{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:5SKMPE4NMB5DDJSTUC7JVMXJRV","short_pith_number":"pith:5SKMPE4N","canonical_record":{"source":{"id":"1207.6212","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-07-26T09:11:11Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"8216cb90a16d7f6cf5c10111a851062556ef06eed04a78cbe36bf64e903847aa","abstract_canon_sha256":"967d01f79822dea72d83af633aa2f97605876d17eb383cb48c22dd7a9e52e15d"},"schema_version":"1.0"},"canonical_sha256":"ec94c7938d607a31a653a0be9ab2e98d4abe10f8887e66801d9c31b7d2b1515a","source":{"kind":"arxiv","id":"1207.6212","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.6212","created_at":"2026-05-18T03:49:45Z"},{"alias_kind":"arxiv_version","alias_value":"1207.6212v2","created_at":"2026-05-18T03:49:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.6212","created_at":"2026-05-18T03:49:45Z"},{"alias_kind":"pith_short_12","alias_value":"5SKMPE4NMB5D","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"5SKMPE4NMB5DDJST","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"5SKMPE4N","created_at":"2026-05-18T12:26:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:5SKMPE4NMB5DDJSTUC7JVMXJRV","target":"record","payload":{"canonical_record":{"source":{"id":"1207.6212","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-07-26T09:11:11Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"8216cb90a16d7f6cf5c10111a851062556ef06eed04a78cbe36bf64e903847aa","abstract_canon_sha256":"967d01f79822dea72d83af633aa2f97605876d17eb383cb48c22dd7a9e52e15d"},"schema_version":"1.0"},"canonical_sha256":"ec94c7938d607a31a653a0be9ab2e98d4abe10f8887e66801d9c31b7d2b1515a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:49:45.293385Z","signature_b64":"PWBIhavFiUr8smwpvlM+pVNApNcqC5qfAT5U4adHd9hzeu7isa0BW56YR7FQ5sy4rX05UcO3L5K57WGXw2SEDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ec94c7938d607a31a653a0be9ab2e98d4abe10f8887e66801d9c31b7d2b1515a","last_reissued_at":"2026-05-18T03:49:45.292675Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:49:45.292675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.6212","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:49:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gWJZiIOhBC5J3LcqcdYDXRwFQOmfWy+1d6Rdz9SWsngKvXET3Kzk2zP+QQi1XkPGL6GhBLMXTGuf3Z5d4rukBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:21:51.343660Z"},"content_sha256":"c2f9579e8ec332c57ad80511192638d1a8fcaccfd2df59677ac9564f54f9f0e2","schema_version":"1.0","event_id":"sha256:c2f9579e8ec332c57ad80511192638d1a8fcaccfd2df59677ac9564f54f9f0e2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:5SKMPE4NMB5DDJSTUC7JVMXJRV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precise Radial Velocities of 2046 Nearby FGKM Stars and 131 Standards","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. W. Howard, C. Chubak, D. A. Fischer, G. Marcy, H. Isaacson, J. A. Johnson, J. T. Wright","submitted_at":"2012-07-26T09:11:11Z","abstract_excerpt":"We present radial velocities with an accuracy of 0.1 km/s for 2046 stars of spectral type F,G,K, and M, based on 29000 spectra taken with the Keck I telescope. We also present 131 FGKM standard stars, all of which exhibit constant radial velocity for at least 10 years, with an RMS less than 0.03 km/s. All velocities are measured relative to the solar system barycenter. Spectra of the Sun and of asteroids pin the zero-point of our velocities, yielding a velocity accuracy of 0.01 km/s for G2V stars. This velocity zero-point agrees within 0.01 \\kms with the zero-points carefully determined by Nid"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.6212","kind":"arxiv","version":2},"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":"2026-05-18T03:49:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0xCTe138UtVS/eS5suruv50Wa877s3KTPL3qciSxijrY6gj3YOwldylLTeWBP+g9Iy6jo7z9DjsoKyB1uSAwAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T08:21:51.344353Z"},"content_sha256":"2bee402d7bb265d9c4a95c9ffca3a72545fd14fcac7d902c04fe502ea45a3c03","schema_version":"1.0","event_id":"sha256:2bee402d7bb265d9c4a95c9ffca3a72545fd14fcac7d902c04fe502ea45a3c03"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5SKMPE4NMB5DDJSTUC7JVMXJRV/bundle.json","state_url":"https://pith.science/pith/5SKMPE4NMB5DDJSTUC7JVMXJRV