{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2000:WS7OCKUGCW7WJPHAAHSR2B4SYB","short_pith_number":"pith:WS7OCKUG","canonical_record":{"source":{"id":"astro-ph/0010420","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-20T15:15:25Z","cross_cats_sorted":[],"title_canon_sha256":"ec046181e3c17fbadd376fa9fffce77e213cf24b1323c5e6b8ca8385a8da2ef0","abstract_canon_sha256":"17884e1dddee8907852332ef0aafff47a726242326915d4a093b1c44d6593a0c"},"schema_version":"1.0"},"canonical_sha256":"b4bee12a8615bf64bce001e51d0792c0702477930b1de51dc8eec021b43a16af","source":{"kind":"arxiv","id":"astro-ph/0010420","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0010420","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0010420v2","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0010420","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_12","alias_value":"WS7OCKUGCW7W","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_16","alias_value":"WS7OCKUGCW7WJPHA","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_8","alias_value":"WS7OCKUG","created_at":"2026-07-04T16:17:26Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2000:WS7OCKUGCW7WJPHAAHSR2B4SYB","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0010420","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-20T15:15:25Z","cross_cats_sorted":[],"title_canon_sha256":"ec046181e3c17fbadd376fa9fffce77e213cf24b1323c5e6b8ca8385a8da2ef0","abstract_canon_sha256":"17884e1dddee8907852332ef0aafff47a726242326915d4a093b1c44d6593a0c"},"schema_version":"1.0"},"canonical_sha256":"b4bee12a8615bf64bce001e51d0792c0702477930b1de51dc8eec021b43a16af","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:17:26.362674Z","signature_b64":"IISUpLz1wMS+pHTYSD0b7zQ9UzvWBd4fF1NQf3DOcRdNTLfE2DL+rIGJkkrqW3C5DRta7Y1moHxb5uNueC60Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b4bee12a8615bf64bce001e51d0792c0702477930b1de51dc8eec021b43a16af","last_reissued_at":"2026-07-04T16:17:26.362282Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:17:26.362282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0010420","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:17:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cURX5mW68GJFYrp5slOhTAkeOxgUqvMqNK4vNNdf3hE8OS1m9nPNYtBI3tt77OxlI8H27LIIdr3VrAccdhtvAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T08:19:13.256567Z"},"content_sha256":"1d2c92dad912faf1ffb9cb5ac5e90e33fb4c7b3fb6ce539f6891739da2535981","schema_version":"1.0","event_id":"sha256:1d2c92dad912faf1ffb9cb5ac5e90e33fb4c7b3fb6ce539f6891739da2535981"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2000:WS7OCKUGCW7WJPHAAHSR2B4SYB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Search for Wolf-Rayet Stars in the Small Magellanic Cloud","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Alaine Duffy, Phil Massey","submitted_at":"2000-10-20T15:15:25Z","abstract_excerpt":"We conducted an extensive search for Wolf-Rayet stars (W-Rs) in the SMC, using the same interference filter imaging techniques that have proved successful in finding W-Rs in more distant members of the Local Group. Photometry of some 1.6 million stellar images resulted in some 20 good candidates, which we then examined spectroscopically. Two of these indeed proved to be newly found W-Rs, bringing the total known in the SMC from 9 to 11. Other finds included previously unknown Of-type stars (one as early as O5f?p)),the recovery of the Luminous Blue Variable S18, and the discovery of a previousl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0010420","kind":"arxiv","version":2},"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/0010420/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":"2026-07-04T16:17:26Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w/sTbn5vSMS4d021GjLGDvRwyd+1JCQDwzcer5yHhr1z88lvYpVL2iuCeIESHU25IBrk1Y4kcEcLMchioPcoDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T08:19:13.257684Z"},"content_sha256":"ca9bc1e1d916f2ea07103ad5f2127ffd52c6f3dba1c026c86ebe44b186e0312a","schema_version":"1.0","event_id":"sha256:ca9bc1e1d916f2ea07103ad5f2127ffd52c6f3dba1c026c86ebe44b186e0312a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WS7OCKUGCW7WJPHAAHSR2B4SYB/bundle.json","state_url":"https://pith.science/pith/WS7OCKUGCW7WJPHAAHSR2B4SYB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WS7OCKUGCW7WJPHAAHSR2B4SYB/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":"2026-08-15T08:19:13Z","links":{"resolver":"https://pith.science/pith/WS7OCKUGCW7WJPHAAHSR2B4SYB","bundle":"https://pith.science/pith/WS7OCKUGCW7WJPHAAHSR2B4SYB/bundle.json","state":"https://pith.science/pith/WS7OCKUGCW7WJPHAAHSR2B4SYB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WS7OCKUGCW7WJPHAAHSR2B4SYB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:WS7OCKUGCW7WJPHAAHSR2B4SYB","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":"17884e1dddee8907852332ef0aafff47a726242326915d4a093b1c44d6593a0c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-20T15:15:25Z","title_canon_sha256":"ec046181e3c17fbadd376fa9fffce77e213cf24b1323c5e6b8ca8385a8da2ef0"},"schema_version":"1.0","source":{"id":"astro-ph/0010420","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0010420","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0010420v2","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0010420","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_12","alias_value":"WS7OCKUGCW7W","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_16","alias_value":"WS7OCKUGCW7WJPHA","created_at":"2026-07-04T16:17:26Z"},{"alias_kind":"pith_short_8","alias_value":"WS7OCKUG","created_at":"2026-07-04T16:17:26Z"}],"graph_snapshots":[{"event_id":"sha256:ca9bc1e1d916f2ea07103ad5f2127ffd52c6f3dba1c026c86ebe44b186e0312a","target":"graph","created_at":"2026-07-04T16:17:26Z","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/0010420/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We conducted an extensive search for Wolf-Rayet stars (W-Rs) in the SMC, using the same interference filter imaging techniques that have proved successful in finding W-Rs in more distant members of the Local Group. Photometry of some 1.6 million stellar images resulted in some 20 good candidates, which we then examined spectroscopically. Two of these indeed proved to be newly found W-Rs, bringing the total known in the SMC from 9 to 11. Other finds included previously unknown Of-type stars (one as early as O5f?p)),the recovery of the Luminous Blue Variable S18, and the discovery of a previousl","authors_text":"Alaine Duffy, Phil Massey","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-10-20T15:15:25Z","title":"A Search for Wolf-Rayet Stars in the Small Magellanic Cloud"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0010420","kind":"arxiv","version":2},"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":"sha256:1d2c92dad912faf1ffb9cb5ac5e90e33fb4c7b3fb6ce539f6891739da2535981","target":"record","created_at":"2026-07-04T16:17:26Z","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":"17884e1dddee8907852332ef0aafff47a726242326915d4a093b1c44d6593a0c","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-10-20T15:15:25Z","title_canon_sha256":"ec046181e3c17fbadd376fa9fffce77e213cf24b1323c5e6b8ca8385a8da2ef0"},"schema_version":"1.0","source":{"id":"astro-ph/0010420","kind":"arxiv","version":2}},"canonical_sha256":"b4bee12a8615bf64bce001e51d0792c0702477930b1de51dc8eec021b43a16af","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b4bee12a8615bf64bce001e51d0792c0702477930b1de51dc8eec021b43a16af","first_computed_at":"2026-07-04T16:17:26.362282Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:17:26.362282Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IISUpLz1wMS+pHTYSD0b7zQ9UzvWBd4fF1NQf3DOcRdNTLfE2DL+rIGJkkrqW3C5DRta7Y1moHxb5uNueC60Cg==","signature_status":"signed_v1","signed_at":"2026-07-04T16:17:26.362674Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0010420","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1d2c92dad912faf1ffb9cb5ac5e90e33fb4c7b3fb6ce539f6891739da2535981","sha256:ca9bc1e1d916f2ea07103ad5f2127ffd52c6f3dba1c026c86ebe44b186e0312a"],"state_sha256":"07915f603285492c0e074925f57e6d11df98e8b7994b2f8549842c4ed60d55ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UjGzTQme8AhMuPYbekZEVq31HWP5fpz8VEZHksqgBu8eSGAq0/VJCKS1bmxqZ4QU/OJqR65KOTECq6j49ul2Bw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T08:19:13.293859Z","bundle_sha256":"5e764c887be75a6676bd7d92d1cd0b8edcc8f0a0c988849f46c354f99041d9b4"}}