{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:MK73C6AJYQREV34K2IWAGF33WL","short_pith_number":"pith:MK73C6AJ","canonical_record":{"source":{"id":"1610.07452","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-24T15:10:09Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"5b31f65d16478e717b057ed987c2073175cc520224a035fbc792bf1f5583cbc4","abstract_canon_sha256":"be448b0bbd9c6d1d933b6c7c1bdff88e4fa9ebc932ef0c5f534c943502145999"},"schema_version":"1.0"},"canonical_sha256":"62bfb17809c4224aef8ad22c03177bb2ea9ab9976749aac36d8814dbe55e4d5d","source":{"kind":"arxiv","id":"1610.07452","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07452","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07452v1","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07452","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"pith_short_12","alias_value":"MK73C6AJYQRE","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"pith_short_16","alias_value":"MK73C6AJYQREV34K","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"pith_short_8","alias_value":"MK73C6AJ","created_at":"2026-07-05T00:09:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:MK73C6AJYQREV34K2IWAGF33WL","target":"record","payload":{"canonical_record":{"source":{"id":"1610.07452","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-24T15:10:09Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"5b31f65d16478e717b057ed987c2073175cc520224a035fbc792bf1f5583cbc4","abstract_canon_sha256":"be448b0bbd9c6d1d933b6c7c1bdff88e4fa9ebc932ef0c5f534c943502145999"},"schema_version":"1.0"},"canonical_sha256":"62bfb17809c4224aef8ad22c03177bb2ea9ab9976749aac36d8814dbe55e4d5d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:09:06.502789Z","signature_b64":"BPIbkpLrE69aCtEIZTGHpvATrIcGTlE6VIWkAFtYQJUU1NWmuLuLEAMZmWlrbpJiGHaca/O6qydhUqGOgC+GAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"62bfb17809c4224aef8ad22c03177bb2ea9ab9976749aac36d8814dbe55e4d5d","last_reissued_at":"2026-07-05T00:09:06.502307Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:09:06.502307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1610.07452","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":"2026-07-05T00:09:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"At+b2nHAAG+IwzmyY0s4IrE3Xc01KN5za4Squ+dHEctpk11LTlf/6NtX/YIVpHa1xn5xwWVT5/fiMEnjhQyBBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T19:15:38.023097Z"},"content_sha256":"08cf6638501eb550d05d8819473d1f19420c71b703abcd185516a030cf367378","schema_version":"1.0","event_id":"sha256:08cf6638501eb550d05d8819473d1f19420c71b703abcd185516a030cf367378"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:MK73C6AJYQREV34K2IWAGF33WL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Localized electromechanical interactions in ferroelectric P(VDF-TrFE) nanowires investigated by scanning probe microscopy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Qingshen Jing, Richard A. Whiter, Sohini Kar-Narayan, Vijay Narayan, Yonatan Calahorra","submitted_at":"2016-10-24T15:10:09Z","abstract_excerpt":"We investigate the electromechanical interactions in individual P(VDF-TrFE) nanowires in response to localized electrical poling via a conducting atomic force microscope tip. Spatially resolved measurements of piezoelectric coefficients and elastic moduli before and after poling reveal a striking dependence on the polarity of the poling field, notably absent in thin films of the same composition. These observations are attributed to the unclamped nature of the nanowires and the inherent asymmetry in their chemical and electrical interactions with the tip and underlying substrate. Our findings "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07452","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1610.07452/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T00:09:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8/SlelDK/+Y4uEx5QsWzWYUT/RZ5lWB3vT48wvh6m7Ydri/Y3Gz8SX9QXeTAe88ZU83iQh7bSRvbT900lk6/CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T19:15:38.024801Z"},"content_sha256":"142ab18a1ec7fc67d3bad6015e24010b65b028d35209f8eeaf74f8906fa9d895","schema_version":"1.0","event_id":"sha256:142ab18a1ec7fc67d3bad6015e24010b65b028d35209f8eeaf74f8906fa9d895"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MK73C6AJYQREV34K2IWAGF33WL/bundle.json","state_url":"https://pith.science/pith/MK73C6AJYQREV