{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:EVQNVRI5N2QDMHSADP3V36AZVP","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":"6c98a5e5325c1368963e2ce9e5dbcafcbea994521e1c0a1a9b0b0f03aa5d2ad2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-17T19:01:03Z","title_canon_sha256":"29914df0c77d7e9c4b72d3a73767a2e823f4be0a178cfd18d40bd64a05705ad2"},"schema_version":"1.0","source":{"id":"1701.04833","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1701.04833","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"arxiv_version","alias_value":"1701.04833v2","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1701.04833","created_at":"2026-05-18T00:36:03Z"},{"alias_kind":"pith_short_12","alias_value":"EVQNVRI5N2QD","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_16","alias_value":"EVQNVRI5N2QDMHSA","created_at":"2026-05-18T12:31:12Z"},{"alias_kind":"pith_short_8","alias_value":"EVQNVRI5","created_at":"2026-05-18T12:31:12Z"}],"graph_snapshots":[{"event_id":"sha256:3f0f49182db57498afc848f2337ec25a1dee5d96d9aed40da63356aae108bd57","target":"graph","created_at":"2026-05-18T00:36:03Z","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 present a new non-parametric Jeans code, GravSphere, that recovers the density $\\rho(r)$ and velocity anisotropy $\\beta(r)$ of spherical stellar systems, assuming only that they are in a steady-state. Using a large suite of mock data, we confirm that with only line-of-sight velocity data, GravSphere provides a good estimate of the density at the projected stellar half mass radius, $\\rho(R_{1/2})$, but is not able to measure $\\rho(r)$ or $\\beta(r)$, even with 10,000 tracer stars. We then test three popular methods for breaking this $\\rho-\\beta$ degeneracy: using multiple populations with dif","authors_text":"J. I. Read, P. Steger","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-17T19:01:03Z","title":"How to break the density-anisotropy degeneracy in spherical stellar systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1701.04833","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":"sha256:16d15f033bb66938c1ae297a82dd1358aabc389c51ae7d60ac0a85fbc1dd1c9a","target":"record","created_at":"2026-05-18T00:36:03Z","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":"6c98a5e5325c1368963e2ce9e5dbcafcbea994521e1c0a1a9b0b0f03aa5d2ad2","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-01-17T19:01:03Z","title_canon_sha256":"29914df0c77d7e9c4b72d3a73767a2e823f4be0a178cfd18d40bd64a05705ad2"},"schema_version":"1.0","source":{"id":"1701.04833","kind":"arxiv","version":2}},"canonical_sha256":"2560dac51d6ea0361e401bf75df819abeea5c735249280b74fb6dcd5c0fba81c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2560dac51d6ea0361e401bf75df819abeea5c735249280b74fb6dcd5c0fba81c","first_computed_at":"2026-05-18T00:36:03.611037Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:36:03.611037Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ggJ8CIRRgJMNh1jdHWJkBwq8dl+aXN18ayyl5p0GBqD4eF/FGm9ETVlwFUm3v0lEWl0d0YWS54uHwG2ovaCQBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:36:03.611749Z","signed_message":"canonical_sha256_bytes"},"source_id":"1701.04833","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16d15f033bb66938c1ae297a82dd1358aabc389c51ae7d60ac0a85fbc1dd1c9a","sha256:3f0f49182db57498afc848f2337ec25a1dee5d96d9aed40da63356aae108bd57"],"state_sha256":"1be9e3825c0b5f0c54393765212b2bfde191359ec66733e7eab65ba1dbdaae88"}