{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2004:3VPZZHKWVDRS3MZVXDF7JM4ESU","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":"2d4bea779dba8d234ea1a202e19d3dc1f43b8ca3002808fe51d6d859ca3c2e1c","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.other","submitted_at":"2004-02-04T14:12:22Z","title_canon_sha256":"26d94e5a03309cc32b9077545d3ed030ccb1d6d3636ae3e699ffa958c88e8b0a"},"schema_version":"1.0","source":{"id":"cond-mat/0402130","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0402130","created_at":"2026-07-04T14:20:52Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0402130v1","created_at":"2026-07-04T14:20:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0402130","created_at":"2026-07-04T14:20:52Z"},{"alias_kind":"pith_short_12","alias_value":"3VPZZHKWVDRS","created_at":"2026-07-04T14:20:52Z"},{"alias_kind":"pith_short_16","alias_value":"3VPZZHKWVDRS3MZV","created_at":"2026-07-04T14:20:52Z"},{"alias_kind":"pith_short_8","alias_value":"3VPZZHKW","created_at":"2026-07-04T14:20:52Z"}],"graph_snapshots":[{"event_id":"sha256:766ab3b747622549ead430199c496f04c2dc5b0533a5a2483389ba88ed98106d","target":"graph","created_at":"2026-07-04T14:20:52Z","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/cond-mat/0402130/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We describe a set up for measurements of low frequency (1 mHz < f < 20 Hz) conductance fluctuations in a solid conductor. The set-up uses a five probe a.c. measurement technique and extensive digital signal processing to reach a noise floor down to $S_{v}(f) \\leq 10^{-20}$ V$^{2}$Hz$^{-1}$. The set up also allows measurement of noise using an a.c. in presence of a superimposed direct current. This feature is desirable in studies of electromigration damage or in systems that show non-linear conductivity. In addition, we describe a scheme which allows us to obtain the probability density functio","authors_text":"A. K. Raychaudhuri, Arindam Ghosh, Aveek bid, Swastik Kar","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.other","submitted_at":"2004-02-04T14:12:22Z","title":"A set-up for measurement of low frequency conductance fluctuation (noise) using digital signal processing techniques"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0402130","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":"sha256:8ea5d4b921f1145b0cadcae471c6162ca70cc809c96fdf3efae160ac91000ad1","target":"record","created_at":"2026-07-04T14:20:52Z","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":"2d4bea779dba8d234ea1a202e19d3dc1f43b8ca3002808fe51d6d859ca3c2e1c","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.other","submitted_at":"2004-02-04T14:12:22Z","title_canon_sha256":"26d94e5a03309cc32b9077545d3ed030ccb1d6d3636ae3e699ffa958c88e8b0a"},"schema_version":"1.0","source":{"id":"cond-mat/0402130","kind":"arxiv","version":1}},"canonical_sha256":"dd5f9c9d56a8e32db335b8cbf4b3849525656cb863f30e8c69bd9d122164ad35","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"dd5f9c9d56a8e32db335b8cbf4b3849525656cb863f30e8c69bd9d122164ad35","first_computed_at":"2026-07-04T14:20:52.485046Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:20:52.485046Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9v72qT9yiHQ/SRp12qsuraxZ1GtnizxkRyhGOK21/MWX9SD7KnpLgJLBAhjaYOKrdqMpnXV/iv/hclN7pUA8BA==","signature_status":"signed_v1","signed_at":"2026-07-04T14:20:52.485491Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0402130","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8ea5d4b921f1145b0cadcae471c6162ca70cc809c96fdf3efae160ac91000ad1","sha256:766ab3b747622549ead430199c496f04c2dc5b0533a5a2483389ba88ed98106d"],"state_sha256":"516269fe2d816820cec9ace00c0dac828992d0c43764483e946a59a29e573947"}