34K2IWAGF33WL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MK73C6AJYQREV34K2IWAGF33WL/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":"2026-08-18T19:15:38Z","links":{"resolver":"https://pith.science/pith/MK73C6AJYQREV34K2IWAGF33WL","bundle":"https://pith.science/pith/MK73C6AJYQREV34K2IWAGF33WL/bundle.json","state":"https://pith.science/pith/MK73C6AJYQREV34K2IWAGF33WL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MK73C6AJYQREV34K2IWAGF33WL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:MK73C6AJYQREV34K2IWAGF33WL","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":"be448b0bbd9c6d1d933b6c7c1bdff88e4fa9ebc932ef0c5f534c943502145999","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-24T15:10:09Z","title_canon_sha256":"5b31f65d16478e717b057ed987c2073175cc520224a035fbc792bf1f5583cbc4"},"schema_version":"1.0","source":{"id":"1610.07452","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1610.07452","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"arxiv_version","alias_value":"1610.07452v1","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1610.07452","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"pith_short_12","alias_value":"MK73C6AJYQRE","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"pith_short_16","alias_value":"MK73C6AJYQREV34K","created_at":"2026-07-05T00:09:06Z"},{"alias_kind":"pith_short_8","alias_value":"MK73C6AJ","created_at":"2026-07-05T00:09:06Z"}],"graph_snapshots":[{"event_id":"sha256:142ab18a1ec7fc67d3bad6015e24010b65b028d35209f8eeaf74f8906fa9d895","target":"graph","created_at":"2026-07-05T00:09:06Z","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/1610.07452/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate the electromechanical interactions in individual P(VDF-TrFE) nanowires in response to localized electrical poling via a conducting atomic force microscope tip. Spatially resolved measurements of piezoelectric coefficients and elastic moduli before and after poling reveal a striking dependence on the polarity of the poling field, notably absent in thin films of the same composition. These observations are attributed to the unclamped nature of the nanowires and the inherent asymmetry in their chemical and electrical interactions with the tip and underlying substrate. Our findings ","authors_text":"Qingshen Jing, Richard A. Whiter, Sohini Kar-Narayan, Vijay Narayan, Yonatan Calahorra","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-24T15:10:09Z","title":"Localized electromechanical interactions in ferroelectric P(VDF-TrFE) nanowires investigated by scanning probe microscopy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1610.07452","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":"sha256:08cf6638501eb550d05d8819473d1f19420c71b703abcd185516a030cf367378","target":"record","created_at":"2026-07-05T00:09:06Z","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":"be448b0bbd9c6d1d933b6c7c1bdff88e4fa9ebc932ef0c5f534c943502145999","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2016-10-24T15:10:09Z","title_canon_sha256":"5b31f65d16478e717b057ed987c2073175cc520224a035fbc792bf1f5583cbc4"},"schema_version":"1.0","source":{"id":"1610.07452","kind":"arxiv","version":1}},"canonical_sha256":"62bfb17809c4224aef8ad22c03177bb2ea9ab9976749aac36d8814dbe55e4d5d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"62bfb17809c4224aef8ad22c03177bb2ea9ab9976749aac36d8814dbe55e4d5d","first_computed_at":"2026-07-05T00:09:06.502307Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:09:06.502307Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BPIbkpLrE69aCtEIZTGHpvATrIcGTlE6VIWkAFtYQJUU1NWmuLuLEAMZmWlrbpJiGHaca/O6qydhUqGOgC+GAg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:09:06.502789Z","signed_message":"canonical_sha256_bytes"},"source_id":"1610.07452","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:08cf6638501eb550d05d8819473d1f19420c71b703abcd185516a030cf367378","sha256:142ab18a1ec7fc67d3bad6015e24010b65b028d35209f8eeaf74f8906fa9d895"],"state_sha256":"9c36efb350234ed935311d3d599c876a98944b892e6d6dc102dc2780b2f2b0ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U7bw3CtMd2noBfucTyCmM+tcq9Tql8/9qFO1ZC5ecK2nYwqXpP7VequDsMeLtb9v+rBkErSaE+rjBJAQM4yRDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T19:15:38.031723Z","bundle_sha256":"b7b103dbaf27debc758ae7d0810c487b4eb4a4d05c32209b582ed7831143ef40"}}