{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:2JBSDBQIU6VFRGWPAL4UU5AEQA","short_pith_number":"pith:2JBSDBQI","canonical_record":{"source":{"id":"1901.08861","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-25T13:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"ddb52b641d7444e11f4adb3b244f2d061a8ad1c841283d234ed7b07fbf2dcbbd","abstract_canon_sha256":"63c672d8885e95f03c70907e4baec9259c26aa445fc7d00e61695d44127278b0"},"schema_version":"1.0"},"canonical_sha256":"d243218608a7aa589acf02f94a7404801231580c0c8149dc9b1a932c696e404c","source":{"kind":"arxiv","id":"1901.08861","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08861","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08861v1","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08861","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"pith_short_12","alias_value":"2JBSDBQIU6VF","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"2JBSDBQIU6VFRGWP","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"2JBSDBQI","created_at":"2026-05-18T12:33:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:2JBSDBQIU6VFRGWPAL4UU5AEQA","target":"record","payload":{"canonical_record":{"source":{"id":"1901.08861","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-25T13:00:02Z","cross_cats_sorted":[],"title_canon_sha256":"ddb52b641d7444e11f4adb3b244f2d061a8ad1c841283d234ed7b07fbf2dcbbd","abstract_canon_sha256":"63c672d8885e95f03c70907e4baec9259c26aa445fc7d00e61695d44127278b0"},"schema_version":"1.0"},"canonical_sha256":"d243218608a7aa589acf02f94a7404801231580c0c8149dc9b1a932c696e404c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:03.073922Z","signature_b64":"JUwGj3luncYYSUaDCCcAySp5FRIwID/P3AyJOgxdntAPevQUfIGdsLgVU/CoCex8hz/PRfFKG9YdMZ7JYVTKBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d243218608a7aa589acf02f94a7404801231580c0c8149dc9b1a932c696e404c","last_reissued_at":"2026-05-17T23:52:03.073336Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:03.073336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1901.08861","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":"2026-05-17T23:52:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7Gx2AYhOZjvYB1l7UhN3GEskh12UYud37OEm8vh3w6srWvGXvPFP96yI8ezUTGI+fqAuFjTL+z+hzS3n7k7BDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:40:00.121783Z"},"content_sha256":"710ea687a369c5dba049a18e11759761e0b88424e9a62c43ad6292e3232559e8","schema_version":"1.0","event_id":"sha256:710ea687a369c5dba049a18e11759761e0b88424e9a62c43ad6292e3232559e8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:2JBSDBQIU6VFRGWPAL4UU5AEQA","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The CARMENES search for exoplanets around M dwarfs. Activity indicators at visible and near-infrared wavelengths","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Kaminski, A. Quirrenbach, A. Reiners, B. Fuhrmeister, D. Montes, D. Shulyak, E. N. Johnson, E. W. Guenther, F. F. Bauer, G. Anglada-Escud\\'e, I. Ribas, J. A. Caballero, J. C. Morales, L. Tal-Or, M. Cort\\'es-Contreras, M. K\\\"urster, M. Lafarga, M. Zechmeister, P. J. Amado, P. Sch\\\"ofer, S. Dreizler, S. Pedraz, S. V. Jeffers, V. J. S. B\\'ejar","submitted_at":"2019-01-25T13:00:02Z","abstract_excerpt":"The CARMENES survey is searching for Earth-like planets orbiting M dwarfs using the radial velocity method. Studying the stellar activity of the target stars is important to avoid false planet detections and to improve our understanding of the atmospheres of late-type stars. In this work we present measurements of activity indicators at visible and near-infrared wavelengths for 331 M dwarfs observed with CARMENES. Our aim is to identify the activity indicators that are most sensitive and easiest to measure, and the correlations among these indicators. We also wish to characterise their variabi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08861","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":"2026-05-17T23:52:03Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sSHQyib1cdx9rCXui5ef03KBbaDsPPzmYwSOGpLGLiMvgXmUGCSCTnI5JuIpcihCUEassTCfJPYbCP0OPniNCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T23:40:00.122498Z"},"content_sha256":"1d1d7e4686310978f9519a4de8f4186d2734f1d7275dc69a19f63626567a6d48","schema_version":"1.0","event_id":"sha256:1d1d7e4686310978f9519a4de8f4186d2734f1d7275dc69a19f63626567a6d48"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2JBSDBQIU6VFRGWPAL4UU5AEQA/bundle.json","state_url":"https://pith.science/pith/2JBSDBQIU6VFRGWPAL4UU5AEQA/