{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:3MSMXIJ2YN2OCRJ2BY4OLKD5M6","short_pith_number":"pith:3MSMXIJ2","canonical_record":{"source":{"id":"1811.00285","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-01T08:54:43Z","cross_cats_sorted":[],"title_canon_sha256":"bab8836cecd9b853f689fc686b6ee1794017a628e4ffd260a7a40607fb5f454b","abstract_canon_sha256":"7a5cf7f9f9f41f7cdc38091d494ddbb586cfd054883fd288c4eb9058fbb4942c"},"schema_version":"1.0"},"canonical_sha256":"db24cba13ac374e1453a0e38e5a87d679b1b6f559a032f7bdfbf8e5795c8c154","source":{"kind":"arxiv","id":"1811.00285","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.00285","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1811.00285v1","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.00285","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"3MSMXIJ2YN2O","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"pith_short_16","alias_value":"3MSMXIJ2YN2OCRJ2","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"pith_short_8","alias_value":"3MSMXIJ2","created_at":"2026-07-05T06:16:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:3MSMXIJ2YN2OCRJ2BY4OLKD5M6","target":"record","payload":{"canonical_record":{"source":{"id":"1811.00285","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-01T08:54:43Z","cross_cats_sorted":[],"title_canon_sha256":"bab8836cecd9b853f689fc686b6ee1794017a628e4ffd260a7a40607fb5f454b","abstract_canon_sha256":"7a5cf7f9f9f41f7cdc38091d494ddbb586cfd054883fd288c4eb9058fbb4942c"},"schema_version":"1.0"},"canonical_sha256":"db24cba13ac374e1453a0e38e5a87d679b1b6f559a032f7bdfbf8e5795c8c154","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:16:07.315561Z","signature_b64":"kGyPgZdb3XNi+zIVwySlpzNbne2jroeqGXoEqSfmUY6p3xJW2R+aH7QInDd68sY6VCJgGI+HmHHozAQjlKXOBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"db24cba13ac374e1453a0e38e5a87d679b1b6f559a032f7bdfbf8e5795c8c154","last_reissued_at":"2026-07-05T06:16:07.315081Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:16:07.315081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.00285","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":"2026-07-05T06:16:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nou0p2dsoEknxwsyuWHLF4s3ZjNxmmDevYt9F8AgsAeMivQUPZGWghbIfVKIbeGiQazoEFa73khWFaTjN0G+DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T14:12:08.087005Z"},"content_sha256":"298a5fc636bc08ea74103deb1d5e9e28d827e41e74b96e720a312e80cc117764","schema_version":"1.0","event_id":"sha256:298a5fc636bc08ea74103deb1d5e9e28d827e41e74b96e720a312e80cc117764"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:3MSMXIJ2YN2OCRJ2BY4OLKD5M6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The orbital period -- mass ratio relation of wide sdB+MS binaries and its application to the stability of RLOF","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Brad N. Barlow, Emily Boudreaux, Joris Vos, Maja Vuckovi\\'c, P\\'eter N\\'emeth, Roy {\\O}stensen, Xuefei Chen, Zhanwen Han","submitted_at":"2018-11-01T08:54:43Z","abstract_excerpt":"Wide binaries with hot subdwarf-B (sdB) primaries and main sequence companions are thought to form only through stable Roche lobe overflow (RLOF) of the sdB progenitor near the tip of the red giant branch (RGB). We present the orbital parameters of eleven new long period composite sdB binaries based on spectroscopic observations obtained with the UVES, FEROS and CHIRON spectrographs. Using all wide sdB binaries with known orbital parameters, 23 systems, the observed period distribution is found to match very well with theoretical predictions. A second result is the strong correlation between t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.00285","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/1811.00285/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":"2026-07-05T06:16:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wJRLlLGU80+U4z+pIjt5b++cmok5NfXi1mncY8IKhUg4tCv/ufVQWrYtat2YkxJKejloox0KPPokE4x3ogKTDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T14:12:08.087667Z"},"content_sha256":"a7b3585f0f83d9d33bcd3e330752be04f83dc0e5b36cd4c526e11b131be7603c","schema_version":"1.0","event_id":"sha256:a7b3585f0f83d9d33bcd3e330752be04f83dc0e5b36cd4c526e11b131be7603c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3MSMXIJ2YN2OCRJ2BY4OLKD5M6/bundle.json","state_url":"https://pith.science/pith/3MSMXIJ2YN2OCRJ2BY4OLKD5M6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3MSMXIJ2YN2OCRJ2BY4OLKD5M6/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":"2026-07-05T14:12:08Z","links":{"resolver":"https://pith.science/pith/3MSMXIJ2YN2OCRJ2BY4OLKD5M6","bundle":"https://pith.science/pith/3MSMXIJ2YN2OCRJ2BY4OLKD5M6/bundle.json","state":"https://pith.science/pith/3MSMXIJ2YN2OCRJ2BY4OLKD5M6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3MSMXIJ2YN2OCRJ2BY4OLKD5M6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:3MSMXIJ2YN2OCRJ2BY4OLKD5M6","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":"7a5cf7f9f9f41f7cdc38091d494ddbb586cfd054883fd288c4eb9058fbb4942c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-01T08:54:43Z","title_canon_sha256":"bab8836cecd9b853f689fc686b6ee1794017a628e4ffd260a7a40607fb5f454b"},"schema_version":"1.0","source":{"id":"1811.00285","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.00285","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"arxiv_version","alias_value":"1811.00285v1","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.00285","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"pith_short_12","alias_value":"3MSMXIJ2YN2O","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"pith_short_16","alias_value":"3MSMXIJ2YN2OCRJ2","created_at":"2026-07-05T06:16:07Z"},{"alias_kind":"pith_short_8","alias_value":"3MSMXIJ2","created_at":"2026-07-05T06:16:07Z"}],"graph_snapshots":[{"event_id":"sha256:a7b3585f0f83d9d33bcd3e330752be04f83dc0e5b36cd4c526e11b131be7603c","target":"graph","created_at":"2026-07-05T06:16:07Z","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/1811.00285/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Wide binaries with hot subdwarf-B (sdB) primaries and main sequence companions are thought to form only through stable Roche lobe overflow (RLOF) of the sdB progenitor near the tip of the red giant branch (RGB). We present the orbital parameters of eleven new long period composite sdB binaries based on spectroscopic observations obtained with the UVES, FEROS and CHIRON spectrographs. Using all wide sdB binaries with known orbital parameters, 23 systems, the observed period distribution is found to match very well with theoretical predictions. A second result is the strong correlation between t","authors_text":"Brad N. Barlow, Emily Boudreaux, Joris Vos, Maja Vuckovi\\'c, P\\'eter N\\'emeth, Roy {\\O}stensen, Xuefei Chen, Zhanwen Han","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-01T08:54:43Z","title":"The orbital period -- mass ratio relation of wide sdB+MS binaries and its application to the stability of RLOF"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.00285","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":"sha256:298a5fc636bc08ea74103deb1d5e9e28d827e41e74b96e720a312e80cc117764","target":"record","created_at":"2026-07-05T06:16:07Z","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":"7a5cf7f9f9f41f7cdc38091d494ddbb586cfd054883fd288c4eb9058fbb4942c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-11-01T08:54:43Z","title_canon_sha256":"bab8836cecd9b853f689fc686b6ee1794017a628e4ffd260a7a40607fb5f454b"},"schema_version":"1.0","source":{"id":"1811.00285","kind":"arxiv","version":1}},"canonical_sha256":"db24cba13ac374e1453a0e38e5a87d679b1b6f559a032f7bdfbf8e5795c8c154","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"db24cba13ac374e1453a0e38e5a87d679b1b6f559a032f7bdfbf8e5795c8c154","first_computed_at":"2026-07-05T06:16:07.315081Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:16:07.315081Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"kGyPgZdb3XNi+zIVwySlpzNbne2jroeqGXoEqSfmUY6p3xJW2R+aH7QInDd68sY6VCJgGI+HmHHozAQjlKXOBA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:16:07.315561Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.00285","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:298a5fc636bc08ea74103deb1d5e9e28d827e41e74b96e720a312e80cc117764","sha256:a7b3585f0f83d9d33bcd3e330752be04f83dc0e5b36cd4c526e11b131be7603c"],"state_sha256":"568bf4330377f434dce10e59a024fee8ae3d6741aab001356013bc0a14366a7d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C9ctZ/ZUD2IQr6kUTBwyKdQgBemX5w9jaWj5OLxDL2RM5empK+JZSVjv8M1F3pSs5/N5d0ZVU+aSuv8NXfZQCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T14:12:08.091262Z","bundle_sha256":"040432d26bbca4c1a8bcb8c50f67819b5d09892b1d75c72e284c4b6bc9a3a6ce"}}