{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:TPGVXDJA2JMJPINSX4MVY52TG5","short_pith_number":"pith:TPGVXDJA","canonical_record":{"source":{"id":"1207.2464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2012-07-10T15:50:16Z","cross_cats_sorted":["physics.bio-ph","quant-ph"],"title_canon_sha256":"8154add2e7eb953f158ae52e5038536678e4a192461fdee9252082926cc4cdf2","abstract_canon_sha256":"e7c0be2d68c7f61e3bb047ce9843e39ac0f783f9617fc839954d85d97e8059a3"},"schema_version":"1.0"},"canonical_sha256":"9bcd5b8d20d25897a1b2bf195c77533768e5dfbf1fc6acfd8929755b2a976b64","source":{"kind":"arxiv","id":"1207.2464","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.2464","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"arxiv_version","alias_value":"1207.2464v1","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.2464","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"pith_short_12","alias_value":"TPGVXDJA2JMJ","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TPGVXDJA2JMJPINS","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TPGVXDJA","created_at":"2026-05-18T12:27:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:TPGVXDJA2JMJPINSX4MVY52TG5","target":"record","payload":{"canonical_record":{"source":{"id":"1207.2464","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2012-07-10T15:50:16Z","cross_cats_sorted":["physics.bio-ph","quant-ph"],"title_canon_sha256":"8154add2e7eb953f158ae52e5038536678e4a192461fdee9252082926cc4cdf2","abstract_canon_sha256":"e7c0be2d68c7f61e3bb047ce9843e39ac0f783f9617fc839954d85d97e8059a3"},"schema_version":"1.0"},"canonical_sha256":"9bcd5b8d20d25897a1b2bf195c77533768e5dfbf1fc6acfd8929755b2a976b64","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:56:25.678754Z","signature_b64":"t/Cv2ZMD//l80h2rqH5MFwSDT/IrE4Cui0VSwNRFtX6oU0mCaGqIRbBauv7pqaXZKh8PA0R4I8ExARYAy8ppAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9bcd5b8d20d25897a1b2bf195c77533768e5dfbf1fc6acfd8929755b2a976b64","last_reissued_at":"2026-05-18T01:56:25.678052Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:56:25.678052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1207.2464","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":"2026-05-18T01:56:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bJxnWLU+7T0jkcOZAbtP1XMvOZOis8ttSgTGbxwn7Oc+6Q7va3foX9vcOftc/IkxWddSUE5OtMlm+bQxmFtcDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T13:53:22.515505Z"},"content_sha256":"b99c35f7fa9174f5a8eb808a414b5c86cec0d21ed19fab7ff87651977a0b33bc","schema_version":"1.0","event_id":"sha256:b99c35f7fa9174f5a8eb808a414b5c86cec0d21ed19fab7ff87651977a0b33bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:TPGVXDJA2JMJPINSX4MVY52TG5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Excitonic energy transfer in light-harvesting complexes in purple bacteria","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.bio-ph","quant-ph"],"primary_cat":"physics.chem-ph","authors_text":"Chee Kong Lee, Jianshu Cao, Jun Ye, Kewei Sun, Yang Zhao, Yunjin Yu","submitted_at":"2012-07-10T15:50:16Z","abstract_excerpt":"Two distinct approaches, the Frenkel-Dirac time-dependent variation and the Haken-Strobl model, are adopted to study energy transfer dynamics in single-ring and double-ring light-harvesting systems in purple bacteria. It is found that inclusion of long-range dipolar interactions in the two methods results in significant increases in intra- or inter-ring exciton transfer efficiency. The dependence of exciton transfer efficiency on trapping positions on single rings of LH2 (B850) and LH1 is similar to that in toy models with nearest-neighbor coupling only. However, owing to the symmetry breaking"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2464","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:56:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9LCyiZXeVBbEw7q3lIl487NGw7pSuAGCsaXaVx36EDuX33g78XyG7gctnWE3q6iAO57RZEZFHxJjdW6dt6aiBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-01T13:53:22.515862Z"},"content_sha256":"3fc7ad808d54f4f35968cf54907cb756ddfec25c8f4de7277e3dab9c4630db0f","schema_version":"1.0","event_id":"sha256:3fc7ad808d54f4f35968cf54907cb756ddfec25c8f4de7277e3dab9c4630db0f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/TPGVXDJA2JMJPINSX4MVY52TG5/bundle.json","state_url":"https://pith.science/pith/TPGVXDJA2JMJPINSX4MVY52TG5