{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:CPJ3IQNKBTWFW2FNOYQJL2EDBX","short_pith_number":"pith:CPJ3IQNK","schema_version":"1.0","canonical_sha256":"13d3b441aa0cec5b68ad762095e8830dd41da1b00c085318a5b02becd7e23842","source":{"kind":"arxiv","id":"2606.05673","version":1},"attestation_state":"computed","paper":{"title":"Broadband Chromatic Dispersion of Thermo-refractive Coefficients and its Impact in Silicon Nitride Nonlinear Photonics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Gregory Moille, Kartik Srinivasan, Shao-Chien Ou","submitted_at":"2026-06-04T03:54:18Z","abstract_excerpt":"The thermo-refractive effect is a cornerstone of frequency and phase tuning in photonic integrated circuits. In particular, it enables control of phase-matching for integrated nonlinear processes. Chromatic dispersion of the group and effective refractive indices and modal confinement are standard considerations in design, but material thermo-refractive coefficients (TRCs) are typically taken to be fixed for the guiding and cladding materials. Here, we demonstrate that the assumption of non-dispersive TRCs across an octave of bandwidth between the telecom and visible results in a significant d"},"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":"2606.05673","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2026-06-04T03:54:18Z","cross_cats_sorted":[],"title_canon_sha256":"6bb2a266d250c3e292db6b64fe81f794aefd43cb516ffec3de77507a89836a13","abstract_canon_sha256":"f031856a0fb823d473a3536239434d6177b86ba437f8249eb86dab81c8db2635"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-05T01:14:58.878791Z","signature_b64":"fIzdRb+Smr5/e/a01ZFsBKGEJSljTGH1uczkgcQhbjSXmvvuGVblA7p/M/YT1G3mpq915SGB8V71KstXAQZCAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"13d3b441aa0cec5b68ad762095e8830dd41da1b00c085318a5b02becd7e23842","last_reissued_at":"2026-06-05T01:14:58.878374Z","signature_status":"signed_v1","first_computed_at":"2026-06-05T01:14:58.878374Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Broadband Chromatic Dispersion of Thermo-refractive Coefficients and its Impact in Silicon Nitride Nonlinear Photonics","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Gregory Moille, Kartik Srinivasan, Shao-Chien Ou","submitted_at":"2026-06-04T03:54:18Z","abstract_excerpt":"The thermo-refractive effect is a cornerstone of frequency and phase tuning in photonic integrated circuits. In particular, it enables control of phase-matching for integrated nonlinear processes. Chromatic dispersion of the group and effective refractive indices and modal confinement are standard considerations in design, but material thermo-refractive coefficients (TRCs) are typically taken to be fixed for the guiding and cladding materials. Here, we demonstrate that the assumption of non-dispersive TRCs across an octave of bandwidth between the telecom and visible results in a significant d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.05673","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/2606.05673/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":"2606.05673","created_at":"2026-06-05T01:14:58.878433+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.05673v1","created_at":"2026-06-05T01:14:58.878433+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.05673","created_at":"2026-06-05T01:14:58.878433+00:00"},{"alias_kind":"pith_short_12","alias_value":"CPJ3IQNKBTWF","created_at":"2026-06-05T01:14:58.878433+00:00"},{"alias_kind":"pith_short_16","alias_value":"CPJ3IQNKBTWFW2FN","created_at":"2026-06-05T01:14:58.878433+00:00"},{"alias_kind":"pith_short_8","alias_value":"CPJ3IQNK","created_at":"2026-06-05T01:14:58.878433+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/CPJ3IQNKBTWFW2FNOYQJL2EDBX","json":"https://pith.science/pith/CPJ3IQNKBTWFW2FNOYQJL2EDBX.json","graph_json":"https://pith.science/api/pith-number/CPJ3IQNKBTWFW2FNOYQJL2EDBX/graph.json","events_json":"https://pith.science/api/pith-number/CPJ3IQNKBTWFW2FNOYQJL2EDBX/events.json","paper":"https://pith.science/paper/CPJ3IQNK"},"agent_actions":{"view_html":"https://pith.science/pith/CPJ3IQNKBTWFW2FNOYQJL2EDBX","download_json":"https://pith.science/pith/CPJ3IQNKBTWFW2FNOYQJL2EDBX.json","view_paper":"https://pith.science/paper/CPJ3IQNK","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.05673&json=true","fetch_graph":"https://pith.science/api/pith-number/CPJ3IQNKBTWFW2FNOYQJL2EDBX/graph.json","fetch_events":"https://pith.science/api/pith-number/CPJ3IQNKBTWFW2FNOYQJL2EDBX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/CPJ3IQNKBTWFW2FNOYQJL2EDBX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/CPJ3IQNKBTWFW2FNOYQJL2EDBX/action/storage_attestation","attest_author":"https://pith.science/pith/CPJ3IQNKBTWFW2FNOYQJL2EDBX/action/author_attestation","sign_citation":"https://pith.science/pith/CPJ3IQNKBTWFW2FNOYQJL2EDBX/action/citation_signature","submit_replication":"https://pith.science/pith/CPJ3IQNKBTWFW2FNOYQJL2EDBX/action/replication_record"}},"created_at":"2026-06-05T01:14:58.878433+00:00","updated_at":"2026-06-05T01:14:58.878433+00:00"}