{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:CET6RGOCQENXPMJ5AVLPQLOWF2","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":"1c0fc4b68eb555004e3ddf6803582a213804723b368ea0141eab9ca9868b04e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-03-21T18:00:09Z","title_canon_sha256":"65350a1fa8b9c8d636dff24ef346bfd6171683ea45d8669e2d6c6a869f243129"},"schema_version":"1.0","source":{"id":"1703.07363","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1703.07363","created_at":"2026-05-18T00:34:41Z"},{"alias_kind":"arxiv_version","alias_value":"1703.07363v2","created_at":"2026-05-18T00:34:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1703.07363","created_at":"2026-05-18T00:34:41Z"},{"alias_kind":"pith_short_12","alias_value":"CET6RGOCQENX","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_16","alias_value":"CET6RGOCQENXPMJ5","created_at":"2026-05-18T12:31:10Z"},{"alias_kind":"pith_short_8","alias_value":"CET6RGOC","created_at":"2026-05-18T12:31:10Z"}],"graph_snapshots":[{"event_id":"sha256:60fa26592002b7cd42a007744e65597a1af8858799779b0f7711cf8e8996017c","target":"graph","created_at":"2026-05-18T00:34:41Z","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":"The collapse of a collisionless self-gravitating system, with the fast achievement of a quasi-stationary state, is driven by violent relaxation, with a typical particle interacting with the time-changing collective potential. It is traditionally assumed that this evolution is governed by the Vlasov-Poisson equation, in which case entropy must be conserved. We run N-body simulations of isolated self-gravitating systems, using three simulation codes: NBODY-6 (direct summation without softening), NBODY-2 (direct summation with softening) and GADGET-2 (tree code with softening), for different numb","authors_text":"Eder Perico, Laerte Sodr\\'e, Leandro Beraldo e Silva, Marcos Lima, Walter de Siqueira Pedra","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-03-21T18:00:09Z","title":"The Arrow of Time in the collapse of collisionless self-gravitating systems: non-validity of the Vlasov-Poisson equation during violent relaxation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1703.07363","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:abfa57cc2476f00af22176f47469f944deccaa334d4f5a4b54c1ee696c1830d7","target":"record","created_at":"2026-05-18T00:34:41Z","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":"1c0fc4b68eb555004e3ddf6803582a213804723b368ea0141eab9ca9868b04e3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-03-21T18:00:09Z","title_canon_sha256":"65350a1fa8b9c8d636dff24ef346bfd6171683ea45d8669e2d6c6a869f243129"},"schema_version":"1.0","source":{"id":"1703.07363","kind":"arxiv","version":2}},"canonical_sha256":"1127e899c2811b77b13d0556f82dd62eaa3fded48e57e523236504bba479eeeb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1127e899c2811b77b13d0556f82dd62eaa3fded48e57e523236504bba479eeeb","first_computed_at":"2026-05-18T00:34:41.792967Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:34:41.792967Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"n3vs2cm5J4/EuyMEB95jZj/cebJovZJsq1ZO75+VUeH8ww6HdUhZy/bsBHDLtUwGbbbmeaCa7gIz226IXC00BA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:34:41.793534Z","signed_message":"canonical_sha256_bytes"},"source_id":"1703.07363","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:abfa57cc2476f00af22176f47469f944deccaa334d4f5a4b54c1ee696c1830d7","sha256:60fa26592002b7cd42a007744e65597a1af8858799779b0f7711cf8e8996017c"],"state_sha256":"513a88ee345da5bd1ab4ff840c6b998f02bf3872ec94e6295af088f33de260ec"}