{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:D4TO5LF6ZWX6E6M7L7OCZH2PYS","short_pith_number":"pith:D4TO5LF6","canonical_record":{"source":{"id":"1911.05319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-11-13T06:46:56Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"970fb69d5dfa2830e79f19cd24d30a0ccdeb71430a2820d0748336dc0bc5c005","abstract_canon_sha256":"741f22f3d9105667215c95e8ca3a00b107a7b75d115574e01bfa3e270c5c3d9b"},"schema_version":"1.0"},"canonical_sha256":"1f26eeacbecdafe2799f5fdc2c9f4fc4a5ac89f5e45229d8096247af1065a789","source":{"kind":"arxiv","id":"1911.05319","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.05319","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"arxiv_version","alias_value":"1911.05319v1","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.05319","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"pith_short_12","alias_value":"D4TO5LF6ZWX6","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"D4TO5LF6ZWX6E6M7","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"D4TO5LF6","created_at":"2026-07-05T00:30:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:D4TO5LF6ZWX6E6M7L7OCZH2PYS","target":"record","payload":{"canonical_record":{"source":{"id":"1911.05319","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-11-13T06:46:56Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"970fb69d5dfa2830e79f19cd24d30a0ccdeb71430a2820d0748336dc0bc5c005","abstract_canon_sha256":"741f22f3d9105667215c95e8ca3a00b107a7b75d115574e01bfa3e270c5c3d9b"},"schema_version":"1.0"},"canonical_sha256":"1f26eeacbecdafe2799f5fdc2c9f4fc4a5ac89f5e45229d8096247af1065a789","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:30:36.108303Z","signature_b64":"OXDpJDFAIeff4CHulN7b+Vg/GzGJl1WnCESNMkXB5NDDbUerRCtftvTWoAm9vANW1YTd7yOrCiOxDtaFGfFnBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1f26eeacbecdafe2799f5fdc2c9f4fc4a5ac89f5e45229d8096247af1065a789","last_reissued_at":"2026-07-05T00:30:36.107967Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:30:36.107967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1911.05319","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":"2026-07-05T00:30:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yX8iWvlZG9rL6xj4UYTwTxrR06ybqoVouFfFYTcOqq/XBsB1EILzt42gSwPLgH5r/yzJrUkZZq7w5JTNsqc2DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T07:04:52.640115Z"},"content_sha256":"8f58865eb42265b5f38a4eb88ea29d28de09319b7c523a812647d4030eea0e05","schema_version":"1.0","event_id":"sha256:8f58865eb42265b5f38a4eb88ea29d28de09319b7c523a812647d4030eea0e05"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:D4TO5LF6ZWX6E6M7L7OCZH2PYS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Activity time series of old stars from late F to early K. IV. Limits of the correction of radial velocities using chromospheric emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"Anne-Marie Lagrange, Nad\\`ege Meunier, Sylvain Cuzacq","submitted_at":"2019-11-13T06:46:56Z","abstract_excerpt":"Inhibition of the convective blueshift in active regions is a major contribution to the radial velocity variations, at least for solar-like stars. A common technique to correct for this component is to model the RV as a linear function of chromospheric emission, because both are strongly correlated with the coverage by plages. This correction is not perfect: the aim of the present study is to understand the limits of this correction and to improve it. We investigate these questions by analysing a large set of synthetic time series corresponding to old main sequence F6-K4 stars modelled using a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.05319","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/1911.05319/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":"2026-07-05T00:30:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HZItkwxWc7nrAtN5Kk79GKthKS39in8Eje3rsNw6yhh1CMsAgKhexw4Mw+IR/2l13H/3BAWXnUPV9vi1gdkXBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-27T07:04:52.640506Z"},"content_sha256":"1be286cd524b77e0fdc6448b2b29a9f62d64a1e61bcc9e67be2298b4128b7806","schema_version":"1.0","event_id":"sha256:1be286cd524b77e0fdc6448b2b29a9f62d64a1e61bcc9e67be2298b4128b7806"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D4TO5LF6ZWX6E6M7L7OCZH2PYS/bundle.json","state_url":"https://pith.science/pith/D4TO5LF6ZWX6E6M7L7OCZH