{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2002:FEZ7AAFTKD5BBT5UP7L7LR3XZV","short_pith_number":"pith:FEZ7AAFT","canonical_record":{"source":{"id":"cond-mat/0208529","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2002-08-27T16:38:20Z","cross_cats_sorted":[],"title_canon_sha256":"0a381121b9937978f320e98ea9442ec3491b9237fb7a956fafebc6e0ea73b04e","abstract_canon_sha256":"f695de6db6f69d9941054ccf30a547f2e93941f78eb9ad8db8ae819ce9b61656"},"schema_version":"1.0"},"canonical_sha256":"2933f000b350fa10cfb47fd7f5c777cd5f8b8f6cb26aa28e17fc75e171b7f75a","source":{"kind":"arxiv","id":"cond-mat/0208529","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0208529","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0208529v1","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0208529","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"pith_short_12","alias_value":"FEZ7AAFTKD5B","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"FEZ7AAFTKD5BBT5U","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"FEZ7AAFT","created_at":"2026-07-04T16:32:50Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2002:FEZ7AAFTKD5BBT5UP7L7LR3XZV","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0208529","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2002-08-27T16:38:20Z","cross_cats_sorted":[],"title_canon_sha256":"0a381121b9937978f320e98ea9442ec3491b9237fb7a956fafebc6e0ea73b04e","abstract_canon_sha256":"f695de6db6f69d9941054ccf30a547f2e93941f78eb9ad8db8ae819ce9b61656"},"schema_version":"1.0"},"canonical_sha256":"2933f000b350fa10cfb47fd7f5c777cd5f8b8f6cb26aa28e17fc75e171b7f75a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:32:50.601471Z","signature_b64":"ivPZdEZt+wpsOZhErhRjMjGvF6Dfi/eRJZVnyMRxLCsO7siP9g+ZwMTMSdCJolSvjsh3hXZ+EqRkzxWVu8pdDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2933f000b350fa10cfb47fd7f5c777cd5f8b8f6cb26aa28e17fc75e171b7f75a","last_reissued_at":"2026-07-04T16:32:50.601103Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:32:50.601103Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0208529","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:32:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eGLRpFBKUH+F0ocd1JInETPF45RexuKmCcQPJyq6dkRddyfMIOLhQtTLQuhUtOCqBsFxkGIGxtGEI6ZxGkzJBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:57:56.067159Z"},"content_sha256":"a28b6b0ce7532953cf523ce2656237dec705644b05abedbf4ee7a1a43c867c1c","schema_version":"1.0","event_id":"sha256:a28b6b0ce7532953cf523ce2656237dec705644b05abedbf4ee7a1a43c867c1c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2002:FEZ7AAFTKD5BBT5UP7L7LR3XZV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Electron correlation effects in electron-hole recombination in organic light-emitting diodes","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"K. Tandon, S. Mazumdar, S. Ramasesha","submitted_at":"2002-08-27T16:38:20Z","abstract_excerpt":"We develop a general theory of electron--hole recombination in organic light emitting diodes that leads to formation of emissive singlet excitons and nonemissive triplet excitons. We briefly review other existing theories and show how our approach is substantively different from these theories. Using an exact time-dependent approach to the interchain/intermolecular charge-transfer within a long-range interacting model we find that, (i) the relative yield of the singlet exciton in polymers is considerably larger than the 25% predicted from statistical considerations, (ii) the singlet exciton yi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0208529","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/cond-mat/0208529/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-04T16:32:50Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nZcB1c9rgRsIBmKR9gOHbrY944EXDxDAPz3BLoeot6HgkrpIA3oZCLdLUtcRTOyjKhASdXHjrlkxhwyZxr7rDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T05:57:56.067560Z"},"content_sha256":"557e1b724d1314abfcf4b3473f4002dec36e63e48103dc61ac8223f142741850","schema_version":"1.0","event_id":"sha256:557e1b724d1314abfcf4b3473f4002dec36e63e48103dc61ac8223f142741850"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FEZ7AAFTKD5BBT5UP7L7LR3XZV/bundle.json","state_url":"https://pith.science/pith/FEZ7AAFTKD5BBT5UP7L7LR3XZV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FEZ7AAFTKD5BBT5UP7L7LR3XZV/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T05:57:56Z","links":{"resolver":"https://pith.science/pith/FEZ7AAFTKD5BBT5UP7L7LR3XZV","bundle":"https://pith.science/pith/FEZ7AAFTKD5BBT5UP7L7LR3XZV/bundle.json","state":"https://pith.science/pith/FEZ7AAFTKD5BBT5UP7L7LR3XZV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FEZ7AAFTKD5BBT5UP7L7LR3XZV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2002:FEZ7AAFTKD5BBT5UP7L7LR3XZV","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":"f695de6db6f69d9941054ccf30a547f2e93941f78eb9ad8db8ae819ce9b61656","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2002-08-27T16:38:20Z","title_canon_sha256":"0a381121b9937978f320e98ea9442ec3491b9237fb7a956fafebc6e0ea73b04e"},"schema_version":"1.0","source":{"id":"cond-mat/0208529","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0208529","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0208529v1","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0208529","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"pith_short_12","alias_value":"FEZ7AAFTKD5B","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"FEZ7AAFTKD5BBT5U","created_at":"2026-07-04T16:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"FEZ7AAFT","created_at":"2026-07-04T16:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:557e1b724d1314abfcf4b3473f4002dec36e63e48103dc61ac8223f142741850","target":"graph","created_at":"2026-07-04T16:32:50Z","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/0208529/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We develop a general theory of electron--hole recombination in organic light emitting diodes that leads to formation of emissive singlet excitons and nonemissive triplet excitons. We briefly review other existing theories and show how our approach is substantively different from these theories. Using an exact time-dependent approach to the interchain/intermolecular charge-transfer within a long-range interacting model we find that, (i) the relative yield of the singlet exciton in polymers is considerably larger than the 25% predicted from statistical considerations, (ii) the singlet exciton yi","authors_text":"K. Tandon, S. Mazumdar, S. Ramasesha","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2002-08-27T16:38:20Z","title":"Electron correlation effects in electron-hole recombination in organic light-emitting diodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0208529","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:a28b6b0ce7532953cf523ce2656237dec705644b05abedbf4ee7a1a43c867c1c","target":"record","created_at":"2026-07-04T16:32:50Z","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":"f695de6db6f69d9941054ccf30a547f2e93941f78eb9ad8db8ae819ce9b61656","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2002-08-27T16:38:20Z","title_canon_sha256":"0a381121b9937978f320e98ea9442ec3491b9237fb7a956fafebc6e0ea73b04e"},"schema_version":"1.0","source":{"id":"cond-mat/0208529","kind":"arxiv","version":1}},"canonical_sha256":"2933f000b350fa10cfb47fd7f5c777cd5f8b8f6cb26aa28e17fc75e171b7f75a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2933f000b350fa10cfb47fd7f5c777cd5f8b8f6cb26aa28e17fc75e171b7f75a","first_computed_at":"2026-07-04T16:32:50.601103Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:32:50.601103Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ivPZdEZt+wpsOZhErhRjMjGvF6Dfi/eRJZVnyMRxLCsO7siP9g+ZwMTMSdCJolSvjsh3hXZ+EqRkzxWVu8pdDw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:32:50.601471Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0208529","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a28b6b0ce7532953cf523ce2656237dec705644b05abedbf4ee7a1a43c867c1c","sha256:557e1b724d1314abfcf4b3473f4002dec36e63e48103dc61ac8223f142741850"],"state_sha256":"f6d7e6767f6c91a70f566959f3960718ba5dce03f29a0185b82ccd9a32a7db35"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mepyXSpfcAdlwyjE2Pqc18z5fu2OwMBGRNPhWHZ4liNE836NSmQnNZilePikVs6n4Kpk1P/qA4X/htHxSG/YAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T05:57:56.069688Z","bundle_sha256":"36363e1604f1ad4ef9c23648a00e4d3f762abb304db11390edf3f76b589b5d45"}}