{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:DH7UBSGXYYSLXFVBUC4UMZMEL7","short_pith_number":"pith:DH7UBSGX","canonical_record":{"source":{"id":"1310.0189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-01T08:50:51Z","cross_cats_sorted":[],"title_canon_sha256":"9460af02e43537a64f1640650a165e7731a8158d471367d8aad3630a44c87f57","abstract_canon_sha256":"87f656febb819c3d5a2a35490c4318b9fc468f5e375a8e5c0f532d0c350414a6"},"schema_version":"1.0"},"canonical_sha256":"19ff40c8d7c624bb96a1a0b94665845fc48e2a949a75c0af7f98421eeb3c8d77","source":{"kind":"arxiv","id":"1310.0189","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.0189","created_at":"2026-05-18T03:11:45Z"},{"alias_kind":"arxiv_version","alias_value":"1310.0189v1","created_at":"2026-05-18T03:11:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.0189","created_at":"2026-05-18T03:11:45Z"},{"alias_kind":"pith_short_12","alias_value":"DH7UBSGXYYSL","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"DH7UBSGXYYSLXFVB","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"DH7UBSGX","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:DH7UBSGXYYSLXFVBUC4UMZMEL7","target":"record","payload":{"canonical_record":{"source":{"id":"1310.0189","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-01T08:50:51Z","cross_cats_sorted":[],"title_canon_sha256":"9460af02e43537a64f1640650a165e7731a8158d471367d8aad3630a44c87f57","abstract_canon_sha256":"87f656febb819c3d5a2a35490c4318b9fc468f5e375a8e5c0f532d0c350414a6"},"schema_version":"1.0"},"canonical_sha256":"19ff40c8d7c624bb96a1a0b94665845fc48e2a949a75c0af7f98421eeb3c8d77","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:11:45.226933Z","signature_b64":"6IHs9YfGGt27DJ7XyaZ9e2kPSKvxZL+n1SUSbkU6MtFFgIsyNebGdzvr/ukSaf+ZQK9VGAM8xIK3m4Vvho3iAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19ff40c8d7c624bb96a1a0b94665845fc48e2a949a75c0af7f98421eeb3c8d77","last_reissued_at":"2026-05-18T03:11:45.226139Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:11:45.226139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.0189","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":"2026-05-18T03:11:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"itnaTp8zJbcfTktOl6VT4UeIWyvlk6hvKsQwzy9Q9gRIrUPVAE0HRiwBdgxYPi015IelOwkQEHpXXArCGf9WCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:10:54.636426Z"},"content_sha256":"a2ae0902623070a60a240dede1a1e6d7a0244f6321cadd7d305974338ea54aa9","schema_version":"1.0","event_id":"sha256:a2ae0902623070a60a240dede1a1e6d7a0244f6321cadd7d305974338ea54aa9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:DH7UBSGXYYSLXFVBUC4UMZMEL7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Long period sdB + MS binaries with Mercator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"H. Van Winckel, J. Vos, R.H. {\\O}stensen","submitted_at":"2013-10-01T08:50:51Z","abstract_excerpt":"The predicted orbital period distribution of the subdwarf-B (sdB) population is bi-modal with a peak at short (< 10 days) and long (> 250 days) periods. Observationally, many short-period sdB systems are indeed known. The predicted long period peak is missing and orbits have only been determined for a few long-period systems. As these predictions are based on poorly understood binary-interaction processes, it is of prime importance to confront the predictions to well-constrained observational data. We therefore initiated a monitoring program to find and characterize long-period sdB stars with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.0189","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":""},"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":"2026-05-18T03:11:45Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pf4hpT25Wwyw4HDdUkPzElKYeno8LZxWmG94USDUzh/ke/ML/z0NV7dIhyk5Xp0hQeGlpW3vc147T/HWPIbECQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T16:10:54.637137Z"},"content_sha256":"32b0e70ba86ad6b8ab6e0e5d35c97138e821c9fb51a700a8f1ef6a14a39e6949","schema_version":"1.0","event_id":"sha256:32b0e70ba86ad6b8ab6e0e5d35c97138e821c9fb51a700a8f1ef6a14a39e6949"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DH7UBSGXYYSLXFVBUC4UMZMEL7/bundle.json","state_url":"