{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:IB4W5KI4Y7LMNARIKOSUHUUN7W","short_pith_number":"pith:IB4W5KI4","canonical_record":{"source":{"id":"astro-ph/0611484","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T14:58:05Z","cross_cats_sorted":[],"title_canon_sha256":"7e6f3c77b3d8f3e1942f0dc2e44a3dfaa6d975957cd55ecb1076460d667082df","abstract_canon_sha256":"60331b4e1d029d0fbba1ca1d6deb59fae254beb9d429f4a7340298c15fe6d055"},"schema_version":"1.0"},"canonical_sha256":"40796ea91cc7d6c6822853a543d28dfd9176b835a2258f034263a22c95e5d942","source":{"kind":"arxiv","id":"astro-ph/0611484","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0611484","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0611484v1","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0611484","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"pith_short_12","alias_value":"IB4W5KI4Y7LM","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"pith_short_16","alias_value":"IB4W5KI4Y7LMNARI","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"pith_short_8","alias_value":"IB4W5KI4","created_at":"2026-07-04T15:54:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:IB4W5KI4Y7LMNARIKOSUHUUN7W","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0611484","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T14:58:05Z","cross_cats_sorted":[],"title_canon_sha256":"7e6f3c77b3d8f3e1942f0dc2e44a3dfaa6d975957cd55ecb1076460d667082df","abstract_canon_sha256":"60331b4e1d029d0fbba1ca1d6deb59fae254beb9d429f4a7340298c15fe6d055"},"schema_version":"1.0"},"canonical_sha256":"40796ea91cc7d6c6822853a543d28dfd9176b835a2258f034263a22c95e5d942","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:54:27.807946Z","signature_b64":"iNKNX0+jhaRB77NrjVWouDf2OxfN5asaeLlr0XxUPk80/mFDLcUfgaeZCc4H2MlX0hycVGI5aeOY9HmaOHqrBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"40796ea91cc7d6c6822853a543d28dfd9176b835a2258f034263a22c95e5d942","last_reissued_at":"2026-07-04T15:54:27.807559Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:54:27.807559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0611484","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":"2026-07-04T15:54:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UrkJuOULrrZ5Uj0tj5XWdMc1lNzd12X6dOUQh1o3XX+HvvS5eNOnMJWGQICVr6AiRBCtLWCfcFSZtAgKJCqyBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T06:13:30.935213Z"},"content_sha256":"24dff0e287f1b7c5df9d250767dc0fa80ea40f4cfedeb9b44297ef699a70f888","schema_version":"1.0","event_id":"sha256:24dff0e287f1b7c5df9d250767dc0fa80ea40f4cfedeb9b44297ef699a70f888"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:IB4W5KI4Y7LMNARIKOSUHUUN7W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Statistical properties of a sample of periodically variable B-type supergiants - Evidence for opacity-driven gravity-mode oscillations","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. Aerts, J. Puls, K. Lefever","submitted_at":"2006-11-15T14:58:05Z","abstract_excerpt":"We have studied a sample of 28 periodically variable B-type supergiants selected from the HIPPARCOS mission and 12 comparison stars covering the whole B-type spectral range. Our goal is to test if their variability is compatible with opacity-driven non-radial oscillations.\n  We have used the NLTE atmosphere code FASTWIND to derive the atmospheric and wind parameters of the complete sample through line profile fitting. We applied the method to selected H, He and Si line profiles, measured with the high resolution CES spectrograph attached to the ESO CAT telescope in La Silla, Chile.\n  From the "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611484","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/astro-ph/0611484/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":"2026-07-04T15:54:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1czvAqgYEn+Ofib8MYzwDpS2rEfc15y2iofxoN4e6SCXmhbXeky6gbsCWOUriTNyA+2EAHZ7bdxn1EG2MswzDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T06:13:30.935815Z"},"content_sha256":"62e1b293b061b891ccc95e198e202ab4295c3a943c29c09f55681e5181dd8f8b","schema_version":"1.0","event_id":"sha256:62e1b293b061b891ccc95e198e202ab4295c3a943c29c09f55681e5181dd8f8b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IB4W5KI4Y7LMNARIKOSUHUUN7W/bundle.json","state_url":"https://pith.science/pith/IB