{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:ABLSA4PZVCN2A6FIWV5GOVS3Z2","short_pith_number":"pith:ABLSA4PZ","canonical_record":{"source":{"id":"1904.01437","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-04-02T14:05:09Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"de5cfcceb968b6fcc2f1c1d5e10895b92ef188cfa9643454a0a2030457ede74a","abstract_canon_sha256":"1666f2d35c859fc638cc27771cb32c67933361303a5b520fd2b68cb743b93dbf"},"schema_version":"1.0"},"canonical_sha256":"00572071f9a89ba078a8b57a67565bce9681f8627467096b0ebef3c7317fecfd","source":{"kind":"arxiv","id":"1904.01437","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.01437","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"arxiv_version","alias_value":"1904.01437v1","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.01437","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"pith_short_12","alias_value":"ABLSA4PZVCN2","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"ABLSA4PZVCN2A6FI","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"ABLSA4PZ","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:ABLSA4PZVCN2A6FIWV5GOVS3Z2","target":"record","payload":{"canonical_record":{"source":{"id":"1904.01437","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-04-02T14:05:09Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"de5cfcceb968b6fcc2f1c1d5e10895b92ef188cfa9643454a0a2030457ede74a","abstract_canon_sha256":"1666f2d35c859fc638cc27771cb32c67933361303a5b520fd2b68cb743b93dbf"},"schema_version":"1.0"},"canonical_sha256":"00572071f9a89ba078a8b57a67565bce9681f8627467096b0ebef3c7317fecfd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:09.194718Z","signature_b64":"nU0co8mW7B2M40+MFGS1zA/h2llGqlX6Cw4yGyJzbX4x2hFMGmMLPXMKDU6WOZ+fQrdg1PSu7cmta0fZnA6LCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"00572071f9a89ba078a8b57a67565bce9681f8627467096b0ebef3c7317fecfd","last_reissued_at":"2026-05-17T23:41:09.194137Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:09.194137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.01437","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":"2026-05-17T23:41:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qAYIvY1fM77Q2XnZ9I7pOinuFQAfeJApgVKwNO4CWq0H1C+LIdTq2e8V4TNrGlxm/J0+2eXMewMGkpLTxBdiAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:37:48.858971Z"},"content_sha256":"c69415d6f2ebaa9704d9425a4d6d7f3d32ef7c25e7250c02bfe9bfdcffccc2a4","schema_version":"1.0","event_id":"sha256:c69415d6f2ebaa9704d9425a4d6d7f3d32ef7c25e7250c02bfe9bfdcffccc2a4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:ABLSA4PZVCN2A6FIWV5GOVS3Z2","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Activity time series of old stars from late F to early K. I. Simulating radial velocity, astrometry, photometry, and chromospheric emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"A.-M. Lagrange, N. Meunier, S. Borgniet, T. Boulet","submitted_at":"2019-04-02T14:05:09Z","abstract_excerpt":"Solar simulations and observations show that the detection of long-period Earth-like planets is expected to be very difficult with radial velocity techniques in the solar case because of activity. The inhibition of the convective blueshift in active regions (which is then dominating the signal) is expected to decrease toward lower mass stars, which would provide more suitable conditions. In this paper we build synthetic time series to be able to precisely estimate the effects of activity on exoplanet detectability for stars with a wide range of spectral type (F6-K4) and activity levels (old ma"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.01437","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":"2026-05-17T23:41:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0H8CdtKvYHnmBfqmhkOzo0gjVTBkQkNDbj5k5k48e5CpnQltaTfTdANPep8Tesx26OgM3qwnOfkul4qPmFsYCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:37:48.859383Z"},"content_sha256":"0c19ba53d8b8a88f473c82d83396f624ff0474136b25330f4ec7ce6cffbc4c67","schema_version":"1.0","event_id":"sha256:0c19ba53d8b8a88f473c82d83396f624ff0474136b25330f4ec7ce6cffbc4c67"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ABLSA4PZVCN2A6FIWV5GOVS3Z2/bundle.json","state_url":"https://pith.science