{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:RSFYL4WODPIUUDYAG5QIXZ7ZGQ","short_pith_number":"pith:RSFYL4WO","canonical_record":{"source":{"id":"astro-ph/0108358","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-08-22T22:00:45Z","cross_cats_sorted":[],"title_canon_sha256":"67631e04313f65f1ef0fc15f5cb2f05cebdf13a37cc24585467a2a7459492812","abstract_canon_sha256":"1b3f49084f786db31bbd848b18fb5a34cf5e15fa3090bf086b29ac2afedeff52"},"schema_version":"1.0"},"canonical_sha256":"8c8b85f2ce1bd14a0f0037608be7f934082b3dfe1fce1699d8540bf6f9240216","source":{"kind":"arxiv","id":"astro-ph/0108358","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0108358","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0108358v1","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0108358","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"pith_short_12","alias_value":"RSFYL4WODPIU","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"pith_short_16","alias_value":"RSFYL4WODPIUUDYA","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"pith_short_8","alias_value":"RSFYL4WO","created_at":"2026-07-04T14:11:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:RSFYL4WODPIUUDYAG5QIXZ7ZGQ","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0108358","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-08-22T22:00:45Z","cross_cats_sorted":[],"title_canon_sha256":"67631e04313f65f1ef0fc15f5cb2f05cebdf13a37cc24585467a2a7459492812","abstract_canon_sha256":"1b3f49084f786db31bbd848b18fb5a34cf5e15fa3090bf086b29ac2afedeff52"},"schema_version":"1.0"},"canonical_sha256":"8c8b85f2ce1bd14a0f0037608be7f934082b3dfe1fce1699d8540bf6f9240216","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T14:11:26.208460Z","signature_b64":"vQcSMLXHnGCrQP7oY1/+z61cwPmLC2IByfpLeGVCqTl+hd+kjoTIq74Ye3OaMvFMFoWXBERNXIwkF3fUmstYCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8c8b85f2ce1bd14a0f0037608be7f934082b3dfe1fce1699d8540bf6f9240216","last_reissued_at":"2026-07-04T14:11:26.208082Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T14:11:26.208082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0108358","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":"2026-07-04T14:11:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yheT36M4x8rCGtFsOHcCfCGH4RfX1/IZ04Y24hOhm+5NPPNSfQ7+3D7W/1+CIqmMkClwOnXqmRKaXbryZ5igCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:58:32.576523Z"},"content_sha256":"e0a1b727fc2777da2bb7e3918db4bbe81580aa74af3dc86fbe780059ba40fb5d","schema_version":"1.0","event_id":"sha256:e0a1b727fc2777da2bb7e3918db4bbe81580aa74af3dc86fbe780059ba40fb5d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:RSFYL4WODPIUUDYAG5QIXZ7ZGQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Two Decades of Hypergiant Research","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alex Lobel","submitted_at":"2001-08-22T22:00:45Z","abstract_excerpt":"This article is a brief review of the research by Dr. C. de Jager and co-workers over the past twenty years into the physics of hypergiant atmospheres. Various important results on the microturbulence, mass-loss, circumstellar environment, atmospheric velocity fields, and the Yellow Evolutionary Void of these enigmatic stars are summarized. Aspects of recent developments and future work are also communicated."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0108358","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/0108358/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":"2026-07-04T14:11:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sCNiCPqTnV5bCopgJjTnc2LqTDxo6EXeNUVviQoXuoZcTCLUyjYyxHseF8o0eNaMDBnbDks6cp//17PHp4v/Cw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-11T02:58:32.577041Z"},"content_sha256":"d5eefbbd8d091cac94e2c62428473bbf560f216a6c6db6cd1d5bc51ba4189ec4","schema_version":"1.0","event_id":"sha256:d5eefbbd8d091cac94e2c62428473bbf560f216a6c6db6cd1d5bc51ba4189ec4"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RSFYL4WODPIUUDYAG5QIXZ7ZGQ/bundle.json","state_url":"https://pith.science