{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:JCIRKO35V7QWT5ETBIAPIDEO3L","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":"fbe252f3c36db56ebd68f9e8a230ca45a6ee711830173994fead995e36fffa4e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-16T09:30:27Z","title_canon_sha256":"059d1bea7fd5c08b4e1ebcddc9ede66c5986836196264e56c3ad3c9d3b6828e4"},"schema_version":"1.0","source":{"id":"1201.3185","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.3185","created_at":"2026-05-18T01:58:48Z"},{"alias_kind":"arxiv_version","alias_value":"1201.3185v1","created_at":"2026-05-18T01:58:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.3185","created_at":"2026-05-18T01:58:48Z"},{"alias_kind":"pith_short_12","alias_value":"JCIRKO35V7QW","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JCIRKO35V7QWT5ET","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JCIRKO35","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:957c89ad2c9d4836c51950ffa0f5ce7e1caf83f3bd9c63697946775831225d8e","target":"graph","created_at":"2026-05-18T01:58:48Z","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":"Here we present a new particle-mesh galactic N-body code that uses the full multigrid algorithm for solving the modified Poisson equation of the Quasi Linear formulation of Modified Newtonian Dynamics (QUMOND). A novel approach for handling the boundary conditions using a refinement strategy is implemented and the accuracy of the code is compared with analytical solutions of Kuzmin disks. We then employ the code to compute the predicted rotation curves for a sample of five spiral galaxies from the THINGS sample. We generated static N-body realisations of the galaxies according to their stellar","authors_text":"Benoit Famaey, Garry W. Angus, Gianfranco Gentile, Kurt van der Heyden, Stacy S. McGaugh, W. J. G. de Blok","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-16T09:30:27Z","title":"A QUMOND galactic N-body code I: Poisson solver and rotation curve fitting"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.3185","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":"sha256:35d016faf8851cb71d03f4c5dc47566d348a8fb39fdffba2d2585057c16266ab","target":"record","created_at":"2026-05-18T01:58:48Z","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":"fbe252f3c36db56ebd68f9e8a230ca45a6ee711830173994fead995e36fffa4e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2012-01-16T09:30:27Z","title_canon_sha256":"059d1bea7fd5c08b4e1ebcddc9ede66c5986836196264e56c3ad3c9d3b6828e4"},"schema_version":"1.0","source":{"id":"1201.3185","kind":"arxiv","version":1}},"canonical_sha256":"4891153b7dafe169f4930a00f40c8edaf80bab3a731b89541fa3136cb4176c5a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4891153b7dafe169f4930a00f40c8edaf80bab3a731b89541fa3136cb4176c5a","first_computed_at":"2026-05-18T01:58:48.952126Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:58:48.952126Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mQZoBHSfOVYku8JpRon9fkLOYY2geULANbQYdige0V5MDkwU/yZ9fsPERD62Dm/hh8WevlGyc/UCf4koGRWsDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:58:48.952759Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.3185","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:35d016faf8851cb71d03f4c5dc47566d348a8fb39fdffba2d2585057c16266ab","sha256:957c89ad2c9d4836c51950ffa0f5ce7e1caf83f3bd9c63697946775831225d8e"],"state_sha256":"70dcfd67b729c441ba00e9b40861c5ede7a78f746ca35097fa1de2dd80d0104c"}