78ffb76e4bc9839","abstract_canon_sha256":"c680bc647f3514570bea810bfb8669b3bb7d57ae0bf0925dd834eec976e31c2e"},"schema_version":"1.0"},"canonical_sha256":"76766a34054151661b4e52b0e6413993ff2a8dc9d43305ff5c29cb044ab47302","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:20:15.832721Z","signature_b64":"M4DAvZg8RTp+xu8bu6BVimFyl2agddYJD9QDGslTqpgurVL+I3ghGymbpMQ1T9Snq1hhadB3WH2BNEPOedSSAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"76766a34054151661b4e52b0e6413993ff2a8dc9d43305ff5c29cb044ab47302","last_reissued_at":"2026-07-05T07:20:15.832210Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:20:15.832210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2312.02297","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":"2026-07-05T07:20:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"In7qtHHr/bMevnrXp50HlIbJ/aqp6ilC9WTUSsREunEH/L7xm0/N6nUt0+KziIRDZSLo5jIDyjzEVgAmv1P5CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:55:47.660136Z"},"content_sha256":"3c91dc70bf09ba64669399fc421c991a6e653bd309235e03b278244606ff8c7f","schema_version":"1.0","event_id":"sha256:3c91dc70bf09ba64669399fc421c991a6e653bd309235e03b278244606ff8c7f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:OZ3GUNAFIFIWMG2OKKYOMQJZSP","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Validation of elemental and isotopic abundances in late-M spectral types with the benchmark HIP 55507 AB system","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Andrew Skemer, Andrew W. Howard, Aniket Sanghi, Anne Peck, Ashley Baker, Benjamin Calvin, Ben Sappey, Caprice Phillips, Charlotte Bond, Chih-Chun Hsu, Clarissa R. Do \\'O, Daniel Echeverri, Dimitri Mawet, Emily C. Martin, Erica Gonzales, Eric L. Nielsen, Evan Morris, Fei Dai, Garreth Ruane, Geoffrey Blake, Greg Doppmann, Heather A. Knutson, Howard Isaacson, Jacklyn Pezzato, Jacques-Robert Delorme, James K. Wallace, Jason J. Wang, Jean-Baptiste Ruffio, Jerry W. Xuan, Ji Wang, Joshua Liberman, Julie Inglis, Katelyn Horstman, Luke Finnerty, Mark Phillips, Marta L. Bryan, Michael C. Liu, Michael P. Fitzgerald, Nemanja Jovanovic, Nicole L. Wallack, Peter Wizinowich, Randall Bartos, Ronald A. L\\'opez, Sam Walker, Shubh Agrawal, Simon Grimm, Sylvain Cetre, Taylor Venenciano, Tobias Schofield, Yapeng Zhang, Yinzi Xin","submitted_at":"2023-12-04T19:29:30Z","abstract_excerpt":"M dwarfs are common host stars to exoplanets but often lack atmospheric abundance measurements. Late-M dwarfs are also good analogs to the youngest substellar companions, which share similar $T_{\\rm eff}\\sim2300-2800~K$. We present atmospheric analyses for the M7.5 companion HIP 55507 B and its K6V primary star with Keck/KPIC high-resolution ($R\\sim35,000$) $K$ band spectroscopy. First, by including KPIC relative radial velocities between the primary and secondary in the orbit fit, we improve the dynamical mass precision by 60% and find $M_B=88.0_{-3.2}^{+3.4}$ $M_{\\rm Jup}$, putting HIP 55507"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.02297","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/2312.02297/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":"2026-07-05T07:20:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b9SpkkUCZL0pvYJPEsxGf5Zi5I0HzKrVwwQ9yUYbZ+OaPXJXo1JU0522ud1y8DUMTvFfRurVAAw8Fo/n9ehBBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T15:55:47.660798Z"},"content_sha256":"45ba59fe90089e125c376780a3cdccb47d32d35fe97d421b5f304bf13c0b9b95","schema_version":"1.0","event_id":"sha256:45ba59fe90089e125c376780a3cdccb47d32d35fe97d421b5f304bf13c0b9b95"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OZ3GUNAFIFIWMG2OKKYOMQJZSP/bundle.json","state_url":"https://pith.science/pith/OZ3GUNAFIFIWMG2OKKYOMQJZSP/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OZ3GUNAFIFIWMG2OKKYOMQJZSP/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":"2026-07-05T15:55:47Z","links":{"resolver":"https://pith.science/pith/OZ3GUNAFIFIWMG2OKKYOMQJZSP","bundle":"https://pith.science/pith/OZ3GUNAFIFIWMG2OKKYOMQJZSP/bundle.json","state":"https://pith.science/pith/OZ3GUNAFIFIWMG2OKKYOMQJZSP/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OZ3GUNAFIFIWMG2OKKYOMQJZSP/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:OZ3GUNAFIFIWMG2OKKYOMQJZSP","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":"c680bc647f3514570bea810bfb8669b3bb7d57ae0bf0925dd834eec976e31c2e","cross_cats_sorted":["astro-ph.EP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-12-04T19:29