{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:H6GZTXM3YVQ3UBIBLZB457T7DL","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":"e91f75331c585dea85bd4538d34b3e55f12570849af1a2a2c02ffe0e9d51ca5a","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-10T21:00:00Z","title_canon_sha256":"14278923bde11ea46f13749e0129151e46b469ec5e76af6b0d4156c0ddf8bd79"},"schema_version":"1.0","source":{"id":"1412.3451","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1412.3451","created_at":"2026-05-18T01:41:19Z"},{"alias_kind":"arxiv_version","alias_value":"1412.3451v1","created_at":"2026-05-18T01:41:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1412.3451","created_at":"2026-05-18T01:41:19Z"},{"alias_kind":"pith_short_12","alias_value":"H6GZTXM3YVQ3","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"H6GZTXM3YVQ3UBIB","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"H6GZTXM3","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:88b1e3a5b6bc7d2dc85dd94852720ab9cc9d2727959a8ed07be423b69ac8f8d3","target":"graph","created_at":"2026-05-18T01:41:19Z","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":"I describe the design, implementation, and usage of galpy, a Python package for galactic-dynamics calculations. At its core, galpy consists of a general framework for representing galactic potentials both in Python and in C (for accelerated computations); galpy functions, objects, and methods can generally take arbitrary combinations of these as arguments. Numerical orbit integration is supported with a variety of Runge-Kutta-type and symplectic integrators. For planar orbits, integration of the phase-space volume is also possible. galpy supports the calculation of action-angle coordinates and","authors_text":"Jo Bovy (IAS)","cross_cats":["astro-ph.IM"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-10T21:00:00Z","title":"galpy: A Python Library for Galactic Dynamics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1412.3451","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:fb831f28aff63c6c795e5f914887bcb7e1d28df3c3e1b99a51cb1ed8d57c40ad","target":"record","created_at":"2026-05-18T01:41:19Z","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":"e91f75331c585dea85bd4538d34b3e55f12570849af1a2a2c02ffe0e9d51ca5a","cross_cats_sorted":["astro-ph.IM"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2014-12-10T21:00:00Z","title_canon_sha256":"14278923bde11ea46f13749e0129151e46b469ec5e76af6b0d4156c0ddf8bd79"},"schema_version":"1.0","source":{"id":"1412.3451","kind":"arxiv","version":1}},"canonical_sha256":"3f8d99dd9bc561ba05015e43cefe7f1aedafc157b1bdf71750f1c8f5157be325","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3f8d99dd9bc561ba05015e43cefe7f1aedafc157b1bdf71750f1c8f5157be325","first_computed_at":"2026-05-18T01:41:19.970741Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:19.970741Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RTDYuX6CA4Tz1U1ad22Py6JOpblCTgrerulW6OJfPVo0tCgrBO9prsDFZhcFp5+cn3z/lO9qMDe+XIuHNIPMBg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:19.971340Z","signed_message":"canonical_sha256_bytes"},"source_id":"1412.3451","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:fb831f28aff63c6c795e5f914887bcb7e1d28df3c3e1b99a51cb1ed8d57c40ad","sha256:88b1e3a5b6bc7d2dc85dd94852720ab9cc9d2727959a8ed07be423b69ac8f8d3"],"state_sha256":"bcda27cd57f78b773cbe80e37974b93a420924fb0efb5becbfcb9eb05a89237a"}