{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:DDODSD5WABOJBQGTA5GWGVGOMG","short_pith_number":"pith:DDODSD5W","canonical_record":{"source":{"id":"1904.12931","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-04-29T20:06:14Z","cross_cats_sorted":[],"title_canon_sha256":"bd593ab719fb761820da3aa1efe4bc09eefdf9be8ff8df0fb0d674d2e04fa0bd","abstract_canon_sha256":"b842e42e4fe21a11da1ace563166541672d4a80b7f4ee7cd6140a239e7d4902f"},"schema_version":"1.0"},"canonical_sha256":"18dc390fb6005c90c0d3074d6354ce619ecc09a767fc5f7b9bf862268c22a6c4","source":{"kind":"arxiv","id":"1904.12931","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.12931","created_at":"2026-05-17T23:40:32Z"},{"alias_kind":"arxiv_version","alias_value":"1904.12931v2","created_at":"2026-05-17T23:40:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.12931","created_at":"2026-05-17T23:40:32Z"},{"alias_kind":"pith_short_12","alias_value":"DDODSD5WABOJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"DDODSD5WABOJBQGT","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"DDODSD5W","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:DDODSD5WABOJBQGTA5GWGVGOMG","target":"record","payload":{"canonical_record":{"source":{"id":"1904.12931","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-04-29T20:06:14Z","cross_cats_sorted":[],"title_canon_sha256":"bd593ab719fb761820da3aa1efe4bc09eefdf9be8ff8df0fb0d674d2e04fa0bd","abstract_canon_sha256":"b842e42e4fe21a11da1ace563166541672d4a80b7f4ee7cd6140a239e7d4902f"},"schema_version":"1.0"},"canonical_sha256":"18dc390fb6005c90c0d3074d6354ce619ecc09a767fc5f7b9bf862268c22a6c4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:32.273475Z","signature_b64":"A4Z6Pgh/AQ5axPhEJRVsS2g1ypOVD5YSiOxTwCDXkMEV5UVpxQSZ6qtAN3kRUxIvOnwVE1oVkBWTpofDi1njDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"18dc390fb6005c90c0d3074d6354ce619ecc09a767fc5f7b9bf862268c22a6c4","last_reissued_at":"2026-05-17T23:40:32.272736Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:32.272736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1904.12931","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":"2026-05-17T23:40:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7djnT3++hU+KawilDZnzG7RIJlcOmsAHGqQ9h+PDbaHvSTWZ55u4rbKjY+d4kfeV0qj6DKIcEQMwTy/jXlSICQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:03:51.840684Z"},"content_sha256":"b81143e5eb224754d3fbe7fb70fc8e82f52fc4f9b9a7ad8b8aed224f04a12e4d","schema_version":"1.0","event_id":"sha256:b81143e5eb224754d3fbe7fb70fc8e82f52fc4f9b9a7ad8b8aed224f04a12e4d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:DDODSD5WABOJBQGTA5GWGVGOMG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Detection of Planetary and Stellar Companions to Neighboring Stars via a Combination of Radial Velocity and Direct Imaging Techniques","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Brad D. Carter, Christopher G. Tinney, Duncan J. Wright, Elliott P. Horch, Hugh R.A. Jones, Jeremy Bailey, Jonathan Horner, Lea A. Hirsch, Mark E. Everett, Paul A. Dalba, Robert A. Wittenmyer, R. Paul Butler, Simon J. O'Toole, Stephen R. Kane, Steve B. Howell, Zhexing Li","submitted_at":"2019-04-29T20:06:14Z","abstract_excerpt":"The sensitivity of radial velocity (RV) surveys for exoplanet detection are extending to increasingly long orbital periods, where companions with periods of several years are now being regularly discovered. Companions with orbital periods that exceed the duration of the survey manifest in the data as an incomplete orbit or linear trend, a feature that can either present as the sole detectable companion to the host star, or as an additional signal overlain on the signatures of previously discovered companion(s). A diagnostic that can confirm or constrain scenarios in which the trend is caused