{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:FYQZUF4NYRRKV2OPVFEP72BGBE","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":"3adeef7511d025edc3c601f8ea86a522629b27b8b740b4ebc730f8a236a2b3ed","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-05-10T14:10:11Z","title_canon_sha256":"f685f740d51afe36d7ce94833ab5fda7adca815de930802bdca570d77ba9a150"},"schema_version":"1.0","source":{"id":"1105.1953","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1105.1953","created_at":"2026-05-18T02:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"1105.1953v1","created_at":"2026-05-18T02:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1105.1953","created_at":"2026-05-18T02:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"FYQZUF4NYRRK","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_16","alias_value":"FYQZUF4NYRRKV2OP","created_at":"2026-05-18T12:26:28Z"},{"alias_kind":"pith_short_8","alias_value":"FYQZUF4N","created_at":"2026-05-18T12:26:28Z"}],"graph_snapshots":[{"event_id":"sha256:b9e6ca45bd339e95f515698d332916585642e855f1340a0b1f17da3b0e6f2518","target":"graph","created_at":"2026-05-18T02:02:01Z","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":"Stars form with a complex and highly structured distribution. For a smooth star cluster to form from these initial conditions, the star cluster must erase this substructure. We study how substructure is removed using N-body simulations that realistically handle two-body relaxation. In contrast to previous studies, we find that hierarchical cluster formation occurs chiefly as a result of scattering of stars out of clumps, and not through clump merging. Two-body relaxation, in particular within the body of a clump, can significantly increase the rate at which substructure is erased beyond that o","authors_text":"M. Fellhauer, P. Assmann, R. Slater, R. Smith, S. Goodwin","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-05-10T14:10:11Z","title":"Formation rates of star clusters in the hierarchical merging scenario"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1105.1953","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:ff861f05d16e410cc9f7c8c551b2bd35890cc291d37e8c22d47cc1d1dcd507ff","target":"record","created_at":"2026-05-18T02:02:01Z","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":"3adeef7511d025edc3c601f8ea86a522629b27b8b740b4ebc730f8a236a2b3ed","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-05-10T14:10:11Z","title_canon_sha256":"f685f740d51afe36d7ce94833ab5fda7adca815de930802bdca570d77ba9a150"},"schema_version":"1.0","source":{"id":"1105.1953","kind":"arxiv","version":1}},"canonical_sha256":"2e219a178dc462aae9cfa948ffe826093b04b38367d50fb3c82be515db68cd89","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2e219a178dc462aae9cfa948ffe826093b04b38367d50fb3c82be515db68cd89","first_computed_at":"2026-05-18T02:02:01.953279Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:01.953279Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CdPkHNYdJ75Eru475ovryZ/f7/PxQ/b0jn9JEh3olJ1OgCSkV/c2gsTlSn40ERDLBK2irNbz9dmarMqD0mf1DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:01.954019Z","signed_message":"canonical_sha256_bytes"},"source_id":"1105.1953","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ff861f05d16e410cc9f7c8c551b2bd35890cc291d37e8c22d47cc1d1dcd507ff","sha256:b9e6ca45bd339e95f515698d332916585642e855f1340a0b1f17da3b0e6f2518"],"state_sha256":"df3a0cd529ded2fd5d678f667d9cae6c6d14a9ba9c5205b79f7466f7cbafb289"}