{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:YITUJNTMP3QTOTIM2HNIOJ3ORD","short_pith_number":"pith:YITUJNTM","canonical_record":{"source":{"id":"1902.02830","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-07T20:20:52Z","cross_cats_sorted":[],"title_canon_sha256":"37f8a5e45e3cc92a24b22085b184a6e564a1e1a8ddb639c893aae3eb191a950f","abstract_canon_sha256":"a2a855ecff53d5e142b41cd3ed6e609d02dfaf883deeba89b31f2a6137ec956d"},"schema_version":"1.0"},"canonical_sha256":"c22744b66c7ee1374d0cd1da87276e88e3d387730370efb27ff79653de2c2a97","source":{"kind":"arxiv","id":"1902.02830","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02830","created_at":"2026-05-17T23:48:20Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02830v1","created_at":"2026-05-17T23:48:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02830","created_at":"2026-05-17T23:48:20Z"},{"alias_kind":"pith_short_12","alias_value":"YITUJNTMP3QT","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"YITUJNTMP3QTOTIM","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"YITUJNTM","created_at":"2026-05-18T12:33:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:YITUJNTMP3QTOTIM2HNIOJ3ORD","target":"record","payload":{"canonical_record":{"source":{"id":"1902.02830","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-07T20:20:52Z","cross_cats_sorted":[],"title_canon_sha256":"37f8a5e45e3cc92a24b22085b184a6e564a1e1a8ddb639c893aae3eb191a950f","abstract_canon_sha256":"a2a855ecff53d5e142b41cd3ed6e609d02dfaf883deeba89b31f2a6137ec956d"},"schema_version":"1.0"},"canonical_sha256":"c22744b66c7ee1374d0cd1da87276e88e3d387730370efb27ff79653de2c2a97","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:20.003714Z","signature_b64":"teQf2hI7HFm2alDIWDGllsa0b0CrxnePSHn3l3oBxv0sfMna+5eGORXegZQwK00xRuMgC/wOb+Dr3JdRrfqpCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c22744b66c7ee1374d0cd1da87276e88e3d387730370efb27ff79653de2c2a97","last_reissued_at":"2026-05-17T23:48:20.003058Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:20.003058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.02830","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":"2026-05-17T23:48:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eK7f6G8bK+UaueYEzjM6h9bKWg9Eo40JPSXlVJZ9bR3HiiuHNmIX37geb2Qmqk8mwYeFtGYGqrpcsFj5VuruAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T13:35:17.909538Z"},"content_sha256":"80fcdc39a4f99fdd97d4fb50a7bf0050f24f937d786af4057ddf8ede695fff52","schema_version":"1.0","event_id":"sha256:80fcdc39a4f99fdd97d4fb50a7bf0050f24f937d786af4057ddf8ede695fff52"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:YITUJNTMP3QTOTIM2HNIOJ3ORD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Planarized Fabrication Process With Two Layers of SIS Josephson Junctions and Integration of SIS and SFS {\\pi}-Junctions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.supr-con","authors_text":"Alexandra L. Day, Alex Wynn, Evan Golden, Leonard M. Johnson, Ravi Rastogi, Scott Zarr, Sergey K. Tolpygo, Terence J. Weir, Vladimir Bolkhovsky","submitted_at":"2019-02-07T20:20:52Z","abstract_excerpt":"We present our new fabrication Process for Superconductor Electronics (PSE2) that integrates two (2) layers of Josephson junctions in a fully planarized multilayer process on 200-mm wafers. The two junction layers can be, e.g., conventional Superconductor-Insulator-Superconductor (SIS) Nb/Al/AlO_x/Nb junctions with the same or different Josephson critical current densities, J_c. The process also allows integration of high-J_c Superconductor-Ferromagnet-Superconductor (SFS) or SFS'S JJs on the first junction layer with Nb/Al/AlO_x/Nb trilayer junctions on the second junction layer, or vice vers"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02830","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":"2026-05-17T23:48:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"EuiScpZu8QOSuHge4XVVHR1mpffl9mshzpte5KdCtppw+fR7rBKEuiV9AKhkQo6KhCozaQMd48Mwat9flsSGCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T13:35:17.909881Z"},"content_sha256":"c4462a1b1aad22a07f9552930c3d335f1ce89471c2ac24a31f8c686a7ba71984","schema_version":"1.0","event_id":"sha256:c4462a1b1aad22a07f9552930c3d335f1ce89471c2ac24a31f8c686a7ba71984"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YITUJNTMP3QTOTIM2HNIOJ3ORD/bundle.json","state_url":"https://pith.science/pith/YITUJNTMP3QTOTIM