{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:UZSZ5THOQUS6N3PTZLVGNCGBFN","short_pith_number":"pith:UZSZ5THO","canonical_record":{"source":{"id":"1509.06202","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-21T12:31:44Z","cross_cats_sorted":[],"title_canon_sha256":"e64f55ee5d83e01f53673ea97c695643b83dca89d81139a36d38f15b1b4551ae","abstract_canon_sha256":"d436994ca8d574d11495f5cca792d0d33de508aba702e49c3b778b1b99701b2f"},"schema_version":"1.0"},"canonical_sha256":"a6659eccee8525e6edf3caea6688c12b69cc0b8442ac75cc15a8c98842a36850","source":{"kind":"arxiv","id":"1509.06202","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.06202","created_at":"2026-05-18T01:22:36Z"},{"alias_kind":"arxiv_version","alias_value":"1509.06202v1","created_at":"2026-05-18T01:22:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.06202","created_at":"2026-05-18T01:22:36Z"},{"alias_kind":"pith_short_12","alias_value":"UZSZ5THOQUS6","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UZSZ5THOQUS6N3PT","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UZSZ5THO","created_at":"2026-05-18T12:29:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:UZSZ5THOQUS6N3PTZLVGNCGBFN","target":"record","payload":{"canonical_record":{"source":{"id":"1509.06202","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-21T12:31:44Z","cross_cats_sorted":[],"title_canon_sha256":"e64f55ee5d83e01f53673ea97c695643b83dca89d81139a36d38f15b1b4551ae","abstract_canon_sha256":"d436994ca8d574d11495f5cca792d0d33de508aba702e49c3b778b1b99701b2f"},"schema_version":"1.0"},"canonical_sha256":"a6659eccee8525e6edf3caea6688c12b69cc0b8442ac75cc15a8c98842a36850","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:22:36.091941Z","signature_b64":"DY93uoqDO6Nl/PQN9ESY4iElwn34EfPMFymUYKjyZP89aSSzVjCrIyMn5GVOSutF/dCM4CcaFAs5YtRM+z2vDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a6659eccee8525e6edf3caea6688c12b69cc0b8442ac75cc15a8c98842a36850","last_reissued_at":"2026-05-18T01:22:36.091557Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:22:36.091557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1509.06202","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:22:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"V6xZjEiHg+5hUTwcA3RiFTPFXiHA6IldCRIuu8oJFhXoAUDSm4aXmRATfBP0QAu9sy83nM45dTUC3XFzanDfDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T00:40:36.356724Z"},"content_sha256":"4043d472553882f5ba7c2d5f24c9a4ba270e1ee0f63c714058a8507038a90166","schema_version":"1.0","event_id":"sha256:4043d472553882f5ba7c2d5f24c9a4ba270e1ee0f63c714058a8507038a90166"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:UZSZ5THOQUS6N3PTZLVGNCGBFN","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mechanical Strain Effects on Black Phosphorus Nanoresonators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chao Zhang, Cui-Xia Wang, Harold S. Park, Jin-Wu Jiang, T. Rabczuk","submitted_at":"2015-09-21T12:31:44Z","abstract_excerpt":"We perform classical molecular dynamics to investigate the effects of mechanical strain on single-layer black phosphorus nanoresonators at different temperatures. We find that the resonant frequency is highly anisotropic in black phosphorus due to its intrinsic puckered configuration, and that the quality factor in the armchair direction is higher than in the zigzag direction at room temperature. The quality factors are also found to be intrinsically larger than graphene and MoS2 nanoresonators. The quality factors can be increased by more than a factor of two by applying tensile strain, with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06202","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:22:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QUSBJ1QbkoVxg2ng/iNNMTW6hfXGHPjAntI7gJvQVanH5ELClcTZPZRRgAgYIuUks9vDy2DyAf54qEsRqf1fAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-22T00:40:36.357077Z"},"content_sha256":"a68ce902f598af4ae22b6bd33c2cff5e502d2b19828df2f943f02ec561874513","schema_version":"1.0","event_id":"sha256:a68ce902f598af4ae22b6bd33c2cff5e502d2b19828df2f943f02ec561874513"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UZSZ5THOQUS6N3PTZLVGNCGBFN/bundle.json","state_url":"https://pith.science/pith/UZSZ5THOQUS6N3PTZLVGNCGBFN/