{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:5F7M6GTGE53TXNUZTGFGLS3PUD","short_pith_number":"pith:5F7M6GTG","canonical_record":{"source":{"id":"2301.11433","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-01-26T21:41:04Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"da29e6264a46ffe0500e209f10dd45a39e031e78bfc578144a25821375a51cc0","abstract_canon_sha256":"bb673ecee98644fab2c2a9655a0217250d1196acd44a5620350e4aca04880ff5"},"schema_version":"1.0"},"canonical_sha256":"e97ecf1a6627773bb699998a65cb6fa0feaf81296b6b0f2e08652aae55a171c6","source":{"kind":"arxiv","id":"2301.11433","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.11433","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"arxiv_version","alias_value":"2301.11433v1","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.11433","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"pith_short_12","alias_value":"5F7M6GTGE53T","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"pith_short_16","alias_value":"5F7M6GTGE53TXNUZ","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"pith_short_8","alias_value":"5F7M6GTG","created_at":"2026-07-05T06:04:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:5F7M6GTGE53TXNUZTGFGLS3PUD","target":"record","payload":{"canonical_record":{"source":{"id":"2301.11433","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-01-26T21:41:04Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"da29e6264a46ffe0500e209f10dd45a39e031e78bfc578144a25821375a51cc0","abstract_canon_sha256":"bb673ecee98644fab2c2a9655a0217250d1196acd44a5620350e4aca04880ff5"},"schema_version":"1.0"},"canonical_sha256":"e97ecf1a6627773bb699998a65cb6fa0feaf81296b6b0f2e08652aae55a171c6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:04:08.107602Z","signature_b64":"u60QP4u6rfjos65Xuoqt+FBbAyXyBqMK2ycmWrJzrUg5vqEzf9Vd80IwNAF7ESMs7YM5KqxqGx35kPu7mlUlBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e97ecf1a6627773bb699998a65cb6fa0feaf81296b6b0f2e08652aae55a171c6","last_reissued_at":"2026-07-05T06:04:08.107226Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:04:08.107226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2301.11433","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":"2026-07-05T06:04:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CJpEGQZL/VW5dmLGn2G+cOAO7vmLXk1FEiERGHGUOBHWNfA9CqJrRwpw0Sk4IK3cnC9RQUyaNL/gUN3PFcGwBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T08:29:28.777757Z"},"content_sha256":"20ff346e12c81f7f29a5f375268fe3e3dab271295bfdcaa6e77eedb5cd41b0c0","schema_version":"1.0","event_id":"sha256:20ff346e12c81f7f29a5f375268fe3e3dab271295bfdcaa6e77eedb5cd41b0c0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:5F7M6GTGE53TXNUZTGFGLS3PUD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Strong Variability in AzV 493, an Extreme Oe-Type Star in the SMC","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"A. Chiti, G. D. Phillips, G. Micheva, I. Vargas-Salazar, J. D. Monnier, K. C. Rasmussen, M. K. Szymanski, M. Ratajczak, M. Renzo, M. S. Oey, M. W. Suffak, N. Calvet, N. Castro, R. H. D. Townsend","submitted_at":"2023-01-26T21:41:04Z","abstract_excerpt":"We present 18 years of OGLE photometry together with spectra obtained over 12 years, revealing that the early Oe star AzV 493 shows strong photometric (Delta I < 1.2 mag) and spectroscopic variability with a dominant, 14.6-year pattern and ~40-day oscillations. We estimate stellar parameters T_eff = 42000 K, log L/L_sun = 5.83 +/- 0.15, M/M_sun = 50 +/- 9, and vsini = 370 +/- 40 km/s. Direct spectroscopic evidence shows episodes of both gas ejection and infall. There is no X-ray detection, and it is likely a runaway star. AzV 493 may have an unseen companion on a highly eccentric (e > 0.93) or"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.11433","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/2301.11433/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":"2026-07-05T06:04:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WnrVHCAAos0Ir1cpUCxDDE5XSJE3zTXrUHgpsjb5e4LJfkhzICDh80t5/DERc4PLMtSBoRVk+EwNfvN2eleEBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-16T08:29:28.778128Z"},"content_sha256":"beb13af3183b61412367cb3223dc2b299f9dca0338f068d4cfdca84020a1a6ba","schema_version":"1.0","event_id":"sha256:beb13af3183b61412367cb3223dc2b299f9dca0338f068d4cfdca84020a1a6ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5F7M6GTGE53TXNUZTGFGLS3PUD/bundle.json","state_url":"https://pith.science