2HNIOJ3ORD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YITUJNTMP3QTOTIM2HNIOJ3ORD/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":"2026-06-11T13:35:17Z","links":{"resolver":"https://pith.science/pith/YITUJNTMP3QTOTIM2HNIOJ3ORD","bundle":"https://pith.science/pith/YITUJNTMP3QTOTIM2HNIOJ3ORD/bundle.json","state":"https://pith.science/pith/YITUJNTMP3QTOTIM2HNIOJ3ORD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YITUJNTMP3QTOTIM2HNIOJ3ORD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:YITUJNTMP3QTOTIM2HNIOJ3ORD","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":"a2a855ecff53d5e142b41cd3ed6e609d02dfaf883deeba89b31f2a6137ec956d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-07T20:20:52Z","title_canon_sha256":"37f8a5e45e3cc92a24b22085b184a6e564a1e1a8ddb639c893aae3eb191a950f"},"schema_version":"1.0","source":{"id":"1902.02830","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.02830","created_at":"2026-05-17T23:48:20Z"},{"alias_kind":"arxiv_version","alias_value":"1902.02830v1","created_at":"2026-05-17T23:48:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.02830","created_at":"2026-05-17T23:48:20Z"},{"alias_kind":"pith_short_12","alias_value":"YITUJNTMP3QT","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_16","alias_value":"YITUJNTMP3QTOTIM","created_at":"2026-05-18T12:33:33Z"},{"alias_kind":"pith_short_8","alias_value":"YITUJNTM","created_at":"2026-05-18T12:33:33Z"}],"graph_snapshots":[{"event_id":"sha256:c4462a1b1aad22a07f9552930c3d335f1ce89471c2ac24a31f8c686a7ba71984","target":"graph","created_at":"2026-05-17T23:48:20Z","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 present our new fabrication Process for Superconductor Electronics (PSE2) that integrates two (2) layers of Josephson junctions in a fully planarized multilayer process on 200-mm wafers. The two junction layers can be, e.g., conventional Superconductor-Insulator-Superconductor (SIS) Nb/Al/AlO_x/Nb junctions with the same or different Josephson critical current densities, J_c. The process also allows integration of high-J_c Superconductor-Ferromagnet-Superconductor (SFS) or SFS'S JJs on the first junction layer with Nb/Al/AlO_x/Nb trilayer junctions on the second junction layer, or vice vers","authors_text":"Alexandra L. Day, Alex Wynn, Evan Golden, Leonard M. Johnson, Ravi Rastogi, Scott Zarr, Sergey K. Tolpygo, Terence J. Weir, Vladimir Bolkhovsky","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-07T20:20:52Z","title":"Planarized Fabrication Process With Two Layers of SIS Josephson Junctions and Integration of SIS and SFS {\\pi}-Junctions"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.02830","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":"sha256:80fcdc39a4f99fdd97d4fb50a7bf0050f24f937d786af4057ddf8ede695fff52","target":"record","created_at":"2026-05-17T23:48:20Z","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":"a2a855ecff53d5e142b41cd3ed6e609d02dfaf883deeba89b31f2a6137ec956d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.supr-con","submitted_at":"2019-02-07T20:20:52Z","title_canon_sha256":"37f8a5e45e3cc92a24b22085b184a6e564a1e1a8ddb639c893aae3eb191a950f"},"schema_version":"1.0","source":{"id":"1902.02830","kind":"arxiv","version":1}},"canonical_sha256":"c22744b66c7ee1374d0cd1da87276e88e3d387730370efb27ff79653de2c2a97","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c22744b66c7ee1374d0cd1da87276e88e3d387730370efb27ff79653de2c2a97","first_computed_at":"2026-05-17T23:48:20.003058Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:48:20.003058Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"teQf2hI7HFm2alDIWDGllsa0b0CrxnePSHn3l3oBxv0sfMna+5eGORXegZQwK00xRuMgC/wOb+Dr3JdRrfqpCw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:48:20.003714Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.02830","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:80fcdc39a4f99fdd97d4fb50a7bf0050f24f937d786af4057ddf8ede695fff52","sha256:c4462a1b1aad22a07f9552930c3d335f1ce89471c2ac24a31f8c686a7ba71984"],"state_sha256":"4ecbb801954727f6b921192f4d11c3e8fb33917d5dd2c6641f2e2abab23afac2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pnDZwBtEmfIQShGxledJ1eHEQ0hdxMjKddl0vTGC/dqZX/aMbEs3qb0NFEQ4D+hsV4jOoiYnnee49qkS5nWuCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T13:35:17.911910Z","bundle_sha256":"de0211a9d808cad6ef7c7372d1833dbfca4b6df7e2a0e1f2e9693013988b09d4"}}