{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:NFJQDLSNYY2PEVBM756SXLUD2U","short_pith_number":"pith:NFJQDLSN","canonical_record":{"source":{"id":"2006.08349","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-06-15T12:36:40Z","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"title_canon_sha256":"5256852a9b93ba3a357384bd01e98fed4d966b9222485c2b84eadccee7771283","abstract_canon_sha256":"f403bf33bcb266a7f3c62c520c9cebba389a3756b0343b57602fbfdfc37bee77"},"schema_version":"1.0"},"canonical_sha256":"695301ae4dc634f2542cff7d2bae83d51e12ae9e35b298d117465fcf57bc9f8d","source":{"kind":"arxiv","id":"2006.08349","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.08349","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"arxiv_version","alias_value":"2006.08349v1","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.08349","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"pith_short_12","alias_value":"NFJQDLSNYY2P","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"pith_short_16","alias_value":"NFJQDLSNYY2PEVBM","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"pith_short_8","alias_value":"NFJQDLSN","created_at":"2026-07-05T02:05:41Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:NFJQDLSNYY2PEVBM756SXLUD2U","target":"record","payload":{"canonical_record":{"source":{"id":"2006.08349","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-06-15T12:36:40Z","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"title_canon_sha256":"5256852a9b93ba3a357384bd01e98fed4d966b9222485c2b84eadccee7771283","abstract_canon_sha256":"f403bf33bcb266a7f3c62c520c9cebba389a3756b0343b57602fbfdfc37bee77"},"schema_version":"1.0"},"canonical_sha256":"695301ae4dc634f2542cff7d2bae83d51e12ae9e35b298d117465fcf57bc9f8d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:05:41.032836Z","signature_b64":"Gk1veV3H5nKQhjbGZVaGnb1B78fv7ubFRXTEGF5reEPD05Wj6tqRMLJD3X7nxyz2he/iFQ9qOyHYdbDQsGLoAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"695301ae4dc634f2542cff7d2bae83d51e12ae9e35b298d117465fcf57bc9f8d","last_reissued_at":"2026-07-05T02:05:41.032384Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:05:41.032384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.08349","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":"2026-07-05T02:05:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yJimBFJ7tfqpNBPKZCYBaG9cZK+T+QQFOTcBibL/2fxxp+OubHqaiHHXfwR8FvCelwcrnOG5kre5y3qu+VbHAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:55:48.649055Z"},"content_sha256":"a7f2d089a1a98cd70f0d1675c7ee54ddd9548f31aefda6acca86293cab25cb28","schema_version":"1.0","event_id":"sha256:a7f2d089a1a98cd70f0d1675c7ee54ddd9548f31aefda6acca86293cab25cb28"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:NFJQDLSNYY2PEVBM756SXLUD2U","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A cyanine dye rotaxane porphyrin nanoring complex as a model light harvesting system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"primary_cat":"physics.chem-ph","authors_text":"Andrea Mattioni, Andrew T. Frawley, Felipe Caycedo-Soler, Harry L. Anderson, Jiratheep Pruchyathamkorn, Martin B. Plenio, Susana F. Huelga, William J. Kendrick","submitted_at":"2020-06-15T12:36:40Z","abstract_excerpt":"A nanoring-rotaxane supramolecular assembly, with a Cy7 cyanine dye (hexamethylindotricarbocyanine) threaded along the axis of the nanoring, has been synthesized as a model for the energy transfer between the light harvesting complex LH1 and the reaction center in purple bacteria photosynthesis. The complex displays efficient energy transfer from the central cyanine dye to the surrounding zinc porphyrin nanoring. We present a theoretical model that reproduces the absorption spectrum of the nanoring and quantifies the excitonic coupling between the nanoring and the central dye, explaining the e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.08349","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/2006.08349/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":"2026-07-05T02:05:41Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tb/PwQ2YvOO+DhQ0z/Bb36Jv4aDVVGSRbcYQKoqXWVQQzrSfH5YdiHjTP4zZ+nxyVoUpm6UY+n80Lz/7B+RQBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:55:48.649449Z"},"content_sha256":"274d68eb863fffe0cf6a6d7a9fe90486c01434e4bd3849850c819f5d03aaa13b","schema_version":"1.0","event_id":"sha256:274d68eb863fffe0cf6a6d7a9fe90486c01434e4bd3849850c819f5d03aaa13b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NFJQDLSNYY2PEVBM756SXLUD2U/bundle.json","state_url":