{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:OCELPTMGXTXQIN5PLDJGTGT3Z7","short_pith_number":"pith:OCELPTMG","canonical_record":{"source":{"id":"2210.08078","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-10-14T19:53:07Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"34d561f402bccbf31566496d8cfbfa58ae0ff761aed98a68319d78e134e8bbb6","abstract_canon_sha256":"4c0567c7dcf7059cd0b504a81c52f84a6786282aa582424653c1ab508ab5b31c"},"schema_version":"1.0"},"canonical_sha256":"7088b7cd86bcef0437af58d2699a7bcfcd361ee9e23e453a85befdc1e6100bdd","source":{"kind":"arxiv","id":"2210.08078","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.08078","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"arxiv_version","alias_value":"2210.08078v1","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.08078","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"pith_short_12","alias_value":"OCELPTMGXTXQ","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"pith_short_16","alias_value":"OCELPTMGXTXQIN5P","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"pith_short_8","alias_value":"OCELPTMG","created_at":"2026-07-05T05:16:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:OCELPTMGXTXQIN5PLDJGTGT3Z7","target":"record","payload":{"canonical_record":{"source":{"id":"2210.08078","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-10-14T19:53:07Z","cross_cats_sorted":["astro-ph.IM"],"title_canon_sha256":"34d561f402bccbf31566496d8cfbfa58ae0ff761aed98a68319d78e134e8bbb6","abstract_canon_sha256":"4c0567c7dcf7059cd0b504a81c52f84a6786282aa582424653c1ab508ab5b31c"},"schema_version":"1.0"},"canonical_sha256":"7088b7cd86bcef0437af58d2699a7bcfcd361ee9e23e453a85befdc1e6100bdd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:16:25.072009Z","signature_b64":"KYlnTKqsYZroBlT2s7LUgYJOfZoddAyQUMb2JaA2RDuvLTHJm60IuW1s9/nm5RnA+n1pIdj0V07O12AV/q//Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7088b7cd86bcef0437af58d2699a7bcfcd361ee9e23e453a85befdc1e6100bdd","last_reissued_at":"2026-07-05T05:16:25.071531Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:16:25.071531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2210.08078","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":"2026-07-05T05:16:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bzqH0cI60Iq0QMB2a3eBoyHTOOP6BhrYWuwlra7vY2ufGc/LjPG3bcCbjy/6Y1WdNlISbXal4YRphkk0aSK9DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T21:01:17.553875Z"},"content_sha256":"aca6ea5d3e589a6d4d926375c6214848ecfae713e253adb6916201f7fcf284f0","schema_version":"1.0","event_id":"sha256:aca6ea5d3e589a6d4d926375c6214848ecfae713e253adb6916201f7fcf284f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:OCELPTMGXTXQIN5PLDJGTGT3Z7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Revisiting Radial Velocity Measurements of the K2-18 System with the Line-by-Line Framework","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"Andreas Quirrenbach, Ansgar Reiners, Charles Cadieux, David Lafreni\\`ere, \\'Etienne Artigau, Ignasi Ribas, Jos\\'e A Caballero, Michael Radica, Neil J. Cook, Pedro J. Amado, Ren\\'e Doyon, Thomas Henning","submitted_at":"2022-10-14T19:53:07Z","abstract_excerpt":"The cross-correlation function and template matching techniques have dominated the world of precision radial velocities for many years. Recently, a new technique, named line-by-line, has been developed as an outlier resistant way to efficiently extract radial velocity content from high resolution spectra. We apply this new method to archival HARPS and CARMENES datasets of the K2-18 system. After reprocessing the HARPS dataset with the line-by-line framework, we are able to replicate the findings of previous studies. Furthermore, by splitting the full wavelength range into sub-domains, we were "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.08078","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/2210.08078/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":"2026-07-05T05:16:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a7CP5PhXuv560vU3wyOAlkrjQ573UIDOLYWyDulFsB23fhr7CCpy/uLal35hPitPer7GQbUdh+qJqneArh67Bw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T21:01:17.554368Z"},"content_sha256":"e964c2f968a3c98d159357260a87315565671ee2deb9b7c9e6a530c6f1160242","schema_version":"1.0","event_id":"sha256:e964c2f968a3c98d159357260a87315565671ee2deb9b7c9e6a530c6f1160242"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/OCELPTMGXTXQIN5PLDJGTGT3Z7/bundle.json","state_url":"https://pith.science