{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:WOMXSBVOYJQQ5DDVKR4XK5AYTS","short_pith_number":"pith:WOMXSBVO","canonical_record":{"source":{"id":"1903.00174","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-01T06:31:41Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e33a1644da38afe401491139682c1d0d7478631631439fc34d0fc3972493003c","abstract_canon_sha256":"1a0d3ab979de6388c42526b3a234d1511ef54881524fc8a6f70d49155473859f"},"schema_version":"1.0"},"canonical_sha256":"b3997906aec2610e8c7554797574189c81c2452db0f9a7f3e253dddad21b404f","source":{"kind":"arxiv","id":"1903.00174","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.00174","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"arxiv_version","alias_value":"1903.00174v1","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.00174","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"pith_short_12","alias_value":"WOMXSBVOYJQQ","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"WOMXSBVOYJQQ5DDV","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"WOMXSBVO","created_at":"2026-05-18T12:33:30Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:WOMXSBVOYJQQ5DDVKR4XK5AYTS","target":"record","payload":{"canonical_record":{"source":{"id":"1903.00174","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-01T06:31:41Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"e33a1644da38afe401491139682c1d0d7478631631439fc34d0fc3972493003c","abstract_canon_sha256":"1a0d3ab979de6388c42526b3a234d1511ef54881524fc8a6f70d49155473859f"},"schema_version":"1.0"},"canonical_sha256":"b3997906aec2610e8c7554797574189c81c2452db0f9a7f3e253dddad21b404f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:30.190554Z","signature_b64":"HSHkyWN0YDDtanNEfQ9mYZ4l+LDbiy8hPvBHKu6pt5KtMHQVLBvVU0fy8yj6Dp2XYXAlu4lWYZjPeWtMKYQ1Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b3997906aec2610e8c7554797574189c81c2452db0f9a7f3e253dddad21b404f","last_reissued_at":"2026-05-17T23:48:30.189871Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:30.189871Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1903.00174","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":"2026-05-17T23:48:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"28D8LMMPNimoQkikdPYwEKRarxxb7tTqbcwsKt8uhHPvm08g6OtR2FPRO1ngEOCDNwTF2BYS+CQI7Ox9mhRBCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:25:24.824973Z"},"content_sha256":"67a3e88e9f7a11435e024a9cadb535fc331a460a317ff13aa75aac1526f6aaa2","schema_version":"1.0","event_id":"sha256:67a3e88e9f7a11435e024a9cadb535fc331a460a317ff13aa75aac1526f6aaa2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:WOMXSBVOYJQQ5DDVKR4XK5AYTS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Spectroscopic Analysis of the California-Kepler Survey Sample: I. Stellar Parameters, Planetary Radii and a Slope in the Radius Gap","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"Cintia F. Martinez, Katia Cunha, Luan Ghezzi, Verne V. Smith","submitted_at":"2019-03-01T06:31:41Z","abstract_excerpt":"We present results from a quantitative spectroscopic analysis conducted on archival Keck/HIRES high-resolution spectra from the California-$Kepler$ Survey (CKS) sample of transiting planetary host stars identified from the $Kepler$ mission. The spectroscopic analysis was based on a carefully selected set of Fe I and Fe II lines, resulting in precise values for the stellar parameters of effective temperature (T$_{\\rm eff}$) and surface gravity (log $g$). Combining the stellar parameters with $Gaia$ DR2 parallaxes and precise distances, we derived both stellar and planetary radii for our sample,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.00174","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":""},"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":"2026-05-17T23:48:30Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A0PKbHMdYyo+3yF92+glleYhaOdOKRxXHbb9vvxVXuVlejjYQBdeYPIs2herSxb/EOmAV5/Nh5ciVyWduUlCDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T03:25:24.825518Z"},"content_sha256":"ad615ab0c4996aec4478e38e52773300d6b83e2d8c0481fb9a68897b2c814476","schema_version":"1.0","event_id":"sha256:ad615ab0c4996aec4478e38e52773300d6b83e2d8c0481fb9a68897b2c814476"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WOMXSBVOYJQQ5DDVKR4XK5AYTS/bundle.json","state_url":"https://pith.science/pith