{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2026:PH3MMNE46GCHJFUWYFL7H4ZX5Y","short_pith_number":"pith:PH3MMNE4","schema_version":"1.0","canonical_sha256":"79f6c6349cf184749696c157f3f337ee37f684fc547e0bf2b5374e76804641f2","source":{"kind":"arxiv","id":"2602.21787","version":2},"attestation_state":"computed","paper":{"title":"Sub-residue sharpness of protein helix-coil transitions reveals a spatial-spectral uncertainty limit","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["math-ph","math.MP","nlin.PS","physics.bio-ph"],"primary_cat":"q-bio.BM","authors_text":"Yiquan Wang","submitted_at":"2026-02-25T11:08:58Z","abstract_excerpt":"The boundaries of cooperative helix--coil transitions directly affect protein allostery and conformational dynamics, yet the physical origin of the persistent one-to-two-residue assignment ambiguity at these structural interfaces remains unresolved. We apply the discrete Hasimoto map to translate three-dimensional protein backbone geometry into a one-dimensional discrete nonlinear Schr\\\"{o}dinger effective potential and analyze its spatial-frequency fluctuations. Helical segments display near-integrable, low-entropy soliton-like states, while coil regions exhibit broadband conformational noise"},"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":"2602.21787","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"q-bio.BM","submitted_at":"2026-02-25T11:08:58Z","cross_cats_sorted":["math-ph","math.MP","nlin.PS","physics.bio-ph"],"title_canon_sha256":"d664b34eb4b9477672dca4857db30e909eefc874917815e395fd8854dbebebab","abstract_canon_sha256":"ecae8e6a420711d3a5ef754f96de06c6da78f564c2e3823041b91413b35101d7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-20T00:04:26.655395Z","signature_b64":"uqjReRfPaZO7vI8hL2JQJzi3D/iu36miOeyZwD8tiTia8Bb4Bt0/dbrGL90zFSgbdXOaXTDIv2zDLfAncblGBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"79f6c6349cf184749696c157f3f337ee37f684fc547e0bf2b5374e76804641f2","last_reissued_at":"2026-05-20T00:04:26.654289Z","signature_status":"signed_v1","first_computed_at":"2026-05-20T00:04:26.654289Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Sub-residue sharpness of protein helix-coil transitions reveals a spatial-spectral uncertainty limit","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["math-ph","math.MP","nlin.PS","physics.bio-ph"],"primary_cat":"q-bio.BM","authors_text":"Yiquan Wang","submitted_at":"2026-02-25T11:08:58Z","abstract_excerpt":"The boundaries of cooperative helix--coil transitions directly affect protein allostery and conformational dynamics, yet the physical origin of the persistent one-to-two-residue assignment ambiguity at these structural interfaces remains unresolved. We apply the discrete Hasimoto map to translate three-dimensional protein backbone geometry into a one-dimensional discrete nonlinear Schr\\\"{o}dinger effective potential and analyze its spatial-frequency fluctuations. Helical segments display near-integrable, low-entropy soliton-like states, while coil regions exhibit broadband conformational noise"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.21787","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/2602.21787/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":"2602.21787","created_at":"2026-05-20T00:04:26.654459+00:00"},{"alias_kind":"arxiv_version","alias_value":"2602.21787v2","created_at":"2026-05-20T00:04:26.654459+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2602.21787","created_at":"2026-05-20T00:04:26.654459+00:00"},{"alias_kind":"pith_short_12","alias_value":"PH3MMNE46GCH","created_at":"2026-05-20T00:04:26.654459+00:00"},{"alias_kind":"pith_short_16","alias_value":"PH3MMNE46GCHJFUW","created_at":"2026-05-20T00:04:26.654459+00:00"},{"alias_kind":"pith_short_8","alias_value":"PH3MMNE4","created_at":"2026-05-20T00:04:26.654459+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/PH3MMNE46GCHJFUWYFL7H4ZX5Y","json":"https://pith.science/pith/PH3MMNE46GCHJFUWYFL7H4ZX5Y.json","graph_json":"https://pith.science/api/pith-number/PH3MMNE46GCHJFUWYFL7H4ZX5Y/graph.json","events_json":"https://pith.science/api/pith-number/PH3MMNE46GCHJFUWYFL7H4ZX5Y/events.json","paper":"https://pith.science/paper/PH3MMNE4"},"agent_actions":{"view_html":"https://pith.science/pith/PH3MMNE46GCHJFUWYFL7H4ZX5Y","download_json":"https://pith.science/pith/PH3MMNE46GCHJFUWYFL7H4ZX5Y.json","view_paper":"https://pith.science/paper/PH3MMNE4","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2602.21787&json=true","fetch_graph":"https://pith.science/api/pith-number/PH3MMNE46GCHJFUWYFL7H4ZX5Y/graph.json","fetch_events":"https://pith.science/api/pith-number/PH3MMNE46GCHJFUWYFL7H4ZX5Y/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PH3MMNE46GCHJFUWYFL7H4ZX5Y/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PH3MMNE46GCHJFUWYFL7H4ZX5Y/action/storage_attestation","attest_author":"https://pith.science/pith/PH3MMNE46GCHJFUWYFL7H4ZX5Y/action/author_attestation","sign_citation":"https://pith.science/pith/PH3MMNE46GCHJFUWYFL7H4ZX5Y/action/citation_signature","submit_replication":"https://pith.science/pith/PH3MMNE46GCHJFUWYFL7H4ZX5Y/action/replication_record"}},"created_at":"2026-05-20T00:04:26.654459+00:00","updated_at":"2026-05-20T00:04:26.654459+00:00"}