{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2005:WRWUTRMAMOUZMKR5T6AOBQJB4N","short_pith_number":"pith:WRWUTRMA","canonical_record":{"source":{"id":"astro-ph/0507024","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-01T12:43:45Z","cross_cats_sorted":[],"title_canon_sha256":"045883c609ecf5f7842d6af40e064ba3f15c600163f5119726383ebb9babff5e","abstract_canon_sha256":"afb7daa6a15b768ead0da603e066ee87dcef26372dae33f17927b2657a4d089b"},"schema_version":"1.0"},"canonical_sha256":"b46d49c58063a9962a3d9f80e0c121e376768b4a647e878e598fe246037ea75f","source":{"kind":"arxiv","id":"astro-ph/0507024","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0507024","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0507024v1","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0507024","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"pith_short_12","alias_value":"WRWUTRMAMOUZ","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"pith_short_16","alias_value":"WRWUTRMAMOUZMKR5","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"pith_short_8","alias_value":"WRWUTRMA","created_at":"2026-07-04T16:52:42Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2005:WRWUTRMAMOUZMKR5T6AOBQJB4N","target":"record","payload":{"canonical_record":{"source":{"id":"astro-ph/0507024","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-01T12:43:45Z","cross_cats_sorted":[],"title_canon_sha256":"045883c609ecf5f7842d6af40e064ba3f15c600163f5119726383ebb9babff5e","abstract_canon_sha256":"afb7daa6a15b768ead0da603e066ee87dcef26372dae33f17927b2657a4d089b"},"schema_version":"1.0"},"canonical_sha256":"b46d49c58063a9962a3d9f80e0c121e376768b4a647e878e598fe246037ea75f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:52:42.313372Z","signature_b64":"4kACTtlh6XHFAj3Anq/rdUjlBGiIVGqLw7E4NAMbSThkUvm8Vm7OcHQZ7Ah/stpnkOTGi+AR88w5FZrFhprWDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b46d49c58063a9962a3d9f80e0c121e376768b4a647e878e598fe246037ea75f","last_reissued_at":"2026-07-04T16:52:42.313011Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:52:42.313011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"astro-ph/0507024","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":"2026-07-04T16:52:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"7LRY69oXVqmWKZwYpy7G8+SpXcCMWlbTF/uLw76rPqeauLPuh4J1M3rayBh6U6pZ/ae0U5Czenf0JVRnvBYNDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T05:13:16.132633Z"},"content_sha256":"4dffcbbfec7aa2c16352ece244d93cccfd439c8c9f93d01d419ab80ca09c4d7f","schema_version":"1.0","event_id":"sha256:4dffcbbfec7aa2c16352ece244d93cccfd439c8c9f93d01d419ab80ca09c4d7f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2005:WRWUTRMAMOUZMKR5T6AOBQJB4N","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High resolution spectroscopy of bright subdwarf B stars - I. Radial velocity variables","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"C. Karl, H. Edelmann, M. Altmann, T. Lisker, U. Heber","submitted_at":"2005-07-01T12:43:45Z","abstract_excerpt":"Radial velocity curves for 15 bright subdwarf B binary systems have been measured using high precision radial velocity measurements from high S/N optical high-resolution spectra. In addition, two bright sdB stars are discovered to be radial velocity variable but the period could not yet be determined. The companions for all systems are unseen. The periods range from about 0.18 days up to more than ten days. The radial velocity semi amplitudes are found to lie between 15 and 130 km/s. Using the mass functions, the masses of the unseen companions have been constrained to lower limits of 0.03 up "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0507024","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/0507024/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":"2026-07-04T16:52:42Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oYJys6j8yXb45bG3k7jgyvfC8xtWnpsulTdKxDWmcjZpB7zXiO/okdL9T7+5XkC/dBibz29n24HWBtM6v1kjBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T05:13:16.133001Z"},"content_sha256":"5a2e3525f280d39a83332131dcdd855bdbd6ceaa576d5966157bbf57e7cb12e0","schema_version":"1.0","event_id":"sha256:5a2e3525f280d39a83332131dcdd855bdbd6ceaa576d5966157bbf57e7cb12e0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WRWUTRMAMOUZMKR5T6AOBQJB4N/bundle.json","state_url":"https://