/WOMXSBVOYJQQ5DDVKR4XK5AYTS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WOMXSBVOYJQQ5DDVKR4XK5AYTS/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":"2026-05-26T03:25:24Z","links":{"resolver":"https://pith.science/pith/WOMXSBVOYJQQ5DDVKR4XK5AYTS","bundle":"https://pith.science/pith/WOMXSBVOYJQQ5DDVKR4XK5AYTS/bundle.json","state":"https://pith.science/pith/WOMXSBVOYJQQ5DDVKR4XK5AYTS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WOMXSBVOYJQQ5DDVKR4XK5AYTS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:WOMXSBVOYJQQ5DDVKR4XK5AYTS","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":"1a0d3ab979de6388c42526b3a234d1511ef54881524fc8a6f70d49155473859f","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-01T06:31:41Z","title_canon_sha256":"e33a1644da38afe401491139682c1d0d7478631631439fc34d0fc3972493003c"},"schema_version":"1.0","source":{"id":"1903.00174","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1903.00174","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"arxiv_version","alias_value":"1903.00174v1","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.00174","created_at":"2026-05-17T23:48:30Z"},{"alias_kind":"pith_short_12","alias_value":"WOMXSBVOYJQQ","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_16","alias_value":"WOMXSBVOYJQQ5DDV","created_at":"2026-05-18T12:33:30Z"},{"alias_kind":"pith_short_8","alias_value":"WOMXSBVO","created_at":"2026-05-18T12:33:30Z"}],"graph_snapshots":[{"event_id":"sha256:ad615ab0c4996aec4478e38e52773300d6b83e2d8c0481fb9a68897b2c814476","target":"graph","created_at":"2026-05-17T23:48:30Z","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"},"paper":{"abstract_excerpt":"We present results from a quantitative spectroscopic analysis conducted on archival Keck/HIRES high-resolution spectra from the California-$Kepler$ Survey (CKS) sample of transiting planetary host stars identified from the $Kepler$ mission. The spectroscopic analysis was based on a carefully selected set of Fe I and Fe II lines, resulting in precise values for the stellar parameters of effective temperature (T$_{\\rm eff}$) and surface gravity (log $g$). Combining the stellar parameters with $Gaia$ DR2 parallaxes and precise distances, we derived both stellar and planetary radii for our sample,","authors_text":"Cintia F. Martinez, Katia Cunha, Luan Ghezzi, Verne V. Smith","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-01T06:31:41Z","title":"A Spectroscopic Analysis of the California-Kepler Survey Sample: I. Stellar Parameters, Planetary Radii and a Slope in the Radius Gap"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.00174","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":"sha256:67a3e88e9f7a11435e024a9cadb535fc331a460a317ff13aa75aac1526f6aaa2","target":"record","created_at":"2026-05-17T23:48:30Z","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":"1a0d3ab979de6388c42526b3a234d1511ef54881524fc8a6f70d49155473859f","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-03-01T06:31:41Z","title_canon_sha256":"e33a1644da38afe401491139682c1d0d7478631631439fc34d0fc3972493003c"},"schema_version":"1.0","source":{"id":"1903.00174","kind":"arxiv","version":1}},"canonical_sha256":"b3997906aec2610e8c7554797574189c81c2452db0f9a7f3e253dddad21b404f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b3997906aec2610e8c7554797574189c81c2452db0f9a7f3e253dddad21b404f","first_computed_at":"2026-05-17T23:48:30.189871Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:30.189871Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"HSHkyWN0YDDtanNEfQ9mYZ4l+LDbiy8hPvBHKu6pt5KtMHQVLBvVU0fy8yj6Dp2XYXAlu4lWYZjPeWtMKYQ1Cg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:30.190554Z","signed_message":"canonical_sha256_bytes"},"source_id":"1903.00174","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:67a3e88e9f7a11435e024a9cadb535fc331a460a317ff13aa75aac1526f6aaa2","sha256:ad615ab0c4996aec4478e38e52773300d6b83e2d8c0481fb9a68897b2c814476"],"state_sha256":"dd68119c6a2ca4328520c60d9b0f1afe843491842290b62ad9efbf6bea296116"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+5RzCw6LCeCUWB0mUI5++wGlvWD4nLEBwzZFrjq6Z63mkS3lJKGJ+QlYdM4lF3CzGfsgyEdLIet0FSpM+uqUCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T03:25:24.828494Z","bundle_sha256":"c8af61776f1152399719acd7dd50e5e52e44742041ec02cb9ae6223aa6eb148a"}}