{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:EP2RMROFQWNUYGKUVVR7YMFLSG","short_pith_number":"pith:EP2RMROF","canonical_record":{"source":{"id":"astro-ph/0607136","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-07-07T13:51:22Z","cross_cats_sorted":[],"title_canon_sha256":"2a0a41f541105c8d8ce198c4d023f19ed71c959a9dd83330dc76b047266d84ab","abstract_canon_sha256":"66e0b1aeb85e03732df7dcb97472d1f7c60bb07ddac75675e3f926fe740c466d"},"schema_version":"1.0"},"canonical_sha256":"23f51645c5859b4c1954ad63fc30ab91a9b84fd19cb9b1cca81e893b901828ed","source":{"kind":"arxiv","id":"astro-ph/0607136","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0607136","created_at":"2026-05-18T04:28:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0607136v1","created_at":"2026-05-18T04:28:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0607136","created_at":"2026-05-18T04:28:58Z"},{"alias_kind":"pith_short_12","alias_value":"EP2RMROFQWNU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"EP2RMROFQWNUYGKU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"EP2RMROF","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:EP2RMROFQWNUYGKUVVR7YMFLSG","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0607136","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-07-07T13:51:22Z","cross_cats_sorted":[],"title_canon_sha256":"2a0a41f541105c8d8ce198c4d023f19ed71c959a9dd83330dc76b047266d84ab","abstract_canon_sha256":"66e0b1aeb85e03732df7dcb97472d1f7c60bb07ddac75675e3f926fe740c466d"},"schema_version":"1.0"},"canonical_sha256":"23f51645c5859b4c1954ad63fc30ab91a9b84fd19cb9b1cca81e893b901828ed","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:28:58.480945Z","signature_b64":"JK2Hup80PLgy6BLBta3k9zUZBPQ/LcsBXd/sJPsrDfsQVCzSP+SVAzWWzK/xps5lweHQD8rv63FVp88WRhbPAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"23f51645c5859b4c1954ad63fc30ab91a9b84fd19cb9b1cca81e893b901828ed","last_reissued_at":"2026-05-18T04:28:58.480348Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:28:58.480348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0607136","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":"2026-05-18T04:28:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"d72duoj1nDkKHQrlx9+TLB8/m7tlqqpf6EMbpKf5UgxJspNyyl1Dc3sWoUKkZUyG8/NbJMqB9vVJ3u48jMTLDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:24:17.689310Z"},"content_sha256":"9d344d7c47d702762961792837180f3dc06b80ae9e9fc1f990f97753d58458f0","schema_version":"1.0","event_id":"sha256:9d344d7c47d702762961792837180f3dc06b80ae9e9fc1f990f97753d58458f0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:EP2RMROFQWNUYGKUVVR7YMFLSG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Precise Radial Velocities of Giant Stars II. Pollux and its Planetary Companion","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Andreas Quirrenbach, David S. Mitchell, Debra A. Fischer, Geoffrey W. Marcy, R. Paul Butler, Sabine Reffert, Saskia Hekker, Simon Albrecht","submitted_at":"2006-07-07T13:51:22Z","abstract_excerpt":"It has long been speculated that the observed periodic radial velocity pattern for the K giant Pollux might be explained in terms of an orbiting planetary companion. We have collected 80 high-resolution spectra for Pollux at Lick Observatory yielding precise radial velocities with a mean error of 3.8 m/s, providing the most comprehensive and precise data set available for this star. Our data confirm the periodicity previously seen in the radial velocities. We derive a period of 589.7+/-3.5 days and, assuming a primary mass of 1.86 M_Sun, a minimum companion mass of 2.9+/-0.3 M_Jup, consistent "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0607136","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":"2026-05-18T04:28:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yba0UVgL6zT1v9S4YYw6Uq2dLsgjquIt1twYabbXiOOWV9thqRDlZXKDwNPmxK8TgtJgGvmqHCKTu6qSN2PfAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T20:24:17.689678Z"},"content_sha256":"66b490824d209b232a2d5e38d0a5388dec1c9b1e342f431e35a482c6bbdd094a","schema_version":"1.0","event_id":"sha256:66b490824d209b232a2d5e38d0a5388dec1c9b1e342f431e35a482c6bbdd094a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/EP2RMROFQWNUYGKUVVR7YMFLSG/bundle.json","state_url":"https://pith.science/pith/EP2RMROFQWNUYGKUVVR7YMFLSG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/EP2RMROFQWNUYGKUVVR7YMFLSG/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":"2026-06-04T20:24:17Z","links":{"resolver":"https://pith.science/pith/EP2RMROFQWNUYGKUVVR7YMFLSG","bundle":"https://pith.science/pith/EP2RMROFQWNUYGKUVVR7YMFLSG/bundle.json","state":"https://pith.science/pith/EP2RMROFQWNUYGKUVVR7YMFLSG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/EP2RMROFQWNUYGKUVVR7YMFLSG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:EP2RMROFQWNUYGKUVVR7YMFLSG","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":"66e0b1aeb85e03732df7dcb97472d1f7c60bb07ddac75675e3f926fe740c466d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-07-07T13:51:22Z","title_canon_sha256":"2a0a41f541105c8d8ce198c4d023f19ed71c959a9dd83330dc76b047266d84ab"},"schema_version":"1.0","source":{"id":"astro-ph/0607136","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0607136","created_at":"2026-05-18T04:28:58Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0607136v1","created_at":"2026-05-18T04:28:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0607136","created_at":"2026-05-18T04:28:58Z"},{"alias_kind":"pith_short_12","alias_value":"EP2RMROFQWNU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"EP2RMROFQWNUYGKU","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"EP2RMROF","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:66b490824d209b232a2d5e38d0a5388dec1c9b1e342f431e35a482c6bbdd094a","target":"graph","created_at":"2026-05-18T04:28:58Z","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":"It has long been speculated that the observed periodic radial velocity pattern for the K giant Pollux might be explained in terms of an orbiting planetary companion. We have collected 80 high-resolution spectra for Pollux at Lick Observatory yielding precise radial velocities with a mean error of 3.8 m/s, providing the most comprehensive and precise data set available for this star. Our data confirm the periodicity previously seen in the radial velocities. We derive a period of 589.7+/-3.5 days and, assuming a primary mass of 1.86 M_Sun, a minimum companion mass of 2.9+/-0.3 M_Jup, consistent ","authors_text":"Andreas Quirrenbach, David S. Mitchell, Debra A. Fischer, Geoffrey W. Marcy, R. Paul Butler, Sabine Reffert, Saskia Hekker, Simon Albrecht","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-07-07T13:51:22Z","title":"Precise Radial Velocities of Giant Stars II. Pollux and its Planetary Companion"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0607136","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":"sha256:9d344d7c47d702762961792837180f3dc06b80ae9e9fc1f990f97753d58458f0","target":"record","created_at":"2026-05-18T04:28:58Z","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":"66e0b1aeb85e03732df7dcb97472d1f7c60bb07ddac75675e3f926fe740c466d","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-07-07T13:51:22Z","title_canon_sha256":"2a0a41f541105c8d8ce198c4d023f19ed71c959a9dd83330dc76b047266d84ab"},"schema_version":"1.0","source":{"id":"astro-ph/0607136","kind":"arxiv","version":1}},"canonical_sha256":"23f51645c5859b4c1954ad63fc30ab91a9b84fd19cb9b1cca81e893b901828ed","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"23f51645c5859b4c1954ad63fc30ab91a9b84fd19cb9b1cca81e893b901828ed","first_computed_at":"2026-05-18T04:28:58.480348Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:28:58.480348Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JK2Hup80PLgy6BLBta3k9zUZBPQ/LcsBXd/sJPsrDfsQVCzSP+SVAzWWzK/xps5lweHQD8rv63FVp88WRhbPAA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:28:58.480945Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0607136","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9d344d7c47d702762961792837180f3dc06b80ae9e9fc1f990f97753d58458f0","sha256:66b490824d209b232a2d5e38d0a5388dec1c9b1e342f431e35a482c6bbdd094a"],"state_sha256":"ed24266278fb8b84e8c081b8140192b29d9b35587c69df1f3645c5ce9caafd0b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1H+cSJwLJx8CUv6BGy3B2xVEFMpaK8bv/TKpckdkuLCiHOnKW6xKiG1MOhVs2ExFcepASh1WGA/sRvdZh7GRBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T20:24:17.691838Z","bundle_sha256":"677391a86b95964e5a3d740c4a162df0f356043fac7bd4556b5e608cb6c159a1"}}