{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1999:EUS4IR64RXQCP6H7DJHUWZKTBQ","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":"77b558b1eedbc4ce9e6947fc4753f7640781ffa37d3a51516041f93f95c468d5","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-12-30T10:20:57Z","title_canon_sha256":"c7ea2cc752c3ef1710636e2e28d5e9c1ad6d54f7d0fdd74089bf0b9f5e85205c"},"schema_version":"1.0","source":{"id":"astro-ph/9912552","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/9912552","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9912552v1","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9912552","created_at":"2026-05-18T01:07:35Z"},{"alias_kind":"pith_short_12","alias_value":"EUS4IR64RXQC","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"EUS4IR64RXQCP6H7","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"EUS4IR64","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:a93def9ddcae2acbe7af36f63172accfe696d47ed683d682b86ccb952d0a4c30","target":"graph","created_at":"2026-05-18T01:07:35Z","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":"This paper is a continuation and development of our previous articles (Popov et al., 1997, 1998). We use `Scenario Machine'' (Lipunov et al., 1996b) -- the population synthesis simulator (for single binary systems calculations the program is available in WWW: http://xray.sai.msu.ru/ (Nazin et al., 1998)) -- to calculate evolution of populations of several types of X-ray sources during the first 20 Myrs after a starformation burst.\n  We examined the evolution of 12 types of X-ray sources in close binary systems (both with neutron stars and with black holes) for different parameters of the IMF -","authors_text":"M.E. Prokhorov, S.B. Popov, V.M. Lipunov (Sternberg Astronomical Institute)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"1999-12-30T10:20:57Z","title":"IMF and evolution of close binaries after starformation bursts"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9912552","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:e804f10f6c60263743a7e9f1615d93cbfa7cccedfc88531fd5bfac5f286a18e8","target":"record","created_at":"2026-05-18T01:07:35Z","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":"77b558b1eedbc4ce9e6947fc4753f7640781ffa37d3a51516041f93f95c468d5","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"1999-12-30T10:20:57Z","title_canon_sha256":"c7ea2cc752c3ef1710636e2e28d5e9c1ad6d54f7d0fdd74089bf0b9f5e85205c"},"schema_version":"1.0","source":{"id":"astro-ph/9912552","kind":"arxiv","version":1}},"canonical_sha256":"2525c447dc8de027f8ff1a4f4b65530c0e3ef90de2649e1cde3afeafd4fea660","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2525c447dc8de027f8ff1a4f4b65530c0e3ef90de2649e1cde3afeafd4fea660","first_computed_at":"2026-05-18T01:07:35.653562Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:35.653562Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JRAykksTEnN/oC92ZSqby6QOPFNxpz8axqCCsyx9XV8QKJqer1WC+OGyIX7yzpiP5RW516pelfau5nJcslwrAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:35.654206Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/9912552","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e804f10f6c60263743a7e9f1615d93cbfa7cccedfc88531fd5bfac5f286a18e8","sha256:a93def9ddcae2acbe7af36f63172accfe696d47ed683d682b86ccb952d0a4c30"],"state_sha256":"6e592f8b6091bad7883ed442f89178961f7cb0925e2ccc26df06f354d4bf1903"}