2PYS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D4TO5LF6ZWX6E6M7L7OCZH2PYS/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":"2026-07-27T07:04:52Z","links":{"resolver":"https://pith.science/pith/D4TO5LF6ZWX6E6M7L7OCZH2PYS","bundle":"https://pith.science/pith/D4TO5LF6ZWX6E6M7L7OCZH2PYS/bundle.json","state":"https://pith.science/pith/D4TO5LF6ZWX6E6M7L7OCZH2PYS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D4TO5LF6ZWX6E6M7L7OCZH2PYS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:D4TO5LF6ZWX6E6M7L7OCZH2PYS","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":"741f22f3d9105667215c95e8ca3a00b107a7b75d115574e01bfa3e270c5c3d9b","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-11-13T06:46:56Z","title_canon_sha256":"970fb69d5dfa2830e79f19cd24d30a0ccdeb71430a2820d0748336dc0bc5c005"},"schema_version":"1.0","source":{"id":"1911.05319","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1911.05319","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"arxiv_version","alias_value":"1911.05319v1","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.05319","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"pith_short_12","alias_value":"D4TO5LF6ZWX6","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"pith_short_16","alias_value":"D4TO5LF6ZWX6E6M7","created_at":"2026-07-05T00:30:36Z"},{"alias_kind":"pith_short_8","alias_value":"D4TO5LF6","created_at":"2026-07-05T00:30:36Z"}],"graph_snapshots":[{"event_id":"sha256:1be286cd524b77e0fdc6448b2b29a9f62d64a1e61bcc9e67be2298b4128b7806","target":"graph","created_at":"2026-07-05T00:30:36Z","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/1911.05319/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Inhibition of the convective blueshift in active regions is a major contribution to the radial velocity variations, at least for solar-like stars. A common technique to correct for this component is to model the RV as a linear function of chromospheric emission, because both are strongly correlated with the coverage by plages. This correction is not perfect: the aim of the present study is to understand the limits of this correction and to improve it. We investigate these questions by analysing a large set of synthetic time series corresponding to old main sequence F6-K4 stars modelled using a","authors_text":"Anne-Marie Lagrange, Nad\\`ege Meunier, Sylvain Cuzacq","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-11-13T06:46:56Z","title":"Activity time series of old stars from late F to early K. IV. Limits of the correction of radial velocities using chromospheric emission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.05319","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":"sha256:8f58865eb42265b5f38a4eb88ea29d28de09319b7c523a812647d4030eea0e05","target":"record","created_at":"2026-07-05T00:30:36Z","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":"741f22f3d9105667215c95e8ca3a00b107a7b75d115574e01bfa3e270c5c3d9b","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-11-13T06:46:56Z","title_canon_sha256":"970fb69d5dfa2830e79f19cd24d30a0ccdeb71430a2820d0748336dc0bc5c005"},"schema_version":"1.0","source":{"id":"1911.05319","kind":"arxiv","version":1}},"canonical_sha256":"1f26eeacbecdafe2799f5fdc2c9f4fc4a5ac89f5e45229d8096247af1065a789","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1f26eeacbecdafe2799f5fdc2c9f4fc4a5ac89f5e45229d8096247af1065a789","first_computed_at":"2026-07-05T00:30:36.107967Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:30:36.107967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OXDpJDFAIeff4CHulN7b+Vg/GzGJl1WnCESNMkXB5NDDbUerRCtftvTWoAm9vANW1YTd7yOrCiOxDtaFGfFnBw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:30:36.108303Z","signed_message":"canonical_sha256_bytes"},"source_id":"1911.05319","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8f58865eb42265b5f38a4eb88ea29d28de09319b7c523a812647d4030eea0e05","sha256:1be286cd524b77e0fdc6448b2b29a9f62d64a1e61bcc9e67be2298b4128b7806"],"state_sha256":"644a984c05cc3eeafe37e96c65603e175af9389eed1f23a8d377a07bc1709360"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6zAvrkN6LsJboXMUcdpUKLfdrlrBGbg5LyvT7fa90eoy1vy7/OYvaGZio/Oc8gsN0F3vgFs4BuYeay/RjQ7xDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-27T07:04:52.643079Z","bundle_sha256":"fb9d8f28f5f61d4c6c00bcf8f2d72c644d52af79c690ee807813a2705c4c4181"}}