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2JBSDBQIU6VFRGWPAL4UU5AEQA/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":"2026-05-25T23:40:00Z","links":{"resolver":"https://pith.science/pith/2JBSDBQIU6VFRGWPAL4UU5AEQA","bundle":"https://pith.science/pith/2JBSDBQIU6VFRGWPAL4UU5AEQA/bundle.json","state":"https://pith.science/pith/2JBSDBQIU6VFRGWPAL4UU5AEQA/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2JBSDBQIU6VFRGWPAL4UU5AEQA/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:2JBSDBQIU6VFRGWPAL4UU5AEQA","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":"63c672d8885e95f03c70907e4baec9259c26aa445fc7d00e61695d44127278b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-25T13:00:02Z","title_canon_sha256":"ddb52b641d7444e11f4adb3b244f2d061a8ad1c841283d234ed7b07fbf2dcbbd"},"schema_version":"1.0","source":{"id":"1901.08861","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1901.08861","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"arxiv_version","alias_value":"1901.08861v1","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1901.08861","created_at":"2026-05-17T23:52:03Z"},{"alias_kind":"pith_short_12","alias_value":"2JBSDBQIU6VF","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_16","alias_value":"2JBSDBQIU6VFRGWP","created_at":"2026-05-18T12:33:07Z"},{"alias_kind":"pith_short_8","alias_value":"2JBSDBQI","created_at":"2026-05-18T12:33:07Z"}],"graph_snapshots":[{"event_id":"sha256:1d1d7e4686310978f9519a4de8f4186d2734f1d7275dc69a19f63626567a6d48","target":"graph","created_at":"2026-05-17T23:52:03Z","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":"The CARMENES survey is searching for Earth-like planets orbiting M dwarfs using the radial velocity method. Studying the stellar activity of the target stars is important to avoid false planet detections and to improve our understanding of the atmospheres of late-type stars. In this work we present measurements of activity indicators at visible and near-infrared wavelengths for 331 M dwarfs observed with CARMENES. Our aim is to identify the activity indicators that are most sensitive and easiest to measure, and the correlations among these indicators. We also wish to characterise their variabi","authors_text":"A. Kaminski, A. Quirrenbach, A. Reiners, B. Fuhrmeister, D. Montes, D. Shulyak, E. N. Johnson, E. W. Guenther, F. F. Bauer, G. Anglada-Escud\\'e, I. Ribas, J. A. Caballero, J. C. Morales, L. Tal-Or, M. Cort\\'es-Contreras, M. K\\\"urster, M. Lafarga, M. Zechmeister, P. J. Amado, P. Sch\\\"ofer, S. Dreizler, S. Pedraz, S. V. Jeffers, V. J. S. B\\'ejar","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-25T13:00:02Z","title":"The CARMENES search for exoplanets around M dwarfs. Activity indicators at visible and near-infrared wavelengths"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08861","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":"sha256:710ea687a369c5dba049a18e11759761e0b88424e9a62c43ad6292e3232559e8","target":"record","created_at":"2026-05-17T23:52:03Z","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":"63c672d8885e95f03c70907e4baec9259c26aa445fc7d00e61695d44127278b0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-01-25T13:00:02Z","title_canon_sha256":"ddb52b641d7444e11f4adb3b244f2d061a8ad1c841283d234ed7b07fbf2dcbbd"},"schema_version":"1.0","source":{"id":"1901.08861","kind":"arxiv","version":1}},"canonical_sha256":"d243218608a7aa589acf02f94a7404801231580c0c8149dc9b1a932c696e404c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d243218608a7aa589acf02f94a7404801231580c0c8149dc9b1a932c696e404c","first_computed_at":"2026-05-17T23:52:03.073336Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:52:03.073336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JUwGj3luncYYSUaDCCcAySp5FRIwID/P3AyJOgxdntAPevQUfIGdsLgVU/CoCex8hz/PRfFKG9YdMZ7JYVTKBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:52:03.073922Z","signed_message":"canonical_sha256_bytes"},"source_id":"1901.08861","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:710ea687a369c5dba049a18e11759761e0b88424e9a62c43ad6292e3232559e8","sha256:1d1d7e4686310978f9519a4de8f4186d2734f1d7275dc69a19f63626567a6d48"],"state_sha256":"907a431de9b0bac172aaa8f2c676708af2422bd59797f589eaf562d5aa19f960"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LjDZ0s5upHrKpfTh0AUCFt1Sg4hWpyA2rOoNqtvgWE2e3Qny1jriJbg8HR8KIXrZ55YN1KrI6EEZqqJA/gStBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T23:40:00.126218Z","bundle_sha256":"ef67275cbbc475e6795a6454675ef271e599419d5d84d7b3f7aecb6b22f705da"}}