/pith/RSFYL4WODPIUUDYAG5QIXZ7ZGQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RSFYL4WODPIUUDYAG5QIXZ7ZGQ/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":"2026-08-11T02:58:32Z","links":{"resolver":"https://pith.science/pith/RSFYL4WODPIUUDYAG5QIXZ7ZGQ","bundle":"https://pith.science/pith/RSFYL4WODPIUUDYAG5QIXZ7ZGQ/bundle.json","state":"https://pith.science/pith/RSFYL4WODPIUUDYAG5QIXZ7ZGQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RSFYL4WODPIUUDYAG5QIXZ7ZGQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:RSFYL4WODPIUUDYAG5QIXZ7ZGQ","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":"1b3f49084f786db31bbd848b18fb5a34cf5e15fa3090bf086b29ac2afedeff52","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-08-22T22:00:45Z","title_canon_sha256":"67631e04313f65f1ef0fc15f5cb2f05cebdf13a37cc24585467a2a7459492812"},"schema_version":"1.0","source":{"id":"astro-ph/0108358","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0108358","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0108358v1","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0108358","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"pith_short_12","alias_value":"RSFYL4WODPIU","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"pith_short_16","alias_value":"RSFYL4WODPIUUDYA","created_at":"2026-07-04T14:11:26Z"},{"alias_kind":"pith_short_8","alias_value":"RSFYL4WO","created_at":"2026-07-04T14:11:26Z"}],"graph_snapshots":[{"event_id":"sha256:d5eefbbd8d091cac94e2c62428473bbf560f216a6c6db6cd1d5bc51ba4189ec4","target":"graph","created_at":"2026-07-04T14:11:26Z","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/0108358/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This article is a brief review of the research by Dr. C. de Jager and co-workers over the past twenty years into the physics of hypergiant atmospheres. Various important results on the microturbulence, mass-loss, circumstellar environment, atmospheric velocity fields, and the Yellow Evolutionary Void of these enigmatic stars are summarized. Aspects of recent developments and future work are also communicated.","authors_text":"Alex Lobel","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-08-22T22:00:45Z","title":"Two Decades of Hypergiant Research"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0108358","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:e0a1b727fc2777da2bb7e3918db4bbe81580aa74af3dc86fbe780059ba40fb5d","target":"record","created_at":"2026-07-04T14:11:26Z","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":"1b3f49084f786db31bbd848b18fb5a34cf5e15fa3090bf086b29ac2afedeff52","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-08-22T22:00:45Z","title_canon_sha256":"67631e04313f65f1ef0fc15f5cb2f05cebdf13a37cc24585467a2a7459492812"},"schema_version":"1.0","source":{"id":"astro-ph/0108358","kind":"arxiv","version":1}},"canonical_sha256":"8c8b85f2ce1bd14a0f0037608be7f934082b3dfe1fce1699d8540bf6f9240216","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8c8b85f2ce1bd14a0f0037608be7f934082b3dfe1fce1699d8540bf6f9240216","first_computed_at":"2026-07-04T14:11:26.208082Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:11:26.208082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"vQcSMLXHnGCrQP7oY1/+z61cwPmLC2IByfpLeGVCqTl+hd+kjoTIq74Ye3OaMvFMFoWXBERNXIwkF3fUmstYCw==","signature_status":"signed_v1","signed_at":"2026-07-04T14:11:26.208460Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0108358","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e0a1b727fc2777da2bb7e3918db4bbe81580aa74af3dc86fbe780059ba40fb5d","sha256:d5eefbbd8d091cac94e2c62428473bbf560f216a6c6db6cd1d5bc51ba4189ec4"],"state_sha256":"f19313b31146aea27bc414763de8bc9c1c329544fe81631bb573a702d1db5e4e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MrhTLHZ/D3qkb+mrjNk6JMXkvUvY5h+cjZJD6xWq54FLZC7DPsq6XBCRQ9Ongjbe9uiVAh2UaRaKgy2eqft8AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-11T02:58:32.581350Z","bundle_sha256":"385a2c0ce89c7b0ebeab5d770143291aa69f4e1f6d0951a097d4924601407b28"}}