{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2001:X2UTOMUMT6MCVHQ4IUZYQF6Q6M","short_pith_number":"pith:X2UTOMUM","canonical_record":{"source":{"id":"astro-ph/0111121","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-11-06T18:38:08Z","cross_cats_sorted":[],"title_canon_sha256":"16200014c02e299d9d5e3aa52890169c1a693d7b5a59e7b3a78cbb512b9b8044","abstract_canon_sha256":"b2af150fdbce24534d586967b0ac0fbd29b7a15768765ae98ef44aee317fe65c"},"schema_version":"1.0"},"canonical_sha256":"bea937328c9f982a9e1c45338817d0f32f166a003982e0b93731c6244581d654","source":{"kind":"arxiv","id":"astro-ph/0111121","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0111121","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0111121v1","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0111121","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"pith_short_12","alias_value":"X2UTOMUMT6MC","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"X2UTOMUMT6MCVHQ4","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"X2UTOMUM","created_at":"2026-05-18T12:25:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2001:X2UTOMUMT6MCVHQ4IUZYQF6Q6M","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0111121","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2001-11-06T18:38:08Z","cross_cats_sorted":[],"title_canon_sha256":"16200014c02e299d9d5e3aa52890169c1a693d7b5a59e7b3a78cbb512b9b8044","abstract_canon_sha256":"b2af150fdbce24534d586967b0ac0fbd29b7a15768765ae98ef44aee317fe65c"},"schema_version":"1.0"},"canonical_sha256":"bea937328c9f982a9e1c45338817d0f32f166a003982e0b93731c6244581d654","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:05.202527Z","signature_b64":"Ok4MUkPkS6LyFZILwylzYbTTw3XLyNWmIVUeJRfEvJfFsbC4DFKoj9Jo9iVmlBoOB1J8EHcqT4G7OP7w1rsJCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bea937328c9f982a9e1c45338817d0f32f166a003982e0b93731c6244581d654","last_reissued_at":"2026-05-18T04:29:05.201818Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:05.201818Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0111121","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":"2026-05-18T04:29:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"53cf3L6HQOwhIqJ8kei6TaBlKHyHb/nYFOuhIs1pHJAoz68FVp8QAY1xV5eH731tpkuehOJzT/pSkJ60G0shDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T04:52:32.179743Z"},"content_sha256":"307997c9f3825f75e9019695b84c02f6514fa8be1518c7fb0a975a54a276ea61","schema_version":"1.0","event_id":"sha256:307997c9f3825f75e9019695b84c02f6514fa8be1518c7fb0a975a54a276ea61"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2001:X2UTOMUMT6MCVHQ4IUZYQF6Q6M","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Discovery of Reflection Nebulosity Around Five Vega-like Stars","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), 2) ((1) UC Berkeley, (2) CfAO, (3) STScI, (4) IfA/Hawaii), David C. Jewitt (4), James P. Lloyd (1, James R. Graham (1, Paul Kalas (1, Steven V.W. Beckwith (3)","submitted_at":"2001-11-06T18:38:08Z","abstract_excerpt":"Coronagraphic optical observations of six Vega-like stars reveal reflection nebulosities, five of which were previously unknown. The nebulosities illuminated by HD 4881, HD 23362, HD 23680, HD 26676, and HD 49662 resemble that of the Pleiades, indicating an interstellar origin for dust grains. The reflection nebulosity around HD 123160 has a double-arm morphology, but no disk-like feature is seen as close as 2.5 arcsec from the star in K-band adaptive optics data. We demonstrate that uniform density dust clouds surrounding HD 23362, HD 23680 and HD 123160 can account for the observed 12-100 mi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0111121","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":"2026-05-18T04:29:05Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"001GYZVxES3YSxSwFN0/52B4zZ8YGNmbX8qGiHlS/fFiniW9TMKNDTD5uT9DXPEAINv1UkqY56WnYfG0TTSzDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-04T04:52:32.180090Z"},"content_sha256":"1a4094b8884485de7d40066d94547a88dd4bf421f68261df4f2e662902bfdff7","schema_version":"1.0","event_id":"sha256:1a4094b8884485de7d40066d94547a88dd4bf421f68261df4f2e662902bfdff7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X2UTOMUMT6MCVHQ4IUZYQF6Q6M/bundle.json","state_url":"https://pith.science/pith/X2UTOMUMT6MCVHQ4IUZYQF6Q6M/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X2UTOMUMT6MCVHQ4IUZYQF6Q6M/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":"2026-06-04T04:52:32Z","links":{"resolver":"https://pith.science/pith/X2UTOMUMT6MCVHQ4IUZYQF6Q6M","bundle":"https://pith.science/pith/X2UTOMUMT6MCVHQ4IUZYQF6Q6M/bundle.json","state":"https://pith.science/pith/X2UTOMUMT6MCVHQ4IUZYQF6Q6M/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X2UTOMUMT6MCVHQ4IUZYQF6Q6M/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2001:X2UTOMUMT6MCVHQ4IUZYQF6Q6M","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":"b2af150fdbce24534d586967b0ac0fbd29b7a15768765ae98ef44aee317fe65c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-11-06T18:38:08Z","title_canon_sha256":"16200014c02e299d9d5e3aa52890169c1a693d7b5a59e7b3a78cbb512b9b8044"},"schema_version":"1.0","source":{"id":"astro-ph/0111121","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0111121","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0111121v1","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0111121","created_at":"2026-05-18T04:29:05Z"},{"alias_kind":"pith_short_12","alias_value":"X2UTOMUMT6MC","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_16","alias_value":"X2UTOMUMT6MCVHQ4","created_at":"2026-05-18T12:25:50Z"},{"alias_kind":"pith_short_8","alias_value":"X2UTOMUM","created_at":"2026-05-18T12:25:50Z"}],"graph_snapshots":[{"event_id":"sha256:1a4094b8884485de7d40066d94547a88dd4bf421f68261df4f2e662902bfdff7","target":"graph","created_at":"2026-05-18T04:29:05Z","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":"Coronagraphic optical observations of six Vega-like stars reveal reflection nebulosities, five of which were previously unknown. The nebulosities illuminated by HD 4881, HD 23362, HD 23680, HD 26676, and HD 49662 resemble that of the Pleiades, indicating an interstellar origin for dust grains. The reflection nebulosity around HD 123160 has a double-arm morphology, but no disk-like feature is seen as close as 2.5 arcsec from the star in K-band adaptive optics data. We demonstrate that uniform density dust clouds surrounding HD 23362, HD 23680 and HD 123160 can account for the observed 12-100 mi","authors_text":"2), 2) ((1) UC Berkeley, (2) CfAO, (3) STScI, (4) IfA/Hawaii), David C. Jewitt (4), James P. Lloyd (1, James R. Graham (1, Paul Kalas (1, Steven V.W. Beckwith (3)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2001-11-06T18:38:08Z","title":"Discovery of Reflection Nebulosity Around Five Vega-like Stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0111121","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":"sha256:307997c9f3825f75e9019695b84c02f6514fa8be1518c7fb0a975a54a276ea61","target":"record","created_at":"2026-05-18T04:29:05Z","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":"b2af150fdbce24534d586967b0ac0fbd29b7a15768765ae98ef44aee317fe65c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2001-11-06T18:38:08Z","title_canon_sha256":"16200014c02e299d9d5e3aa52890169c1a693d7b5a59e7b3a78cbb512b9b8044"},"schema_version":"1.0","source":{"id":"astro-ph/0111121","kind":"arxiv","version":1}},"canonical_sha256":"bea937328c9f982a9e1c45338817d0f32f166a003982e0b93731c6244581d654","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bea937328c9f982a9e1c45338817d0f32f166a003982e0b93731c6244581d654","first_computed_at":"2026-05-18T04:29:05.201818Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:29:05.201818Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ok4MUkPkS6LyFZILwylzYbTTw3XLyNWmIVUeJRfEvJfFsbC4DFKoj9Jo9iVmlBoOB1J8EHcqT4G7OP7w1rsJCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T04:29:05.202527Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0111121","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:307997c9f3825f75e9019695b84c02f6514fa8be1518c7fb0a975a54a276ea61","sha256:1a4094b8884485de7d40066d94547a88dd4bf421f68261df4f2e662902bfdff7"],"state_sha256":"3eb83e3af644048e15b7fa6f97eccea350c2312de3f91efbf94cbb69b6295181"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qoEdpwDZvWpi78XeLhAA1g2GTOylT/R3opyp0T3hBhXkyt2kdiXqlsRDJoiCPJkpflvidKRXdu0bDjWUY7P0BQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-04T04:52:32.182031Z","bundle_sha256":"d9e748f015a839b06284035e2ef5fd68e636b14885adaa7c9b77466b742c6830"}}