{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:VWC4ZIVKFPEQQMETQGA3LWK47U","short_pith_number":"pith:VWC4ZIVK","canonical_record":{"source":{"id":"1008.1761","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-10T17:46:55Z","cross_cats_sorted":[],"title_canon_sha256":"48c4ccdb31e87723e28fe0b2d6c707c98a6c80f4023f8cc327511b38b0b3d6cb","abstract_canon_sha256":"3ea17f25c51fa1d9f455a475ec7cbe2226d2f02eabb54b97b3d0487dd6c4e142"},"schema_version":"1.0"},"canonical_sha256":"ad85cca2aa2bc90830938181b5d95cfd1079fc30ccde58df0e896257e1d11c7d","source":{"kind":"arxiv","id":"1008.1761","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.1761","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"arxiv_version","alias_value":"1008.1761v1","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.1761","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"pith_short_12","alias_value":"VWC4ZIVKFPEQ","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"VWC4ZIVKFPEQQMET","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"VWC4ZIVK","created_at":"2026-05-18T12:26:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:VWC4ZIVKFPEQQMETQGA3LWK47U","target":"record","payload":{"canonical_record":{"source":{"id":"1008.1761","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-10T17:46:55Z","cross_cats_sorted":[],"title_canon_sha256":"48c4ccdb31e87723e28fe0b2d6c707c98a6c80f4023f8cc327511b38b0b3d6cb","abstract_canon_sha256":"3ea17f25c51fa1d9f455a475ec7cbe2226d2f02eabb54b97b3d0487dd6c4e142"},"schema_version":"1.0"},"canonical_sha256":"ad85cca2aa2bc90830938181b5d95cfd1079fc30ccde58df0e896257e1d11c7d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:49.716683Z","signature_b64":"UmDQRUV+nn1EHyrD0MS10373sYhXoYJK3wW9A9J18WuaiUEoF97OTuib7SKy1F16Qc8id6Y1iqPAdrnoyTI9Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ad85cca2aa2bc90830938181b5d95cfd1079fc30ccde58df0e896257e1d11c7d","last_reissued_at":"2026-05-18T02:05:49.716093Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:49.716093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1008.1761","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":"2026-05-18T02:05:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WoG7CPumu+xEwZPWwlO7F9JilWmgL2+BUwszFE4EZVUbI54KRMEgSii6A6PGlW8X4B/XMSPWureZJ7OURwDtAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:58:41.976890Z"},"content_sha256":"6baa5040f020ee677bd1e6922f01d6995d32271c0624aee7f867d1bb509f94bd","schema_version":"1.0","event_id":"sha256:6baa5040f020ee677bd1e6922f01d6995d32271c0624aee7f867d1bb509f94bd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:VWC4ZIVKFPEQQMETQGA3LWK47U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Stellar Rotation Census of B Stars: from ZAMS to TAMS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Douglas R. Gies, M. Virginia McSwain, Wenjin Huang","submitted_at":"2010-08-10T17:46:55Z","abstract_excerpt":"Two recent observing campaigns provide us with moderate dispersion spectra of more than 230 cluster and 370 field B stars. Combining them and the spectra of the B stars from our previous investigations ($\\sim$430 cluster and $\\sim$100 field B stars) yields a large, homogeneous sample for studying the rotational properties of B stars. We derive the projected rotational velocity $V\\sin i$, effective temperature, gravity, mass, and critical rotation speed $V_{\\rm crit}$ for each star. We find that the average $V\\sin i$ is significantly lower among field stars because they are systematically more "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.1761","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":"2026-05-18T02:05:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YNSs8b+EzXrDDhujXGMK6fy5Jto8DIhQT5FHt9vUUjZlXVdlQG6SduiQ72HgGnPAIbufcUnr+gc9jAssmxWeDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T21:58:41.977238Z"},"content_sha256":"319257b5ed9bb1a426e79570059ca308bfb63ec3de4fc8b0c308ea236cd9ad9b","schema_version":"1.0","event_id":"sha256:319257b5ed9bb1a426e79570059ca308bfb63ec3de4fc8b0c308ea236cd9ad9b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VWC4ZIVKFPEQQMETQGA3LWK47U/bundle.json","state_url":"https://pith.science/pith/VWC4ZIVKFPEQQMETQGA3LWK47