{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:ZT25QFSCIGAFMI2YVUWC64QOJM","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":"e1ac8a493c44c465233d0fb29cdbb6b484d69f3759a2ae8627d675826449f7d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-26T17:21:15Z","title_canon_sha256":"09e02f9317d4a9c7ff27f33c6c24da46e9ca6b347f298631e5203e9b31f2afbd"},"schema_version":"1.0","source":{"id":"1203.5735","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1203.5735","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"arxiv_version","alias_value":"1203.5735v2","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1203.5735","created_at":"2026-05-18T03:50:25Z"},{"alias_kind":"pith_short_12","alias_value":"ZT25QFSCIGAF","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_16","alias_value":"ZT25QFSCIGAFMI2Y","created_at":"2026-05-18T12:27:30Z"},{"alias_kind":"pith_short_8","alias_value":"ZT25QFSC","created_at":"2026-05-18T12:27:30Z"}],"graph_snapshots":[{"event_id":"sha256:60299bfde55a7b04fab2dad6c1b5bd3615dc6b0b53c883c765532ac83b605fb0","target":"graph","created_at":"2026-05-18T03:50:25Z","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 propose a phenomenological model in which a non-minimal coupling between gravity and dark matter is present in order to address some of the apparent small scales issues of \\lcdm model. When described in a frame in which gravity dynamics is given by the standard Einstein-Hilbert action, the non-minimal coupling translates into an effective pressure for the dark matter component. We consider some phenomenological examples and describe both background and linear perturbations. We show that the presence of an effective pressure may lead these scenarios to differ from \\lcdm at the scales where t","authors_text":"Carlo Baccigalupi, Dario Bettoni, Stefano Liberati, Valeria Pettorino","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-26T17:21:15Z","title":"Non-minimally coupled dark matter: effective pressure and structure formation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1203.5735","kind":"arxiv","version":2},"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:d6d8ec617e1bd705e8bdf6a6ac6227825e91c45962e603a53788b03432578b61","target":"record","created_at":"2026-05-18T03:50:25Z","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":"e1ac8a493c44c465233d0fb29cdbb6b484d69f3759a2ae8627d675826449f7d5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-03-26T17:21:15Z","title_canon_sha256":"09e02f9317d4a9c7ff27f33c6c24da46e9ca6b347f298631e5203e9b31f2afbd"},"schema_version":"1.0","source":{"id":"1203.5735","kind":"arxiv","version":2}},"canonical_sha256":"ccf5d816424180562358ad2c2f720e4b34c9479e121caa9ceca4a4bd53d298f9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ccf5d816424180562358ad2c2f720e4b34c9479e121caa9ceca4a4bd53d298f9","first_computed_at":"2026-05-18T03:50:25.269186Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:50:25.269186Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"u8TPSVy8OyLt5U+nrMi/p/Hlq+I/D5CaJbut0y/TdoLRG8HZSImCR4GcWuiUwF54iasbAWOpCTGtixX2WNJbAA==","signature_status":"signed_v1","signed_at":"2026-05-18T03:50:25.269976Z","signed_message":"canonical_sha256_bytes"},"source_id":"1203.5735","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6d8ec617e1bd705e8bdf6a6ac6227825e91c45962e603a53788b03432578b61","sha256:60299bfde55a7b04fab2dad6c1b5bd3615dc6b0b53c883c765532ac83b605fb0"],"state_sha256":"fd087e9f7363fbe456610731b4d0f6e6e9e734539f23c833af9985be9d658734"}