{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:FZVI5WUAZIOAF2QNXE2HYJQU2A","short_pith_number":"pith:FZVI5WUA","canonical_record":{"source":{"id":"1307.2243","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-08T20:00:05Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"38457a8e18f0ba4e8b2c12c33f0de1bf7b5b1f6dd724d7c6fb9a153cf0788131","abstract_canon_sha256":"9de3c4b8ab7b84fb3ca9b65334f115c6cf84c07f2955a06d2d7c8f7acf989500"},"schema_version":"1.0"},"canonical_sha256":"2e6a8eda80ca1c02ea0db9347c2614d01fde6d7b219a46dd4512fc3748489b64","source":{"kind":"arxiv","id":"1307.2243","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2243","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2243v1","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2243","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"pith_short_12","alias_value":"FZVI5WUAZIOA","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FZVI5WUAZIOAF2QN","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FZVI5WUA","created_at":"2026-05-18T12:27:45Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:FZVI5WUAZIOAF2QNXE2HYJQU2A","target":"record","payload":{"canonical_record":{"source":{"id":"1307.2243","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-08T20:00:05Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"38457a8e18f0ba4e8b2c12c33f0de1bf7b5b1f6dd724d7c6fb9a153cf0788131","abstract_canon_sha256":"9de3c4b8ab7b84fb3ca9b65334f115c6cf84c07f2955a06d2d7c8f7acf989500"},"schema_version":"1.0"},"canonical_sha256":"2e6a8eda80ca1c02ea0db9347c2614d01fde6d7b219a46dd4512fc3748489b64","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:48:58.558646Z","signature_b64":"bSnqpxWMN/iA229q05gAINDgPnlyN9sO+g0ClHJ3ECcUyQqrMUDdj1F1qRWUY6TGUjMAjcAWl0RowtrHaEX3DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2e6a8eda80ca1c02ea0db9347c2614d01fde6d7b219a46dd4512fc3748489b64","last_reissued_at":"2026-05-18T01:48:58.558186Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:48:58.558186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1307.2243","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":"2026-05-18T01:48:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V89VhINY8WjH2p6xZAhxx1X+7iQh9NtrslR6FJg2flFWOLxhQ5yR83oMV5UuNRsFPIxMpEkR7xVysRg1txBDCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:41:03.757365Z"},"content_sha256":"47add1dd9a5fbcf6257053a347f22958c5f4557520cf65571d0040e64b546546","schema_version":"1.0","event_id":"sha256:47add1dd9a5fbcf6257053a347f22958c5f4557520cf65571d0040e64b546546"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:FZVI5WUAZIOAF2QNXE2HYJQU2A","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Multiplicity Census of Intermediate-Mass Stars in Scorpius-Centaurus","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Alexis Brandeker, David Lafreniere, John E. Gizis, Julien H. Girard, Mariangela Bonavita, Markus Janson, Ray Jayawardhana","submitted_at":"2013-07-08T20:00:05Z","abstract_excerpt":"Stellar multiplicity properties have been studied for much of the range from the lowest to the highest stellar masses, but intermediate-mass stars from F-type to late A-type have received relatively little attention. Here we report on a Gemini/NICI snapshot imaging survey of 138 such stars in the young Scorpius-Centaurus (Sco-Cen) region, for the purpose of studying multiplicity with sensitivity down to planetary masses at wide separations. In addition to two brown dwarfs and a companion straddling the hydrogen burning limit we reported previously, here we present 26 new stellar companions and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2243","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":"2026-05-18T01:48:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DIXKXLsoxWprxTm3DHX6UbkyUyXdG1Ei0dj3ajwSiYbF6I0DfrAbH1L9llxa9xrelHKltUH8pCtgjWAREf/lAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T22:41:03.757721Z"},"content_sha256":"37e6f3ceb7a4d69831b0c6fb513761b4ef78c3695a052bab2d589a54357c8944","schema_version":"1.0","event_id":"sha256:37e6f3ceb7a4d69831b0c6fb513761b4ef78c3695a052bab2d589a54357c8944"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FZVI5WUAZIOAF2QNXE2HYJQU2A/bundle.json","state_url":"https://pith.science/pith/FZVI5WUAZIOAF2QNXE2HYJQU2A/