/pith/ABLSA4PZVCN2A6FIWV5GOVS3Z2/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ABLSA4PZVCN2A6FIWV5GOVS3Z2/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":"2026-06-02T21:37:48Z","links":{"resolver":"https://pith.science/pith/ABLSA4PZVCN2A6FIWV5GOVS3Z2","bundle":"https://pith.science/pith/ABLSA4PZVCN2A6FIWV5GOVS3Z2/bundle.json","state":"https://pith.science/pith/ABLSA4PZVCN2A6FIWV5GOVS3Z2/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ABLSA4PZVCN2A6FIWV5GOVS3Z2/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ABLSA4PZVCN2A6FIWV5GOVS3Z2","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":"1666f2d35c859fc638cc27771cb32c67933361303a5b520fd2b68cb743b93dbf","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-04-02T14:05:09Z","title_canon_sha256":"de5cfcceb968b6fcc2f1c1d5e10895b92ef188cfa9643454a0a2030457ede74a"},"schema_version":"1.0","source":{"id":"1904.01437","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.01437","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"arxiv_version","alias_value":"1904.01437v1","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.01437","created_at":"2026-05-17T23:41:09Z"},{"alias_kind":"pith_short_12","alias_value":"ABLSA4PZVCN2","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"ABLSA4PZVCN2A6FI","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"ABLSA4PZ","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:0c19ba53d8b8a88f473c82d83396f624ff0474136b25330f4ec7ce6cffbc4c67","target":"graph","created_at":"2026-05-17T23:41:09Z","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":"Solar simulations and observations show that the detection of long-period Earth-like planets is expected to be very difficult with radial velocity techniques in the solar case because of activity. The inhibition of the convective blueshift in active regions (which is then dominating the signal) is expected to decrease toward lower mass stars, which would provide more suitable conditions. In this paper we build synthetic time series to be able to precisely estimate the effects of activity on exoplanet detectability for stars with a wide range of spectral type (F6-K4) and activity levels (old ma","authors_text":"A.-M. Lagrange, N. Meunier, S. Borgniet, T. Boulet","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-04-02T14:05:09Z","title":"Activity time series of old stars from late F to early K. I. Simulating radial velocity, astrometry, photometry, and chromospheric emission"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.01437","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:c69415d6f2ebaa9704d9425a4d6d7f3d32ef7c25e7250c02bfe9bfdcffccc2a4","target":"record","created_at":"2026-05-17T23:41:09Z","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":"1666f2d35c859fc638cc27771cb32c67933361303a5b520fd2b68cb743b93dbf","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-04-02T14:05:09Z","title_canon_sha256":"de5cfcceb968b6fcc2f1c1d5e10895b92ef188cfa9643454a0a2030457ede74a"},"schema_version":"1.0","source":{"id":"1904.01437","kind":"arxiv","version":1}},"canonical_sha256":"00572071f9a89ba078a8b57a67565bce9681f8627467096b0ebef3c7317fecfd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"00572071f9a89ba078a8b57a67565bce9681f8627467096b0ebef3c7317fecfd","first_computed_at":"2026-05-17T23:41:09.194137Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:41:09.194137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nU0co8mW7B2M40+MFGS1zA/h2llGqlX6Cw4yGyJzbX4x2hFMGmMLPXMKDU6WOZ+fQrdg1PSu7cmta0fZnA6LCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:41:09.194718Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.01437","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c69415d6f2ebaa9704d9425a4d6d7f3d32ef7c25e7250c02bfe9bfdcffccc2a4","sha256:0c19ba53d8b8a88f473c82d83396f624ff0474136b25330f4ec7ce6cffbc4c67"],"state_sha256":"4d39bd0aecd50d1fa6a18287fc00999d108050b3d6215a4fc3e8b8ec47f4d5e3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"37NuVO0UiM0Zyd/oTrWuYRyFHtuG4ugRkZ2CF2nRYqDS/LBF38OG6mQ/Wu3ncuj4XwPk8K8tdrHXWdhYrwmrAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T21:37:48.861509Z","bundle_sha256":"c5bea70bc1cb9a37f45c8abfce39a1957d01cc87cd65d2aebc521db5d301930e"}}