{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:S25I26OMYWCY54AXGDRANWISNZ","short_pith_number":"pith:S25I26OM","canonical_record":{"source":{"id":"1109.5471","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-26T07:58:36Z","cross_cats_sorted":[],"title_canon_sha256":"4a6771e84d51303f717830b2ce196e6ca1ee5c8d1dead4c6f77b0f1f20cf8c0d","abstract_canon_sha256":"eb33955db406fb4b1cef77b4ac32389b45e9ed4fac1626bd9467ee7acbf5e4ba"},"schema_version":"1.0"},"canonical_sha256":"96ba8d79ccc5858ef01730e206d9126e54c6f658211d3af321500cf829000742","source":{"kind":"arxiv","id":"1109.5471","version":4},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.5471","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"arxiv_version","alias_value":"1109.5471v4","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.5471","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"pith_short_12","alias_value":"S25I26OMYWCY","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"S25I26OMYWCY54AX","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"S25I26OM","created_at":"2026-05-18T12:26:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:S25I26OMYWCY54AXGDRANWISNZ","target":"record","payload":{"canonical_record":{"source":{"id":"1109.5471","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-26T07:58:36Z","cross_cats_sorted":[],"title_canon_sha256":"4a6771e84d51303f717830b2ce196e6ca1ee5c8d1dead4c6f77b0f1f20cf8c0d","abstract_canon_sha256":"eb33955db406fb4b1cef77b4ac32389b45e9ed4fac1626bd9467ee7acbf5e4ba"},"schema_version":"1.0"},"canonical_sha256":"96ba8d79ccc5858ef01730e206d9126e54c6f658211d3af321500cf829000742","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:58:51.236667Z","signature_b64":"3Ku3VXHSnnBS8xI5O5nZJCLL2SeUcldxYvSFbgU3GplVoHIGfpcAnhBE/rlUnJSs08pAEScN3Yub6unEvTAxBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"96ba8d79ccc5858ef01730e206d9126e54c6f658211d3af321500cf829000742","last_reissued_at":"2026-05-18T03:58:51.236244Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:58:51.236244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1109.5471","source_version":4,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T03:58:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bA3eF2RcP/3lYvuyEDd0x891+Rzkn8VZ7lwMWL5XFy81sZv7/OcEp0qVTCr8oa8d7tgn8pn1C7uD1Dcu5g2KCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T06:33:12.110956Z"},"content_sha256":"a698beec8aff1a6a87b648af8c9a496f3704f2ebcfe7a5c26212ed250af50da7","schema_version":"1.0","event_id":"sha256:a698beec8aff1a6a87b648af8c9a496f3704f2ebcfe7a5c26212ed250af50da7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:S25I26OMYWCY54AXGDRANWISNZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Non-hermitian exciton dynamics in a photosynthetic unit system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Thilagam","submitted_at":"2011-09-26T07:58:36Z","abstract_excerpt":"The non-hermitian quantum dynamics of excitonic energy transfer in photosynthetic systems is investigated using a dissipative two-level dimer model. The approach is based on the Green's function formalism which permits consideration of decoherence and intersite transfer processes on comparable terms. The results indicate a combination of coherent and incoherent behavior at higher temperatures with the possibility of exceptional points occurring at the coherent-incoherent crossover regime at critical temperatures. When each dimer site is coupled equally to the environmental sources of dissipati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.5471","kind":"arxiv","version":4},"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":"2026-05-18T03:58:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"csSGVVPV2/JMUll1U7mBgoSbATlxKvePQ5sUAPNqJCgPMM06lY2mUzhqwm5vyuRuaCRyuSoBNYAZzAzqCejeCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T06:33:12.111308Z"},"content_sha256":"22a7439ef566d79839bbbdfb215b015ac99dc13a168da0a18e6c7c7ba87e8793","schema_version":"1.0","event_id":"sha256:22a7439ef566d79839bbbdfb215b015ac99dc13a168da0a18e6c7c7ba87e8793"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/S25I26OMYWCY54AXGDRANWISNZ/bundle.json","state_url":"https://pith.science/pith/S25I26OMYWCY54AXGDRANWISNZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/S25I26OMYWCY54AXGDRANWISNZ/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":"2026-06-05T06:33:12Z","links":{"resolver":"https://pith.science/pith/S25I26OMYWCY54AXGDRANWISNZ","bundle":"https://pith.science/pith/S25I26OMYWCY54AXGDRANWISNZ/bundle.json","state":"https://pith.science/pith/S25I26OMYWCY54AXGDRANWISNZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/S25I26OMYWCY54AXGDRANWISNZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:S25I26OMYWCY54AXGDRANWISNZ","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":"eb33955db406fb4b1cef77b4ac32389b45e9ed4fac1626bd9467ee7acbf5e4ba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-26T07:58:36Z","title_canon_sha256":"4a6771e84d51303f717830b2ce196e6ca1ee5c8d1dead4c6f77b0f1f20cf8c0d"},"schema_version":"1.0","source":{"id":"1109.5471","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1109.5471","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"arxiv_version","alias_value":"1109.5471v4","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1109.5471","created_at":"2026-05-18T03:58:51Z"},{"alias_kind":"pith_short_12","alias_value":"S25I26OMYWCY","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_16","alias_value":"S25I26OMYWCY54AX","created_at":"2026-05-18T12:26:41Z"},{"alias_kind":"pith_short_8","alias_value":"S25I26OM","created_at":"2026-05-18T12:26:41Z"}],"graph_snapshots":[{"event_id":"sha256:22a7439ef566d79839bbbdfb215b015ac99dc13a168da0a18e6c7c7ba87e8793","target":"graph","created_at":"2026-05-18T03:58:51Z","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":"The non-hermitian quantum dynamics of excitonic energy transfer in photosynthetic systems is investigated using a dissipative two-level dimer model. The approach is based on the Green's function formalism which permits consideration of decoherence and intersite transfer processes on comparable terms. The results indicate a combination of coherent and incoherent behavior at higher temperatures with the possibility of exceptional points occurring at the coherent-incoherent crossover regime at critical temperatures. When each dimer site is coupled equally to the environmental sources of dissipati","authors_text":"A. Thilagam","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-26T07:58:36Z","title":"Non-hermitian exciton dynamics in a photosynthetic unit system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1109.5471","kind":"arxiv","version":4},"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:a698beec8aff1a6a87b648af8c9a496f3704f2ebcfe7a5c26212ed250af50da7","target":"record","created_at":"2026-05-18T03:58:51Z","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":"eb33955db406fb4b1cef77b4ac32389b45e9ed4fac1626bd9467ee7acbf5e4ba","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-09-26T07:58:36Z","title_canon_sha256":"4a6771e84d51303f717830b2ce196e6ca1ee5c8d1dead4c6f77b0f1f20cf8c0d"},"schema_version":"1.0","source":{"id":"1109.5471","kind":"arxiv","version":4}},"canonical_sha256":"96ba8d79ccc5858ef01730e206d9126e54c6f658211d3af321500cf829000742","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"96ba8d79ccc5858ef01730e206d9126e54c6f658211d3af321500cf829000742","first_computed_at":"2026-05-18T03:58:51.236244Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:58:51.236244Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3Ku3VXHSnnBS8xI5O5nZJCLL2SeUcldxYvSFbgU3GplVoHIGfpcAnhBE/rlUnJSs08pAEScN3Yub6unEvTAxBg==","signature_status":"signed_v1","signed_at":"2026-05-18T03:58:51.236667Z","signed_message":"canonical_sha256_bytes"},"source_id":"1109.5471","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a698beec8aff1a6a87b648af8c9a496f3704f2ebcfe7a5c26212ed250af50da7","sha256:22a7439ef566d79839bbbdfb215b015ac99dc13a168da0a18e6c7c7ba87e8793"],"state_sha256":"5bcb714860abf8a96a93a92fb516e35ea93a1b0ebf4a3feff0c0c9389c796601"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PZQqqwE5dsc14A+annLbjGcWlDEqF4O6Sr7ysLQhMSI/4CmR9We7lEeVyLq2/RXbM3NVciDeXogJ0RlMexeoBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T06:33:12.113517Z","bundle_sha256":"ea48b411c21df4dd69a82d61d9ab49676f7e7ae57ba00b9e0651af9ef1920645"}}