/pith/OCELPTMGXTXQIN5PLDJGTGT3Z7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/OCELPTMGXTXQIN5PLDJGTGT3Z7/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":"2026-08-08T21:01:17Z","links":{"resolver":"https://pith.science/pith/OCELPTMGXTXQIN5PLDJGTGT3Z7","bundle":"https://pith.science/pith/OCELPTMGXTXQIN5PLDJGTGT3Z7/bundle.json","state":"https://pith.science/pith/OCELPTMGXTXQIN5PLDJGTGT3Z7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/OCELPTMGXTXQIN5PLDJGTGT3Z7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:OCELPTMGXTXQIN5PLDJGTGT3Z7","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":"4c0567c7dcf7059cd0b504a81c52f84a6786282aa582424653c1ab508ab5b31c","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-10-14T19:53:07Z","title_canon_sha256":"34d561f402bccbf31566496d8cfbfa58ae0ff761aed98a68319d78e134e8bbb6"},"schema_version":"1.0","source":{"id":"2210.08078","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2210.08078","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"arxiv_version","alias_value":"2210.08078v1","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2210.08078","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"pith_short_12","alias_value":"OCELPTMGXTXQ","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"pith_short_16","alias_value":"OCELPTMGXTXQIN5P","created_at":"2026-07-05T05:16:25Z"},{"alias_kind":"pith_short_8","alias_value":"OCELPTMG","created_at":"2026-07-05T05:16:25Z"}],"graph_snapshots":[{"event_id":"sha256:e964c2f968a3c98d159357260a87315565671ee2deb9b7c9e6a530c6f1160242","target":"graph","created_at":"2026-07-05T05:16:25Z","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/2210.08078/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The cross-correlation function and template matching techniques have dominated the world of precision radial velocities for many years. Recently, a new technique, named line-by-line, has been developed as an outlier resistant way to efficiently extract radial velocity content from high resolution spectra. We apply this new method to archival HARPS and CARMENES datasets of the K2-18 system. After reprocessing the HARPS dataset with the line-by-line framework, we are able to replicate the findings of previous studies. Furthermore, by splitting the full wavelength range into sub-domains, we were ","authors_text":"Andreas Quirrenbach, Ansgar Reiners, Charles Cadieux, David Lafreni\\`ere, \\'Etienne Artigau, Ignasi Ribas, Jos\\'e A Caballero, Michael Radica, Neil J. Cook, Pedro J. Amado, Ren\\'e Doyon, Thomas Henning","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-10-14T19:53:07Z","title":"Revisiting Radial Velocity Measurements of the K2-18 System with the Line-by-Line Framework"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2210.08078","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:aca6ea5d3e589a6d4d926375c6214848ecfae713e253adb6916201f7fcf284f0","target":"record","created_at":"2026-07-05T05:16:25Z","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":"4c0567c7dcf7059cd0b504a81c52f84a6786282aa582424653c1ab508ab5b31c","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2022-10-14T19:53:07Z","title_canon_sha256":"34d561f402bccbf31566496d8cfbfa58ae0ff761aed98a68319d78e134e8bbb6"},"schema_version":"1.0","source":{"id":"2210.08078","kind":"arxiv","version":1}},"canonical_sha256":"7088b7cd86bcef0437af58d2699a7bcfcd361ee9e23e453a85befdc1e6100bdd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7088b7cd86bcef0437af58d2699a7bcfcd361ee9e23e453a85befdc1e6100bdd","first_computed_at":"2026-07-05T05:16:25.071531Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:16:25.071531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KYlnTKqsYZroBlT2s7LUgYJOfZoddAyQUMb2JaA2RDuvLTHJm60IuW1s9/nm5RnA+n1pIdj0V07O12AV/q//Ag==","signature_status":"signed_v1","signed_at":"2026-07-05T05:16:25.072009Z","signed_message":"canonical_sha256_bytes"},"source_id":"2210.08078","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aca6ea5d3e589a6d4d926375c6214848ecfae713e253adb6916201f7fcf284f0","sha256:e964c2f968a3c98d159357260a87315565671ee2deb9b7c9e6a530c6f1160242"],"state_sha256":"8cd6c8f4bd139f3850b33c7bf76bbd6a9759f97cc6af00242437b1ecea80329f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KxS84Aa9VE5MgekTakqDH5KZfVW8XYPuIrTONRLgtEFDmmwQT7N7LD2IC8hu7ijQaT8cl3p6roqSSlcso8StDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T21:01:17.557584Z","bundle_sha256":"63b72ed80cb9471b862fe0cce4cfe0e863ac55288722649dfd5ba18110fab883"}}