{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:1998:FEHNW6BSRNW5MEZJIUB6HSOAZ4","short_pith_number":"pith:FEHNW6BS","canonical_record":{"source":{"id":"cond-mat/9805349","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1998-05-27T08:40:00Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"e5ac88d2af5eefbfbfec4e76b52df79bd685fda04a5d3f8b5207337be32f7e2d","abstract_canon_sha256":"c3afff01cea6c3905798cfa1191ab48df9132b5673ba68bc4f09ce614ac183c8"},"schema_version":"1.0"},"canonical_sha256":"290edb78328b6dd613294503e3c9c0cf2364038c231729006f50a53477037fb8","source":{"kind":"arxiv","id":"cond-mat/9805349","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9805349","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9805349v1","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9805349","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"pith_short_12","alias_value":"FEHNW6BSRNW5","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"FEHNW6BSRNW5MEZJ","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"FEHNW6BS","created_at":"2026-05-18T12:25:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:1998:FEHNW6BSRNW5MEZJIUB6HSOAZ4","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/9805349","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1998-05-27T08:40:00Z","cross_cats_sorted":["cond-mat.supr-con"],"title_canon_sha256":"e5ac88d2af5eefbfbfec4e76b52df79bd685fda04a5d3f8b5207337be32f7e2d","abstract_canon_sha256":"c3afff01cea6c3905798cfa1191ab48df9132b5673ba68bc4f09ce614ac183c8"},"schema_version":"1.0"},"canonical_sha256":"290edb78328b6dd613294503e3c9c0cf2364038c231729006f50a53477037fb8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:07:07.288822Z","signature_b64":"UFPiZupuPRQhUP+i7Ql2kJ3WrkRoeGkfvJ4BhIIdq4ronF4znt18omWf9ze+LeUFYME5dZOWtLhUVDnsLtF9Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"290edb78328b6dd613294503e3c9c0cf2364038c231729006f50a53477037fb8","last_reissued_at":"2026-05-18T01:07:07.288299Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:07:07.288299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/9805349","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":"2026-05-18T01:07:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"C9H9QiXWTW09AVVxb7g51aQtaokcfuhpexWMAgy7H2nHgD5j9wLoXuMXbg4z6+IHNmXFNN6yZA/1HNVFZB2OAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:54:39.964233Z"},"content_sha256":"13e3f62d040359142d4ceb858e76914d095d7981e11277202a1dd53f6cb13907","schema_version":"1.0","event_id":"sha256:13e3f62d040359142d4ceb858e76914d095d7981e11277202a1dd53f6cb13907"},{"event_type":"graph_snapshot","subject_pith_number":"pith:1998:FEHNW6BSRNW5MEZJIUB6HSOAZ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Josephson Junctions defined by a Nano-Plough","license":"","headline":"","cross_cats":["cond-mat.supr-con"],"primary_cat":"cond-mat.mes-hall","authors_text":"B. Irmer, F. Simmel, H. Lorenz, J.P. Kotthaus, R.H. Blick, W. Goedel","submitted_at":"1998-05-27T08:40:00Z","abstract_excerpt":"We define superconducting constrictions by ploughing a deposited Aluminum film with a scanning probe microscope. The microscope tip is modified by electron beam deposition to form a nano-plough of diamond-like hardness, what allows the definition of highly transparent Josephson junctions. Additionally a dc-SQUID is fabricated to verify appropriate functioning of the junctions. The devices are easily integrated in mesoscopic devices as local radiation sources and can be used as tunable on-chip millimeter wave sources."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9805349","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":"2026-05-18T01:07:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gfIqshw4YApqoI8pPthB4e5LFMxpFgBmvZbQfjAd8lf2G32FrsKdqcYjOT1Blc4B9c3FVc+pTLIh1gL9q+PIBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T02:54:39.964598Z"},"content_sha256":"5f031d76b013c69dcc25e3bdcbd07adafa9c66b0be220f0b85917e4690b1e9e6","schema_version":"1.0","event_id":"sha256:5f031d76b013c69dcc25e3bdcbd07adafa9c66b0be220f0b85917e4690b1e9e6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FEHNW6BSRNW5MEZJIUB6HSOAZ4/bundle.json","state_url":"https://pith.science/pith/FEHNW6BSRNW5MEZJIUB6HSOAZ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FEHNW6BSRNW5MEZJIUB6HSOAZ4/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":"2026-06-03T02:54:39Z","links":{"resolver":"https://pith.science/pith/FEHNW6BSRNW5MEZJIUB6HSOAZ4","bundle":"https://pith.science/pith/FEHNW6BSRNW5MEZJIUB6HSOAZ4/bundle.json","state":"https://pith.science/pith/FEHNW6BSRNW5MEZJIUB6HSOAZ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FEHNW6BSRNW5MEZJIUB6HSOAZ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1998:FEHNW6BSRNW5MEZJIUB6HSOAZ4","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":"c3afff01cea6c3905798cfa1191ab48df9132b5673ba68bc4f09ce614ac183c8","cross_cats_sorted":["cond-mat.supr-con"],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1998-05-27T08:40:00Z","title_canon_sha256":"e5ac88d2af5eefbfbfec4e76b52df79bd685fda04a5d3f8b5207337be32f7e2d"},"schema_version":"1.0","source":{"id":"cond-mat/9805349","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/9805349","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/9805349v1","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/9805349","created_at":"2026-05-18T01:07:07Z"},{"alias_kind":"pith_short_12","alias_value":"FEHNW6BSRNW5","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_16","alias_value":"FEHNW6BSRNW5MEZJ","created_at":"2026-05-18T12:25:49Z"},{"alias_kind":"pith_short_8","alias_value":"FEHNW6BS","created_at":"2026-05-18T12:25:49Z"}],"graph_snapshots":[{"event_id":"sha256:5f031d76b013c69dcc25e3bdcbd07adafa9c66b0be220f0b85917e4690b1e9e6","target":"graph","created_at":"2026-05-18T01:07:07Z","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 define superconducting constrictions by ploughing a deposited Aluminum film with a scanning probe microscope. The microscope tip is modified by electron beam deposition to form a nano-plough of diamond-like hardness, what allows the definition of highly transparent Josephson junctions. Additionally a dc-SQUID is fabricated to verify appropriate functioning of the junctions. The devices are easily integrated in mesoscopic devices as local radiation sources and can be used as tunable on-chip millimeter wave sources.","authors_text":"B. Irmer, F. Simmel, H. Lorenz, J.P. Kotthaus, R.H. Blick, W. Goedel","cross_cats":["cond-mat.supr-con"],"headline":"","license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1998-05-27T08:40:00Z","title":"Josephson Junctions defined by a Nano-Plough"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/9805349","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":"sha256:13e3f62d040359142d4ceb858e76914d095d7981e11277202a1dd53f6cb13907","target":"record","created_at":"2026-05-18T01:07:07Z","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":"c3afff01cea6c3905798cfa1191ab48df9132b5673ba68bc4f09ce614ac183c8","cross_cats_sorted":["cond-mat.supr-con"],"license":"","primary_cat":"cond-mat.mes-hall","submitted_at":"1998-05-27T08:40:00Z","title_canon_sha256":"e5ac88d2af5eefbfbfec4e76b52df79bd685fda04a5d3f8b5207337be32f7e2d"},"schema_version":"1.0","source":{"id":"cond-mat/9805349","kind":"arxiv","version":1}},"canonical_sha256":"290edb78328b6dd613294503e3c9c0cf2364038c231729006f50a53477037fb8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"290edb78328b6dd613294503e3c9c0cf2364038c231729006f50a53477037fb8","first_computed_at":"2026-05-18T01:07:07.288299Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:07:07.288299Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"UFPiZupuPRQhUP+i7Ql2kJ3WrkRoeGkfvJ4BhIIdq4ronF4znt18omWf9ze+LeUFYME5dZOWtLhUVDnsLtF9Dw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:07:07.288822Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/9805349","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13e3f62d040359142d4ceb858e76914d095d7981e11277202a1dd53f6cb13907","sha256:5f031d76b013c69dcc25e3bdcbd07adafa9c66b0be220f0b85917e4690b1e9e6"],"state_sha256":"8f7312ff60583070fb809fbc077107b9ea20705d179fed7a0eeb08e0ece8da90"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2pY7huMER/Zh9o8CrnfacGX6C89HnccNg0IluOtCn8G0BbhpG1bNBSOfG25nL5BlnSmTPYmmRmJ69LjbyQmwCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T02:54:39.966755Z","bundle_sha256":"fbfe17f63b13721d51d766a09200e5c1913973227c4788132c21d1127b4b4b5f"}}