https://pith.science/pith/DH7UBSGXYYSLXFVBUC4UMZMEL7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DH7UBSGXYYSLXFVBUC4UMZMEL7/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":"2026-05-25T16:10:54Z","links":{"resolver":"https://pith.science/pith/DH7UBSGXYYSLXFVBUC4UMZMEL7","bundle":"https://pith.science/pith/DH7UBSGXYYSLXFVBUC4UMZMEL7/bundle.json","state":"https://pith.science/pith/DH7UBSGXYYSLXFVBUC4UMZMEL7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DH7UBSGXYYSLXFVBUC4UMZMEL7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:DH7UBSGXYYSLXFVBUC4UMZMEL7","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":"87f656febb819c3d5a2a35490c4318b9fc468f5e375a8e5c0f532d0c350414a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-01T08:50:51Z","title_canon_sha256":"9460af02e43537a64f1640650a165e7731a8158d471367d8aad3630a44c87f57"},"schema_version":"1.0","source":{"id":"1310.0189","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.0189","created_at":"2026-05-18T03:11:45Z"},{"alias_kind":"arxiv_version","alias_value":"1310.0189v1","created_at":"2026-05-18T03:11:45Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.0189","created_at":"2026-05-18T03:11:45Z"},{"alias_kind":"pith_short_12","alias_value":"DH7UBSGXYYSL","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"DH7UBSGXYYSLXFVB","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"DH7UBSGX","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:32b0e70ba86ad6b8ab6e0e5d35c97138e821c9fb51a700a8f1ef6a14a39e6949","target":"graph","created_at":"2026-05-18T03:11:45Z","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"},"paper":{"abstract_excerpt":"The predicted orbital period distribution of the subdwarf-B (sdB) population is bi-modal with a peak at short (< 10 days) and long (> 250 days) periods. Observationally, many short-period sdB systems are indeed known. The predicted long period peak is missing and orbits have only been determined for a few long-period systems. As these predictions are based on poorly understood binary-interaction processes, it is of prime importance to confront the predictions to well-constrained observational data. We therefore initiated a monitoring program to find and characterize long-period sdB stars with ","authors_text":"H. Van Winckel, J. Vos, R.H. {\\O}stensen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-01T08:50:51Z","title":"Long period sdB + MS binaries with Mercator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.0189","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:a2ae0902623070a60a240dede1a1e6d7a0244f6321cadd7d305974338ea54aa9","target":"record","created_at":"2026-05-18T03:11:45Z","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":"87f656febb819c3d5a2a35490c4318b9fc468f5e375a8e5c0f532d0c350414a6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-10-01T08:50:51Z","title_canon_sha256":"9460af02e43537a64f1640650a165e7731a8158d471367d8aad3630a44c87f57"},"schema_version":"1.0","source":{"id":"1310.0189","kind":"arxiv","version":1}},"canonical_sha256":"19ff40c8d7c624bb96a1a0b94665845fc48e2a949a75c0af7f98421eeb3c8d77","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19ff40c8d7c624bb96a1a0b94665845fc48e2a949a75c0af7f98421eeb3c8d77","first_computed_at":"2026-05-18T03:11:45.226139Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:11:45.226139Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6IHs9YfGGt27DJ7XyaZ9e2kPSKvxZL+n1SUSbkU6MtFFgIsyNebGdzvr/ukSaf+ZQK9VGAM8xIK3m4Vvho3iAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:11:45.226933Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.0189","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a2ae0902623070a60a240dede1a1e6d7a0244f6321cadd7d305974338ea54aa9","sha256:32b0e70ba86ad6b8ab6e0e5d35c97138e821c9fb51a700a8f1ef6a14a39e6949"],"state_sha256":"00ed3c50e17ec5272a56724b7bacabc7c0741762bd934d3face429da7e175a05"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nSoVnk2mZydkzj7JIHMDAeGzibaTf007bamSiMrQ04BM2K5c2PIyrGdcGR/ivIconH4BIc/lSSyjyGp41zJtBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T16:10:54.640264Z","bundle_sha256":"4057d8b78082224afba09e37d884dfabab1714cfa419bfd0860b16b20a315fb8"}}