pith.science/pith/WRWUTRMAMOUZMKR5T6AOBQJB4N/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WRWUTRMAMOUZMKR5T6AOBQJB4N/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":"2026-07-05T05:13:16Z","links":{"resolver":"https://pith.science/pith/WRWUTRMAMOUZMKR5T6AOBQJB4N","bundle":"https://pith.science/pith/WRWUTRMAMOUZMKR5T6AOBQJB4N/bundle.json","state":"https://pith.science/pith/WRWUTRMAMOUZMKR5T6AOBQJB4N/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WRWUTRMAMOUZMKR5T6AOBQJB4N/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:WRWUTRMAMOUZMKR5T6AOBQJB4N","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":"afb7daa6a15b768ead0da603e066ee87dcef26372dae33f17927b2657a4d089b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-01T12:43:45Z","title_canon_sha256":"045883c609ecf5f7842d6af40e064ba3f15c600163f5119726383ebb9babff5e"},"schema_version":"1.0","source":{"id":"astro-ph/0507024","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0507024","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0507024v1","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0507024","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"pith_short_12","alias_value":"WRWUTRMAMOUZ","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"pith_short_16","alias_value":"WRWUTRMAMOUZMKR5","created_at":"2026-07-04T16:52:42Z"},{"alias_kind":"pith_short_8","alias_value":"WRWUTRMA","created_at":"2026-07-04T16:52:42Z"}],"graph_snapshots":[{"event_id":"sha256:5a2e3525f280d39a83332131dcdd855bdbd6ceaa576d5966157bbf57e7cb12e0","target":"graph","created_at":"2026-07-04T16:52:42Z","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/0507024/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Radial velocity curves for 15 bright subdwarf B binary systems have been measured using high precision radial velocity measurements from high S/N optical high-resolution spectra. In addition, two bright sdB stars are discovered to be radial velocity variable but the period could not yet be determined. The companions for all systems are unseen. The periods range from about 0.18 days up to more than ten days. The radial velocity semi amplitudes are found to lie between 15 and 130 km/s. Using the mass functions, the masses of the unseen companions have been constrained to lower limits of 0.03 up ","authors_text":"C. Karl, H. Edelmann, M. Altmann, T. Lisker, U. Heber","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2005-07-01T12:43:45Z","title":"High resolution spectroscopy of bright subdwarf B stars - I. Radial velocity variables"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0507024","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":"sha256:4dffcbbfec7aa2c16352ece244d93cccfd439c8c9f93d01d419ab80ca09c4d7f","target":"record","created_at":"2026-07-04T16:52:42Z","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":"afb7daa6a15b768ead0da603e066ee87dcef26372dae33f17927b2657a4d089b","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2005-07-01T12:43:45Z","title_canon_sha256":"045883c609ecf5f7842d6af40e064ba3f15c600163f5119726383ebb9babff5e"},"schema_version":"1.0","source":{"id":"astro-ph/0507024","kind":"arxiv","version":1}},"canonical_sha256":"b46d49c58063a9962a3d9f80e0c121e376768b4a647e878e598fe246037ea75f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b46d49c58063a9962a3d9f80e0c121e376768b4a647e878e598fe246037ea75f","first_computed_at":"2026-07-04T16:52:42.313011Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:52:42.313011Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4kACTtlh6XHFAj3Anq/rdUjlBGiIVGqLw7E4NAMbSThkUvm8Vm7OcHQZ7Ah/stpnkOTGi+AR88w5FZrFhprWDA==","signature_status":"signed_v1","signed_at":"2026-07-04T16:52:42.313372Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0507024","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4dffcbbfec7aa2c16352ece244d93cccfd439c8c9f93d01d419ab80ca09c4d7f","sha256:5a2e3525f280d39a83332131dcdd855bdbd6ceaa576d5966157bbf57e7cb12e0"],"state_sha256":"40aefab0ce025410a2558b107deb23a14135a7403ac37edb875dfc6b89dc6c8b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"491R5fam2v0N+Wu5vBjovWnr8ZT6onjvMrP0NIuRWGRi4wFakLldbZtUbwYLocISBnUiS7H+HO8NnQyI+oYNDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T05:13:16.134898Z","bundle_sha256":"79b0e865b39b65fbd36fd97867096288b61877f7af346500288756fee83372bb"}}