{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:QXYTAD2AD23EOXOUVW3DDJ6HQG","short_pith_number":"pith:QXYTAD2A","canonical_record":{"source":{"id":"1001.3892","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-21T21:49:08Z","cross_cats_sorted":[],"title_canon_sha256":"35c8649fc0b952f6dd5a1c15b2e2919cf2d4f5d7304035d5f5099de03b21df76","abstract_canon_sha256":"4fedb45581f036643f8c76473ddb81b8722d8b4bc1dba3bd41ebfcb163c3ccd6"},"schema_version":"1.0"},"canonical_sha256":"85f1300f401eb6475dd4adb631a7c7819b8b73688245a2df774e7ebd8ba4aa33","source":{"kind":"arxiv","id":"1001.3892","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.3892","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"arxiv_version","alias_value":"1001.3892v1","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.3892","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"pith_short_12","alias_value":"QXYTAD2AD23E","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"QXYTAD2AD23EOXOU","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"QXYTAD2A","created_at":"2026-05-18T12:26:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:QXYTAD2AD23EOXOUVW3DDJ6HQG","target":"record","payload":{"canonical_record":{"source":{"id":"1001.3892","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-21T21:49:08Z","cross_cats_sorted":[],"title_canon_sha256":"35c8649fc0b952f6dd5a1c15b2e2919cf2d4f5d7304035d5f5099de03b21df76","abstract_canon_sha256":"4fedb45581f036643f8c76473ddb81b8722d8b4bc1dba3bd41ebfcb163c3ccd6"},"schema_version":"1.0"},"canonical_sha256":"85f1300f401eb6475dd4adb631a7c7819b8b73688245a2df774e7ebd8ba4aa33","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:09:31.290980Z","signature_b64":"CWu2B+OsGY0wCUTMZDT4q8xpxKVO7haxo8BvhXJ4c4fhK398ZEu6QWNdp9AAXWKWBoUf7YOVk0q7dGR6lJWSAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"85f1300f401eb6475dd4adb631a7c7819b8b73688245a2df774e7ebd8ba4aa33","last_reissued_at":"2026-05-18T02:09:31.290388Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:09:31.290388Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1001.3892","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":"2026-05-18T02:09:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"io44OVFXVSR1qs/CNgK5M1Jbvk0lGcIx9L4wgpYUyFaJd2QrMxc8GZv4GerZVLfrac+x0neqHj7uwjkt/C7VBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:48:28.261836Z"},"content_sha256":"22c0578d9e87b3b83db1b7111e2cd1f8bbd97ab02a7dcdc5114388f0e67a0969","schema_version":"1.0","event_id":"sha256:22c0578d9e87b3b83db1b7111e2cd1f8bbd97ab02a7dcdc5114388f0e67a0969"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:QXYTAD2AD23EOXOUVW3DDJ6HQG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On the multiplicity of the zero-age main-sequence O star Herschel 36","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Alfredo Sota, Christian Moni Bidin, Emilio J. Alfaro, Jesus Maiz Apellaniz, Julia I. Arias, Nidia I. Morrell, Nolan R. Walborn, Roberto C. Gamen, Rodolfo H. Barba","submitted_at":"2010-01-21T21:49:08Z","abstract_excerpt":"We present the analysis of high-resolution optical spectroscopic observations of the zero-age main-sequence O star Herschel 36 spanning six years. This star is definitely a multiple system, with at least three components detected in its spectrum. Based on our radial-velocity (RV) study, we propose a picture of a close massive binary and a more distant companion, most probably in wide orbit about each other. The orbital solution for the binary, whose components we identify as O9 V and B0.5 V, is characterized by a period of 1.5415 +/- 0.0006 days. With a spectral type O7.5 V, the third body is "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.3892","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":"2026-05-18T02:09:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Dfpi4/syubWXASMJPpKDYLkxbD0pLXsZiBSGZ97/c6bPpfvu0wTv91E+sF3C0Yvgc0W1oaKA2hFKA3FLSYsQAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T03:48:28.262187Z"},"content_sha256":"934c66a220c27390595ca44e770bc26d7e3425e3ee1fbf25ca97acb6911b4885","schema_version":"1.0","event_id":"sha256:934c66a220c27390595ca44e770bc26d7e3425e3ee1fbf25ca97acb6911b4885"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QXYTAD2AD23EOXOUVW3DDJ6HQG/bundle.json","state_url":"https://pith.science/pith/QXYTAD2AD23EOXOUVW3DDJ6HQG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QXYTAD2AD23EOXOUVW3DDJ6HQG/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":"2026-06-01T03:48:28Z","links":{"resolver":"https://pith.science/pith/QXYTAD2AD23EOXOUVW3DDJ6HQG","bundle":"https://pith.science/pith/QXYTAD2AD23EOXOUVW3DDJ6HQG/bundle.json","state":"https://pith.science/pith/QXYTAD2AD23EOXOUVW3DDJ6HQG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QXYTAD2AD23EOXOUVW3DDJ6HQG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:QXYTAD2AD23EOXOUVW3DDJ6HQG","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":"4fedb45581f036643f8c76473ddb81b8722d8b4bc1dba3bd41ebfcb163c3ccd6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-21T21:49:08Z","title_canon_sha256":"35c8649fc0b952f6dd5a1c15b2e2919cf2d4f5d7304035d5f5099de03b21df76"},"schema_version":"1.0","source":{"id":"1001.3892","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1001.3892","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"arxiv_version","alias_value":"1001.3892v1","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1001.3892","created_at":"2026-05-18T02:09:31Z"},{"alias_kind":"pith_short_12","alias_value":"QXYTAD2AD23E","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_16","alias_value":"QXYTAD2AD23EOXOU","created_at":"2026-05-18T12:26:13Z"},{"alias_kind":"pith_short_8","alias_value":"QXYTAD2A","created_at":"2026-05-18T12:26:13Z"}],"graph_snapshots":[{"event_id":"sha256:934c66a220c27390595ca44e770bc26d7e3425e3ee1fbf25ca97acb6911b4885","target":"graph","created_at":"2026-05-18T02:09:31Z","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 the analysis of high-resolution optical spectroscopic observations of the zero-age main-sequence O star Herschel 36 spanning six years. This star is definitely a multiple system, with at least three components detected in its spectrum. Based on our radial-velocity (RV) study, we propose a picture of a close massive binary and a more distant companion, most probably in wide orbit about each other. The orbital solution for the binary, whose components we identify as O9 V and B0.5 V, is characterized by a period of 1.5415 +/- 0.0006 days. With a spectral type O7.5 V, the third body is ","authors_text":"Alfredo Sota, Christian Moni Bidin, Emilio J. Alfaro, Jesus Maiz Apellaniz, Julia I. Arias, Nidia I. Morrell, Nolan R. Walborn, Roberto C. Gamen, Rodolfo H. Barba","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-21T21:49:08Z","title":"On the multiplicity of the zero-age main-sequence O star Herschel 36"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1001.3892","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":"sha256:22c0578d9e87b3b83db1b7111e2cd1f8bbd97ab02a7dcdc5114388f0e67a0969","target":"record","created_at":"2026-05-18T02:09:31Z","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":"4fedb45581f036643f8c76473ddb81b8722d8b4bc1dba3bd41ebfcb163c3ccd6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-01-21T21:49:08Z","title_canon_sha256":"35c8649fc0b952f6dd5a1c15b2e2919cf2d4f5d7304035d5f5099de03b21df76"},"schema_version":"1.0","source":{"id":"1001.3892","kind":"arxiv","version":1}},"canonical_sha256":"85f1300f401eb6475dd4adb631a7c7819b8b73688245a2df774e7ebd8ba4aa33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"85f1300f401eb6475dd4adb631a7c7819b8b73688245a2df774e7ebd8ba4aa33","first_computed_at":"2026-05-18T02:09:31.290388Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:09:31.290388Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CWu2B+OsGY0wCUTMZDT4q8xpxKVO7haxo8BvhXJ4c4fhK398ZEu6QWNdp9AAXWKWBoUf7YOVk0q7dGR6lJWSAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:09:31.290980Z","signed_message":"canonical_sha256_bytes"},"source_id":"1001.3892","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:22c0578d9e87b3b83db1b7111e2cd1f8bbd97ab02a7dcdc5114388f0e67a0969","sha256:934c66a220c27390595ca44e770bc26d7e3425e3ee1fbf25ca97acb6911b4885"],"state_sha256":"a92b75518133b4b244342ebb2db44cebd495e374d228276bf773451c4d9ac904"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KQqbEn473uc6pMpPn+enpJa7TxvSEv58577EOrEcG/zdCq1144xntHN5bZJEtlTcJIpe74Q2zf0fIz7Hc6WSCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T03:48:28.264167Z","bundle_sha256":"ad0a4d1c5bcb4f76f6cf479fc99e445a8f0f13cfc820ce3cd51f85a471c0636d"}}