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5SKMPE4NMB5DDJSTUC7JVMXJRV/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":"2026-05-26T08:21:51Z","links":{"resolver":"https://pith.science/pith/5SKMPE4NMB5DDJSTUC7JVMXJRV","bundle":"https://pith.science/pith/5SKMPE4NMB5DDJSTUC7JVMXJRV/bundle.json","state":"https://pith.science/pith/5SKMPE4NMB5DDJSTUC7JVMXJRV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5SKMPE4NMB5DDJSTUC7JVMXJRV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:5SKMPE4NMB5DDJSTUC7JVMXJRV","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":"967d01f79822dea72d83af633aa2f97605876d17eb383cb48c22dd7a9e52e15d","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-07-26T09:11:11Z","title_canon_sha256":"8216cb90a16d7f6cf5c10111a851062556ef06eed04a78cbe36bf64e903847aa"},"schema_version":"1.0","source":{"id":"1207.6212","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.6212","created_at":"2026-05-18T03:49:45Z"},{"alias_kind":"arxiv_version","alias_value":"1207.6212v2","created_at":"2026-05-18T03:49:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.6212","created_at":"2026-05-18T03:49:45Z"},{"alias_kind":"pith_short_12","alias_value":"5SKMPE4NMB5D","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_16","alias_value":"5SKMPE4NMB5DDJST","created_at":"2026-05-18T12:26:56Z"},{"alias_kind":"pith_short_8","alias_value":"5SKMPE4N","created_at":"2026-05-18T12:26:56Z"}],"graph_snapshots":[{"event_id":"sha256:2bee402d7bb265d9c4a95c9ffca3a72545fd14fcac7d902c04fe502ea45a3c03","target":"graph","created_at":"2026-05-18T03:49:45Z","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 radial velocities with an accuracy of 0.1 km/s for 2046 stars of spectral type F,G,K, and M, based on 29000 spectra taken with the Keck I telescope. We also present 131 FGKM standard stars, all of which exhibit constant radial velocity for at least 10 years, with an RMS less than 0.03 km/s. All velocities are measured relative to the solar system barycenter. Spectra of the Sun and of asteroids pin the zero-point of our velocities, yielding a velocity accuracy of 0.01 km/s for G2V stars. This velocity zero-point agrees within 0.01 \\kms with the zero-points carefully determined by Nid","authors_text":"A. W. Howard, C. Chubak, D. A. Fischer, G. Marcy, H. Isaacson, J. A. Johnson, J. T. Wright","cross_cats":["astro-ph.IM","astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-07-26T09:11:11Z","title":"Precise Radial Velocities of 2046 Nearby FGKM Stars and 131 Standards"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.6212","kind":"arxiv","version":2},"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:c2f9579e8ec332c57ad80511192638d1a8fcaccfd2df59677ac9564f54f9f0e2","target":"record","created_at":"2026-05-18T03:49:45Z","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":"967d01f79822dea72d83af633aa2f97605876d17eb383cb48c22dd7a9e52e15d","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2012-07-26T09:11:11Z","title_canon_sha256":"8216cb90a16d7f6cf5c10111a851062556ef06eed04a78cbe36bf64e903847aa"},"schema_version":"1.0","source":{"id":"1207.6212","kind":"arxiv","version":2}},"canonical_sha256":"ec94c7938d607a31a653a0be9ab2e98d4abe10f8887e66801d9c31b7d2b1515a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec94c7938d607a31a653a0be9ab2e98d4abe10f8887e66801d9c31b7d2b1515a","first_computed_at":"2026-05-18T03:49:45.292675Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:49:45.292675Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"PWBIhavFiUr8smwpvlM+pVNApNcqC5qfAT5U4adHd9hzeu7isa0BW56YR7FQ5sy4rX05UcO3L5K57WGXw2SEDA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:49:45.293385Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.6212","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c2f9579e8ec332c57ad80511192638d1a8fcaccfd2df59677ac9564f54f9f0e2","sha256:2bee402d7bb265d9c4a95c9ffca3a72545fd14fcac7d902c04fe502ea45a3c03"],"state_sha256":"79c1d9441c9e3e9a8a77bc98ca51d55d510ebbf00ec8d38e42c543276ebc94ff"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6Jn8SJn9JQJn5IHLvcMZgT6yesxTA5/VZZ+dgkE275zHWkxnXnvsK6licjz73kFXHkFm3ejMsCMMmfe/cbo0Cw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T08:21:51.348088Z","bundle_sha256":"d659ce4ed6fd249bc83167572ec94c5b6e68cabdb05f6a09007d8792fd525c90"}}