{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:HXOY2JENSI5ZHA2AQYWDO2NW4Q","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":"e42052ec727e3ef60bb5d42e490cf0840b1763c5dcd859ca60c4654b591c5536","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-02-07T16:03:23Z","title_canon_sha256":"1ae9c29b446f6b146613687064e1f9462d2fba5aa4de54c6cec5d16769a745e3"},"schema_version":"1.0","source":{"id":"2202.03318","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2202.03318","created_at":"2026-07-05T04:50:53Z"},{"alias_kind":"arxiv_version","alias_value":"2202.03318v1","created_at":"2026-07-05T04:50:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2202.03318","created_at":"2026-07-05T04:50:53Z"},{"alias_kind":"pith_short_12","alias_value":"HXOY2JENSI5Z","created_at":"2026-07-05T04:50:53Z"},{"alias_kind":"pith_short_16","alias_value":"HXOY2JENSI5ZHA2A","created_at":"2026-07-05T04:50:53Z"},{"alias_kind":"pith_short_8","alias_value":"HXOY2JEN","created_at":"2026-07-05T04:50:53Z"}],"graph_snapshots":[{"event_id":"sha256:03930ff75226b6857ee72c761d2dcc015115b002f3cedfc59fe6bca137a07a41","target":"graph","created_at":"2026-07-05T04:50:53Z","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/2202.03318/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Nonlinearities are inherent to the dynamics of two-dimensional materials. Phenomena like intermodal coupling already arise at amplitudes of only a few nanometers, and a range of unexplored effects still awaits to be harnessed. Here, we demonstrate a route for generating mechanical frequency combs in graphene resonators undergoing symmetry-breaking forces. We use electrostatic force to break the membrane's out-of-plane symmetry and tune its resonance frequency towards a two-to-one internal resonance, thus achieving strong coupling between two of its mechanical modes. When increasing the drive l","authors_text":"Ata Ke\\c{s}kekler, Farbod Alijani, Hadi Arjmandi, Peter G. Steeneken","cross_cats":["nlin.CD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-02-07T16:03:23Z","title":"Symmetry-breaking induced frequency combs in graphene resonators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.03318","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":"sha256:17a0d3a8975106ce6f49ae4887c861523671f712e39db429c53613fb9e9ed130","target":"record","created_at":"2026-07-05T04:50:53Z","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":"e42052ec727e3ef60bb5d42e490cf0840b1763c5dcd859ca60c4654b591c5536","cross_cats_sorted":["nlin.CD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2022-02-07T16:03:23Z","title_canon_sha256":"1ae9c29b446f6b146613687064e1f9462d2fba5aa4de54c6cec5d16769a745e3"},"schema_version":"1.0","source":{"id":"2202.03318","kind":"arxiv","version":1}},"canonical_sha256":"3ddd8d248d923b938340862c3769b6e43f2ad77ac534a3f27fddd85530fac867","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ddd8d248d923b938340862c3769b6e43f2ad77ac534a3f27fddd85530fac867","first_computed_at":"2026-07-05T04:50:53.112137Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:50:53.112137Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"FN+bKgtZFd0ktUem+4DtUdFXDFlJb4vmS/H9rneQ7qkOtEHhlx5WbZ7WWwxoPwuKLtHqeDvWvQmq8QzrqH6+DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:50:53.112562Z","signed_message":"canonical_sha256_bytes"},"source_id":"2202.03318","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:17a0d3a8975106ce6f49ae4887c861523671f712e39db429c53613fb9e9ed130","sha256:03930ff75226b6857ee72c761d2dcc015115b002f3cedfc59fe6bca137a07a41"],"state_sha256":"f8c6b4da0326ba85492b671bb6f5b9ccff228bb370c8bf6bec70377b33b4ae16"}