"https://pith.science/pith/NFJQDLSNYY2PEVBM756SXLUD2U/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NFJQDLSNYY2PEVBM756SXLUD2U/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":"2026-07-07T15:55:48Z","links":{"resolver":"https://pith.science/pith/NFJQDLSNYY2PEVBM756SXLUD2U","bundle":"https://pith.science/pith/NFJQDLSNYY2PEVBM756SXLUD2U/bundle.json","state":"https://pith.science/pith/NFJQDLSNYY2PEVBM756SXLUD2U/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NFJQDLSNYY2PEVBM756SXLUD2U/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:NFJQDLSNYY2PEVBM756SXLUD2U","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":"f403bf33bcb266a7f3c62c520c9cebba389a3756b0343b57602fbfdfc37bee77","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-06-15T12:36:40Z","title_canon_sha256":"5256852a9b93ba3a357384bd01e98fed4d966b9222485c2b84eadccee7771283"},"schema_version":"1.0","source":{"id":"2006.08349","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.08349","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"arxiv_version","alias_value":"2006.08349v1","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.08349","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"pith_short_12","alias_value":"NFJQDLSNYY2P","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"pith_short_16","alias_value":"NFJQDLSNYY2PEVBM","created_at":"2026-07-05T02:05:41Z"},{"alias_kind":"pith_short_8","alias_value":"NFJQDLSN","created_at":"2026-07-05T02:05:41Z"}],"graph_snapshots":[{"event_id":"sha256:274d68eb863fffe0cf6a6d7a9fe90486c01434e4bd3849850c819f5d03aaa13b","target":"graph","created_at":"2026-07-05T02:05:41Z","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/2006.08349/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A nanoring-rotaxane supramolecular assembly, with a Cy7 cyanine dye (hexamethylindotricarbocyanine) threaded along the axis of the nanoring, has been synthesized as a model for the energy transfer between the light harvesting complex LH1 and the reaction center in purple bacteria photosynthesis. The complex displays efficient energy transfer from the central cyanine dye to the surrounding zinc porphyrin nanoring. We present a theoretical model that reproduces the absorption spectrum of the nanoring and quantifies the excitonic coupling between the nanoring and the central dye, explaining the e","authors_text":"Andrea Mattioni, Andrew T. Frawley, Felipe Caycedo-Soler, Harry L. Anderson, Jiratheep Pruchyathamkorn, Martin B. Plenio, Susana F. Huelga, William J. Kendrick","cross_cats":["cond-mat.mtrl-sci","quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-06-15T12:36:40Z","title":"A cyanine dye rotaxane porphyrin nanoring complex as a model light harvesting system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.08349","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:a7f2d089a1a98cd70f0d1675c7ee54ddd9548f31aefda6acca86293cab25cb28","target":"record","created_at":"2026-07-05T02:05:41Z","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":"f403bf33bcb266a7f3c62c520c9cebba389a3756b0343b57602fbfdfc37bee77","cross_cats_sorted":["cond-mat.mtrl-sci","quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2020-06-15T12:36:40Z","title_canon_sha256":"5256852a9b93ba3a357384bd01e98fed4d966b9222485c2b84eadccee7771283"},"schema_version":"1.0","source":{"id":"2006.08349","kind":"arxiv","version":1}},"canonical_sha256":"695301ae4dc634f2542cff7d2bae83d51e12ae9e35b298d117465fcf57bc9f8d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"695301ae4dc634f2542cff7d2bae83d51e12ae9e35b298d117465fcf57bc9f8d","first_computed_at":"2026-07-05T02:05:41.032384Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:05:41.032384Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Gk1veV3H5nKQhjbGZVaGnb1B78fv7ubFRXTEGF5reEPD05Wj6tqRMLJD3X7nxyz2he/iFQ9qOyHYdbDQsGLoAg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:05:41.032836Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.08349","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a7f2d089a1a98cd70f0d1675c7ee54ddd9548f31aefda6acca86293cab25cb28","sha256:274d68eb863fffe0cf6a6d7a9fe90486c01434e4bd3849850c819f5d03aaa13b"],"state_sha256":"7681f1d1eef46568f9638ba70b9f7236dabf2c2cc62dba2800e6b3601beccc54"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"91ii7YjT/nXqzFoBJQ2TkqsjRJEvlpHV9q72jmHk1B0vjs9vrP3f51qtjsDfXbYGC1E0p5v210FfnhASMae2DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:55:48.651437Z","bundle_sha256":"4f9b4ae7d7dc9bd470417a4e293b1381d06df91e8d9be510445747f1ea5df0a6"}}