{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:BITGBVT7CT4E2HM4U426AYD3B3","short_pith_number":"pith:BITGBVT7","canonical_record":{"source":{"id":"1810.12797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-30T15:07:58Z","cross_cats_sorted":[],"title_canon_sha256":"23121f7aa7090482886683f1b169c6483d65ba79a6a0e608c1c22747f4d49ce3","abstract_canon_sha256":"8b30570a8729350f377d45295fe3fecffa1283797afde965f6084fd26fa84120"},"schema_version":"1.0"},"canonical_sha256":"0a2660d67f14f84d1d9ca735e0607b0efae05881a72b5efa83695d192fbe276c","source":{"kind":"arxiv","id":"1810.12797","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.12797","created_at":"2026-05-18T00:01:54Z"},{"alias_kind":"arxiv_version","alias_value":"1810.12797v1","created_at":"2026-05-18T00:01:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12797","created_at":"2026-05-18T00:01:54Z"},{"alias_kind":"pith_short_12","alias_value":"BITGBVT7CT4E","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BITGBVT7CT4E2HM4","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BITGBVT7","created_at":"2026-05-18T12:32:16Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:BITGBVT7CT4E2HM4U426AYD3B3","target":"record","payload":{"canonical_record":{"source":{"id":"1810.12797","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-30T15:07:58Z","cross_cats_sorted":[],"title_canon_sha256":"23121f7aa7090482886683f1b169c6483d65ba79a6a0e608c1c22747f4d49ce3","abstract_canon_sha256":"8b30570a8729350f377d45295fe3fecffa1283797afde965f6084fd26fa84120"},"schema_version":"1.0"},"canonical_sha256":"0a2660d67f14f84d1d9ca735e0607b0efae05881a72b5efa83695d192fbe276c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:01:54.118502Z","signature_b64":"3Ys8Z6meeaeH76iMUih/Bf76rYx4J/WZ2mvgcqW58+HmGGUImdJfAXbBlkDc1tKwBJokyIjz6ps94lP34JODCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0a2660d67f14f84d1d9ca735e0607b0efae05881a72b5efa83695d192fbe276c","last_reissued_at":"2026-05-18T00:01:54.118098Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:01:54.118098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1810.12797","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":"2026-05-18T00:01:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OotKdyidG9rUqUDgCorFaZjBjEgixAxk7hwo+j12B5KpgDtS/XuCiqa0iMGdOUvRIAgy1dEzGxsCFSPgWKevBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:52:53.699139Z"},"content_sha256":"d91074a7b86b88aa7878667064db15a20c43263959d8e50c8cdad2ef587ba3fa","schema_version":"1.0","event_id":"sha256:d91074a7b86b88aa7878667064db15a20c43263959d8e50c8cdad2ef587ba3fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:BITGBVT7CT4E2HM4U426AYD3B3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Ultrasensitive Displacement Noise Measurement of Carbon Nanotube Mechanical Resonators","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mes-hall","authors_text":"A. Bachtold, A. Noury, C. Samanta, C. Urgell, J. Vergara-Cruz, Q. Dong, S. L. De Bonis, W. Yang, Y. Jin","submitted_at":"2018-10-30T15:07:58Z","abstract_excerpt":"Mechanical resonators based on a single carbon nanotube are exceptional sensors of mass and force. The force sensitivity in these ultra-light resonators is often limited by the noise in the detection of the vibrations. Here, we report on an ultra-sensitive scheme based on a RLC resonator and a low-temperature amplifier to detect nanotube vibrations. We also show a new fabrication process of electromechanical nanotube resonators to reduce the separation between the suspended nanotube and the gate electrode down to $\\sim 150$~nm. These advances in detection and fabrication allow us to reach $0.5"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12797","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":"2026-05-18T00:01:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5nXDJ6BTx0lLh/nhiasWd82vVntKSBLMb5UujQDtkX14MJbNd2JjlauiLD6a5rqImtQUCfBKSdn/dWVVbI26Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T20:52:53.699510Z"},"content_sha256":"2770586c41e64bdd61896ebb3967f21bd0e486737c3c5328978797eeef53067e","schema_version":"1.0","event_id":"sha256:2770586c41e64bdd61896ebb3967f21bd0e486737c3c5328978797eeef53067e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BITGBVT7CT4E2HM4U426AYD3B3/bundle.json","state_url":"https://pith.science/pith/BITGBVT7CT