{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2003:XI5OAIVLCIQ56MTQFDMZBYSWYE","short_pith_number":"pith:XI5OAIVL","canonical_record":{"source":{"id":"astro-ph/0309282","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-09-10T07:49:25Z","cross_cats_sorted":[],"title_canon_sha256":"891f968906057c6105582f39a558929b57955e4f4c1f02456ae4503e71cf7412","abstract_canon_sha256":"53e766929997ba3ea64df6a1a7bb184e3b44c9cfcafae0239b61697c3439d29a"},"schema_version":"1.0"},"canonical_sha256":"ba3ae022ab1221df327028d990e256c12db92b52903479ed47ce47a0df2ded43","source":{"kind":"arxiv","id":"astro-ph/0309282","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0309282","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0309282v1","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0309282","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"pith_short_12","alias_value":"XI5OAIVLCIQ5","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"pith_short_16","alias_value":"XI5OAIVLCIQ56MTQ","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"pith_short_8","alias_value":"XI5OAIVL","created_at":"2026-07-04T16:51:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2003:XI5OAIVLCIQ56MTQFDMZBYSWYE","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0309282","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2003-09-10T07:49:25Z","cross_cats_sorted":[],"title_canon_sha256":"891f968906057c6105582f39a558929b57955e4f4c1f02456ae4503e71cf7412","abstract_canon_sha256":"53e766929997ba3ea64df6a1a7bb184e3b44c9cfcafae0239b61697c3439d29a"},"schema_version":"1.0"},"canonical_sha256":"ba3ae022ab1221df327028d990e256c12db92b52903479ed47ce47a0df2ded43","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:51:37.733680Z","signature_b64":"tLq6KHyxoPbkY6EeMrBCjEKvJ+RpvYdFVTXoUGwHVHWzIf/hC2UtHm7apVvi6896v9nDB0uU3d3CChsn0+veBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba3ae022ab1221df327028d990e256c12db92b52903479ed47ce47a0df2ded43","last_reissued_at":"2026-07-04T16:51:37.733286Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:51:37.733286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0309282","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":"2026-07-04T16:51:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EJQ2yq7FA4AhG169S5V1NWe9I0F194yMFL31RFJ1s7HxB/5HMOmPYHPoWYtwpw/0YtOdMQupsXd/mBzBzPT/CA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T11:50:01.792212Z"},"content_sha256":"79363c0c62e79c790ed8bccf60f5bfabd359d4a74fb6dc6ce8c35cd5b438fd68","schema_version":"1.0","event_id":"sha256:79363c0c62e79c790ed8bccf60f5bfabd359d4a74fb6dc6ce8c35cd5b438fd68"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2003:XI5OAIVLCIQ56MTQFDMZBYSWYE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Optical Spectroscopy of IRAS 02091+6333","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.A. Zijlstra (AI Innsbruck, A. Bacher, AG Manchester), C. Lederle, G.E. Groemer, KU Leuven, K. Uytterhoeven, M. Emprechtinger, M.F.M. Lechner, M.G. Kitzbichler, S. Kimeswenger, W. Kapferer, W. Kausch","submitted_at":"2003-09-10T07:49:25Z","abstract_excerpt":"We present a detailed spectroscopic investigation, spanning four winters, of the asymptotic giant branch (AGB) star IRAS 02091+6333. Zijlstra & Weinberger (2002) found a giant wall of dust around this star and modelled this unique phenomenon. However their work suffered from the quality of the optical investigations of the central object. Our spectroscopic investigation allowed us to define the spectral type and the interstellar foreground extinction more precisely. Accurate multi band photometry was carried out. This provides us with the possibility to derive the physical parameters of the sy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0309282","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/0309282/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":"2026-07-04T16:51:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CEsangyB/JOG/WLpA6LVg2lZuFBovuKxUu7UhN8RrMeaT16S3+Y5vosNGzsJwbIAPeZNKW1chnDpj7cjIWNbAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T11:50:01.792604Z"},"content_sha256":"e4d23f743a76fe3837592bb9e0b30db9eba3cc4c24a73959f98b70a92175a2a2","schema_version":"1.0","event_id":"sha256:e4d23f743a76fe3837592bb9e0b30db9eba3cc4c24a73959f98b70a92175a2a2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XI5OAIVLCIQ56MTQFDMZBYSWYE/bundle.json","state_url":"https://pith.science