{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:NN3LYFODKGTYJV43W6P5LW3C6Y","short_pith_number":"pith:NN3LYFOD","canonical_record":{"source":{"id":"1507.01573","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-07-06T19:34:04Z","cross_cats_sorted":[],"title_canon_sha256":"0251023b13dd6fbf90ee0d0e4e0783c191c6ded30228d24ad6de293e4dc5968b","abstract_canon_sha256":"64974ad55e964cc52d4b469c7d582beb96eb9521bf4eccf67115ad58adb26c88"},"schema_version":"1.0"},"canonical_sha256":"6b76bc15c351a784d79bb79fd5db62f63579427085bbe9609a72daddb30c35b4","source":{"kind":"arxiv","id":"1507.01573","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.01573","created_at":"2026-05-18T00:20:32Z"},{"alias_kind":"arxiv_version","alias_value":"1507.01573v1","created_at":"2026-05-18T00:20:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01573","created_at":"2026-05-18T00:20:32Z"},{"alias_kind":"pith_short_12","alias_value":"NN3LYFODKGTY","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"NN3LYFODKGTYJV43","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"NN3LYFOD","created_at":"2026-05-18T12:29:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:NN3LYFODKGTYJV43W6P5LW3C6Y","target":"record","payload":{"canonical_record":{"source":{"id":"1507.01573","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-07-06T19:34:04Z","cross_cats_sorted":[],"title_canon_sha256":"0251023b13dd6fbf90ee0d0e4e0783c191c6ded30228d24ad6de293e4dc5968b","abstract_canon_sha256":"64974ad55e964cc52d4b469c7d582beb96eb9521bf4eccf67115ad58adb26c88"},"schema_version":"1.0"},"canonical_sha256":"6b76bc15c351a784d79bb79fd5db62f63579427085bbe9609a72daddb30c35b4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:20:32.622419Z","signature_b64":"qJReP6cTToqPTiH2j9wk2Sl+MHUg4G+rM5BtDdemCnoF7z2ByEppfAjt/1Re7fGyGy6jWWW3Z2dVqZbLkMRTBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6b76bc15c351a784d79bb79fd5db62f63579427085bbe9609a72daddb30c35b4","last_reissued_at":"2026-05-18T00:20:32.621551Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:20:32.621551Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.01573","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":"2026-05-18T00:20:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5p9XmHHMMnJ5EIXhZUlqy1nEaVDrdgGv0VOmszVRP4LZsNxc5Dl4jvuX74mGsVxCRmTHzUSbOJ6Ei38MyfkGAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:34:08.093959Z"},"content_sha256":"c8737050a1c00a283f1f197d7ff0c97578911f701558868a82843db3215c0fd9","schema_version":"1.0","event_id":"sha256:c8737050a1c00a283f1f197d7ff0c97578911f701558868a82843db3215c0fd9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:NN3LYFODKGTYJV43W6P5LW3C6Y","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Mechanical Control of Graphene on Engineered Pyramidal Strain Arrays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"John H. Hinnefeld, Nadya Mason, Shuze Zhu, Stephen T. Gill, Teng Li, William T. Swanson","submitted_at":"2015-07-06T19:34:04Z","abstract_excerpt":"Strain can tune desirable electronic behavior in graphene, but there has been limited progress in controlling strain in graphene devices. In this paper, we study the mechanical response of graphene on substrates patterned with arrays of mesoscale pyramids. Using atomic force microscopy, we demonstrate that the morphology of graphene can be controlled from conformal to suspended depending on the arrangement of pyramids and the aspect ratio of the array. Non-uniform strains in graphene suspended across pyramids are revealed by Raman spectroscopy and supported by atomistic modeling, which also in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01573","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":"2026-05-18T00:20:32Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xKxxvx04sL1OIgRddk1/aYRJnXSf3Dq1kgcaXrfJYnUXJVCWw1mdZizPVdWQtpsXgUctbpz/2ia2AwAd9M5HDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T12:34:08.094296Z"},"content_sha256":"bf8d6789cfbd74690b459450a269630a0a709ad155b0d6150dc75d61577b210c","schema_version":"1.0","event_id":"sha256:bf8d6789cfbd74690b459450a269630a0a709ad155b0d6150dc75d61577b210c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NN3LYFODKGTYJV43W6P5LW3C6Y/bundle.json","state_url":"https://pith.science/pith/NN3LYFODKGTYJV43W6P5LW3C6Y/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NN3LYFODKGTYJV43W6P5LW3C6Y/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":"2026-06-05T12:34:08Z","links":{"resolver":"https://pith.science/pith/NN3LYFODKGTYJV43W6P5LW3C6Y","bundle":"https://pith.science/pith/NN3LYFODKGTYJV43W6P5LW3C6Y/bundle.json","state":"https://pith.science/pith/NN3LYFODKGTYJV43W6P5LW3C6Y/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NN3LYFODKGTYJV43W6P5LW3C6Y/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:NN3LYFODKGTYJV43W6P5LW3C6Y","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":"64974ad55e964cc52d4b469c7d582beb96eb9521bf4eccf67115ad58adb26c88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-07-06T19:34:04Z","title_canon_sha256":"0251023b13dd6fbf90ee0d0e4e0783c191c6ded30228d24ad6de293e4dc5968b"},"schema_version":"1.0","source":{"id":"1507.01573","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.01573","created_at":"2026-05-18T00:20:32Z"},{"alias_kind":"arxiv_version","alias_value":"1507.01573v1","created_at":"2026-05-18T00:20:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.01573","created_at":"2026-05-18T00:20:32Z"},{"alias_kind":"pith_short_12","alias_value":"NN3LYFODKGTY","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_16","alias_value":"NN3LYFODKGTYJV43","created_at":"2026-05-18T12:29:32Z"},{"alias_kind":"pith_short_8","alias_value":"NN3LYFOD","created_at":"2026-05-18T12:29:32Z"}],"graph_snapshots":[{"event_id":"sha256:bf8d6789cfbd74690b459450a269630a0a709ad155b0d6150dc75d61577b210c","target":"graph","created_at":"2026-05-18T00:20:32Z","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":"Strain can tune desirable electronic behavior in graphene, but there has been limited progress in controlling strain in graphene devices. In this paper, we study the mechanical response of graphene on substrates patterned with arrays of mesoscale pyramids. Using atomic force microscopy, we demonstrate that the morphology of graphene can be controlled from conformal to suspended depending on the arrangement of pyramids and the aspect ratio of the array. Non-uniform strains in graphene suspended across pyramids are revealed by Raman spectroscopy and supported by atomistic modeling, which also in","authors_text":"John H. Hinnefeld, Nadya Mason, Shuze Zhu, Stephen T. Gill, Teng Li, William T. Swanson","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-07-06T19:34:04Z","title":"Mechanical Control of Graphene on Engineered Pyramidal Strain Arrays"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.01573","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:c8737050a1c00a283f1f197d7ff0c97578911f701558868a82843db3215c0fd9","target":"record","created_at":"2026-05-18T00:20:32Z","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":"64974ad55e964cc52d4b469c7d582beb96eb9521bf4eccf67115ad58adb26c88","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2015-07-06T19:34:04Z","title_canon_sha256":"0251023b13dd6fbf90ee0d0e4e0783c191c6ded30228d24ad6de293e4dc5968b"},"schema_version":"1.0","source":{"id":"1507.01573","kind":"arxiv","version":1}},"canonical_sha256":"6b76bc15c351a784d79bb79fd5db62f63579427085bbe9609a72daddb30c35b4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6b76bc15c351a784d79bb79fd5db62f63579427085bbe9609a72daddb30c35b4","first_computed_at":"2026-05-18T00:20:32.621551Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:32.621551Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"qJReP6cTToqPTiH2j9wk2Sl+MHUg4G+rM5BtDdemCnoF7z2ByEppfAjt/1Re7fGyGy6jWWW3Z2dVqZbLkMRTBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:32.622419Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.01573","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c8737050a1c00a283f1f197d7ff0c97578911f701558868a82843db3215c0fd9","sha256:bf8d6789cfbd74690b459450a269630a0a709ad155b0d6150dc75d61577b210c"],"state_sha256":"fb39be25f91ff12de9a01069f83998add8342e1b0183b7a4e39bc7f2400e1f2e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DTCQs7aG9ncuPWBxB4tpSnw/eixZw0N4tTBIlmvlanh9yThdRBkdpAyK1zehgfxmG5dxiTkUcLn0Jey++GxbCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T12:34:08.096198Z","bundle_sha256":"1dd780ec76e375bcf3b95149a968e321a3c8ca34fd5ff08d6c49825f75cf19ef"}}