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UZSZ5THOQUS6N3PTZLVGNCGBFN/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-22T00:40:36Z","links":{"resolver":"https://pith.science/pith/UZSZ5THOQUS6N3PTZLVGNCGBFN","bundle":"https://pith.science/pith/UZSZ5THOQUS6N3PTZLVGNCGBFN/bundle.json","state":"https://pith.science/pith/UZSZ5THOQUS6N3PTZLVGNCGBFN/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UZSZ5THOQUS6N3PTZLVGNCGBFN/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:UZSZ5THOQUS6N3PTZLVGNCGBFN","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":"d436994ca8d574d11495f5cca792d0d33de508aba702e49c3b778b1b99701b2f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-21T12:31:44Z","title_canon_sha256":"e64f55ee5d83e01f53673ea97c695643b83dca89d81139a36d38f15b1b4551ae"},"schema_version":"1.0","source":{"id":"1509.06202","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1509.06202","created_at":"2026-05-18T01:22:36Z"},{"alias_kind":"arxiv_version","alias_value":"1509.06202v1","created_at":"2026-05-18T01:22:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1509.06202","created_at":"2026-05-18T01:22:36Z"},{"alias_kind":"pith_short_12","alias_value":"UZSZ5THOQUS6","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_16","alias_value":"UZSZ5THOQUS6N3PT","created_at":"2026-05-18T12:29:44Z"},{"alias_kind":"pith_short_8","alias_value":"UZSZ5THO","created_at":"2026-05-18T12:29:44Z"}],"graph_snapshots":[{"event_id":"sha256:a68ce902f598af4ae22b6bd33c2cff5e502d2b19828df2f943f02ec561874513","target":"graph","created_at":"2026-05-18T01:22:36Z","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 perform classical molecular dynamics to investigate the effects of mechanical strain on single-layer black phosphorus nanoresonators at different temperatures. We find that the resonant frequency is highly anisotropic in black phosphorus due to its intrinsic puckered configuration, and that the quality factor in the armchair direction is higher than in the zigzag direction at room temperature. The quality factors are also found to be intrinsically larger than graphene and MoS2 nanoresonators. The quality factors can be increased by more than a factor of two by applying tensile strain, with ","authors_text":"Chao Zhang, Cui-Xia Wang, Harold S. Park, Jin-Wu Jiang, T. Rabczuk","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-21T12:31:44Z","title":"Mechanical Strain Effects on Black Phosphorus Nanoresonators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06202","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":"sha256:4043d472553882f5ba7c2d5f24c9a4ba270e1ee0f63c714058a8507038a90166","target":"record","created_at":"2026-05-18T01:22:36Z","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":"d436994ca8d574d11495f5cca792d0d33de508aba702e49c3b778b1b99701b2f","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-09-21T12:31:44Z","title_canon_sha256":"e64f55ee5d83e01f53673ea97c695643b83dca89d81139a36d38f15b1b4551ae"},"schema_version":"1.0","source":{"id":"1509.06202","kind":"arxiv","version":1}},"canonical_sha256":"a6659eccee8525e6edf3caea6688c12b69cc0b8442ac75cc15a8c98842a36850","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a6659eccee8525e6edf3caea6688c12b69cc0b8442ac75cc15a8c98842a36850","first_computed_at":"2026-05-18T01:22:36.091557Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:36.091557Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DY93uoqDO6Nl/PQN9ESY4iElwn34EfPMFymUYKjyZP89aSSzVjCrIyMn5GVOSutF/dCM4CcaFAs5YtRM+z2vDA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:36.091941Z","signed_message":"canonical_sha256_bytes"},"source_id":"1509.06202","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:4043d472553882f5ba7c2d5f24c9a4ba270e1ee0f63c714058a8507038a90166","sha256:a68ce902f598af4ae22b6bd33c2cff5e502d2b19828df2f943f02ec561874513"],"state_sha256":"995abc85490c1c6f2a1dd224fc6aa030bcbd50039d7d08b5990e82c862d19f52"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6zFHMgdPnlYBdukFee0dausQulPCV2jY7qvFwPAr22nZC/hwRACTyAolZxgfknwoCcLsmDCQaS3m0rp637Q6Bg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-22T00:40:36.359062Z","bundle_sha256":"63e15340eb3845638df6e43704c991ef8c504d24f90e3d6653c4b107dfeee281"}}