U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VWC4ZIVKFPEQQMETQGA3LWK47U/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":"2026-06-02T21:58:41Z","links":{"resolver":"https://pith.science/pith/VWC4ZIVKFPEQQMETQGA3LWK47U","bundle":"https://pith.science/pith/VWC4ZIVKFPEQQMETQGA3LWK47U/bundle.json","state":"https://pith.science/pith/VWC4ZIVKFPEQQMETQGA3LWK47U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VWC4ZIVKFPEQQMETQGA3LWK47U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:VWC4ZIVKFPEQQMETQGA3LWK47U","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":"3ea17f25c51fa1d9f455a475ec7cbe2226d2f02eabb54b97b3d0487dd6c4e142","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-10T17:46:55Z","title_canon_sha256":"48c4ccdb31e87723e28fe0b2d6c707c98a6c80f4023f8cc327511b38b0b3d6cb"},"schema_version":"1.0","source":{"id":"1008.1761","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1008.1761","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"arxiv_version","alias_value":"1008.1761v1","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1008.1761","created_at":"2026-05-18T02:05:49Z"},{"alias_kind":"pith_short_12","alias_value":"VWC4ZIVKFPEQ","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_16","alias_value":"VWC4ZIVKFPEQQMET","created_at":"2026-05-18T12:26:15Z"},{"alias_kind":"pith_short_8","alias_value":"VWC4ZIVK","created_at":"2026-05-18T12:26:15Z"}],"graph_snapshots":[{"event_id":"sha256:319257b5ed9bb1a426e79570059ca308bfb63ec3de4fc8b0c308ea236cd9ad9b","target":"graph","created_at":"2026-05-18T02:05:49Z","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":"Two recent observing campaigns provide us with moderate dispersion spectra of more than 230 cluster and 370 field B stars. Combining them and the spectra of the B stars from our previous investigations ($\\sim$430 cluster and $\\sim$100 field B stars) yields a large, homogeneous sample for studying the rotational properties of B stars. We derive the projected rotational velocity $V\\sin i$, effective temperature, gravity, mass, and critical rotation speed $V_{\\rm crit}$ for each star. We find that the average $V\\sin i$ is significantly lower among field stars because they are systematically more ","authors_text":"Douglas R. Gies, M. Virginia McSwain, Wenjin Huang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-10T17:46:55Z","title":"A Stellar Rotation Census of B Stars: from ZAMS to TAMS"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1008.1761","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":"sha256:6baa5040f020ee677bd1e6922f01d6995d32271c0624aee7f867d1bb509f94bd","target":"record","created_at":"2026-05-18T02:05:49Z","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":"3ea17f25c51fa1d9f455a475ec7cbe2226d2f02eabb54b97b3d0487dd6c4e142","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-08-10T17:46:55Z","title_canon_sha256":"48c4ccdb31e87723e28fe0b2d6c707c98a6c80f4023f8cc327511b38b0b3d6cb"},"schema_version":"1.0","source":{"id":"1008.1761","kind":"arxiv","version":1}},"canonical_sha256":"ad85cca2aa2bc90830938181b5d95cfd1079fc30ccde58df0e896257e1d11c7d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ad85cca2aa2bc90830938181b5d95cfd1079fc30ccde58df0e896257e1d11c7d","first_computed_at":"2026-05-18T02:05:49.716093Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:49.716093Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UmDQRUV+nn1EHyrD0MS10373sYhXoYJK3wW9A9J18WuaiUEoF97OTuib7SKy1F16Qc8id6Y1iqPAdrnoyTI9Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:49.716683Z","signed_message":"canonical_sha256_bytes"},"source_id":"1008.1761","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6baa5040f020ee677bd1e6922f01d6995d32271c0624aee7f867d1bb509f94bd","sha256:319257b5ed9bb1a426e79570059ca308bfb63ec3de4fc8b0c308ea236cd9ad9b"],"state_sha256":"6e96928f853e3118d36348d7ecbdd67be81cc39b33953fe5a23c56b0d9039ade"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MJfdNd9ju1UzAk0D8R04+Dv6Y/H1l9jrEervMCKPyWDFs0jNHBWAAlQBcPcf/OwVyvDLaRMNXsfNFZMjXU6KDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T21:58:41.979200Z","bundle_sha256":"249c9985747f7976f036f9b6c60a8e6f44ed179a48ae1086a28bd91bd646419d"}}