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FZVI5WUAZIOAF2QNXE2HYJQU2A/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":"2026-06-01T22:41:03Z","links":{"resolver":"https://pith.science/pith/FZVI5WUAZIOAF2QNXE2HYJQU2A","bundle":"https://pith.science/pith/FZVI5WUAZIOAF2QNXE2HYJQU2A/bundle.json","state":"https://pith.science/pith/FZVI5WUAZIOAF2QNXE2HYJQU2A/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FZVI5WUAZIOAF2QNXE2HYJQU2A/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:FZVI5WUAZIOAF2QNXE2HYJQU2A","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":"9de3c4b8ab7b84fb3ca9b65334f115c6cf84c07f2955a06d2d7c8f7acf989500","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-08T20:00:05Z","title_canon_sha256":"38457a8e18f0ba4e8b2c12c33f0de1bf7b5b1f6dd724d7c6fb9a153cf0788131"},"schema_version":"1.0","source":{"id":"1307.2243","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1307.2243","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"arxiv_version","alias_value":"1307.2243v1","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1307.2243","created_at":"2026-05-18T01:48:58Z"},{"alias_kind":"pith_short_12","alias_value":"FZVI5WUAZIOA","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_16","alias_value":"FZVI5WUAZIOAF2QN","created_at":"2026-05-18T12:27:45Z"},{"alias_kind":"pith_short_8","alias_value":"FZVI5WUA","created_at":"2026-05-18T12:27:45Z"}],"graph_snapshots":[{"event_id":"sha256:37e6f3ceb7a4d69831b0c6fb513761b4ef78c3695a052bab2d589a54357c8944","target":"graph","created_at":"2026-05-18T01:48:58Z","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":"Stellar multiplicity properties have been studied for much of the range from the lowest to the highest stellar masses, but intermediate-mass stars from F-type to late A-type have received relatively little attention. Here we report on a Gemini/NICI snapshot imaging survey of 138 such stars in the young Scorpius-Centaurus (Sco-Cen) region, for the purpose of studying multiplicity with sensitivity down to planetary masses at wide separations. In addition to two brown dwarfs and a companion straddling the hydrogen burning limit we reported previously, here we present 26 new stellar companions and","authors_text":"Alexis Brandeker, David Lafreniere, John E. Gizis, Julien H. Girard, Mariangela Bonavita, Markus Janson, Ray Jayawardhana","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-08T20:00:05Z","title":"A Multiplicity Census of Intermediate-Mass Stars in Scorpius-Centaurus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1307.2243","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":"sha256:47add1dd9a5fbcf6257053a347f22958c5f4557520cf65571d0040e64b546546","target":"record","created_at":"2026-05-18T01:48:58Z","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":"9de3c4b8ab7b84fb3ca9b65334f115c6cf84c07f2955a06d2d7c8f7acf989500","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-07-08T20:00:05Z","title_canon_sha256":"38457a8e18f0ba4e8b2c12c33f0de1bf7b5b1f6dd724d7c6fb9a153cf0788131"},"schema_version":"1.0","source":{"id":"1307.2243","kind":"arxiv","version":1}},"canonical_sha256":"2e6a8eda80ca1c02ea0db9347c2614d01fde6d7b219a46dd4512fc3748489b64","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e6a8eda80ca1c02ea0db9347c2614d01fde6d7b219a46dd4512fc3748489b64","first_computed_at":"2026-05-18T01:48:58.558186Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:48:58.558186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bSnqpxWMN/iA229q05gAINDgPnlyN9sO+g0ClHJ3ECcUyQqrMUDdj1F1qRWUY6TGUjMAjcAWl0RowtrHaEX3DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:48:58.558646Z","signed_message":"canonical_sha256_bytes"},"source_id":"1307.2243","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:47add1dd9a5fbcf6257053a347f22958c5f4557520cf65571d0040e64b546546","sha256:37e6f3ceb7a4d69831b0c6fb513761b4ef78c3695a052bab2d589a54357c8944"],"state_sha256":"ea7dd8ab850734f1dbedd28ac7b4842fff84f68256b019696c984c17e981fc9c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z/Xx7epTPs8pc/wHE+VOwrItsx2i7pdQZ3kI0XSvOwptUjpLs3pC5PjuXBK0uj6tUJdn5Wb40b+Pf9fPaTRcCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T22:41:03.759573Z","bundle_sha256":"7f7695486e289f65cd553a0a43fb011e211a5f4ccf5863769766fb22215e3758"}}