{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:66ZIWLG2VJVJOWACB74PN6WPR7","short_pith_number":"pith:66ZIWLG2","canonical_record":{"source":{"id":"2205.11161","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-05-23T09:52:49Z","cross_cats_sorted":[],"title_canon_sha256":"e05bd41c485267db78814d6c74e16acc9683bb99e66b43e7a784783e483037c8","abstract_canon_sha256":"492159227e4906c591669d045dcfdf029f191216e95651ef341c4b6df475e75d"},"schema_version":"1.0"},"canonical_sha256":"f7b28b2cdaaa6a9758020ff8f6facf8fd94e92c6f7c70855c14f92c4a04a3d28","source":{"kind":"arxiv","id":"2205.11161","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.11161","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"arxiv_version","alias_value":"2205.11161v1","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.11161","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"pith_short_12","alias_value":"66ZIWLG2VJVJ","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"pith_short_16","alias_value":"66ZIWLG2VJVJOWAC","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"pith_short_8","alias_value":"66ZIWLG2","created_at":"2026-07-05T04:25:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:66ZIWLG2VJVJOWACB74PN6WPR7","target":"record","payload":{"canonical_record":{"source":{"id":"2205.11161","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-05-23T09:52:49Z","cross_cats_sorted":[],"title_canon_sha256":"e05bd41c485267db78814d6c74e16acc9683bb99e66b43e7a784783e483037c8","abstract_canon_sha256":"492159227e4906c591669d045dcfdf029f191216e95651ef341c4b6df475e75d"},"schema_version":"1.0"},"canonical_sha256":"f7b28b2cdaaa6a9758020ff8f6facf8fd94e92c6f7c70855c14f92c4a04a3d28","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:25:36.226187Z","signature_b64":"xY/wqeC7Bo5eyphb4Sq1uUiCaQSF/Uudbd/iPiORjWhKKTQ+tj3CIFxjiDfYJg0FDPME9wCj/763JktjfrQVBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f7b28b2cdaaa6a9758020ff8f6facf8fd94e92c6f7c70855c14f92c4a04a3d28","last_reissued_at":"2026-07-05T04:25:36.225662Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:25:36.225662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.11161","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":"2026-07-05T04:25:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IK6GsiVRjooS1yDSoejbXY0GxLCNkK3prftlw9kdUdDn5hvAeeZHAFwYrWMjjGHPQbAceobxYNZ9IW/zbM3fCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T12:18:55.437854Z"},"content_sha256":"423f13b65278920e81dab5d5fe9e923877844abbef5548ce8b73afb933fe7b28","schema_version":"1.0","event_id":"sha256:423f13b65278920e81dab5d5fe9e923877844abbef5548ce8b73afb933fe7b28"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:66ZIWLG2VJVJOWACB74PN6WPR7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quantum interference visibility spectroscopy in two-color photoemission from tungsten needle tips","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Ang Li, Peter Hommelhoff, Philip Dienstbier, Yiming Pan","submitted_at":"2022-05-23T09:52:49Z","abstract_excerpt":"When two-color femtosecond laser pulses interact with matter, electrons can be emitted through various multiphoton excitation pathways. Quantum interference between these pathways gives rise to a strong oscillation of the photoemitted electron current, experimentally characterized by its visibility. In this work, we demonstrate two-color visibility spectroscopy of multi-photon photoemission from a solid-state nanoemitter. We investigate the quantum pathway interference visibility over an almost octave-spanning wavelength range of the fundamental femtosecond laser pulses and their second-harmon"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.11161","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2205.11161/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T04:25:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VydCI/HKYyqS4ApR6ycZ+iaB8opoJ/NEgVdfcncGyb/nmqIjUTJ+iW0CqwIELRUjEaL5TuBV0x9cXPL3bCw7Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T12:18:55.438775Z"},"content_sha256":"47aca1d5874c763c376af920e7d63fff2ad19b1bd0a13c43dd8099998192182c","schema_version":"1.0","event_id":"sha256:47aca1d5874c763c376af920e7d63fff2ad19b1bd0a13c43dd8099998192182c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/66ZIWLG2VJVJOWACB74PN6WPR7/bundle.json","state_url":"https://pith.science/pith/66ZIWLG2VJVJOWACB74PN6WPR7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/66ZIWLG2VJVJOWACB74PN6WPR7/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":"2026-08-07T12:18:55Z","links":{"resolver":"https://pith.science/pith/66ZIWLG2VJVJOWACB74PN6WPR7","bundle":"https://pith.science/pith/66ZIWLG2VJVJOWACB74PN6WPR7/bundle.json","state":"https://pith.science/pith/66ZIWLG2VJVJOWACB74PN6WPR7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/66ZIWLG2VJVJOWACB74PN6WPR7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:66ZIWLG2VJVJOWACB74PN6WPR7","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":"492159227e4906c591669d045dcfdf029f191216e95651ef341c4b6df475e75d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-05-23T09:52:49Z","title_canon_sha256":"e05bd41c485267db78814d6c74e16acc9683bb99e66b43e7a784783e483037c8"},"schema_version":"1.0","source":{"id":"2205.11161","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.11161","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"arxiv_version","alias_value":"2205.11161v1","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.11161","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"pith_short_12","alias_value":"66ZIWLG2VJVJ","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"pith_short_16","alias_value":"66ZIWLG2VJVJOWAC","created_at":"2026-07-05T04:25:36Z"},{"alias_kind":"pith_short_8","alias_value":"66ZIWLG2","created_at":"2026-07-05T04:25:36Z"}],"graph_snapshots":[{"event_id":"sha256:47aca1d5874c763c376af920e7d63fff2ad19b1bd0a13c43dd8099998192182c","target":"graph","created_at":"2026-07-05T04:25:36Z","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/2205.11161/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"When two-color femtosecond laser pulses interact with matter, electrons can be emitted through various multiphoton excitation pathways. Quantum interference between these pathways gives rise to a strong oscillation of the photoemitted electron current, experimentally characterized by its visibility. In this work, we demonstrate two-color visibility spectroscopy of multi-photon photoemission from a solid-state nanoemitter. We investigate the quantum pathway interference visibility over an almost octave-spanning wavelength range of the fundamental femtosecond laser pulses and their second-harmon","authors_text":"Ang Li, Peter Hommelhoff, Philip Dienstbier, Yiming Pan","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-05-23T09:52:49Z","title":"Quantum interference visibility spectroscopy in two-color photoemission from tungsten needle tips"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.11161","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":"sha256:423f13b65278920e81dab5d5fe9e923877844abbef5548ce8b73afb933fe7b28","target":"record","created_at":"2026-07-05T04:25:36Z","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":"492159227e4906c591669d045dcfdf029f191216e95651ef341c4b6df475e75d","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-05-23T09:52:49Z","title_canon_sha256":"e05bd41c485267db78814d6c74e16acc9683bb99e66b43e7a784783e483037c8"},"schema_version":"1.0","source":{"id":"2205.11161","kind":"arxiv","version":1}},"canonical_sha256":"f7b28b2cdaaa6a9758020ff8f6facf8fd94e92c6f7c70855c14f92c4a04a3d28","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f7b28b2cdaaa6a9758020ff8f6facf8fd94e92c6f7c70855c14f92c4a04a3d28","first_computed_at":"2026-07-05T04:25:36.225662Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:25:36.225662Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xY/wqeC7Bo5eyphb4Sq1uUiCaQSF/Uudbd/iPiORjWhKKTQ+tj3CIFxjiDfYJg0FDPME9wCj/763JktjfrQVBA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:25:36.226187Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.11161","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:423f13b65278920e81dab5d5fe9e923877844abbef5548ce8b73afb933fe7b28","sha256:47aca1d5874c763c376af920e7d63fff2ad19b1bd0a13c43dd8099998192182c"],"state_sha256":"ebec1e42a623d37103062c259f80325397c89b06252a0f73b754c18ecc4da42e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"i/HlIpS4sIRJHuq1nAHHvilY3FBsNHaM2Hm/DXVPnDAsr4rnOyqhkKYLhQHpqIVB1v4wyhh7TSO3PRvzrnuQCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T12:18:55.446970Z","bundle_sha256":"06dd21451c5c36571c48c04e943ea56e2b10a5ea874830acaa8de82928236712"}}