{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:YG3GMRHFRB46AK6EW4QVO3424R","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"3911aa7f426308f366b43adf80bd2039d33f191a4088a45da549d40ae7a9a1cc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-07-18T20:57:11Z","title_canon_sha256":"e07a592ba19f136271033e3ce440273fd82071589cba6950a48af5af88a6f4f6"},"schema_version":"1.0","source":{"id":"2607.16965","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2607.16965","created_at":"2026-07-21T01:21:08Z"},{"alias_kind":"arxiv_version","alias_value":"2607.16965v1","created_at":"2026-07-21T01:21:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2607.16965","created_at":"2026-07-21T01:21:08Z"},{"alias_kind":"pith_short_12","alias_value":"YG3GMRHFRB46","created_at":"2026-07-21T01:21:08Z"},{"alias_kind":"pith_short_16","alias_value":"YG3GMRHFRB46AK6E","created_at":"2026-07-21T01:21:08Z"},{"alias_kind":"pith_short_8","alias_value":"YG3GMRHF","created_at":"2026-07-21T01:21:08Z"}],"graph_snapshots":[{"event_id":"sha256:f1bf7110447cd72a6a79b5d84eacd217b94692fd3a8b39a5f2b4f372ce0b84e8","target":"graph","created_at":"2026-07-21T01:21:08Z","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/2607.16965/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A single missing atom can drive a topological phase transition in a lattice that is otherwise trivial for all values of its parameters. We demonstrate this in a two-dimensional honeycomb lattice with anisotropic nearest-neighbor hopping ratio $t'/t$. The pristine lattice is topologically trivial for all $t'/t$ by the Nielsen-Ninomiya fermion-doubling theorem: Dirac valleys appear in pairs whose topological charges cancel identically in any bulk invariant. A single vacancy breaks this cancelation, acting as an internal boundary with defect winding number $\\nu_3=\\mp 1$ for $t'/t<2$. At $t'/t=2$,","authors_text":"Amit Goft, Anna Hassine, Boris Rotstein, Eric Akkermans","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-07-18T20:57:11Z","title":"Vacancy-Induced Topological Phase Transition via Valley Annihilation in an Anisotropic Honeycomb Lattice"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2607.16965","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":"sha256:495c4b7b777ad7c08cf18e88ce4c75658ac04818b3136a9eb288f014ae99a118","target":"record","created_at":"2026-07-21T01:21:08Z","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":"3911aa7f426308f366b43adf80bd2039d33f191a4088a45da549d40ae7a9a1cc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2026-07-18T20:57:11Z","title_canon_sha256":"e07a592ba19f136271033e3ce440273fd82071589cba6950a48af5af88a6f4f6"},"schema_version":"1.0","source":{"id":"2607.16965","kind":"arxiv","version":1}},"canonical_sha256":"c1b66644e58879e02bc4b721576f9ae46ae6d75e6f18439ef6b97d6307786838","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c1b66644e58879e02bc4b721576f9ae46ae6d75e6f18439ef6b97d6307786838","first_computed_at":"2026-07-21T01:21:08.486005Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-21T01:21:08.486005Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Qu0YR/Hj9jauVpbUTkk05dmQw2wVae6YLOt1BHK8CzdhNMxKEgo4/mpxViagbQZszNa2fQ7IkQHOkLr2avxQDQ==","signature_status":"signed_v1","signed_at":"2026-07-21T01:21:08.486842Z","signed_message":"canonical_sha256_bytes"},"source_id":"2607.16965","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:495c4b7b777ad7c08cf18e88ce4c75658ac04818b3136a9eb288f014ae99a118","sha256:f1bf7110447cd72a6a79b5d84eacd217b94692fd3a8b39a5f2b4f372ce0b84e8","sha256:63a62464250da36ba9467e8890fcc9cd51400da2bd77fa0f22a1a7c13c78cf1f"],"state_sha256":"fbe830bf707822326efee7ca0e346e7eb8543b83c6a4026c01d5767d270b15c5"}