{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:I735GKH34ND4ZVZNYRYQE6MPRO","short_pith_number":"pith:I735GKH3","canonical_record":{"source":{"id":"1611.08398","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-25T09:38:47Z","cross_cats_sorted":[],"title_canon_sha256":"abf44be2b611dd21c49c6c739ea9a8bb046378a73be72fd7b50116fe73cc6ec9","abstract_canon_sha256":"47a13ad2efa9ab0d6343cd7a5d7f834bc72852b00762896d60547ad96e4373dd"},"schema_version":"1.0"},"canonical_sha256":"47f7d328fbe347ccd72dc47102798f8b9f39565ff4ce07538c3b4b7592afa32b","source":{"kind":"arxiv","id":"1611.08398","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.08398","created_at":"2026-05-18T00:49:11Z"},{"alias_kind":"arxiv_version","alias_value":"1611.08398v3","created_at":"2026-05-18T00:49:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.08398","created_at":"2026-05-18T00:49:11Z"},{"alias_kind":"pith_short_12","alias_value":"I735GKH34ND4","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"I735GKH34ND4ZVZN","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"I735GKH3","created_at":"2026-05-18T12:30:22Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:I735GKH34ND4ZVZNYRYQE6MPRO","target":"record","payload":{"canonical_record":{"source":{"id":"1611.08398","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-25T09:38:47Z","cross_cats_sorted":[],"title_canon_sha256":"abf44be2b611dd21c49c6c739ea9a8bb046378a73be72fd7b50116fe73cc6ec9","abstract_canon_sha256":"47a13ad2efa9ab0d6343cd7a5d7f834bc72852b00762896d60547ad96e4373dd"},"schema_version":"1.0"},"canonical_sha256":"47f7d328fbe347ccd72dc47102798f8b9f39565ff4ce07538c3b4b7592afa32b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:11.442741Z","signature_b64":"wIQ5BhVI+KZ0HE2rQUdNAQHbWEC7OS1FkJaPCx4nbFJf6wOqjTlOHzY5uP2PDsdbuNPQbko8Ee6+sL7h44D0BQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"47f7d328fbe347ccd72dc47102798f8b9f39565ff4ce07538c3b4b7592afa32b","last_reissued_at":"2026-05-18T00:49:11.442161Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:11.442161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.08398","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:49:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ycm+gw6ctBk204Vw93fgLiEuR+t90FDSuOjyR4hM0mepGsePagAs6N/GCAaHSPrF/ATx/KcscUSzqxGckfu1BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:24:36.042627Z"},"content_sha256":"28accf70b422caccb47291ecae84306ee4f2c9adcbcc6b6bf75ea2c0350106eb","schema_version":"1.0","event_id":"sha256:28accf70b422caccb47291ecae84306ee4f2c9adcbcc6b6bf75ea2c0350106eb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:I735GKH34ND4ZVZNYRYQE6MPRO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A comparison between observed Algol-type double stars in the Solar neighborhood and evolutionary computations of galactic case A binaries with a B-type primary at birth","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"D. Vanbeveren, N. Mennekens","submitted_at":"2016-11-25T09:38:47Z","abstract_excerpt":"We first discuss a large set of evolutionary calculations of close binaries with a B-type primary at birth and with a period such that the Roche lobe overflow starts during the core hydrogen burning phase of the primary (intermediate mass and massive case A binaries). The evolution of both components is followed simultaneously allowing us to check for the occurrence of contact binaries. We consider various models to treat a contact system and the influence of these models on the predicted Algol-type system population is investigated. We critically discuss the available observations of Algol-ty"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.08398","kind":"arxiv","version":3},"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":"2026-05-18T00:49:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0QG7k/HHcxfXRW40WrmksIHzbCDwH8a56gp42saRcdK1Wc3rkKO1SFj2gfwWCuC1Be/CRwhMlB5lqNxqbszQDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:24:36.043013Z"},"content_sha256":"f136b46f3f3436c21533119a9121ad3fbf93a00fd30a0823d0732561c29e494c","schema_version":"1.0","event_id":"sha256:f136b46f3f3436c21533119a9121ad3fbf93a00fd30a0823d0732561c29e494c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I735GKH34ND4ZVZNYRYQE6MPRO/bundle.json","state_url":"https://pith.science/pith/I735GKH34ND4ZVZNYRYQE6MPRO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I735GKH34ND4ZVZNYRYQE6MPRO/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":"2026-06-03T02:24:36Z","links":{"resolver":"https://pith.science/pith/I735GKH34ND4ZVZNYRYQE6MPRO","bundle":"https://pith.science/pith/I735GKH34ND4ZVZNYRYQE6MPRO/bundle.json","state":"https://pith.science/pith/I735GKH34ND4ZVZNYRYQE6MPRO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I735GKH34ND4ZVZNYRYQE6MPRO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:I735GKH34ND4ZVZNYRYQE6MPRO","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":"47a13ad2efa9ab0d6343cd7a5d7f834bc72852b00762896d60547ad96e4373dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-25T09:38:47Z","title_canon_sha256":"abf44be2b611dd21c49c6c739ea9a8bb046378a73be72fd7b50116fe73cc6ec9"},"schema_version":"1.0","source":{"id":"1611.08398","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.08398","created_at":"2026-05-18T00:49:11Z"},{"alias_kind":"arxiv_version","alias_value":"1611.08398v3","created_at":"2026-05-18T00:49:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.08398","created_at":"2026-05-18T00:49:11Z"},{"alias_kind":"pith_short_12","alias_value":"I735GKH34ND4","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_16","alias_value":"I735GKH34ND4ZVZN","created_at":"2026-05-18T12:30:22Z"},{"alias_kind":"pith_short_8","alias_value":"I735GKH3","created_at":"2026-05-18T12:30:22Z"}],"graph_snapshots":[{"event_id":"sha256:f136b46f3f3436c21533119a9121ad3fbf93a00fd30a0823d0732561c29e494c","target":"graph","created_at":"2026-05-18T00:49:11Z","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":"We first discuss a large set of evolutionary calculations of close binaries with a B-type primary at birth and with a period such that the Roche lobe overflow starts during the core hydrogen burning phase of the primary (intermediate mass and massive case A binaries). The evolution of both components is followed simultaneously allowing us to check for the occurrence of contact binaries. We consider various models to treat a contact system and the influence of these models on the predicted Algol-type system population is investigated. We critically discuss the available observations of Algol-ty","authors_text":"D. Vanbeveren, N. Mennekens","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-25T09:38:47Z","title":"A comparison between observed Algol-type double stars in the Solar neighborhood and evolutionary computations of galactic case A binaries with a B-type primary at birth"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.08398","kind":"arxiv","version":3},"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":"sha256:28accf70b422caccb47291ecae84306ee4f2c9adcbcc6b6bf75ea2c0350106eb","target":"record","created_at":"2026-05-18T00:49:11Z","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":"47a13ad2efa9ab0d6343cd7a5d7f834bc72852b00762896d60547ad96e4373dd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2016-11-25T09:38:47Z","title_canon_sha256":"abf44be2b611dd21c49c6c739ea9a8bb046378a73be72fd7b50116fe73cc6ec9"},"schema_version":"1.0","source":{"id":"1611.08398","kind":"arxiv","version":3}},"canonical_sha256":"47f7d328fbe347ccd72dc47102798f8b9f39565ff4ce07538c3b4b7592afa32b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"47f7d328fbe347ccd72dc47102798f8b9f39565ff4ce07538c3b4b7592afa32b","first_computed_at":"2026-05-18T00:49:11.442161Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:49:11.442161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"wIQ5BhVI+KZ0HE2rQUdNAQHbWEC7OS1FkJaPCx4nbFJf6wOqjTlOHzY5uP2PDsdbuNPQbko8Ee6+sL7h44D0BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:49:11.442741Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.08398","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:28accf70b422caccb47291ecae84306ee4f2c9adcbcc6b6bf75ea2c0350106eb","sha256:f136b46f3f3436c21533119a9121ad3fbf93a00fd30a0823d0732561c29e494c"],"state_sha256":"980ba306ea4635579e2764f420162af78beb8b8a31a10ab7b5274fdd69c5f8d7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cRrh3DnXp7kEOQPDcKkGwj8jkGx1SxZisT+bLQYEAIv5KksCA4R716wNVHEKz9vfivSyDIxyvlCrCiqyftksBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T02:24:36.044986Z","bundle_sha256":"2b3e08d3884d1c4830ea8205e272d5d5acb00b33cd148b4d1bacadb139ae603d"}}