{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:HBGM74GD2CPE6QDP77W7NKT3E5","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":"c0961a6aad0a8be4f782e8b93bb1ad521816fafa652942d48bf15fbe416e0235","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-07-22T08:45:54Z","title_canon_sha256":"aefacb4becba8a277892265cbe2496853d9f7233145b4811d16d0b1aee6f2c9f"},"schema_version":"1.0","source":{"id":"2507.16357","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2507.16357","created_at":"2026-07-05T11:41:08Z"},{"alias_kind":"arxiv_version","alias_value":"2507.16357v1","created_at":"2026-07-05T11:41:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2507.16357","created_at":"2026-07-05T11:41:08Z"},{"alias_kind":"pith_short_12","alias_value":"HBGM74GD2CPE","created_at":"2026-07-05T11:41:08Z"},{"alias_kind":"pith_short_16","alias_value":"HBGM74GD2CPE6QDP","created_at":"2026-07-05T11:41:08Z"},{"alias_kind":"pith_short_8","alias_value":"HBGM74GD","created_at":"2026-07-05T11:41:08Z"}],"graph_snapshots":[{"event_id":"sha256:f54a38b6ab312d0e8dbcdf0d83c45fbe01df344cf781bfd495631d697b81cd6c","target":"graph","created_at":"2026-07-05T11:41:08Z","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/2507.16357/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Lightwave-driven scanning tunnelling microscopy (STM) at near-IR frequencies promises an unprecedented combination of atomic spatial resolution and temporal resolution approaching the attosecond range. To achieve this goal, high-sensitivity optical control and detection of sub-cycle tunnelling currents must be achieved at the STM junction. Here, we demonstrate the generation and detection of coherent ultrafast currents across the junction of an STM illuminated by near-infrared single-cycle pulses. We introduce a novel modulation scheme that avoids time-dependent thermal loading while selective","authors_text":"Alfred Leitenstorfer, Andrea Rossetti, Christoph Schoenfeld, Daniele Brida, Florian Pagnini, Majdi Assaid, Markus Ludwig","cross_cats":["physics.app-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-07-22T08:45:54Z","title":"Modulation of sub-optical cycle photocurrents in an ultrafast near-infrared scanning tunnelling microscope"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2507.16357","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":"sha256:46efe85fa78a44727408e5bd19f55d49bf8933d4ac8708131ab20cea9f6273ae","target":"record","created_at":"2026-07-05T11:41:08Z","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":"c0961a6aad0a8be4f782e8b93bb1ad521816fafa652942d48bf15fbe416e0235","cross_cats_sorted":["physics.app-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2025-07-22T08:45:54Z","title_canon_sha256":"aefacb4becba8a277892265cbe2496853d9f7233145b4811d16d0b1aee6f2c9f"},"schema_version":"1.0","source":{"id":"2507.16357","kind":"arxiv","version":1}},"canonical_sha256":"384ccff0c3d09e4f406fffedf6aa7b274d71efd201c23a0b9ea1d86c8aa568d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"384ccff0c3d09e4f406fffedf6aa7b274d71efd201c23a0b9ea1d86c8aa568d1","first_computed_at":"2026-07-05T11:41:08.010260Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:41:08.010260Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"68wch1YmeAiCzHoQdr/q9dPgduiR33UehPgbx7DToAlYFGAawnvTlxcVkKVSjjh6OhnJ8Ar5sEYWmww0E3ltBw==","signature_status":"signed_v1","signed_at":"2026-07-05T11:41:08.010697Z","signed_message":"canonical_sha256_bytes"},"source_id":"2507.16357","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46efe85fa78a44727408e5bd19f55d49bf8933d4ac8708131ab20cea9f6273ae","sha256:f54a38b6ab312d0e8dbcdf0d83c45fbe01df344cf781bfd495631d697b81cd6c"],"state_sha256":"e667a3060726eefa9835512f7608c4c84ea464afdc691721828992b341d023f8"}