{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2012:N7RXG2DIF2UGKODMLAIHPODDZO","short_pith_number":"pith:N7RXG2DI","schema_version":"1.0","canonical_sha256":"6fe37368682ea865386c581077b863cb827ad776ea9fd40aba0b1db64f3cd5eb","source":{"kind":"arxiv","id":"1204.6608","version":2},"attestation_state":"computed","paper":{"title":"Modified Gravity Spins Up Galactic Halos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Baojiu Li (Durham, Cambridge), Gong-Bo Zhao (Portsmouth), Jounghun Lee (Seoul Nat'l U.), Kazuya Koyama (Portsmouth)","submitted_at":"2012-04-30T12:00:04Z","abstract_excerpt":"We investigate the effect of modified gravity on the specific angular momentum of galactic halos by analyzing the halo catalogs at z=0 from high-resolution N-body simulations for a f(R) gravity model that meets the solar-system constraint. It is shown that the galactic halos in the f(R) gravity model tend to acquire significantly higher specific angular momentum than those in the standard LCDM model. The largest difference in the specific angular momentum distribution between these two models occurs for the case of the isolated galactic halos with mass less than 10^{11}M_sun/h, which are likel"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1204.6608","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-04-30T12:00:04Z","cross_cats_sorted":[],"title_canon_sha256":"7f5e1e74c540bbb31cffdb6c918c74ef4773ca452e67f55c12b3d50981e37113","abstract_canon_sha256":"e5d5169d3348e41f5482903bb464d7a2f862754c3529d2cb1f8ba6c86e1f6db9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:57:42.422684Z","signature_b64":"mccMuLz8+rY+cEIU8oliVT+FkciX6M3/IUBmEvQKeh4PT4TNxwqeFmThpfdUsfqOx9RvSywf5t5MRp1lAs15Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6fe37368682ea865386c581077b863cb827ad776ea9fd40aba0b1db64f3cd5eb","last_reissued_at":"2026-05-18T01:57:42.421925Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:57:42.421925Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Modified Gravity Spins Up Galactic Halos","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Baojiu Li (Durham, Cambridge), Gong-Bo Zhao (Portsmouth), Jounghun Lee (Seoul Nat'l U.), Kazuya Koyama (Portsmouth)","submitted_at":"2012-04-30T12:00:04Z","abstract_excerpt":"We investigate the effect of modified gravity on the specific angular momentum of galactic halos by analyzing the halo catalogs at z=0 from high-resolution N-body simulations for a f(R) gravity model that meets the solar-system constraint. It is shown that the galactic halos in the f(R) gravity model tend to acquire significantly higher specific angular momentum than those in the standard LCDM model. The largest difference in the specific angular momentum distribution between these two models occurs for the case of the isolated galactic halos with mass less than 10^{11}M_sun/h, which are likel"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1204.6608","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1204.6608","created_at":"2026-05-18T01:57:42.422060+00:00"},{"alias_kind":"arxiv_version","alias_value":"1204.6608v2","created_at":"2026-05-18T01:57:42.422060+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1204.6608","created_at":"2026-05-18T01:57:42.422060+00:00"},{"alias_kind":"pith_short_12","alias_value":"N7RXG2DIF2UG","created_at":"2026-05-18T12:27:16.716162+00:00"},{"alias_kind":"pith_short_16","alias_value":"N7RXG2DIF2UGKODM","created_at":"2026-05-18T12:27:16.716162+00:00"},{"alias_kind":"pith_short_8","alias_value":"N7RXG2DI","created_at":"2026-05-18T12:27:16.716162+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO","json":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO.json","graph_json":"https://pith.science/api/pith-number/N7RXG2DIF2UGKODMLAIHPODDZO/graph.json","events_json":"https://pith.science/api/pith-number/N7RXG2DIF2UGKODMLAIHPODDZO/events.json","paper":"https://pith.science/paper/N7RXG2DI"},"agent_actions":{"view_html":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO","download_json":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO.json","view_paper":"https://pith.science/paper/N7RXG2DI","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1204.6608&json=true","fetch_graph":"https://pith.science/api/pith-number/N7RXG2DIF2UGKODMLAIHPODDZO/graph.json","fetch_events":"https://pith.science/api/pith-number/N7RXG2DIF2UGKODMLAIHPODDZO/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO/action/timestamp_anchor","attest_storage":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO/action/storage_attestation","attest_author":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO/action/author_attestation","sign_citation":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO/action/citation_signature","submit_replication":"https://pith.science/pith/N7RXG2DIF2UGKODMLAIHPODDZO/action/replication_record"}},"created_at":"2026-05-18T01:57:42.422060+00:00","updated_at":"2026-05-18T01:57:42.422060+00:00"}