{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:7YIXUX37GCXIKJQU7MAUE2H4F6","short_pith_number":"pith:7YIXUX37","schema_version":"1.0","canonical_sha256":"fe117a5f7f30ae852614fb014268fc2fa6641eb779c4bfea977f79988afb8067","source":{"kind":"arxiv","id":"1106.4909","version":1},"attestation_state":"computed","paper":{"title":"The globular cluster NGC 2419: a crucible for theories of gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"A. Sollima, C. Nipoti, E. Dalessandro, M. Bellazzini, R. Ibata, S.C. Chapman","submitted_at":"2011-06-24T08:42:56Z","abstract_excerpt":"We present the analysis of a kinematic data set of stars in the globular cluster NGC 2419, taken with Keck/DEIMOS. Combined with a reanalysis of deep HST and Subaru imaging data, which provide an accurate luminosity profile of the cluster, we investigate the validity of a large set of dynamical models of the system, which are checked for stability via N-body simulations. We find that isotropic models in either Newtonian or Modified Newtonian Dynamics (MOND) are ruled out with extremely high confidence. However, a simple Michie model in Newtonian gravity with anisotropic velocity dispersion pro"},"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":"1106.4909","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2011-06-24T08:42:56Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"7fadcd4fe843baa29866f14f44efcd07c9120dacfcedf8dbdfa670d78d6ebfcc","abstract_canon_sha256":"5a48538e9d913770b5e54f41fda53b0b3e546ae63ea5c5ee6479987004acc226"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:01:31.213060Z","signature_b64":"WS97/XX1xOJSGLJ5FJLSd9IjFc3qdO+Lov1WoUe9g8+dhqDhbVGftmnkyhyrXVPXjOHx3nMmZFniIeWchaG5Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fe117a5f7f30ae852614fb014268fc2fa6641eb779c4bfea977f79988afb8067","last_reissued_at":"2026-05-18T02:01:31.212346Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:01:31.212346Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The globular cluster NGC 2419: a crucible for theories of gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.CO","authors_text":"A. Sollima, C. Nipoti, E. Dalessandro, M. Bellazzini, R. Ibata, S.C. Chapman","submitted_at":"2011-06-24T08:42:56Z","abstract_excerpt":"We present the analysis of a kinematic data set of stars in the globular cluster NGC 2419, taken with Keck/DEIMOS. Combined with a reanalysis of deep HST and Subaru imaging data, which provide an accurate luminosity profile of the cluster, we investigate the validity of a large set of dynamical models of the system, which are checked for stability via N-body simulations. We find that isotropic models in either Newtonian or Modified Newtonian Dynamics (MOND) are ruled out with extremely high confidence. However, a simple Michie model in Newtonian gravity with anisotropic velocity dispersion pro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1106.4909","kind":"arxiv","version":1},"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":"1106.4909","created_at":"2026-05-18T02:01:31.212465+00:00"},{"alias_kind":"arxiv_version","alias_value":"1106.4909v1","created_at":"2026-05-18T02:01:31.212465+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1106.4909","created_at":"2026-05-18T02:01:31.212465+00:00"},{"alias_kind":"pith_short_12","alias_value":"7YIXUX37GCXI","created_at":"2026-05-18T12:26:22.705136+00:00"},{"alias_kind":"pith_short_16","alias_value":"7YIXUX37GCXIKJQU","created_at":"2026-05-18T12:26:22.705136+00:00"},{"alias_kind":"pith_short_8","alias_value":"7YIXUX37","created_at":"2026-05-18T12:26:22.705136+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/7YIXUX37GCXIKJQU7MAUE2H4F6","json":"https://pith.science/pith/7YIXUX37GCXIKJQU7MAUE2H4F6.json","graph_json":"https://pith.science/api/pith-number/7YIXUX37GCXIKJQU7MAUE2H4F6/graph.json","events_json":"https://pith.science/api/pith-number/7YIXUX37GCXIKJQU7MAUE2H4F6/events.json","paper":"https://pith.science/paper/7YIXUX37"},"agent_actions":{"view_html":"https://pith.science/pith/7YIXUX37GCXIKJQU7MAUE2H4F6","download_json":"https://pith.science/pith/7YIXUX37GCXIKJQU7MAUE2H4F6.json","view_paper":"https://pith.science/paper/7YIXUX37","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1106.4909&json=true","fetch_graph":"https://pith.science/api/pith-number/7YIXUX37GCXIKJQU7MAUE2H4F6/graph.json","fetch_events":"https://pith.science/api/pith-number/7YIXUX37GCXIKJQU7MAUE2H4F6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7YIXUX37GCXIKJQU7MAUE2H4F6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7YIXUX37GCXIKJQU7MAUE2H4F6/action/storage_attestation","attest_author":"https://pith.science/pith/7YIXUX37GCXIKJQU7MAUE2H4F6/action/author_attestation","sign_citation":"https://pith.science/pith/7YIXUX37GCXIKJQU7MAUE2H4F6/action/citation_signature","submit_replication":"https://pith.science/pith/7YIXUX37GCXIKJQU7MAUE2H4F6/action/replication_record"}},"created_at":"2026-05-18T02:01:31.212465+00:00","updated_at":"2026-05-18T02:01:31.212465+00:00"}