{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:S4T5QCFGA4S65URNIT7PRWV3EG","short_pith_number":"pith:S4T5QCFG","schema_version":"1.0","canonical_sha256":"9727d808a60725eed22d44fef8dabb21926ccf60a42dde99934351c33273677e","source":{"kind":"arxiv","id":"1808.03262","version":1},"attestation_state":"computed","paper":{"title":"Proton-transfer induced fluorescence in self assembled short peptides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Amir Natan, Eldad Yahel, Gil Rosenman, Nadezda Lapshina, Natalia Kuritz, Sijo K. Joseph","submitted_at":"2018-08-09T17:59:53Z","abstract_excerpt":"We employ Molecular Dynamics (MD) and Time-Dependent Density Functional Theory (TDDFT) to explore the fluorescence of Hydrogen-bonded dimer and trimer structures of Cyclic FF (Phe- Phe) molecules. We show that in some of these configurations a photon can induce either an \\textit{intra}-molecular proton transfer, or an \\textit{inter}-molecular proton transfer that can occur in the excited S1 and S2 states. This proton transfer, taking place within the Hydrogen bond, leads to a significant red-shift that can explain the experimentally observed visible fluorescence in biological and bioinspired p"},"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":"1808.03262","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-08-09T17:59:53Z","cross_cats_sorted":[],"title_canon_sha256":"3a16f9c898f2a32c7f4840df1a3ad27ce13b0ddeda70fdf0acc3ae7f71c32b5e","abstract_canon_sha256":"1bebcff09f18488dd55b30fff249d5f5d27173fa247319360e40d369f7821551"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:43:04.751214Z","signature_b64":"EBQAEIXwG9bSA8fhkMVK+Xu8/0ZecOB3NtNtO8EZcfCyQgqu7DxXKVNZryLwzMhnqeu/KRcW9LOq4e9PyoibBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9727d808a60725eed22d44fef8dabb21926ccf60a42dde99934351c33273677e","last_reissued_at":"2026-05-17T23:43:04.750424Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:43:04.750424Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Proton-transfer induced fluorescence in self assembled short peptides","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Amir Natan, Eldad Yahel, Gil Rosenman, Nadezda Lapshina, Natalia Kuritz, Sijo K. Joseph","submitted_at":"2018-08-09T17:59:53Z","abstract_excerpt":"We employ Molecular Dynamics (MD) and Time-Dependent Density Functional Theory (TDDFT) to explore the fluorescence of Hydrogen-bonded dimer and trimer structures of Cyclic FF (Phe- Phe) molecules. We show that in some of these configurations a photon can induce either an \\textit{intra}-molecular proton transfer, or an \\textit{inter}-molecular proton transfer that can occur in the excited S1 and S2 states. This proton transfer, taking place within the Hydrogen bond, leads to a significant red-shift that can explain the experimentally observed visible fluorescence in biological and bioinspired p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03262","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":""},"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":"1808.03262","created_at":"2026-05-17T23:43:04.750533+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.03262v1","created_at":"2026-05-17T23:43:04.750533+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03262","created_at":"2026-05-17T23:43:04.750533+00:00"},{"alias_kind":"pith_short_12","alias_value":"S4T5QCFGA4S6","created_at":"2026-05-18T12:32:50.500415+00:00"},{"alias_kind":"pith_short_16","alias_value":"S4T5QCFGA4S65URN","created_at":"2026-05-18T12:32:50.500415+00:00"},{"alias_kind":"pith_short_8","alias_value":"S4T5QCFG","created_at":"2026-05-18T12:32:50.500415+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/S4T5QCFGA4S65URNIT7PRWV3EG","json":"https://pith.science/pith/S4T5QCFGA4S65URNIT7PRWV3EG.json","graph_json":"https://pith.science/api/pith-number/S4T5QCFGA4S65URNIT7PRWV3EG/graph.json","events_json":"https://pith.science/api/pith-number/S4T5QCFGA4S65URNIT7PRWV3EG/events.json","paper":"https://pith.science/paper/S4T5QCFG"},"agent_actions":{"view_html":"https://pith.science/pith/S4T5QCFGA4S65URNIT7PRWV3EG","download_json":"https://pith.science/pith/S4T5QCFGA4S65URNIT7PRWV3EG.json","view_paper":"https://pith.science/paper/S4T5QCFG","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.03262&json=true","fetch_graph":"https://pith.science/api/pith-number/S4T5QCFGA4S65URNIT7PRWV3EG/graph.json","fetch_events":"https://pith.science/api/pith-number/S4T5QCFGA4S65URNIT7PRWV3EG/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/S4T5QCFGA4S65URNIT7PRWV3EG/action/timestamp_anchor","attest_storage":"https://pith.science/pith/S4T5QCFGA4S65URNIT7PRWV3EG/action/storage_attestation","attest_author":"https://pith.science/pith/S4T5QCFGA4S65URNIT7PRWV3EG/action/author_attestation","sign_citation":"https://pith.science/pith/S4T5QCFGA4S65URNIT7PRWV3EG/action/citation_signature","submit_replication":"https://pith.science/pith/S4T5QCFGA4S65URNIT7PRWV3EG/action/replication_record"}},"created_at":"2026-05-17T23:43:04.750533+00:00","updated_at":"2026-05-17T23:43:04.750533+00:00"}