{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2009:FMCWFRJP6NQ3ZK34WQLXBCIQ3D","short_pith_number":"pith:FMCWFRJP","canonical_record":{"source":{"id":"0908.3751","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-08-26T08:05:44Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"3cc60887e6a6cbfdc5e6bf671a74f7838146705ee12f5464b7dd41f6d3823909","abstract_canon_sha256":"c283cb8028ef9a9b00b81b941a9281a045c202b344f2ea3c951bd33905e78a38"},"schema_version":"1.0"},"canonical_sha256":"2b0562c52ff361bcab7cb417708910d8e9f0cf6367d0959b4a3e9198d3e878c3","source":{"kind":"arxiv","id":"0908.3751","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.3751","created_at":"2026-05-18T02:12:22Z"},{"alias_kind":"arxiv_version","alias_value":"0908.3751v1","created_at":"2026-05-18T02:12:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.3751","created_at":"2026-05-18T02:12:22Z"},{"alias_kind":"pith_short_12","alias_value":"FMCWFRJP6NQ3","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"FMCWFRJP6NQ3ZK34","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"FMCWFRJP","created_at":"2026-05-18T12:25:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2009:FMCWFRJP6NQ3ZK34WQLXBCIQ3D","target":"record","payload":{"canonical_record":{"source":{"id":"0908.3751","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-08-26T08:05:44Z","cross_cats_sorted":["astro-ph.EP"],"title_canon_sha256":"3cc60887e6a6cbfdc5e6bf671a74f7838146705ee12f5464b7dd41f6d3823909","abstract_canon_sha256":"c283cb8028ef9a9b00b81b941a9281a045c202b344f2ea3c951bd33905e78a38"},"schema_version":"1.0"},"canonical_sha256":"2b0562c52ff361bcab7cb417708910d8e9f0cf6367d0959b4a3e9198d3e878c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:12:22.921468Z","signature_b64":"wOZIf6m0CR372z4HQHZ9K1LLtY3FfrROX7DRnACLAsL0Vtg0Usw0LAvJ6XbWn8pxQvMldog8VqpcHWSUp9KQAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2b0562c52ff361bcab7cb417708910d8e9f0cf6367d0959b4a3e9198d3e878c3","last_reissued_at":"2026-05-18T02:12:22.920662Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:12:22.920662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"0908.3751","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":"2026-05-18T02:12:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hb+pqqUpguzNdOrjGft6Rgk3LupCrhCb48G37eSDybavE4GHjWY8NYJfXQ4uDTgpEIiMz1/hd3up06q48yJYBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T02:44:48.170867Z"},"content_sha256":"c0516f5027fa53c0dcebe483f17398b5d3181d89f9c6b701e9f26b8296cbdc9c","schema_version":"1.0","event_id":"sha256:c0516f5027fa53c0dcebe483f17398b5d3181d89f9c6b701e9f26b8296cbdc9c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2009:FMCWFRJP6NQ3ZK34WQLXBCIQ3D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Infrared radial velocities of vB 10","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.EP"],"primary_cat":"astro-ph.SR","authors_text":"C. del Burgo (Dublin Inst. Advanced Studies), CSIC-INTA), E. L. Martin (CAB, M. M. Montgomery (Univ. Central Florida), M. R. Zapatero Osorio (CAB, R. Deshpande (Univ. Central Florida)","submitted_at":"2009-08-26T08:05:44Z","abstract_excerpt":"We present radial velocities of the M8V-type, very low-mass star vB 10 that have been obtained at four different epochs of observations between 2001 and 2008. We use high-resolution (R ~ 20,000) near-infrared (J-band) spectra taken with the NIRSPEC instrument on the Keck II telescope. Our data suggest that vB 10 shows radial velocity variability with an amplitude of ~1 km/s, a result that is consistent with the recent finding of a massive planet companion around the star by Pravdo & Shaklan (2009). More velocity measurements and a better sampling of the orbital phase are required to precisely "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.3751","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":"2026-05-18T02:12:22Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GihwjKjmYU2aqxs2BV4tZdFLrwN9YiFjsgTqSeX0yfG3sn/xpaLstj6D/G0FB7QSn8dTn7TOsVmwD6HjIr5sBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-24T02:44:48.171207Z"},"content_sha256":"a2b06ff72eebda2221a7d081d3afe11dee7dfaaf664228d468f6f4127305f325","schema_version":"1.0","event_id":"sha256:a2b06ff72eebda2221a7d081d3afe11dee7dfaaf664228d468f6f4127305f325"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FMCWFRJP6NQ3ZK34WQLXBCIQ3D/bundle.json","state_url":"https://pith.science/pith/FMCWFRJP6NQ3ZK34WQLXBCIQ3D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FMCWFRJP6NQ3ZK34WQLXBCIQ3D/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":"2026-06-24T02:44:48Z","links":{"resolver":"https://pith.science/pith/FMCWFRJP6NQ3ZK34WQLXBCIQ3D","bundle":"https://pith.science/pith/FMCWFRJP6NQ3ZK34WQLXBCIQ3D/bundle.json","state":"https://pith.science/pith/FMCWFRJP6NQ3ZK34WQLXBCIQ3D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FMCWFRJP6NQ3ZK34WQLXBCIQ3D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:FMCWFRJP6NQ3ZK34WQLXBCIQ3D","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":"c283cb8028ef9a9b00b81b941a9281a045c202b344f2ea3c951bd33905e78a38","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-08-26T08:05:44Z","title_canon_sha256":"3cc60887e6a6cbfdc5e6bf671a74f7838146705ee12f5464b7dd41f6d3823909"},"schema_version":"1.0","source":{"id":"0908.3751","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.3751","created_at":"2026-05-18T02:12:22Z"},{"alias_kind":"arxiv_version","alias_value":"0908.3751v1","created_at":"2026-05-18T02:12:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.3751","created_at":"2026-05-18T02:12:22Z"},{"alias_kind":"pith_short_12","alias_value":"FMCWFRJP6NQ3","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_16","alias_value":"FMCWFRJP6NQ3ZK34","created_at":"2026-05-18T12:25:59Z"},{"alias_kind":"pith_short_8","alias_value":"FMCWFRJP","created_at":"2026-05-18T12:25:59Z"}],"graph_snapshots":[{"event_id":"sha256:a2b06ff72eebda2221a7d081d3afe11dee7dfaaf664228d468f6f4127305f325","target":"graph","created_at":"2026-05-18T02:12:22Z","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 of the M8V-type, very low-mass star vB 10 that have been obtained at four different epochs of observations between 2001 and 2008. We use high-resolution (R ~ 20,000) near-infrared (J-band) spectra taken with the NIRSPEC instrument on the Keck II telescope. Our data suggest that vB 10 shows radial velocity variability with an amplitude of ~1 km/s, a result that is consistent with the recent finding of a massive planet companion around the star by Pravdo & Shaklan (2009). More velocity measurements and a better sampling of the orbital phase are required to precisely ","authors_text":"C. del Burgo (Dublin Inst. Advanced Studies), CSIC-INTA), E. L. Martin (CAB, M. M. Montgomery (Univ. Central Florida), M. R. Zapatero Osorio (CAB, R. Deshpande (Univ. Central Florida)","cross_cats":["astro-ph.EP"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-08-26T08:05:44Z","title":"Infrared radial velocities of vB 10"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.3751","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:c0516f5027fa53c0dcebe483f17398b5d3181d89f9c6b701e9f26b8296cbdc9c","target":"record","created_at":"2026-05-18T02:12:22Z","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":"c283cb8028ef9a9b00b81b941a9281a045c202b344f2ea3c951bd33905e78a38","cross_cats_sorted":["astro-ph.EP"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2009-08-26T08:05:44Z","title_canon_sha256":"3cc60887e6a6cbfdc5e6bf671a74f7838146705ee12f5464b7dd41f6d3823909"},"schema_version":"1.0","source":{"id":"0908.3751","kind":"arxiv","version":1}},"canonical_sha256":"2b0562c52ff361bcab7cb417708910d8e9f0cf6367d0959b4a3e9198d3e878c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2b0562c52ff361bcab7cb417708910d8e9f0cf6367d0959b4a3e9198d3e878c3","first_computed_at":"2026-05-18T02:12:22.920662Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:22.920662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wOZIf6m0CR372z4HQHZ9K1LLtY3FfrROX7DRnACLAsL0Vtg0Usw0LAvJ6XbWn8pxQvMldog8VqpcHWSUp9KQAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:22.921468Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.3751","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c0516f5027fa53c0dcebe483f17398b5d3181d89f9c6b701e9f26b8296cbdc9c","sha256:a2b06ff72eebda2221a7d081d3afe11dee7dfaaf664228d468f6f4127305f325"],"state_sha256":"c3f4cad2078d1fd2777cdd3ce5e6ee4ac6dc3af4b55959dec69dd013da19c5db"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8VwJSi8CzuO9DJ2Ytlrv8n6O1AxBUs+QHNuzukvf1BCOi19n4uK8cWhjgASLr0RmpM0gB77jJ7ryGPoP/aeADQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-24T02:44:48.173194Z","bundle_sha256":"8bf867d2a6791b805cb9563934853535de6813bef6dbbb0951dc18745f8a516c"}}