{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:SBLLG6AVCFE64ZQ444WZNRDK7H","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":"3ea650acea8f47ba882119644309a61f2edf42f5ce75e016e21774eadec57a1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-12-03T09:31:29Z","title_canon_sha256":"3468cc3eefb4cc0d0ba00dc338634330be818a18cf143f97f41e715813855d0d"},"schema_version":"1.0","source":{"id":"1312.0746","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1312.0746","created_at":"2026-05-18T01:37:02Z"},{"alias_kind":"arxiv_version","alias_value":"1312.0746v3","created_at":"2026-05-18T01:37:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1312.0746","created_at":"2026-05-18T01:37:02Z"},{"alias_kind":"pith_short_12","alias_value":"SBLLG6AVCFE6","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_16","alias_value":"SBLLG6AVCFE64ZQ4","created_at":"2026-05-18T12:27:59Z"},{"alias_kind":"pith_short_8","alias_value":"SBLLG6AV","created_at":"2026-05-18T12:27:59Z"}],"graph_snapshots":[{"event_id":"sha256:8490ceace9f0d3d6fafa3b3a17a9774af97d423ec8a1d936932ff942a6a3eb47","target":"graph","created_at":"2026-05-18T01:37:02Z","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 study the vibrational properties of graphene under combined shear and uniaxial tensile strain using density-functional perturbation theory. Shear strain always causes rippling instabilities with strain-dependent direction and wavelength; armchair strain contrasts this instability, enabling graphene stability in a large range of combined strains. A complementary description based on membrane elasticity theory nicely clarifies the competition of shear-induced instability and uniaxial tension. We also report the large strain-induced shifts of the split components of the G optical phonon line, ","authors_text":"Giulio Cocco, Vincenzo Fiorentini","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-12-03T09:31:29Z","title":"Vibrational stability of graphene under combined shear and axial strains"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1312.0746","kind":"arxiv","version":3},"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:cbe958216145ba66c4121900a766866463b3264cea6d30d30b38381cf370c02e","target":"record","created_at":"2026-05-18T01:37:02Z","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":"3ea650acea8f47ba882119644309a61f2edf42f5ce75e016e21774eadec57a1b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2013-12-03T09:31:29Z","title_canon_sha256":"3468cc3eefb4cc0d0ba00dc338634330be818a18cf143f97f41e715813855d0d"},"schema_version":"1.0","source":{"id":"1312.0746","kind":"arxiv","version":3}},"canonical_sha256":"9056b378151149ee661ce72d96c46af9c5ea82b1dda7071dc2ab917cf438f065","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9056b378151149ee661ce72d96c46af9c5ea82b1dda7071dc2ab917cf438f065","first_computed_at":"2026-05-18T01:37:02.446161Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:37:02.446161Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pSDpXUOdHOjqweqb9JIG+Yd7yqSrjac0bkKuuP9DKqAz4NyKTWscgdRH2eHKWNPqyNkXMl0w0/HEn7HaxIS2Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T01:37:02.446618Z","signed_message":"canonical_sha256_bytes"},"source_id":"1312.0746","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbe958216145ba66c4121900a766866463b3264cea6d30d30b38381cf370c02e","sha256:8490ceace9f0d3d6fafa3b3a17a9774af97d423ec8a1d936932ff942a6a3eb47"],"state_sha256":"28e27c6af9c29141f31d03c2abc6099a5ed43b5e2c58b1b06c1fbdd290cb91ec"}