{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2000:XJ4AE3U3RZFDYKZWATXXYYYKNI","short_pith_number":"pith:XJ4AE3U3","schema_version":"1.0","canonical_sha256":"ba78026e9b8e4a3c2b3604ef7c630a6a182c0404f9e4fcf27bb062ac0f967be0","source":{"kind":"arxiv","id":"physics/0004045","version":2},"attestation_state":"computed","paper":{"title":"High-harmonic generation from a confined atom","license":"","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Carla Figueira de Morisson Faria, Jan-Michael Rost","submitted_at":"2000-04-19T17:47:42Z","abstract_excerpt":"The order of high harmonics emitted by an atom in an intense laser field is limited by the so-called cutoff frequency. Solving the time-dependent Schr\\\"odinger equation, we show that this frequency can be increased considerably by a parabolic confining potential, if the confinement parameters are suitably chosen.\n Furthermore, due to confinement, the radiation intensity remains high throughout the extended emission range. All features observed can be explained with classical arguments."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"physics/0004045","kind":"arxiv","version":2},"metadata":{"license":"","primary_cat":"physics.atom-ph","submitted_at":"2000-04-19T17:47:42Z","cross_cats_sorted":[],"title_canon_sha256":"253c23ab943144ae928e7feb715ab75a39c049443485428be9d07a881baecf37","abstract_canon_sha256":"b977e5a9a9892f6c7b7a13f668b5ad3de3013d270fbbb14438c93c0a96ce1ba0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:05:15.398692Z","signature_b64":"OCcJhmUi9OPVJ8C343OpGtHLQFQ2/jsVUPqupaZH8KHI4lWJzEnhbvVknN0Bst3mF5cfS85gOHOSoyy7K+YuCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ba78026e9b8e4a3c2b3604ef7c630a6a182c0404f9e4fcf27bb062ac0f967be0","last_reissued_at":"2026-05-18T01:05:15.398047Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:05:15.398047Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"High-harmonic generation from a confined atom","license":"","headline":"","cross_cats":[],"primary_cat":"physics.atom-ph","authors_text":"Carla Figueira de Morisson Faria, Jan-Michael Rost","submitted_at":"2000-04-19T17:47:42Z","abstract_excerpt":"The order of high harmonics emitted by an atom in an intense laser field is limited by the so-called cutoff frequency. Solving the time-dependent Schr\\\"odinger equation, we show that this frequency can be increased considerably by a parabolic confining potential, if the confinement parameters are suitably chosen.\n Furthermore, due to confinement, the radiation intensity remains high throughout the extended emission range. All features observed can be explained with classical arguments."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"physics/0004045","kind":"arxiv","version":2},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"physics/0004045","created_at":"2026-05-18T01:05:15.398141+00:00"},{"alias_kind":"arxiv_version","alias_value":"physics/0004045v2","created_at":"2026-05-18T01:05:15.398141+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.physics/0004045","created_at":"2026-05-18T01:05:15.398141+00:00"},{"alias_kind":"pith_short_12","alias_value":"XJ4AE3U3RZFD","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_16","alias_value":"XJ4AE3U3RZFDYKZW","created_at":"2026-05-18T12:25:50.254431+00:00"},{"alias_kind":"pith_short_8","alias_value":"XJ4AE3U3","created_at":"2026-05-18T12:25:50.254431+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI","json":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI.json","graph_json":"https://pith.science/api/pith-number/XJ4AE3U3RZFDYKZWATXXYYYKNI/graph.json","events_json":"https://pith.science/api/pith-number/XJ4AE3U3RZFDYKZWATXXYYYKNI/events.json","paper":"https://pith.science/paper/XJ4AE3U3"},"agent_actions":{"view_html":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI","download_json":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI.json","view_paper":"https://pith.science/paper/XJ4AE3U3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=physics/0004045&json=true","fetch_graph":"https://pith.science/api/pith-number/XJ4AE3U3RZFDYKZWATXXYYYKNI/graph.json","fetch_events":"https://pith.science/api/pith-number/XJ4AE3U3RZFDYKZWATXXYYYKNI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI/action/storage_attestation","attest_author":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI/action/author_attestation","sign_citation":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI/action/citation_signature","submit_replication":"https://pith.science/pith/XJ4AE3U3RZFDYKZWATXXYYYKNI/action/replication_record"}},"created_at":"2026-05-18T01:05:15.398141+00:00","updated_at":"2026-05-18T01:05:15.398141+00:00"}