{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:JHMXEIWXEMCJBWLKUPNRPGIHPO","short_pith_number":"pith:JHMXEIWX","canonical_record":{"source":{"id":"1009.3752","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-20T10:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"9d9df2b69a67f265cca9afccfa4493e5ad38374c4933b2dbdfcf1e0e35427241","abstract_canon_sha256":"0af866ec0c4e97b4948f940dd63f5e0695fa27fb0a454b9fe874dcd55dd494cf"},"schema_version":"1.0"},"canonical_sha256":"49d97222d7230490d96aa3db1799077b9be3a31251a56f5b08e98379f5fd9df5","source":{"kind":"arxiv","id":"1009.3752","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.3752","created_at":"2026-05-18T02:05:21Z"},{"alias_kind":"arxiv_version","alias_value":"1009.3752v1","created_at":"2026-05-18T02:05:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.3752","created_at":"2026-05-18T02:05:21Z"},{"alias_kind":"pith_short_12","alias_value":"JHMXEIWXEMCJ","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"JHMXEIWXEMCJBWLK","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"JHMXEIWX","created_at":"2026-05-18T12:26:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:JHMXEIWXEMCJBWLKUPNRPGIHPO","target":"record","payload":{"canonical_record":{"source":{"id":"1009.3752","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-20T10:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"9d9df2b69a67f265cca9afccfa4493e5ad38374c4933b2dbdfcf1e0e35427241","abstract_canon_sha256":"0af866ec0c4e97b4948f940dd63f5e0695fa27fb0a454b9fe874dcd55dd494cf"},"schema_version":"1.0"},"canonical_sha256":"49d97222d7230490d96aa3db1799077b9be3a31251a56f5b08e98379f5fd9df5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:05:21.593460Z","signature_b64":"dUZeMH6x6ebDwjHTzd0OMjMGOueIRt7vW3mLpZhGCq+KgqR6QhYD1vgLw2vPwh8oEfk4qAxr1UdicLnMq6H0DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"49d97222d7230490d96aa3db1799077b9be3a31251a56f5b08e98379f5fd9df5","last_reissued_at":"2026-05-18T02:05:21.592712Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:05:21.592712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1009.3752","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":"2026-05-18T02:05:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cyJRy4rdbwy91iE4DZ96iwTEu+f7hi0KPYKeDCc1MtjLLj/sK8ZqKDXu4y/M9fGSFLyiqWKlks6khb2KdrufBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:07:50.217286Z"},"content_sha256":"d1211088672abc5972c60adad99b9ab3cc072114751cf58d767276b72bb5ab68","schema_version":"1.0","event_id":"sha256:d1211088672abc5972c60adad99b9ab3cc072114751cf58d767276b72bb5ab68"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:JHMXEIWXEMCJBWLKUPNRPGIHPO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Is macroturbulence in OB Sgs related to pulsations?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Herrero, C. Aerts, J. Puls, K. Uytterhoeven, N. Castro, S. Sim\\'on-D\\'iaz","submitted_at":"2010-09-20T10:00:04Z","abstract_excerpt":"As part of a long term observational project, we are investigating the macroturbulent broadening in O and B supergiants (Sgs) and its possible connection with spectroscopic variability phenomena and stellar oscillations. We present the first results of our project, namely firm observational evidence for a strong correlation between the extra broadening and photospheric line-profile variations in a sample of 13 Sgs with spectral types ranging from O9.5 to B8."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.3752","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":"2026-05-18T02:05:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8N4Z9YcaYHcBwHf5K5J7Xos4mc82EjMzM8DU50XxtfTrly7Qdvgf82soW/z9qacHpkHjomd68H3JFBxrH8ICCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T01:07:50.217765Z"},"content_sha256":"082c567f2ec6169a25160268263708e231893c65f1a1ca4d77af0c366b22fd9b","schema_version":"1.0","event_id":"sha256:082c567f2ec6169a25160268263708e231893c65f1a1ca4d77af0c366b22fd9b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JHMXEIWXEMCJBWLKUPNRPGIHPO/bundle.json","state_url":"https://pith.science/pith/JHMXEIWXEMCJBWLKUPNRPGIHPO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JHMXEIWXEMCJBWLKUPNRPGIHPO/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":"2026-06-05T01:07:50Z","links":{"resolver":"https://pith.science/pith/JHMXEIWXEMCJBWLKUPNRPGIHPO","bundle":"https://pith.science/pith/JHMXEIWXEMCJBWLKUPNRPGIHPO/bundle.json","state":"https://pith.science/pith/JHMXEIWXEMCJBWLKUPNRPGIHPO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JHMXEIWXEMCJBWLKUPNRPGIHPO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:JHMXEIWXEMCJBWLKUPNRPGIHPO","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":"0af866ec0c4e97b4948f940dd63f5e0695fa27fb0a454b9fe874dcd55dd494cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-20T10:00:04Z","title_canon_sha256":"9d9df2b69a67f265cca9afccfa4493e5ad38374c4933b2dbdfcf1e0e35427241"},"schema_version":"1.0","source":{"id":"1009.3752","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1009.3752","created_at":"2026-05-18T02:05:21Z"},{"alias_kind":"arxiv_version","alias_value":"1009.3752v1","created_at":"2026-05-18T02:05:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1009.3752","created_at":"2026-05-18T02:05:21Z"},{"alias_kind":"pith_short_12","alias_value":"JHMXEIWXEMCJ","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_16","alias_value":"JHMXEIWXEMCJBWLK","created_at":"2026-05-18T12:26:09Z"},{"alias_kind":"pith_short_8","alias_value":"JHMXEIWX","created_at":"2026-05-18T12:26:09Z"}],"graph_snapshots":[{"event_id":"sha256:082c567f2ec6169a25160268263708e231893c65f1a1ca4d77af0c366b22fd9b","target":"graph","created_at":"2026-05-18T02:05:21Z","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":"As part of a long term observational project, we are investigating the macroturbulent broadening in O and B supergiants (Sgs) and its possible connection with spectroscopic variability phenomena and stellar oscillations. We present the first results of our project, namely firm observational evidence for a strong correlation between the extra broadening and photospheric line-profile variations in a sample of 13 Sgs with spectral types ranging from O9.5 to B8.","authors_text":"A. Herrero, C. Aerts, J. Puls, K. Uytterhoeven, N. Castro, S. Sim\\'on-D\\'iaz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-20T10:00:04Z","title":"Is macroturbulence in OB Sgs related to pulsations?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.3752","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:d1211088672abc5972c60adad99b9ab3cc072114751cf58d767276b72bb5ab68","target":"record","created_at":"2026-05-18T02:05:21Z","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":"0af866ec0c4e97b4948f940dd63f5e0695fa27fb0a454b9fe874dcd55dd494cf","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2010-09-20T10:00:04Z","title_canon_sha256":"9d9df2b69a67f265cca9afccfa4493e5ad38374c4933b2dbdfcf1e0e35427241"},"schema_version":"1.0","source":{"id":"1009.3752","kind":"arxiv","version":1}},"canonical_sha256":"49d97222d7230490d96aa3db1799077b9be3a31251a56f5b08e98379f5fd9df5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"49d97222d7230490d96aa3db1799077b9be3a31251a56f5b08e98379f5fd9df5","first_computed_at":"2026-05-18T02:05:21.592712Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:05:21.592712Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dUZeMH6x6ebDwjHTzd0OMjMGOueIRt7vW3mLpZhGCq+KgqR6QhYD1vgLw2vPwh8oEfk4qAxr1UdicLnMq6H0DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:05:21.593460Z","signed_message":"canonical_sha256_bytes"},"source_id":"1009.3752","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d1211088672abc5972c60adad99b9ab3cc072114751cf58d767276b72bb5ab68","sha256:082c567f2ec6169a25160268263708e231893c65f1a1ca4d77af0c366b22fd9b"],"state_sha256":"0bd7ec928c565c5b270d969c94b05bb9bcc314cf0c4d479c7654afe46127c470"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Wf1jnj/uWF5oSWjynSLDqI4Lj3xsbi8awIuBILy7jAQPbxPIJFlV6goAU51pQ/za+/+azug5ndjnvurZC81WAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T01:07:50.221231Z","bundle_sha256":"ffbc9ccf0d673e04c657bc9adca7478c0f348df381eb648bcc31abda6ff6ff98"}}