{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:PI5FWE6UUM2K45XLN5EDZZ3STP","short_pith_number":"pith:PI5FWE6U","schema_version":"1.0","canonical_sha256":"7a3a5b13d4a334ae76eb6f483ce7729bc4af5552fe22066c5a595dbcd548f6b8","source":{"kind":"arxiv","id":"2606.04124","version":1},"attestation_state":"computed","paper":{"title":"Rotational Modulation and Long-Term Variability of Magnetic Fields in T-Tauri Stars with IGRINS","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Facundo P\\'erez Paolino, Jeff Bary, Lynne Hillenbrand","submitted_at":"2026-06-02T18:33:55Z","abstract_excerpt":"Magnetic fields play a central role in the evolution of pre-main-sequence (PMS) stars, yet direct observational constraints on their variability over rotational and multi-year timescales remain scarce. We investigate the temporal behavior of surface magnetic fields in a sample of nine PMS stars observed with the Immersion GRating INfrared Spectrometer (IGRINS), using 489 high-resolution near-infrared spectra drawn from the Raw and Reduced IGRINS Spectral Archive. We fit each epoch with magnetic synthetic spectra to derive the mean surface magnetic field strength $\\langle Bf \\rangle$ and detect"},"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":"2606.04124","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.SR","submitted_at":"2026-06-02T18:33:55Z","cross_cats_sorted":[],"title_canon_sha256":"67c89ab1704a8475fdce0f148527cc8bc6cc701588f25116763af16dbdb99cce","abstract_canon_sha256":"4ce00d48b5f62b435888d85f8549139940dc62e2e9f2ea9dfab49041bf572162"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-04T00:06:51.266030Z","signature_b64":"Vx/hFvEYf9H67CyN4l8MGz7HV5XW3ReKroo37ERL1PDyc3K3PQRKyzZgwjjyEQ9bHowoPYUlaU7hG+xS3UYrDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7a3a5b13d4a334ae76eb6f483ce7729bc4af5552fe22066c5a595dbcd548f6b8","last_reissued_at":"2026-06-04T00:06:51.265546Z","signature_status":"signed_v1","first_computed_at":"2026-06-04T00:06:51.265546Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Rotational Modulation and Long-Term Variability of Magnetic Fields in T-Tauri Stars with IGRINS","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Facundo P\\'erez Paolino, Jeff Bary, Lynne Hillenbrand","submitted_at":"2026-06-02T18:33:55Z","abstract_excerpt":"Magnetic fields play a central role in the evolution of pre-main-sequence (PMS) stars, yet direct observational constraints on their variability over rotational and multi-year timescales remain scarce. We investigate the temporal behavior of surface magnetic fields in a sample of nine PMS stars observed with the Immersion GRating INfrared Spectrometer (IGRINS), using 489 high-resolution near-infrared spectra drawn from the Raw and Reduced IGRINS Spectral Archive. We fit each epoch with magnetic synthetic spectra to derive the mean surface magnetic field strength $\\langle Bf \\rangle$ and detect"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.04124","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/2606.04124/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":"2606.04124","created_at":"2026-06-04T00:06:51.265617+00:00"},{"alias_kind":"arxiv_version","alias_value":"2606.04124v1","created_at":"2026-06-04T00:06:51.265617+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.04124","created_at":"2026-06-04T00:06:51.265617+00:00"},{"alias_kind":"pith_short_12","alias_value":"PI5FWE6UUM2K","created_at":"2026-06-04T00:06:51.265617+00:00"},{"alias_kind":"pith_short_16","alias_value":"PI5FWE6UUM2K45XL","created_at":"2026-06-04T00:06:51.265617+00:00"},{"alias_kind":"pith_short_8","alias_value":"PI5FWE6U","created_at":"2026-06-04T00:06:51.265617+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/PI5FWE6UUM2K45XLN5EDZZ3STP","json":"https://pith.science/pith/PI5FWE6UUM2K45XLN5EDZZ3STP.json","graph_json":"https://pith.science/api/pith-number/PI5FWE6UUM2K45XLN5EDZZ3STP/graph.json","events_json":"https://pith.science/api/pith-number/PI5FWE6UUM2K45XLN5EDZZ3STP/events.json","paper":"https://pith.science/paper/PI5FWE6U"},"agent_actions":{"view_html":"https://pith.science/pith/PI5FWE6UUM2K45XLN5EDZZ3STP","download_json":"https://pith.science/pith/PI5FWE6UUM2K45XLN5EDZZ3STP.json","view_paper":"https://pith.science/paper/PI5FWE6U","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2606.04124&json=true","fetch_graph":"https://pith.science/api/pith-number/PI5FWE6UUM2K45XLN5EDZZ3STP/graph.json","fetch_events":"https://pith.science/api/pith-number/PI5FWE6UUM2K45XLN5EDZZ3STP/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PI5FWE6UUM2K45XLN5EDZZ3STP/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PI5FWE6UUM2K45XLN5EDZZ3STP/action/storage_attestation","attest_author":"https://pith.science/pith/PI5FWE6UUM2K45XLN5EDZZ3STP/action/author_attestation","sign_citation":"https://pith.science/pith/PI5FWE6UUM2K45XLN5EDZZ3STP/action/citation_signature","submit_replication":"https://pith.science/pith/PI5FWE6UUM2K45XLN5EDZZ3STP/action/replication_record"}},"created_at":"2026-06-04T00:06:51.265617+00:00","updated_at":"2026-06-04T00:06:51.265617+00:00"}