4E2HM4U426AYD3B3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BITGBVT7CT4E2HM4U426AYD3B3/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":"2026-06-01T20:52:53Z","links":{"resolver":"https://pith.science/pith/BITGBVT7CT4E2HM4U426AYD3B3","bundle":"https://pith.science/pith/BITGBVT7CT4E2HM4U426AYD3B3/bundle.json","state":"https://pith.science/pith/BITGBVT7CT4E2HM4U426AYD3B3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BITGBVT7CT4E2HM4U426AYD3B3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:BITGBVT7CT4E2HM4U426AYD3B3","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":"8b30570a8729350f377d45295fe3fecffa1283797afde965f6084fd26fa84120","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-30T15:07:58Z","title_canon_sha256":"23121f7aa7090482886683f1b169c6483d65ba79a6a0e608c1c22747f4d49ce3"},"schema_version":"1.0","source":{"id":"1810.12797","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1810.12797","created_at":"2026-05-18T00:01:54Z"},{"alias_kind":"arxiv_version","alias_value":"1810.12797v1","created_at":"2026-05-18T00:01:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1810.12797","created_at":"2026-05-18T00:01:54Z"},{"alias_kind":"pith_short_12","alias_value":"BITGBVT7CT4E","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_16","alias_value":"BITGBVT7CT4E2HM4","created_at":"2026-05-18T12:32:16Z"},{"alias_kind":"pith_short_8","alias_value":"BITGBVT7","created_at":"2026-05-18T12:32:16Z"}],"graph_snapshots":[{"event_id":"sha256:2770586c41e64bdd61896ebb3967f21bd0e486737c3c5328978797eeef53067e","target":"graph","created_at":"2026-05-18T00:01:54Z","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":"Mechanical resonators based on a single carbon nanotube are exceptional sensors of mass and force. The force sensitivity in these ultra-light resonators is often limited by the noise in the detection of the vibrations. Here, we report on an ultra-sensitive scheme based on a RLC resonator and a low-temperature amplifier to detect nanotube vibrations. We also show a new fabrication process of electromechanical nanotube resonators to reduce the separation between the suspended nanotube and the gate electrode down to $\\sim 150$~nm. These advances in detection and fabrication allow us to reach $0.5","authors_text":"A. Bachtold, A. Noury, C. Samanta, C. Urgell, J. Vergara-Cruz, Q. Dong, S. L. De Bonis, W. Yang, Y. Jin","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-30T15:07:58Z","title":"Ultrasensitive Displacement Noise Measurement of Carbon Nanotube Mechanical Resonators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1810.12797","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:d91074a7b86b88aa7878667064db15a20c43263959d8e50c8cdad2ef587ba3fa","target":"record","created_at":"2026-05-18T00:01:54Z","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":"8b30570a8729350f377d45295fe3fecffa1283797afde965f6084fd26fa84120","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-10-30T15:07:58Z","title_canon_sha256":"23121f7aa7090482886683f1b169c6483d65ba79a6a0e608c1c22747f4d49ce3"},"schema_version":"1.0","source":{"id":"1810.12797","kind":"arxiv","version":1}},"canonical_sha256":"0a2660d67f14f84d1d9ca735e0607b0efae05881a72b5efa83695d192fbe276c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0a2660d67f14f84d1d9ca735e0607b0efae05881a72b5efa83695d192fbe276c","first_computed_at":"2026-05-18T00:01:54.118098Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:01:54.118098Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3Ys8Z6meeaeH76iMUih/Bf76rYx4J/WZ2mvgcqW58+HmGGUImdJfAXbBlkDc1tKwBJokyIjz6ps94lP34JODCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:01:54.118502Z","signed_message":"canonical_sha256_bytes"},"source_id":"1810.12797","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d91074a7b86b88aa7878667064db15a20c43263959d8e50c8cdad2ef587ba3fa","sha256:2770586c41e64bdd61896ebb3967f21bd0e486737c3c5328978797eeef53067e"],"state_sha256":"fa0403fc06845010409bcc0898e134f49d3e7c6b29fd32a73602730dbf111622"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YRyHgjy8g+AOc7UHujde4OLA8s/rXNkWZcZHPMhGrwQtfFAWRj+cQLl9/6abRe7m9u0IP15BHBEq3WScdH09Dg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T20:52:53.701668Z","bundle_sha256":"87322d367da92dd1a12b43623f322e2a14b221e1685ff7284aab83b71599aeb6"}}