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/TPGVXDJA2JMJPINSX4MVY52TG5/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":"2026-07-01T13:53:22Z","links":{"resolver":"https://pith.science/pith/TPGVXDJA2JMJPINSX4MVY52TG5","bundle":"https://pith.science/pith/TPGVXDJA2JMJPINSX4MVY52TG5/bundle.json","state":"https://pith.science/pith/TPGVXDJA2JMJPINSX4MVY52TG5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/TPGVXDJA2JMJPINSX4MVY52TG5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:TPGVXDJA2JMJPINSX4MVY52TG5","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":"e7c0be2d68c7f61e3bb047ce9843e39ac0f783f9617fc839954d85d97e8059a3","cross_cats_sorted":["physics.bio-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2012-07-10T15:50:16Z","title_canon_sha256":"8154add2e7eb953f158ae52e5038536678e4a192461fdee9252082926cc4cdf2"},"schema_version":"1.0","source":{"id":"1207.2464","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1207.2464","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"arxiv_version","alias_value":"1207.2464v1","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1207.2464","created_at":"2026-05-18T01:56:25Z"},{"alias_kind":"pith_short_12","alias_value":"TPGVXDJA2JMJ","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_16","alias_value":"TPGVXDJA2JMJPINS","created_at":"2026-05-18T12:27:23Z"},{"alias_kind":"pith_short_8","alias_value":"TPGVXDJA","created_at":"2026-05-18T12:27:23Z"}],"graph_snapshots":[{"event_id":"sha256:3fc7ad808d54f4f35968cf54907cb756ddfec25c8f4de7277e3dab9c4630db0f","target":"graph","created_at":"2026-05-18T01:56:25Z","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"},"paper":{"abstract_excerpt":"Two distinct approaches, the Frenkel-Dirac time-dependent variation and the Haken-Strobl model, are adopted to study energy transfer dynamics in single-ring and double-ring light-harvesting systems in purple bacteria. It is found that inclusion of long-range dipolar interactions in the two methods results in significant increases in intra- or inter-ring exciton transfer efficiency. The dependence of exciton transfer efficiency on trapping positions on single rings of LH2 (B850) and LH1 is similar to that in toy models with nearest-neighbor coupling only. However, owing to the symmetry breaking","authors_text":"Chee Kong Lee, Jianshu Cao, Jun Ye, Kewei Sun, Yang Zhao, Yunjin Yu","cross_cats":["physics.bio-ph","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2012-07-10T15:50:16Z","title":"Excitonic energy transfer in light-harvesting complexes in purple bacteria"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1207.2464","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:b99c35f7fa9174f5a8eb808a414b5c86cec0d21ed19fab7ff87651977a0b33bc","target":"record","created_at":"2026-05-18T01:56:25Z","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":"e7c0be2d68c7f61e3bb047ce9843e39ac0f783f9617fc839954d85d97e8059a3","cross_cats_sorted":["physics.bio-ph","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2012-07-10T15:50:16Z","title_canon_sha256":"8154add2e7eb953f158ae52e5038536678e4a192461fdee9252082926cc4cdf2"},"schema_version":"1.0","source":{"id":"1207.2464","kind":"arxiv","version":1}},"canonical_sha256":"9bcd5b8d20d25897a1b2bf195c77533768e5dfbf1fc6acfd8929755b2a976b64","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9bcd5b8d20d25897a1b2bf195c77533768e5dfbf1fc6acfd8929755b2a976b64","first_computed_at":"2026-05-18T01:56:25.678052Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:56:25.678052Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"t/Cv2ZMD//l80h2rqH5MFwSDT/IrE4Cui0VSwNRFtX6oU0mCaGqIRbBauv7pqaXZKh8PA0R4I8ExARYAy8ppAw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:56:25.678754Z","signed_message":"canonical_sha256_bytes"},"source_id":"1207.2464","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b99c35f7fa9174f5a8eb808a414b5c86cec0d21ed19fab7ff87651977a0b33bc","sha256:3fc7ad808d54f4f35968cf54907cb756ddfec25c8f4de7277e3dab9c4630db0f"],"state_sha256":"c204b39daa382df98e8e83da3474c3aa6663408e12fbb5a24bfb00b75e4d536e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y8o8uXNzNzutoT0kq+5vDEcuShhZcsvranCVcYtAoiCzBto5s8cy7e1dLsw6Al5BbqOP2pKimNp55nMLZk0IDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-01T13:53:22.517834Z","bundle_sha256":"341e0424cf6e34b486c406fa08098da4f953c051141eff7014f4dcd2f7e918d3"}}