{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:2VTQ47XVFH3Z36NMDCOUZ7PB42","short_pith_number":"pith:2VTQ47XV","canonical_record":{"source":{"id":"2206.09281","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-18T20:58:41Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"8542d2ac63be09602531fdca3b9ed16aa9440588a6584b25ceddb72a0b0ed2ed","abstract_canon_sha256":"d2e746fdb5f0b4fdb02ea886e486024c0d5b21f94564347e818892165faa9ef8"},"schema_version":"1.0"},"canonical_sha256":"d5670e7ef529f79df9ac189d4cfde1e6a8f803c5d0fdce4a9ff7eedb55134720","source":{"kind":"arxiv","id":"2206.09281","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.09281","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"arxiv_version","alias_value":"2206.09281v1","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.09281","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"pith_short_12","alias_value":"2VTQ47XVFH3Z","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"pith_short_16","alias_value":"2VTQ47XVFH3Z36NM","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"pith_short_8","alias_value":"2VTQ47XV","created_at":"2026-07-05T04:48:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:2VTQ47XVFH3Z36NMDCOUZ7PB42","target":"record","payload":{"canonical_record":{"source":{"id":"2206.09281","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-18T20:58:41Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"8542d2ac63be09602531fdca3b9ed16aa9440588a6584b25ceddb72a0b0ed2ed","abstract_canon_sha256":"d2e746fdb5f0b4fdb02ea886e486024c0d5b21f94564347e818892165faa9ef8"},"schema_version":"1.0"},"canonical_sha256":"d5670e7ef529f79df9ac189d4cfde1e6a8f803c5d0fdce4a9ff7eedb55134720","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:48:56.392479Z","signature_b64":"XNkcpVP7kg1VqHEZoTp3wY1HhrjIDAtEI2z5NgUQkbf0iK9jVnQjKKtPnN1+TMLx4N25Hp/5bX5JlHBvLZ7nDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5670e7ef529f79df9ac189d4cfde1e6a8f803c5d0fdce4a9ff7eedb55134720","last_reissued_at":"2026-07-05T04:48:56.392109Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:48:56.392109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2206.09281","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":"2026-07-05T04:48:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kzrisLqRqeTYb2hCLes/h56J7vlVxBZW9B5d9NidIIgtLN0nTd/1BeFqdoJ4teHNQcn3DkpD0wFlqh2FUuxDCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T13:08:13.534436Z"},"content_sha256":"773a03643dbb5d8e30de4c4ea4e09e7a9ae8126cc9a4d7fa2c6d6d83593d974b","schema_version":"1.0","event_id":"sha256:773a03643dbb5d8e30de4c4ea4e09e7a9ae8126cc9a4d7fa2c6d6d83593d974b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:2VTQ47XVFH3Z36NMDCOUZ7PB42","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Kinematics of the Central Stars Powering Bowshock Nebulae and the Large Multiplicity Fraction of Runaway OB Stars","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"Henry A. Kobulnicky, William T. Chick","submitted_at":"2022-06-18T20:58:41Z","abstract_excerpt":"OB stars powering stellar bowshock nebulae (SBNe) have been presumed to have large peculiar velocities. We measured peculiar velocities of SBN central stars to assess their kinematics relative to the general O star population using $Gaia$ EDR3 data for 267 SBN central stars and a sample of 455 Galactic O stars to derive projected velocities $v_{\\rm 2D}$. For a subset of each sample we obtained new optical spectroscopy to measure radial velocities and identify multiple-star systems. We find a minimum multiplicity fraction of 36$\\pm$6% among SBN central stars, consistent with $>$28% among runawa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.09281","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2206.09281/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:48:56Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7XaGuPoWL6xQYGieoa5YpegtS3wlqEndmiTOCSFFdiOoRxODGiSsDSJKzBJHyJmXv9dF8HVpZ0RVPF6JlitCAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T13:08:13.535375Z"},"content_sha256":"14f594d1a4d64017b237b4426ba5621deecb98cc6c0d1724b49225bd5642a4ab","schema_version":"1.0","event_id":"sha256:14f594d1a4d64017b237b4426ba5621deecb98cc6c0d1724b49225bd5642a4ab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2VTQ47XVFH3Z36NMDCOUZ7PB42/bundle.json","state_url":"https://pith.science/pith/2VTQ47XVFH3Z36NMDCOUZ7PB42/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2VTQ47XVFH3Z36NMDCOUZ7PB42/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":"2026-08-02T13:08:13Z","links":{"resolver":"https://pith.science/pith/2VTQ47XVFH3Z36NMDCOUZ7PB42","bundle":"https://pith.science/pith/2VTQ47XVFH3Z36NMDCOUZ7PB42/bundle.json","state":"https://pith.science/pith/2VTQ47XVFH3Z36NMDCOUZ7PB42/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2VTQ47XVFH3Z36NMDCOUZ7PB42/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:2VTQ47XVFH3Z36NMDCOUZ7PB42","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":"d2e746fdb5f0b4fdb02ea886e486024c0d5b21f94564347e818892165faa9ef8","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-18T20:58:41Z","title_canon_sha256":"8542d2ac63be09602531fdca3b9ed16aa9440588a6584b25ceddb72a0b0ed2ed"},"schema_version":"1.0","source":{"id":"2206.09281","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.09281","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"arxiv_version","alias_value":"2206.09281v1","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.09281","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"pith_short_12","alias_value":"2VTQ47XVFH3Z","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"pith_short_16","alias_value":"2VTQ47XVFH3Z36NM","created_at":"2026-07-05T04:48:56Z"},{"alias_kind":"pith_short_8","alias_value":"2VTQ47XV","created_at":"2026-07-05T04:48:56Z"}],"graph_snapshots":[{"event_id":"sha256:14f594d1a4d64017b237b4426ba5621deecb98cc6c0d1724b49225bd5642a4ab","target":"graph","created_at":"2026-07-05T04:48:56Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2206.09281/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"OB stars powering stellar bowshock nebulae (SBNe) have been presumed to have large peculiar velocities. We measured peculiar velocities of SBN central stars to assess their kinematics relative to the general O star population using $Gaia$ EDR3 data for 267 SBN central stars and a sample of 455 Galactic O stars to derive projected velocities $v_{\\rm 2D}$. For a subset of each sample we obtained new optical spectroscopy to measure radial velocities and identify multiple-star systems. We find a minimum multiplicity fraction of 36$\\pm$6% among SBN central stars, consistent with $>$28% among runawa","authors_text":"Henry A. Kobulnicky, William T. Chick","cross_cats":["astro-ph.GA"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-18T20:58:41Z","title":"Kinematics of the Central Stars Powering Bowshock Nebulae and the Large Multiplicity Fraction of Runaway OB Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.09281","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":"sha256:773a03643dbb5d8e30de4c4ea4e09e7a9ae8126cc9a4d7fa2c6d6d83593d974b","target":"record","created_at":"2026-07-05T04:48:56Z","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":"d2e746fdb5f0b4fdb02ea886e486024c0d5b21f94564347e818892165faa9ef8","cross_cats_sorted":["astro-ph.GA"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2022-06-18T20:58:41Z","title_canon_sha256":"8542d2ac63be09602531fdca3b9ed16aa9440588a6584b25ceddb72a0b0ed2ed"},"schema_version":"1.0","source":{"id":"2206.09281","kind":"arxiv","version":1}},"canonical_sha256":"d5670e7ef529f79df9ac189d4cfde1e6a8f803c5d0fdce4a9ff7eedb55134720","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5670e7ef529f79df9ac189d4cfde1e6a8f803c5d0fdce4a9ff7eedb55134720","first_computed_at":"2026-07-05T04:48:56.392109Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:48:56.392109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"XNkcpVP7kg1VqHEZoTp3wY1HhrjIDAtEI2z5NgUQkbf0iK9jVnQjKKtPnN1+TMLx4N25Hp/5bX5JlHBvLZ7nDg==","signature_status":"signed_v1","signed_at":"2026-07-05T04:48:56.392479Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.09281","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:773a03643dbb5d8e30de4c4ea4e09e7a9ae8126cc9a4d7fa2c6d6d83593d974b","sha256:14f594d1a4d64017b237b4426ba5621deecb98cc6c0d1724b49225bd5642a4ab"],"state_sha256":"e9f84f453e3179ce566f0ca0549b982ccfd4e7c70a05eb0a8b8657b4ceecf31e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MfCskhO2gSygCnb1X0pq4/jggjGtyAnGhnIWawkrRMLpR/OpQervHPmqyn0DQVKJqKZVQBfWCueYKi8ec3RLCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T13:08:13.593105Z","bundle_sha256":"3548ecfd07d9a8630df8ec703fd10f29067aab707b1fdf93f09f93780de7f94e"}}