{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:V7EBSPDPTODDX72TUZYMIWDECW","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":"197dc7f511f05bcafb4787b996e9dc9b5ef739ec88f0daff0b9582ad2e9c2b18","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-14T15:57:03Z","title_canon_sha256":"153aa3e02b0ca90abf6ba8c50422d0a4f449f7ebd51347b1b920e8855cef336b"},"schema_version":"1.0","source":{"id":"1103.2698","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1103.2698","created_at":"2026-05-18T02:02:53Z"},{"alias_kind":"arxiv_version","alias_value":"1103.2698v1","created_at":"2026-05-18T02:02:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1103.2698","created_at":"2026-05-18T02:02:53Z"},{"alias_kind":"pith_short_12","alias_value":"V7EBSPDPTODD","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_16","alias_value":"V7EBSPDPTODDX72T","created_at":"2026-05-18T12:26:42Z"},{"alias_kind":"pith_short_8","alias_value":"V7EBSPDP","created_at":"2026-05-18T12:26:42Z"}],"graph_snapshots":[{"event_id":"sha256:c457e1ff23d532df0375ba88d498f175041d1a809a6304600ea2b9cbf86bffbf","target":"graph","created_at":"2026-05-18T02:02:53Z","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 study the growth of perturbations in an expanding Newtonian universe with Bose-Einstein condensate dark matter. We first ignore special relativistic effects and derive a differential equation governing the evolution of the density contrast in the linear regime taking into account quantum pressure and self-interaction. This equation can be solved analytically in several cases. We argue that an attractive self-interaction can enhance the Jeans instability and fasten the formation of structures. Then, we take into account pressure effects (coming from special relativity) in the evolution of th","authors_text":"Pierre-Henri Chavanis","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-14T15:57:03Z","title":"Growth of perturbations in an expanding universe with Bose-Einstein condensate dark matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.2698","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:f77ef7304fc45e2e7cc5dd308a12db3ac2bba4c9afa8a32532964b95e1fee3ac","target":"record","created_at":"2026-05-18T02:02:53Z","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":"197dc7f511f05bcafb4787b996e9dc9b5ef739ec88f0daff0b9582ad2e9c2b18","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-03-14T15:57:03Z","title_canon_sha256":"153aa3e02b0ca90abf6ba8c50422d0a4f449f7ebd51347b1b920e8855cef336b"},"schema_version":"1.0","source":{"id":"1103.2698","kind":"arxiv","version":1}},"canonical_sha256":"afc8193c6f9b863bff53a670c4586415bb0a3e4735aeac756588d2b2cb391c36","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"afc8193c6f9b863bff53a670c4586415bb0a3e4735aeac756588d2b2cb391c36","first_computed_at":"2026-05-18T02:02:53.783612Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:53.783612Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"CUgTeAZREsL3qBBayh60m6DZD9wikr44NKnFM9OeWr9u3FFyqNXApe/g4kIVnykfRLwIL06viEQtYMh8GptZCg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:53.784155Z","signed_message":"canonical_sha256_bytes"},"source_id":"1103.2698","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f77ef7304fc45e2e7cc5dd308a12db3ac2bba4c9afa8a32532964b95e1fee3ac","sha256:c457e1ff23d532df0375ba88d498f175041d1a809a6304600ea2b9cbf86bffbf"],"state_sha256":"32bec086e5dd372bac00251b88cd1691edfaa750f027ba792f69a97d37840264"}