{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:VBS7NX2VIF36UE6QDOVQYBNA75","short_pith_number":"pith:VBS7NX2V","schema_version":"1.0","canonical_sha256":"a865f6df554177ea13d01bab0c05a0ff4ebf2e32d706deeff73bf219a5093259","source":{"kind":"arxiv","id":"1903.07595","version":1},"attestation_state":"computed","paper":{"title":"Morphing Contact Representations of Graphs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DS"],"primary_cat":"cs.CG","authors_text":"Giordano Da Lozzo, Patrizio Angelini, Sabine Cornelsen, Steven Chaplick, Vincenzo Roselli","submitted_at":"2019-03-18T17:42:52Z","abstract_excerpt":"We consider the problem of morphing between contact representations of a plane graph. In an $\\mathcal F$-contact representation of a plane graph $G$, vertices are realized by internally disjoint elements from a family $\\mathcal F$ of connected geometric objects. Two such elements touch if and only if their corresponding vertices are adjacent. These touchings also induce the same embedding as in $G$. In a morph between two $\\mathcal F$-contact representations we insist that at each time step (continuously throughout the morph) we have an $\\mathcal F$-contact representation.\n  We focus on the ca"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1903.07595","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CG","submitted_at":"2019-03-18T17:42:52Z","cross_cats_sorted":["cs.DS"],"title_canon_sha256":"b91c13186616e82811473ef0e3ba3b2ee7c39f13b6653345fa54e7f1ba9880ba","abstract_canon_sha256":"0fb61a30234920d81f59fc06e3e7e0833d51c365e8915354c8456c39fd921858"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:51:00.921128Z","signature_b64":"puJfEh6sfG8Mez8sawVscs8Z8kPr2pYk0kyheVTLSK21ilvSIBTgPew3BRVyEJJRcNzsd/tu2MaOkOg1FKHbAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a865f6df554177ea13d01bab0c05a0ff4ebf2e32d706deeff73bf219a5093259","last_reissued_at":"2026-05-17T23:51:00.920461Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:51:00.920461Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Morphing Contact Representations of Graphs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.DS"],"primary_cat":"cs.CG","authors_text":"Giordano Da Lozzo, Patrizio Angelini, Sabine Cornelsen, Steven Chaplick, Vincenzo Roselli","submitted_at":"2019-03-18T17:42:52Z","abstract_excerpt":"We consider the problem of morphing between contact representations of a plane graph. In an $\\mathcal F$-contact representation of a plane graph $G$, vertices are realized by internally disjoint elements from a family $\\mathcal F$ of connected geometric objects. Two such elements touch if and only if their corresponding vertices are adjacent. These touchings also induce the same embedding as in $G$. In a morph between two $\\mathcal F$-contact representations we insist that at each time step (continuously throughout the morph) we have an $\\mathcal F$-contact representation.\n  We focus on the ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.07595","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1903.07595","created_at":"2026-05-17T23:51:00.920579+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.07595v1","created_at":"2026-05-17T23:51:00.920579+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.07595","created_at":"2026-05-17T23:51:00.920579+00:00"},{"alias_kind":"pith_short_12","alias_value":"VBS7NX2VIF36","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_16","alias_value":"VBS7NX2VIF36UE6Q","created_at":"2026-05-18T12:33:30.264802+00:00"},{"alias_kind":"pith_short_8","alias_value":"VBS7NX2V","created_at":"2026-05-18T12:33:30.264802+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75","json":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75.json","graph_json":"https://pith.science/api/pith-number/VBS7NX2VIF36UE6QDOVQYBNA75/graph.json","events_json":"https://pith.science/api/pith-number/VBS7NX2VIF36UE6QDOVQYBNA75/events.json","paper":"https://pith.science/paper/VBS7NX2V"},"agent_actions":{"view_html":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75","download_json":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75.json","view_paper":"https://pith.science/paper/VBS7NX2V","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.07595&json=true","fetch_graph":"https://pith.science/api/pith-number/VBS7NX2VIF36UE6QDOVQYBNA75/graph.json","fetch_events":"https://pith.science/api/pith-number/VBS7NX2VIF36UE6QDOVQYBNA75/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75/action/timestamp_anchor","attest_storage":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75/action/storage_attestation","attest_author":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75/action/author_attestation","sign_citation":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75/action/citation_signature","submit_replication":"https://pith.science/pith/VBS7NX2VIF36UE6QDOVQYBNA75/action/replication_record"}},"created_at":"2026-05-17T23:51:00.920579+00:00","updated_at":"2026-05-17T23:51:00.920579+00:00"}