{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:QASVNM3QQA7YCUMA3BJSOZR7SI","short_pith_number":"pith:QASVNM3Q","canonical_record":{"source":{"id":"1108.4622","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-23T15:00:23Z","cross_cats_sorted":[],"title_canon_sha256":"ea22912f848a42a6323d79044dd505a1ac69f17dc083b6ea58cabc946d766fa2","abstract_canon_sha256":"fa1f7551367469813ed51ecf310924dec3f1b88099da2f99b2d89cbc5b0dd549"},"schema_version":"1.0"},"canonical_sha256":"802556b370803f815180d85327663f9236bd4bc70be933ee88bd5fe8eb108142","source":{"kind":"arxiv","id":"1108.4622","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.4622","created_at":"2026-05-18T02:00:49Z"},{"alias_kind":"arxiv_version","alias_value":"1108.4622v1","created_at":"2026-05-18T02:00:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.4622","created_at":"2026-05-18T02:00:49Z"},{"alias_kind":"pith_short_12","alias_value":"QASVNM3QQA7Y","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QASVNM3QQA7YCUMA","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QASVNM3Q","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:QASVNM3QQA7YCUMA3BJSOZR7SI","target":"record","payload":{"canonical_record":{"source":{"id":"1108.4622","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-23T15:00:23Z","cross_cats_sorted":[],"title_canon_sha256":"ea22912f848a42a6323d79044dd505a1ac69f17dc083b6ea58cabc946d766fa2","abstract_canon_sha256":"fa1f7551367469813ed51ecf310924dec3f1b88099da2f99b2d89cbc5b0dd549"},"schema_version":"1.0"},"canonical_sha256":"802556b370803f815180d85327663f9236bd4bc70be933ee88bd5fe8eb108142","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:49.232077Z","signature_b64":"KMONO+JjrdEyNpXE+/Kt13YjHHS8K8gX+C3YpRLWC8ppLqN8YqrXFWyBk/H9K82orCou1J/4JW1A1He5Y5C5BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"802556b370803f815180d85327663f9236bd4bc70be933ee88bd5fe8eb108142","last_reissued_at":"2026-05-18T02:00:49.231500Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:49.231500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1108.4622","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":"2026-05-18T02:00:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"elZoA1j2XW/weiVonKsZU9BOzM1EdGpm6uHa5aPNjKhv/dRJ919r7u+OULytEz4H6aDIFXRa/Hr/SV/HzXYFAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T06:57:29.259223Z"},"content_sha256":"1e7241d42f7cc9b103636e1fce9f219733f8521850fe36d40733fc12d563c4f7","schema_version":"1.0","event_id":"sha256:1e7241d42f7cc9b103636e1fce9f219733f8521850fe36d40733fc12d563c4f7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:QASVNM3QQA7YCUMA3BJSOZR7SI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A third massive star component in the \\sigma\\ Orionis AB system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"J.A. Caballero, J. Lorenzo, S. Sim\\'on-D\\'iaz","submitted_at":"2011-08-23T15:00:23Z","abstract_excerpt":"We report on the detection of a third massive star component in the \\sigma\\ Orionis AB system, traditionally considered as a binary system. The system has been monitored by the IACOB spectroscopic survey of Northern Massive stars program, obtaining 23 high-resolution FIES@NOT spectra with a time-span of ~2.5 years. The analysis of the radial velocity curves of the two spectroscopic components observed in the spectra has allowed us obtain the orbital parameters of the system, resulting in a high eccentric orbit (e~0.78) with an orbital period of 143.5 +/- 0.5 d. This result implies the actual p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.4622","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":"2026-05-18T02:00:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xhvQw0bwuhMrIIjSJv+LIzXYM0ZC7JRpcJnRGfQgPvbs3wU7+XnncwOpMQ4iGXXi1C9RxemWERmrDtjThRYxDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-21T06:57:29.259783Z"},"content_sha256":"85dca41a635fc2bd790de92196ee39332f89f5369e739834cabf595a02d46465","schema_version":"1.0","event_id":"sha256:85dca41a635fc2bd790de92196ee39332f89f5369e739834cabf595a02d46465"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QASVNM3QQA7YCUMA3BJSOZR7SI/bundle.json","state_url":"https://pith.science/pith/QASVNM3QQA7YCUMA3BJSOZR7SI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QASVNM3QQA7YCUMA3BJSOZR7SI/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":"2026-05-21T06:57:29Z","links":{"resolver":"https://pith.science/pith/QASVNM3QQA7YCUMA3BJSOZR7SI","bundle":"https://pith.science/pith/QASVNM3QQA7YCUMA3BJSOZR7SI/bundle.json","state":"https://pith.science/pith/QASVNM3QQA7YCUMA3BJSOZR7SI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QASVNM3QQA7YCUMA3BJSOZR7SI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:QASVNM3QQA7YCUMA3BJSOZR7SI","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":"fa1f7551367469813ed51ecf310924dec3f1b88099da2f99b2d89cbc5b0dd549","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-23T15:00:23Z","title_canon_sha256":"ea22912f848a42a6323d79044dd505a1ac69f17dc083b6ea58cabc946d766fa2"},"schema_version":"1.0","source":{"id":"1108.4622","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1108.4622","created_at":"2026-05-18T02:00:49Z"},{"alias_kind":"arxiv_version","alias_value":"1108.4622v1","created_at":"2026-05-18T02:00:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.4622","created_at":"2026-05-18T02:00:49Z"},{"alias_kind":"pith_short_12","alias_value":"QASVNM3QQA7Y","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"QASVNM3QQA7YCUMA","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"QASVNM3Q","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:85dca41a635fc2bd790de92196ee39332f89f5369e739834cabf595a02d46465","target":"graph","created_at":"2026-05-18T02:00:49Z","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 report on the detection of a third massive star component in the \\sigma\\ Orionis AB system, traditionally considered as a binary system. The system has been monitored by the IACOB spectroscopic survey of Northern Massive stars program, obtaining 23 high-resolution FIES@NOT spectra with a time-span of ~2.5 years. The analysis of the radial velocity curves of the two spectroscopic components observed in the spectra has allowed us obtain the orbital parameters of the system, resulting in a high eccentric orbit (e~0.78) with an orbital period of 143.5 +/- 0.5 d. This result implies the actual p","authors_text":"J.A. Caballero, J. Lorenzo, S. Sim\\'on-D\\'iaz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-23T15:00:23Z","title":"A third massive star component in the \\sigma\\ Orionis AB system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.4622","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":"sha256:1e7241d42f7cc9b103636e1fce9f219733f8521850fe36d40733fc12d563c4f7","target":"record","created_at":"2026-05-18T02:00:49Z","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":"fa1f7551367469813ed51ecf310924dec3f1b88099da2f99b2d89cbc5b0dd549","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2011-08-23T15:00:23Z","title_canon_sha256":"ea22912f848a42a6323d79044dd505a1ac69f17dc083b6ea58cabc946d766fa2"},"schema_version":"1.0","source":{"id":"1108.4622","kind":"arxiv","version":1}},"canonical_sha256":"802556b370803f815180d85327663f9236bd4bc70be933ee88bd5fe8eb108142","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"802556b370803f815180d85327663f9236bd4bc70be933ee88bd5fe8eb108142","first_computed_at":"2026-05-18T02:00:49.231500Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:00:49.231500Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KMONO+JjrdEyNpXE+/Kt13YjHHS8K8gX+C3YpRLWC8ppLqN8YqrXFWyBk/H9K82orCou1J/4JW1A1He5Y5C5BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:00:49.232077Z","signed_message":"canonical_sha256_bytes"},"source_id":"1108.4622","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1e7241d42f7cc9b103636e1fce9f219733f8521850fe36d40733fc12d563c4f7","sha256:85dca41a635fc2bd790de92196ee39332f89f5369e739834cabf595a02d46465"],"state_sha256":"dd7bebfbeb41336ab7fb30d308376f6bf9c7ffba221310baf2d697e9b2241d33"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N+6FJJAc6A1vVe8aNWA99jMbkjYIHXqYqrNNjaahEfZHMkMn1jSziqDnvmKoleDQvfQgbxDXdiwwHCldKBrjCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-21T06:57:29.262391Z","bundle_sha256":"0ebec521df78ac2d7a3638b7b7af3f5871a1b5d8ba78c1b131f70d72148a509f"}}