{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:AVVZR4WPLMPFTBW6IJON5TLECJ","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":"a5f0e81f949095d49053e85a4a9d5bc28ef2254af56484f175e9a06bad3b58da","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-05-18T07:58:19Z","title_canon_sha256":"101f45795f52112e2ad8d1a47197aba4d7ce6553e483af660e354252ca4f224a"},"schema_version":"1.0","source":{"id":"1705.06450","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1705.06450","created_at":"2026-05-18T00:32:10Z"},{"alias_kind":"arxiv_version","alias_value":"1705.06450v2","created_at":"2026-05-18T00:32:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1705.06450","created_at":"2026-05-18T00:32:10Z"},{"alias_kind":"pith_short_12","alias_value":"AVVZR4WPLMPF","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"AVVZR4WPLMPFTBW6","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"AVVZR4WP","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:e39fdd0ea7603579eb2d8d5d1903d99629f35481c80a1a77742087b649a61142","target":"graph","created_at":"2026-05-18T00:32:10Z","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":"Two-particle backscattering in time-reversal invariant interacting helical electron systems can lead to the formation of quasiparticles with charge $e/2$. We propose a way to detect such states by means of the Josephson effect in the presence of proximity-induced superconductivity. In this case, the existence of $e/2$ charges leads to an $8 \\pi$-periodic component of the Josephson current which can be identified through measurement of Shapiro steps in Josephson junctions. In particular, we show that even when there is weak explicit time-reversal symmetry breaking, which causes the two-particle","authors_text":"Christopher J. Pedder, Rakesh Tiwari, Thomas L. Schmidt, Tobias Meng","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-05-18T07:58:19Z","title":"Missing Shapiro steps and the $8\\pi$-periodic Josephson effect in interacting helical electron systems"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1705.06450","kind":"arxiv","version":2},"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:b642ef55770c6592d97feb5a6727d3421fd89f0681b062b778ce278f7963784b","target":"record","created_at":"2026-05-18T00:32:10Z","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":"a5f0e81f949095d49053e85a4a9d5bc28ef2254af56484f175e9a06bad3b58da","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2017-05-18T07:58:19Z","title_canon_sha256":"101f45795f52112e2ad8d1a47197aba4d7ce6553e483af660e354252ca4f224a"},"schema_version":"1.0","source":{"id":"1705.06450","kind":"arxiv","version":2}},"canonical_sha256":"056b98f2cf5b1e5986de425cdecd641275be752c3bf1861112edad92878fe581","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"056b98f2cf5b1e5986de425cdecd641275be752c3bf1861112edad92878fe581","first_computed_at":"2026-05-18T00:32:10.177526Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:32:10.177526Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"M1G8xsUiEw0Wc4KxhqMe/QI6LZDQ/XBO2yjxJ0lUjnQSksozaPzq9s/zJEJ9eamuToGgelf9O4cYwiCU8TonDA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:32:10.178270Z","signed_message":"canonical_sha256_bytes"},"source_id":"1705.06450","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b642ef55770c6592d97feb5a6727d3421fd89f0681b062b778ce278f7963784b","sha256:e39fdd0ea7603579eb2d8d5d1903d99629f35481c80a1a77742087b649a61142"],"state_sha256":"aa26494900bd693253ca3a3ba10b2846d3919e451a487f465609093282d22130"}