:30Z","title_canon_sha256":"cc2c24288134a14d6ae1883481a6e70110460fd1f1b6cfdce78ffb76e4bc9839"},"schema_version":"1.0","source":{"id":"2312.02297","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2312.02297","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"arxiv_version","alias_value":"2312.02297v1","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2312.02297","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"pith_short_12","alias_value":"OZ3GUNAFIFIW","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"pith_short_16","alias_value":"OZ3GUNAFIFIWMG2O","created_at":"2026-07-05T07:20:15Z"},{"alias_kind":"pith_short_8","alias_value":"OZ3GUNAF","created_at":"2026-07-05T07:20:15Z"}],"graph_snapshots":[{"event_id":"sha256:45ba59fe90089e125c376780a3cdccb47d32d35fe97d421b5f304bf13c0b9b95","target":"graph","created_at":"2026-07-05T07:20:15Z","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/2312.02297/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"M dwarfs are common host stars to exoplanets but often lack atmospheric abundance measurements. Late-M dwarfs are also good analogs to the youngest substellar companions, which share similar $T_{\\rm eff}\\sim2300-2800~K$. We present atmospheric analyses for the M7.5 companion HIP 55507 B and its K6V primary star with Keck/KPIC high-resolution ($R\\sim35,000$) $K$ band spectroscopy. First, by including KPIC relative radial velocities between the primary and secondary in the orbit fit, we improve the dynamical mass precision by 60% and find $M_B=88.0_{-3.2}^{+3.4}$ $M_{\\rm Jup}$, putting HIP 55507","authors_text":"Andrew Skemer, Andrew W. Howard, Aniket Sanghi, Anne Peck, Ashley Baker, Benjamin Calvin, Ben Sappey, Caprice Phillips, Charlotte Bond, Chih-Chun Hsu, Clarissa R. Do \\'O, Daniel Echeverri, Dimitri Mawet, Emily C. Martin, Erica Gonzales, Eric L. Nielsen, Evan Morris, Fei Dai, Garreth Ruane, Geoffrey Blake, Greg Doppmann, Heather A. Knutson, Howard Isaacson, Jacklyn Pezzato, Jacques-Robert Delorme, James K. Wallace, Jason J. Wang, Jean-Baptiste Ruffio, Jerry W. Xuan, Ji Wang, Joshua Liberman, Julie Inglis, Katelyn Horstman, Luke Finnerty, Mark Phillips, Marta L. Bryan, Michael C. Liu, Michael P. Fitzgerald, Nemanja Jovanovic, Nicole L. Wallack, Peter Wizinowich, Randall Bartos, Ronald A. L\\'opez, Sam Walker, Shubh Agrawal, Simon Grimm, Sylvain Cetre, Taylor Venenciano, Tobias Schofield, Yapeng Zhang, Yinzi Xin","cross_cats":["astro-ph.EP"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-12-04T19:29:30Z","title":"Validation of elemental and isotopic abundances in late-M spectral types with the benchmark HIP 55507 AB system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2312.02297","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":"sha256:3c91dc70bf09ba64669399fc421c991a6e653bd309235e03b278244606ff8c7f","target":"record","created_at":"2026-07-05T07:20:15Z","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":"c680bc647f3514570bea810bfb8669b3bb7d57ae0bf0925dd834eec976e31c2e","cross_cats_sorted":["astro-ph.EP"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-12-04T19:29:30Z","title_canon_sha256":"cc2c24288134a14d6ae1883481a6e70110460fd1f1b6cfdce78ffb76e4bc9839"},"schema_version":"1.0","source":{"id":"2312.02297","kind":"arxiv","version":1}},"canonical_sha256":"76766a34054151661b4e52b0e6413993ff2a8dc9d43305ff5c29cb044ab47302","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"76766a34054151661b4e52b0e6413993ff2a8dc9d43305ff5c29cb044ab47302","first_computed_at":"2026-07-05T07:20:15.832210Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:20:15.832210Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M4DAvZg8RTp+xu8bu6BVimFyl2agddYJD9QDGslTqpgurVL+I3ghGymbpMQ1T9Snq1hhadB3WH2BNEPOedSSAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T07:20:15.832721Z","signed_message":"canonical_sha256_bytes"},"source_id":"2312.02297","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c91dc70bf09ba64669399fc421c991a6e653bd309235e03b278244606ff8c7f","sha256:45ba59fe90089e125c376780a3cdccb47d32d35fe97d421b5f304bf13c0b9b95"],"state_sha256":"b058816ad93b81af4b99ed1c9df332bede5b50130c556eb84ea8b8ebba441173"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QAPjqKnXIIirc1/WSJVuuUqLo3AoV/LoZBIvoEvLlBVsxCNoCyxoA4BhYmKkB8ICFYPq+tgt7B1PfQdzBJSuDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T15:55:47.664646Z","bundle_sha256":"c14c603d789fa12023f0b7d1d9a8eb1b5fda70f69a243800e0e57fa301e348fa"}}