b"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.12931","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":"2026-05-17T23:40:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BG3/jZIq3D9ZGr4GZ4Bo5YEPTqETBZKwNXj4D3vfq043umt2LYs6hcAFz924ilkCLCDVq593PPZiFWM0MlvMBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T00:03:51.841270Z"},"content_sha256":"84cfa7c754c1b5f7853dfd9b1784dac998e001858c5e2b56380323a3adb00645","schema_version":"1.0","event_id":"sha256:84cfa7c754c1b5f7853dfd9b1784dac998e001858c5e2b56380323a3adb00645"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DDODSD5WABOJBQGTA5GWGVGOMG/bundle.json","state_url":"https://pith.science/pith/DDODSD5WABOJBQGTA5GWGVGOMG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DDODSD5WABOJBQGTA5GWGVGOMG/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":"2026-05-26T00:03:51Z","links":{"resolver":"https://pith.science/pith/DDODSD5WABOJBQGTA5GWGVGOMG","bundle":"https://pith.science/pith/DDODSD5WABOJBQGTA5GWGVGOMG/bundle.json","state":"https://pith.science/pith/DDODSD5WABOJBQGTA5GWGVGOMG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DDODSD5WABOJBQGTA5GWGVGOMG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:DDODSD5WABOJBQGTA5GWGVGOMG","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":"b842e42e4fe21a11da1ace563166541672d4a80b7f4ee7cd6140a239e7d4902f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-04-29T20:06:14Z","title_canon_sha256":"bd593ab719fb761820da3aa1efe4bc09eefdf9be8ff8df0fb0d674d2e04fa0bd"},"schema_version":"1.0","source":{"id":"1904.12931","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1904.12931","created_at":"2026-05-17T23:40:32Z"},{"alias_kind":"arxiv_version","alias_value":"1904.12931v2","created_at":"2026-05-17T23:40:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.12931","created_at":"2026-05-17T23:40:32Z"},{"alias_kind":"pith_short_12","alias_value":"DDODSD5WABOJ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"DDODSD5WABOJBQGT","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"DDODSD5W","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:84cfa7c754c1b5f7853dfd9b1784dac998e001858c5e2b56380323a3adb00645","target":"graph","created_at":"2026-05-17T23:40:32Z","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 sensitivity of radial velocity (RV) surveys for exoplanet detection are extending to increasingly long orbital periods, where companions with periods of several years are now being regularly discovered. Companions with orbital periods that exceed the duration of the survey manifest in the data as an incomplete orbit or linear trend, a feature that can either present as the sole detectable companion to the host star, or as an additional signal overlain on the signatures of previously discovered companion(s). A diagnostic that can confirm or constrain scenarios in which the trend is caused b","authors_text":"Brad D. Carter, Christopher G. Tinney, Duncan J. Wright, Elliott P. Horch, Hugh R.A. Jones, Jeremy Bailey, Jonathan Horner, Lea A. Hirsch, Mark E. Everett, Paul A. Dalba, Robert A. Wittenmyer, R. Paul Butler, Simon J. O'Toole, Stephen R. Kane, Steve B. Howell, Zhexing Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-04-29T20:06:14Z","title":"Detection of Planetary and Stellar Companions to Neighboring Stars via a Combination of Radial Velocity and Direct Imaging Techniques"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.12931","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:b81143e5eb224754d3fbe7fb70fc8e82f52fc4f9b9a7ad8b8aed224f04a12e4d","target":"record","created_at":"2026-05-17T23:40:32Z","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":"b842e42e4fe21a11da1ace563166541672d4a80b7f4ee7cd6140a239e7d4902f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-04-29T20:06:14Z","title_canon_sha256":"bd593ab719fb761820da3aa1efe4bc09eefdf9be8ff8df0fb0d674d2e04fa0bd"},"schema_version":"1.0","source":{"id":"1904.12931","kind":"arxiv","version":2}},"canonical_sha256":"18dc390fb6005c90c0d3074d6354ce619ecc09a767fc5f7b9bf862268c22a6c4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"18dc390fb6005c90c0d3074d6354ce619ecc09a767fc5f7b9bf862268c22a6c4","first_computed_at":"2026-05-17T23:40:32.272736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:32.272736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A4Z6Pgh/AQ5axPhEJRVsS2g1ypOVD5YSiOxTwCDXkMEV5UVpxQSZ6qtAN3kRUxIvOnwVE1oVkBWTpofDi1njDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:32.273475Z","signed_message":"canonical_sha256_bytes"},"source_id":"1904.12931","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b81143e5eb224754d3fbe7fb70fc8e82f52fc4f9b9a7ad8b8aed224f04a12e4d","sha256:84cfa7c754c1b5f7853dfd9b1784dac998e001858c5e2b56380323a3adb00645"],"state_sha256":"da79caa39ff174cc562130fd1bde2a4607f511bfbc51bf481cb49867e3ad1d0d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dj4vdoC31rtMlu+sKX5XdWT/+rGuqUh/XWPdVYtr1mjzdqN6fT0mOWIH64A8pm37oiRD3qjiw/H8BCIulCbPBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T00:03:51.844734Z","bundle_sha256":"5d10a4b327966861d2ce97a2d666bd31419178e9b6718c0d007787e6ebdec7d4"}}