{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:QTDFZRL5OJLL4DFQM4YMZQHNXD","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":"41293af06f139c519041db22abae586c9fe250e29aefd9b38f4e232e400af43f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-02T21:00:13Z","title_canon_sha256":"5e0ec5e691f4dea57fb5e24ee311037a301f4596847fc288724400ad867ab0a5"},"schema_version":"1.0","source":{"id":"1502.00634","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.00634","created_at":"2026-05-18T01:41:05Z"},{"alias_kind":"arxiv_version","alias_value":"1502.00634v1","created_at":"2026-05-18T01:41:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.00634","created_at":"2026-05-18T01:41:05Z"},{"alias_kind":"pith_short_12","alias_value":"QTDFZRL5OJLL","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_16","alias_value":"QTDFZRL5OJLL4DFQ","created_at":"2026-05-18T12:29:37Z"},{"alias_kind":"pith_short_8","alias_value":"QTDFZRL5","created_at":"2026-05-18T12:29:37Z"}],"graph_snapshots":[{"event_id":"sha256:67d32cc8e2848e1e6d7581197be3125995f5a4411e9390c7647bf52667d852f7","target":"graph","created_at":"2026-05-18T01:41:05Z","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 the formation of a Kinematically Decoupled Core (KDC) in an elliptical galaxy, resulting from a major merger simulation of two disk galaxies. We show that although the two progenitor galaxies are initially following a prograde orbit, strong reactive forces during the merger can cause a short-lived change of their orbital spin; the two progenitors follow a retrograde orbit right before their final coalescence. This results in a central kinematic decoupling and the formation of a large-scale (~2 kpc radius) counter-rotating core (CRC) at the center of the final elliptical-like merger ","authors_text":"Andrea V. Macci\\`o, Athanasia Tsatsi, Benjamin P. Moster, Glenn van de Ven","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-02T21:00:13Z","title":"A New Channel for the Formation of Kinematically Decoupled Cores in Early-type galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.00634","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":"sha256:8894ddea6c76907d45ddb1effb805dce72807863c9def0ac98fbce6bb777585d","target":"record","created_at":"2026-05-18T01:41:05Z","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":"41293af06f139c519041db22abae586c9fe250e29aefd9b38f4e232e400af43f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-02-02T21:00:13Z","title_canon_sha256":"5e0ec5e691f4dea57fb5e24ee311037a301f4596847fc288724400ad867ab0a5"},"schema_version":"1.0","source":{"id":"1502.00634","kind":"arxiv","version":1}},"canonical_sha256":"84c65cc57d7256be0cb06730ccc0edb8f32997bae2614d76b4533fd2df394a8f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"84c65cc57d7256be0cb06730ccc0edb8f32997bae2614d76b4533fd2df394a8f","first_computed_at":"2026-05-18T01:41:05.265180Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:41:05.265180Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FZhfFUJCmPJjr/bbTNOGnuaXHolALj3p7edZJ/qv3izAyo19CqHtDCQGnf5KpFbDU9DrzeM1dsT6ty//breYAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:41:05.265928Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.00634","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8894ddea6c76907d45ddb1effb805dce72807863c9def0ac98fbce6bb777585d","sha256:67d32cc8e2848e1e6d7581197be3125995f5a4411e9390c7647bf52667d852f7"],"state_sha256":"070b17c647d0a6a270d528e0604c29969b162b280537f81617049562c9bf559d"}