4W5KI4Y7LMNARIKOSUHUUN7W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IB4W5KI4Y7LMNARIKOSUHUUN7W/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":"2026-08-09T06:13:30Z","links":{"resolver":"https://pith.science/pith/IB4W5KI4Y7LMNARIKOSUHUUN7W","bundle":"https://pith.science/pith/IB4W5KI4Y7LMNARIKOSUHUUN7W/bundle.json","state":"https://pith.science/pith/IB4W5KI4Y7LMNARIKOSUHUUN7W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IB4W5KI4Y7LMNARIKOSUHUUN7W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:IB4W5KI4Y7LMNARIKOSUHUUN7W","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":"60331b4e1d029d0fbba1ca1d6deb59fae254beb9d429f4a7340298c15fe6d055","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T14:58:05Z","title_canon_sha256":"7e6f3c77b3d8f3e1942f0dc2e44a3dfaa6d975957cd55ecb1076460d667082df"},"schema_version":"1.0","source":{"id":"astro-ph/0611484","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0611484","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0611484v1","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0611484","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"pith_short_12","alias_value":"IB4W5KI4Y7LM","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"pith_short_16","alias_value":"IB4W5KI4Y7LMNARI","created_at":"2026-07-04T15:54:27Z"},{"alias_kind":"pith_short_8","alias_value":"IB4W5KI4","created_at":"2026-07-04T15:54:27Z"}],"graph_snapshots":[{"event_id":"sha256:62e1b293b061b891ccc95e198e202ab4295c3a943c29c09f55681e5181dd8f8b","target":"graph","created_at":"2026-07-04T15:54:27Z","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/astro-ph/0611484/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We have studied a sample of 28 periodically variable B-type supergiants selected from the HIPPARCOS mission and 12 comparison stars covering the whole B-type spectral range. Our goal is to test if their variability is compatible with opacity-driven non-radial oscillations.\n  We have used the NLTE atmosphere code FASTWIND to derive the atmospheric and wind parameters of the complete sample through line profile fitting. We applied the method to selected H, He and Si line profiles, measured with the high resolution CES spectrograph attached to the ESO CAT telescope in La Silla, Chile.\n  From the ","authors_text":"C. Aerts, J. Puls, K. Lefever","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T14:58:05Z","title":"Statistical properties of a sample of periodically variable B-type supergiants - Evidence for opacity-driven gravity-mode oscillations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611484","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":"sha256:24dff0e287f1b7c5df9d250767dc0fa80ea40f4cfedeb9b44297ef699a70f888","target":"record","created_at":"2026-07-04T15:54:27Z","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":"60331b4e1d029d0fbba1ca1d6deb59fae254beb9d429f4a7340298c15fe6d055","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2006-11-15T14:58:05Z","title_canon_sha256":"7e6f3c77b3d8f3e1942f0dc2e44a3dfaa6d975957cd55ecb1076460d667082df"},"schema_version":"1.0","source":{"id":"astro-ph/0611484","kind":"arxiv","version":1}},"canonical_sha256":"40796ea91cc7d6c6822853a543d28dfd9176b835a2258f034263a22c95e5d942","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"40796ea91cc7d6c6822853a543d28dfd9176b835a2258f034263a22c95e5d942","first_computed_at":"2026-07-04T15:54:27.807559Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T15:54:27.807559Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iNKNX0+jhaRB77NrjVWouDf2OxfN5asaeLlr0XxUPk80/mFDLcUfgaeZCc4H2MlX0hycVGI5aeOY9HmaOHqrBw==","signature_status":"signed_v1","signed_at":"2026-07-04T15:54:27.807946Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0611484","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24dff0e287f1b7c5df9d250767dc0fa80ea40f4cfedeb9b44297ef699a70f888","sha256:62e1b293b061b891ccc95e198e202ab4295c3a943c29c09f55681e5181dd8f8b"],"state_sha256":"fc4bdf7ded9bde0cdaf74acea575db12032fa6290d881ea071131c322e8ddcf7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w1joq25aFrQgciTBEs4+LhhAQBilLnRvYdiHJwEgCsDyIdAAVP9vT3W723GACBqViw8wwissh4CEofWZn6vmBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T06:13:30.941395Z","bundle_sha256":"316f674f92ed5defe41e8e813ae7cc40b225da77be12f65c93ec61a2ba277bb5"}}