{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2024:URHZOKGY32NAJ2KZKID2ZW37HJ","short_pith_number":"pith:URHZOKGY","schema_version":"1.0","canonical_sha256":"a44f9728d8de9a04e9595207acdb7f3a71f7c7ce160fb2c42c3159135af0fe53","source":{"kind":"arxiv","id":"2409.01950","version":2},"attestation_state":"computed","paper":{"title":"A tutorial on THz pulse analysis: accurate retrieval of pulse arrival times, spectral energy density and absolute spectral phase","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Jack Woolley, James Lloyd-Hughes, Justas Deveikis, Nishtha Chopra, Raj Pandya","submitted_at":"2024-09-03T14:50:26Z","abstract_excerpt":"Electro-optic sampling allows the electric field of THz, mid-infrared and visible light pulses to be measured directly as a function of time, with data analysis often performed in the frequency domain after fast Fourier transform. Here we review aspects of Fourier theory relevant to the frequency-domain analysis of light pulses recorded in the time-domain. We describe a ``best practise'' approach to using the discrete Fourier transform that ensures consistency with analytical results from the continuous Fourier transform. We summarise a phenomenological time-domain model of THz pulses, based o"},"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":"2409.01950","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2024-09-03T14:50:26Z","cross_cats_sorted":[],"title_canon_sha256":"f7ad65e9c1cd577af838f9551d42e95d115353a4e6239028a506573850f886b1","abstract_canon_sha256":"76ff5e3c602f3945f8d57e703ac79339492ed75d973c858aca4264891b4d1595"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:59:59.786373Z","signature_b64":"85u2lsLNwj1LGQxvWPIIbaa5pHlSxA9EHY+rLK3qYOGdN3ZRubj+mmOmZXNmqcD6hcbuioXR8MJ1ODy+SDDzDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a44f9728d8de9a04e9595207acdb7f3a71f7c7ce160fb2c42c3159135af0fe53","last_reissued_at":"2026-07-05T10:59:59.785908Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:59:59.785908Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A tutorial on THz pulse analysis: accurate retrieval of pulse arrival times, spectral energy density and absolute spectral phase","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Jack Woolley, James Lloyd-Hughes, Justas Deveikis, Nishtha Chopra, Raj Pandya","submitted_at":"2024-09-03T14:50:26Z","abstract_excerpt":"Electro-optic sampling allows the electric field of THz, mid-infrared and visible light pulses to be measured directly as a function of time, with data analysis often performed in the frequency domain after fast Fourier transform. Here we review aspects of Fourier theory relevant to the frequency-domain analysis of light pulses recorded in the time-domain. We describe a ``best practise'' approach to using the discrete Fourier transform that ensures consistency with analytical results from the continuous Fourier transform. We summarise a phenomenological time-domain model of THz pulses, based o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.01950","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2409.01950/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"2409.01950","created_at":"2026-07-05T10:59:59.785975+00:00"},{"alias_kind":"arxiv_version","alias_value":"2409.01950v2","created_at":"2026-07-05T10:59:59.785975+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.01950","created_at":"2026-07-05T10:59:59.785975+00:00"},{"alias_kind":"pith_short_12","alias_value":"URHZOKGY32NA","created_at":"2026-07-05T10:59:59.785975+00:00"},{"alias_kind":"pith_short_16","alias_value":"URHZOKGY32NAJ2KZ","created_at":"2026-07-05T10:59:59.785975+00:00"},{"alias_kind":"pith_short_8","alias_value":"URHZOKGY","created_at":"2026-07-05T10:59:59.785975+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/URHZOKGY32NAJ2KZKID2ZW37HJ","json":"https://pith.science/pith/URHZOKGY32NAJ2KZKID2ZW37HJ.json","graph_json":"https://pith.science/api/pith-number/URHZOKGY32NAJ2KZKID2ZW37HJ/graph.json","events_json":"https://pith.science/api/pith-number/URHZOKGY32NAJ2KZKID2ZW37HJ/events.json","paper":"https://pith.science/paper/URHZOKGY"},"agent_actions":{"view_html":"https://pith.science/pith/URHZOKGY32NAJ2KZKID2ZW37HJ","download_json":"https://pith.science/pith/URHZOKGY32NAJ2KZKID2ZW37HJ.json","view_paper":"https://pith.science/paper/URHZOKGY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2409.01950&json=true","fetch_graph":"https://pith.science/api/pith-number/URHZOKGY32NAJ2KZKID2ZW37HJ/graph.json","fetch_events":"https://pith.science/api/pith-number/URHZOKGY32NAJ2KZKID2ZW37HJ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/URHZOKGY32NAJ2KZKID2ZW37HJ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/URHZOKGY32NAJ2KZKID2ZW37HJ/action/storage_attestation","attest_author":"https://pith.science/pith/URHZOKGY32NAJ2KZKID2ZW37HJ/action/author_attestation","sign_citation":"https://pith.science/pith/URHZOKGY32NAJ2KZKID2ZW37HJ/action/citation_signature","submit_replication":"https://pith.science/pith/URHZOKGY32NAJ2KZKID2ZW37HJ/action/replication_record"}},"created_at":"2026-07-05T10:59:59.785975+00:00","updated_at":"2026-07-05T10:59:59.785975+00:00"}