{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2000:DXKJ7555JXFYG35HUR6HUSX5DY","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":"e8fe90ad5509db01d732114ce1462770ea422ed4bdce704780c015ba92fce620","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-05-11T15:19:13Z","title_canon_sha256":"7e43071d651befe9659b3a44068d3f7fdb7544202da862f663c94688dab882fa"},"schema_version":"1.0","source":{"id":"astro-ph/0005248","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0005248","created_at":"2026-05-18T01:40:47Z"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0005248v1","created_at":"2026-05-18T01:40:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0005248","created_at":"2026-05-18T01:40:47Z"},{"alias_kind":"pith_short_12","alias_value":"DXKJ7555JXFY","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"DXKJ7555JXFYG35H","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"DXKJ7555","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:274818b52b14550b8789f32cc2aaa95b76aac79a6f9bdbb4b539f99eba7de066","target":"graph","created_at":"2026-05-18T01:40:47Z","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 evolution of star clusters is studied using N-body simulations in which the evolution of single stars and binaries are taken self-consistently into account. Initial conditions are chosen to represent relatively young Galactic open clusters, such as the Pleiades, Praesepe and the Hyades. The calculations include a realistic mass function, primordial binaries and the external potential of the parent Galaxy. Our model clusters are generally significantly flattened in the Galactic tidal field, and dissolve before deep core collapse occurs. The binary fraction decreases initially due to the des","authors_text":"Junichiro Makino (Tokyo), Piet Hut (IAS), Simon F. Portegies Zwart (BU), Stephen L. W. McMillan (Drexel)","cross_cats":[],"headline":"","license":"","primary_cat":"astro-ph","submitted_at":"2000-05-11T15:19:13Z","title":"Star cluster ecology IVa: Dissection of an open star cluster---photometry"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0005248","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":"sha256:8d8cd15621e665d54288c54bd003b6adc0d235eed512cea122e0db8e1e9ffea2","target":"record","created_at":"2026-05-18T01:40:47Z","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":"e8fe90ad5509db01d732114ce1462770ea422ed4bdce704780c015ba92fce620","cross_cats_sorted":[],"license":"","primary_cat":"astro-ph","submitted_at":"2000-05-11T15:19:13Z","title_canon_sha256":"7e43071d651befe9659b3a44068d3f7fdb7544202da862f663c94688dab882fa"},"schema_version":"1.0","source":{"id":"astro-ph/0005248","kind":"arxiv","version":1}},"canonical_sha256":"1dd49ff7bd4dcb836fa7a47c7a4afd1e0270c7c7c92313e5ca27f9a073997d15","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1dd49ff7bd4dcb836fa7a47c7a4afd1e0270c7c7c92313e5ca27f9a073997d15","first_computed_at":"2026-05-18T01:40:47.848526Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:40:47.848526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rhOcJrcIGjHhUqAz5WjYW3tONJ6i2C9U6H+lycvCc4YtF7LMMjfU+I/r3p17k5p01jq3gOyFJPUSTgwlcIxuCg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:40:47.849167Z","signed_message":"canonical_sha256_bytes"},"source_id":"astro-ph/0005248","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8d8cd15621e665d54288c54bd003b6adc0d235eed512cea122e0db8e1e9ffea2","sha256:274818b52b14550b8789f32cc2aaa95b76aac79a6f9bdbb4b539f99eba7de066"],"state_sha256":"345d03885645b095704e88a7e4a1eeaa52236986c9fcca4e62bfe1294f413d7b"}