/pith/XI5OAIVLCIQ56MTQFDMZBYSWYE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XI5OAIVLCIQ56MTQFDMZBYSWYE/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":"2026-07-05T11:50:01Z","links":{"resolver":"https://pith.science/pith/XI5OAIVLCIQ56MTQFDMZBYSWYE","bundle":"https://pith.science/pith/XI5OAIVLCIQ56MTQFDMZBYSWYE/bundle.json","state":"https://pith.science/pith/XI5OAIVLCIQ56MTQFDMZBYSWYE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XI5OAIVLCIQ56MTQFDMZBYSWYE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:XI5OAIVLCIQ56MTQFDMZBYSWYE","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":"53e766929997ba3ea64df6a1a7bb184e3b44c9cfcafae0239b61697c3439d29a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-09-10T07:49:25Z","title_canon_sha256":"891f968906057c6105582f39a558929b57955e4f4c1f02456ae4503e71cf7412"},"schema_version":"1.0","source":{"id":"astro-ph/0309282","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0309282","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0309282v1","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0309282","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"pith_short_12","alias_value":"XI5OAIVLCIQ5","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"pith_short_16","alias_value":"XI5OAIVLCIQ56MTQ","created_at":"2026-07-04T16:51:37Z"},{"alias_kind":"pith_short_8","alias_value":"XI5OAIVL","created_at":"2026-07-04T16:51:37Z"}],"graph_snapshots":[{"event_id":"sha256:e4d23f743a76fe3837592bb9e0b30db9eba3cc4c24a73959f98b70a92175a2a2","target":"graph","created_at":"2026-07-04T16:51:37Z","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/0309282/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present a detailed spectroscopic investigation, spanning four winters, of the asymptotic giant branch (AGB) star IRAS 02091+6333. Zijlstra & Weinberger (2002) found a giant wall of dust around this star and modelled this unique phenomenon. However their work suffered from the quality of the optical investigations of the central object. Our spectroscopic investigation allowed us to define the spectral type and the interstellar foreground extinction more precisely. Accurate multi band photometry was carried out. This provides us with the possibility to derive the physical parameters of the sy","authors_text":"A.A. Zijlstra (AI Innsbruck, A. Bacher, AG Manchester), C. Lederle, G.E. Groemer, KU Leuven, K. Uytterhoeven, M. Emprechtinger, M.F.M. Lechner, M.G. Kitzbichler, S. Kimeswenger, W. Kapferer, W. Kausch","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2003-09-10T07:49:25Z","title":"Optical Spectroscopy of IRAS 02091+6333"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0309282","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":"sha256:79363c0c62e79c790ed8bccf60f5bfabd359d4a74fb6dc6ce8c35cd5b438fd68","target":"record","created_at":"2026-07-04T16:51:37Z","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":"53e766929997ba3ea64df6a1a7bb184e3b44c9cfcafae0239b61697c3439d29a","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2003-09-10T07:49:25Z","title_canon_sha256":"891f968906057c6105582f39a558929b57955e4f4c1f02456ae4503e71cf7412"},"schema_version":"1.0","source":{"id":"astro-ph/0309282","kind":"arxiv","version":1}},"canonical_sha256":"ba3ae022ab1221df327028d990e256c12db92b52903479ed47ce47a0df2ded43","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ba3ae022ab1221df327028d990e256c12db92b52903479ed47ce47a0df2ded43","first_computed_at":"2026-07-04T16:51:37.733286Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:51:37.733286Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tLq6KHyxoPbkY6EeMrBCjEKvJ+RpvYdFVTXoUGwHVHWzIf/hC2UtHm7apVvi6896v9nDB0uU3d3CChsn0+veBA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:51:37.733680Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0309282","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:79363c0c62e79c790ed8bccf60f5bfabd359d4a74fb6dc6ce8c35cd5b438fd68","sha256:e4d23f743a76fe3837592bb9e0b30db9eba3cc4c24a73959f98b70a92175a2a2"],"state_sha256":"a9a38e35a7df630bb4fb16402c941048092486cc66fc1d85d52f070fe682b9e5"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FNX1i/hOk83+yqSyq7AH75HqMCZaIjtQbivGUDmikMy3k2l62KBGT4ngR/LBrgj5LlMp9qbVv4k5NSciVJ4HCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T11:50:01.794597Z","bundle_sha256":"811995b3a55d51699756ba0c4f321024c702161a5eb4dbe2546a693b0247106b"}}