{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2003:OW42J7RHD3TIOXLA7SHI5QT2K3","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4b8816312b0002851f681eb1b31bef7fee6618a8a72dcae9dc063bb5729bc922","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.soft","submitted_at":"2003-12-11T07:34:58Z","title_canon_sha256":"e9626bf42b4a64502c2bb613b8e5342a3bdf1cfbb6478503f3024301b2f78b26"},"schema_version":"1.0","source":{"id":"cond-mat/0312277","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0312277","created_at":"2026-07-04T14:20:44Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0312277v1","created_at":"2026-07-04T14:20:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0312277","created_at":"2026-07-04T14:20:44Z"},{"alias_kind":"pith_short_12","alias_value":"OW42J7RHD3TI","created_at":"2026-07-04T14:20:44Z"},{"alias_kind":"pith_short_16","alias_value":"OW42J7RHD3TIOXLA","created_at":"2026-07-04T14:20:44Z"},{"alias_kind":"pith_short_8","alias_value":"OW42J7RH","created_at":"2026-07-04T14:20:44Z"}],"graph_snapshots":[{"event_id":"sha256:30be13ed41ce4e02a334ee1b5f5d253ec05cbd761326165fcdcefd02a6a6daf1","target":"graph","created_at":"2026-07-04T14:20:44Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0312277/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We report absolute values for the radiative relaxation quantum yield of synthetic eumelanin as a function of excitation energy. These values were determined by correcting for pump beam attenuation and emission re-absorption in both eumelanin samples and fluorescein standards over a large range of concentrations. Our results confirm that eumelanins are capable of dissipating >99.9% of absorbed UV and visible radiation through non-radiative means. Furthermore, we have found that the radiative quantum yield of synthetic eumelanin is excitation energy dependent. This observation is supported by co","authors_text":"Jenny Riesz, Paul Meredith","cross_cats":["cond-mat.mtrl-sci"],"headline":"","license":"","primary_cat":"cond-mat.soft","submitted_at":"2003-12-11T07:34:58Z","title":"Radiative Relaxation Quantum Yields for Synthetic Eumelanin"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0312277","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:46cd584871d2c4b5b230a017df062f15849801c7c7833033f6c8173652f61695","target":"record","created_at":"2026-07-04T14:20:44Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4b8816312b0002851f681eb1b31bef7fee6618a8a72dcae9dc063bb5729bc922","cross_cats_sorted":["cond-mat.mtrl-sci"],"license":"","primary_cat":"cond-mat.soft","submitted_at":"2003-12-11T07:34:58Z","title_canon_sha256":"e9626bf42b4a64502c2bb613b8e5342a3bdf1cfbb6478503f3024301b2f78b26"},"schema_version":"1.0","source":{"id":"cond-mat/0312277","kind":"arxiv","version":1}},"canonical_sha256":"75b9a4fe271ee6875d60fc8e8ec27a56c61328f9f13eb19a9d20052b8fc7d24b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"75b9a4fe271ee6875d60fc8e8ec27a56c61328f9f13eb19a9d20052b8fc7d24b","first_computed_at":"2026-07-04T14:20:44.942935Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T14:20:44.942935Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"biWwbvvq/m/0nEHDPg3PtrttHjEYrnSB51rL9Uuoe6P7M3jjk2QFtuGUhSUFtN2qsUSSEpaxshoYkX896b1SAQ==","signature_status":"signed_v1","signed_at":"2026-07-04T14:20:44.943352Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0312277","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:46cd584871d2c4b5b230a017df062f15849801c7c7833033f6c8173652f61695","sha256:30be13ed41ce4e02a334ee1b5f5d253ec05cbd761326165fcdcefd02a6a6daf1"],"state_sha256":"3a2dcccd3e6e96866689cbf2ee0aec6623056186f8d52d0bb4b315e664244cdb"}