{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:GI47S5FJ2NEXQFDYFUUHXRNRPX","short_pith_number":"pith:GI47S5FJ","canonical_record":{"source":{"id":"1907.08594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-19T17:42:58Z","cross_cats_sorted":[],"title_canon_sha256":"77022dd216964341048ec2e2cf36fbfa43d84b3d6c80c86be2ad595daf7adbca","abstract_canon_sha256":"0aa68f30caf0b79a931f12444e3c102bd12a4bd5084ab223e77c87fc0e950da3"},"schema_version":"1.0"},"canonical_sha256":"3239f974a9d3497814782d287bc5b17dcaafebf258aff9f75f54a3ec50abed15","source":{"kind":"arxiv","id":"1907.08594","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08594","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08594v1","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08594","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"pith_short_12","alias_value":"GI47S5FJ2NEX","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"pith_short_16","alias_value":"GI47S5FJ2NEXQFDY","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"pith_short_8","alias_value":"GI47S5FJ","created_at":"2026-07-04T23:55:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:GI47S5FJ2NEXQFDYFUUHXRNRPX","target":"record","payload":{"canonical_record":{"source":{"id":"1907.08594","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-19T17:42:58Z","cross_cats_sorted":[],"title_canon_sha256":"77022dd216964341048ec2e2cf36fbfa43d84b3d6c80c86be2ad595daf7adbca","abstract_canon_sha256":"0aa68f30caf0b79a931f12444e3c102bd12a4bd5084ab223e77c87fc0e950da3"},"schema_version":"1.0"},"canonical_sha256":"3239f974a9d3497814782d287bc5b17dcaafebf258aff9f75f54a3ec50abed15","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T23:55:47.330485Z","signature_b64":"wmC1U7IK/cxiUb/1iVk6+y6I/Biie0tg3csVBz8SUmEldJwmFK9pKNJi4OyYhMZHpVBEfgDhxzSkj7EIweEOCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3239f974a9d3497814782d287bc5b17dcaafebf258aff9f75f54a3ec50abed15","last_reissued_at":"2026-07-04T23:55:47.329981Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T23:55:47.329981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1907.08594","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":"2026-07-04T23:55:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mweXxrWHkLWRfZsVUrhp6I7Ks1XSGRLfay9kyVCZNNCSNYYTNvcfbwjFwWHVRDl7dts8FOWhaNJEze9/2C04BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:17:23.273062Z"},"content_sha256":"18d83afe74df96fde4381eda738af6f84572ed8a2c829c8a73ece36964533981","schema_version":"1.0","event_id":"sha256:18d83afe74df96fde4381eda738af6f84572ed8a2c829c8a73ece36964533981"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:GI47S5FJ2NEXQFDYFUUHXRNRPX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The inner dust shell of Betelgeuse detected by polarimetric aperture-masking interferometry","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. Chiavassa, B. Norris, C. Pinte, G. Perrin, J. H. Girard, N.M. Kostogryz, P.G. Tuthill, P. Kervella, S. Lacour, S.T. Ridgway, S.V. Berdyugina, X. Haubois","submitted_at":"2019-07-19T17:42:58Z","abstract_excerpt":"Theory surrounding the origin of the dust-laden winds from evolved stars remains mired in controversy. Characterizing the formation loci and the dust distribution within approximately the first stellar radius above the surface is crucial for understanding the physics that underlie the mass-loss phenomenon. By exploiting interferometric polarimetry, we derive the fundamental parameters that govern the dust structure at the wind base of a red supergiant. We present near-infrared aperture-masking observations of Betelgeuse in polarimetric mode obtained with the NACO/SAMPol instrument. We used bot"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08594","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/1907.08594/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":"2026-07-04T23:55:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cAr8TLCWOgwIIlgcpauBfcEX8CakLLM8qm1dCJ9IUAwcyY9LAHpHQK/bzCFnqZHmwkGYKHOhzEFYWm15SSloCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T20:17:23.273858Z"},"content_sha256":"ed431045f77ff84291cace014d96046f50d49eeef84d59b08b909c3fb427ac79","schema_version":"1.0","event_id":"sha256:ed431045f77ff84291cace014d96046f50d49eeef84d59b08b909c3fb427ac79"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/GI47S5FJ2NEXQFDYFUUHXRNRPX/bundle.json","state_url":"https://pith.science/pith/GI47S5FJ2NEXQFDYFUUHXRNRPX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/GI47S5FJ2NEXQFDYFUUHXRNRPX/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":"2026-08-04T20:17:23Z","links":{"resolver":"https://pith.science/pith/GI47S5FJ2NEXQFDYFUUHXRNRPX","bundle":"https://pith.science/pith/GI47S5FJ2NEXQFDYFUUHXRNRPX/bundle.json","state":"https://pith.science/pith/GI47S5FJ2NEXQFDYFUUHXRNRPX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/GI47S5FJ2NEXQFDYFUUHXRNRPX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:GI47S5FJ2NEXQFDYFUUHXRNRPX","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":"0aa68f30caf0b79a931f12444e3c102bd12a4bd5084ab223e77c87fc0e950da3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-19T17:42:58Z","title_canon_sha256":"77022dd216964341048ec2e2cf36fbfa43d84b3d6c80c86be2ad595daf7adbca"},"schema_version":"1.0","source":{"id":"1907.08594","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1907.08594","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"arxiv_version","alias_value":"1907.08594v1","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1907.08594","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"pith_short_12","alias_value":"GI47S5FJ2NEX","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"pith_short_16","alias_value":"GI47S5FJ2NEXQFDY","created_at":"2026-07-04T23:55:47Z"},{"alias_kind":"pith_short_8","alias_value":"GI47S5FJ","created_at":"2026-07-04T23:55:47Z"}],"graph_snapshots":[{"event_id":"sha256:ed431045f77ff84291cace014d96046f50d49eeef84d59b08b909c3fb427ac79","target":"graph","created_at":"2026-07-04T23:55:47Z","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/1907.08594/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Theory surrounding the origin of the dust-laden winds from evolved stars remains mired in controversy. Characterizing the formation loci and the dust distribution within approximately the first stellar radius above the surface is crucial for understanding the physics that underlie the mass-loss phenomenon. By exploiting interferometric polarimetry, we derive the fundamental parameters that govern the dust structure at the wind base of a red supergiant. We present near-infrared aperture-masking observations of Betelgeuse in polarimetric mode obtained with the NACO/SAMPol instrument. We used bot","authors_text":"A. Chiavassa, B. Norris, C. Pinte, G. Perrin, J. H. Girard, N.M. Kostogryz, P.G. Tuthill, P. Kervella, S. Lacour, S.T. Ridgway, S.V. Berdyugina, X. Haubois","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-19T17:42:58Z","title":"The inner dust shell of Betelgeuse detected by polarimetric aperture-masking interferometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1907.08594","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":"sha256:18d83afe74df96fde4381eda738af6f84572ed8a2c829c8a73ece36964533981","target":"record","created_at":"2026-07-04T23:55:47Z","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":"0aa68f30caf0b79a931f12444e3c102bd12a4bd5084ab223e77c87fc0e950da3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2019-07-19T17:42:58Z","title_canon_sha256":"77022dd216964341048ec2e2cf36fbfa43d84b3d6c80c86be2ad595daf7adbca"},"schema_version":"1.0","source":{"id":"1907.08594","kind":"arxiv","version":1}},"canonical_sha256":"3239f974a9d3497814782d287bc5b17dcaafebf258aff9f75f54a3ec50abed15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3239f974a9d3497814782d287bc5b17dcaafebf258aff9f75f54a3ec50abed15","first_computed_at":"2026-07-04T23:55:47.329981Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:55:47.329981Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wmC1U7IK/cxiUb/1iVk6+y6I/Biie0tg3csVBz8SUmEldJwmFK9pKNJi4OyYhMZHpVBEfgDhxzSkj7EIweEOCA==","signature_status":"signed_v1","signed_at":"2026-07-04T23:55:47.330485Z","signed_message":"canonical_sha256_bytes"},"source_id":"1907.08594","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:18d83afe74df96fde4381eda738af6f84572ed8a2c829c8a73ece36964533981","sha256:ed431045f77ff84291cace014d96046f50d49eeef84d59b08b909c3fb427ac79"],"state_sha256":"3dd59f57e145fcc74ee982ee1699808e4a625b4e5251eaf7a83c2623480f254c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cClhsuLCvfMG9F2Dthksq42vOowVdEwMdwIoYkOJMpDvbK/Ksj7FFmkZ6mK26zgqfKJJJhfcRDZqxFZ3CwgcCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T20:17:23.279198Z","bundle_sha256":"e5f71cbc543f427af0b4e1cf18d03ed7745b016317e5293deff39c81f816f505"}}