{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:VHQBYQWL2RU2KMRIX7XIQGD5PY","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":"50b568b216396ffd137b42a22bc9d30cedb50798c63c853afc13e9bc6ceb892c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CG","submitted_at":"2019-08-22T13:36:09Z","title_canon_sha256":"501e31c070e4205d64cebff482059c31b29b3782befc06c6363823e37bbea80d"},"schema_version":"1.0","source":{"id":"1908.08365","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.08365","created_at":"2026-07-04T23:59:12Z"},{"alias_kind":"arxiv_version","alias_value":"1908.08365v1","created_at":"2026-07-04T23:59:12Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.08365","created_at":"2026-07-04T23:59:12Z"},{"alias_kind":"pith_short_12","alias_value":"VHQBYQWL2RU2","created_at":"2026-07-04T23:59:12Z"},{"alias_kind":"pith_short_16","alias_value":"VHQBYQWL2RU2KMRI","created_at":"2026-07-04T23:59:12Z"},{"alias_kind":"pith_short_8","alias_value":"VHQBYQWL","created_at":"2026-07-04T23:59:12Z"}],"graph_snapshots":[{"event_id":"sha256:f67fa2acedeb2407b6226dc1ccfd1551c4a6021a8dacd1c87fe7d6cccc398875","target":"graph","created_at":"2026-07-04T23:59:12Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.08365/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Van Goethem and Verbeek recently showed how to morph between two planar orthogonal drawings $\\Gamma_I$ and $\\Gamma_O$ of a connected graph $G$ while preserving planarity, orthogonality, and the complexity of the drawing during the morph. Necessarily drawings $\\Gamma_I$ and $\\Gamma_O$ must be equivalent, that is, there exists a homeomorphism of the plane that transforms $\\Gamma_I$ into $\\Gamma_O$. Van Goethem and Verbeek use $O(n)$ linear morphs, where $n$ is the maximum complexity of the input drawings. However, if the graph is disconnected their method requires $O(n^{1.5})$ linear morphs. In ","authors_text":"Arthur van Goethem, Bettina Speckmann, Kevin Verbeek","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CG","submitted_at":"2019-08-22T13:36:09Z","title":"Optimal Morphs of Planar Orthogonal Drawings II"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.08365","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":"sha256:9537d0f22595ef9ecb2465e2d594bf22ec8fae6e641db9de8cbe4f7afd140aee","target":"record","created_at":"2026-07-04T23:59:12Z","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":"50b568b216396ffd137b42a22bc9d30cedb50798c63c853afc13e9bc6ceb892c","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CG","submitted_at":"2019-08-22T13:36:09Z","title_canon_sha256":"501e31c070e4205d64cebff482059c31b29b3782befc06c6363823e37bbea80d"},"schema_version":"1.0","source":{"id":"1908.08365","kind":"arxiv","version":1}},"canonical_sha256":"a9e01c42cbd469a53228bfee88187d7e2d3ceb328be52d870fd048f373652bc1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a9e01c42cbd469a53228bfee88187d7e2d3ceb328be52d870fd048f373652bc1","first_computed_at":"2026-07-04T23:59:12.123013Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:59:12.123013Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BlavPeLUc3tisX7kw0MNeqRmXtEiy8ky711GtAgF0N3azrTpsve8+asMwgckz0f09p8nUXwsHoDZaeDkwrgzDw==","signature_status":"signed_v1","signed_at":"2026-07-04T23:59:12.123484Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.08365","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9537d0f22595ef9ecb2465e2d594bf22ec8fae6e641db9de8cbe4f7afd140aee","sha256:f67fa2acedeb2407b6226dc1ccfd1551c4a6021a8dacd1c87fe7d6cccc398875"],"state_sha256":"f047eae1d14e149ccbcf8e2bc8e918024e2f48806555cb8138bd092adf1972fb"}