{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:BUZKJS33D5SIIIMCGASHRODH42","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":"8a0dbdad51893c370ceb7ceb0c4f680bf6fcd3b64ab1a7492e452c1e7e00cf88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-07T15:35:25Z","title_canon_sha256":"fdf0a109bf517bedb3cc091eff728457a4edf902320d0646db4cf9fef24cf6e0"},"schema_version":"1.0","source":{"id":"1610.02326","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.02326","created_at":"2026-05-18T00:59:18Z"},{"alias_kind":"arxiv_version","alias_value":"1610.02326v1","created_at":"2026-05-18T00:59:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.02326","created_at":"2026-05-18T00:59:18Z"},{"alias_kind":"pith_short_12","alias_value":"BUZKJS33D5SI","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_16","alias_value":"BUZKJS33D5SIIIMC","created_at":"2026-05-18T12:30:09Z"},{"alias_kind":"pith_short_8","alias_value":"BUZKJS33","created_at":"2026-05-18T12:30:09Z"}],"graph_snapshots":[{"event_id":"sha256:059a56bb1ca5adf257c11d9f17b95e95ee17685941bf0784526a92b5c3fc52a5","target":"graph","created_at":"2026-05-18T00:59:18Z","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":"For several decades it has been known that stellar bars in disc galaxies can be triggered by interactions, or by internal processes such as dynamical instabilities. In this work, we explore the differences between these two mechanisms using numerical simulations. We perform two groups of simulations based on isolated galaxies, one group in which a bar develops naturally, and another group in which the bar could not develop in isolation. The rest of the simulations recreate 1:1 coplanar fly-by interactions computed with the impulse approximation. The orbits we use for the interactions represent","authors_text":"2), 2) ((1) Instituto de Astrof\\'isica de Canarias (2) Universidad de La Laguna (3) Instituto de Ciencias del Patrimonio), A. C\\'esar Gonz\\'alez-Garc\\'ia (3), Claudio Dalla Vecchia (1, Inma Martinez-Valpuesta (1, J. Alfonso L. Aguerri (1, Martin Stringer (1","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-07T15:35:25Z","title":"A numerical study of interactions and stellar bars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.02326","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:b197ee19363dbafe8b0cc4d8a57a19dcf620246de492077500db88fe004dfe91","target":"record","created_at":"2026-05-18T00:59:18Z","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":"8a0dbdad51893c370ceb7ceb0c4f680bf6fcd3b64ab1a7492e452c1e7e00cf88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2016-10-07T15:35:25Z","title_canon_sha256":"fdf0a109bf517bedb3cc091eff728457a4edf902320d0646db4cf9fef24cf6e0"},"schema_version":"1.0","source":{"id":"1610.02326","kind":"arxiv","version":1}},"canonical_sha256":"0d32a4cb7b1f64842182302478b867e69537e8493ca7bd8dfc8041a4b80e094c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d32a4cb7b1f64842182302478b867e69537e8493ca7bd8dfc8041a4b80e094c","first_computed_at":"2026-05-18T00:59:18.730486Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:59:18.730486Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"uwL0bqharL2Jft0nuNPTWOQKVl35I2H//LRFdrq3SshIAV9NnHxcF7ji9+XV2JE99TQ6jd0Iuwc8Qe/T8DdLBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:59:18.731138Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.02326","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b197ee19363dbafe8b0cc4d8a57a19dcf620246de492077500db88fe004dfe91","sha256:059a56bb1ca5adf257c11d9f17b95e95ee17685941bf0784526a92b5c3fc52a5"],"state_sha256":"fa5261882138520e99e55bc04aa4ed78855af1ccb532d7d21ff82856c87dace6"}