/pith/5F7M6GTGE53TXNUZTGFGLS3PUD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5F7M6GTGE53TXNUZTGFGLS3PUD/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":"2026-07-16T08:29:28Z","links":{"resolver":"https://pith.science/pith/5F7M6GTGE53TXNUZTGFGLS3PUD","bundle":"https://pith.science/pith/5F7M6GTGE53TXNUZTGFGLS3PUD/bundle.json","state":"https://pith.science/pith/5F7M6GTGE53TXNUZTGFGLS3PUD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5F7M6GTGE53TXNUZTGFGLS3PUD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:5F7M6GTGE53TXNUZTGFGLS3PUD","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":"bb673ecee98644fab2c2a9655a0217250d1196acd44a5620350e4aca04880ff5","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-01-26T21:41:04Z","title_canon_sha256":"da29e6264a46ffe0500e209f10dd45a39e031e78bfc578144a25821375a51cc0"},"schema_version":"1.0","source":{"id":"2301.11433","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2301.11433","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"arxiv_version","alias_value":"2301.11433v1","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2301.11433","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"pith_short_12","alias_value":"5F7M6GTGE53T","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"pith_short_16","alias_value":"5F7M6GTGE53TXNUZ","created_at":"2026-07-05T06:04:08Z"},{"alias_kind":"pith_short_8","alias_value":"5F7M6GTG","created_at":"2026-07-05T06:04:08Z"}],"graph_snapshots":[{"event_id":"sha256:beb13af3183b61412367cb3223dc2b299f9dca0338f068d4cfdca84020a1a6ba","target":"graph","created_at":"2026-07-05T06:04:08Z","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/2301.11433/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present 18 years of OGLE photometry together with spectra obtained over 12 years, revealing that the early Oe star AzV 493 shows strong photometric (Delta I < 1.2 mag) and spectroscopic variability with a dominant, 14.6-year pattern and ~40-day oscillations. We estimate stellar parameters T_eff = 42000 K, log L/L_sun = 5.83 +/- 0.15, M/M_sun = 50 +/- 9, and vsini = 370 +/- 40 km/s. Direct spectroscopic evidence shows episodes of both gas ejection and infall. There is no X-ray detection, and it is likely a runaway star. AzV 493 may have an unseen companion on a highly eccentric (e > 0.93) or","authors_text":"A. Chiti, G. D. Phillips, G. Micheva, I. Vargas-Salazar, J. D. Monnier, K. C. Rasmussen, M. K. Szymanski, M. Ratajczak, M. Renzo, M. S. Oey, M. W. Suffak, N. Calvet, N. Castro, R. H. D. Townsend","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-01-26T21:41:04Z","title":"Strong Variability in AzV 493, an Extreme Oe-Type Star in the SMC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2301.11433","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":"sha256:20ff346e12c81f7f29a5f375268fe3e3dab271295bfdcaa6e77eedb5cd41b0c0","target":"record","created_at":"2026-07-05T06:04:08Z","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":"bb673ecee98644fab2c2a9655a0217250d1196acd44a5620350e4aca04880ff5","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2023-01-26T21:41:04Z","title_canon_sha256":"da29e6264a46ffe0500e209f10dd45a39e031e78bfc578144a25821375a51cc0"},"schema_version":"1.0","source":{"id":"2301.11433","kind":"arxiv","version":1}},"canonical_sha256":"e97ecf1a6627773bb699998a65cb6fa0feaf81296b6b0f2e08652aae55a171c6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e97ecf1a6627773bb699998a65cb6fa0feaf81296b6b0f2e08652aae55a171c6","first_computed_at":"2026-07-05T06:04:08.107226Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:04:08.107226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u60QP4u6rfjos65Xuoqt+FBbAyXyBqMK2ycmWrJzrUg5vqEzf9Vd80IwNAF7ESMs7YM5KqxqGx35kPu7mlUlBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T06:04:08.107602Z","signed_message":"canonical_sha256_bytes"},"source_id":"2301.11433","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:20ff346e12c81f7f29a5f375268fe3e3dab271295bfdcaa6e77eedb5cd41b0c0","sha256:beb13af3183b61412367cb3223dc2b299f9dca0338f068d4cfdca84020a1a6ba"],"state_sha256":"b0e0c126b8eefe12343aae2a66345c537497061c14ba60f3ecbca8459923ddce"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XkF9S1n0Hm2NU0vT7QGTXHtc8sAnA81THjONjwadtNTBeYjgv15oxLQhJEoF6Q6S6jRRYWEUA/0R8Ii0eIZGBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-16T08:29:28.780655Z","bundle_sha256":"6f1347c0ba984e08139714a961447126d2176c8883d8a0e5874e5b8fb1f1c224"}}