{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:T2VWBE7RPI5KHIBBVOATVQOULX","short_pith_number":"pith:T2VWBE7R","canonical_record":{"source":{"id":"1802.01645","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-12-03T09:00:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"868ce5a79a8e803f6926428721f8e2ff4a2ce7341083990504fe4f1dcd7a08c4","abstract_canon_sha256":"ecf8e8013451d8564e88800cfeeaf0c8b0942cbb8eac52a53171c8133023a871"},"schema_version":"1.0"},"canonical_sha256":"9eab6093f17a3aa3a021ab813ac1d45dd93c6882996a07250f0179f31330d790","source":{"kind":"arxiv","id":"1802.01645","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01645","created_at":"2026-05-18T00:24:21Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01645v1","created_at":"2026-05-18T00:24:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01645","created_at":"2026-05-18T00:24:21Z"},{"alias_kind":"pith_short_12","alias_value":"T2VWBE7RPI5K","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"T2VWBE7RPI5KHIBB","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"T2VWBE7R","created_at":"2026-05-18T12:31:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:T2VWBE7RPI5KHIBBVOATVQOULX","target":"record","payload":{"canonical_record":{"source":{"id":"1802.01645","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-12-03T09:00:53Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"868ce5a79a8e803f6926428721f8e2ff4a2ce7341083990504fe4f1dcd7a08c4","abstract_canon_sha256":"ecf8e8013451d8564e88800cfeeaf0c8b0942cbb8eac52a53171c8133023a871"},"schema_version":"1.0"},"canonical_sha256":"9eab6093f17a3aa3a021ab813ac1d45dd93c6882996a07250f0179f31330d790","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:24:21.814880Z","signature_b64":"GtZjIawJJpO6vPHKJuimr2NVh+aCTLi6HZLlaYsC0xm1O33YYWTbwqN0wqNoVecE0/EJBue6cEK751KhK6iQAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9eab6093f17a3aa3a021ab813ac1d45dd93c6882996a07250f0179f31330d790","last_reissued_at":"2026-05-18T00:24:21.814405Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:24:21.814405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1802.01645","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":"2026-05-18T00:24:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8ojfRWoi8aRRMzMxIUQX6AM62S04r9sACAEjZs8VwYgrAcnKosorZBkU9PZqugWPdQvrG52VZaa6iSPlqJrlAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:56:35.777258Z"},"content_sha256":"864bcb9a8c3c71ff37b918fba1162dde889430bcdec00cf4a6cd0877ea963636","schema_version":"1.0","event_id":"sha256:864bcb9a8c3c71ff37b918fba1162dde889430bcdec00cf4a6cd0877ea963636"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:T2VWBE7RPI5KHIBBVOATVQOULX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Semi-Transparent Solar Cell enabled by Frequency Selective Light Trapping","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"physics.app-ph","authors_text":"Duncan C. Wheeler, Gang Chen, Marin Soljacic, Ognjen Ilic, Svetlana V. Boriskina, Yichen Shen, Yi Huang, Yi Yang","submitted_at":"2017-12-03T09:00:53Z","abstract_excerpt":"We propose a frequency selective light trapping scheme that enables the creation of more visually-transparent and yet simultaneously more efficient semitransparent solar cells. A nanoparticle scattering layer and photonic stack back reflector create a selective trapping effect by total internal reflection within a medium, increasing absorption of IR light. We propose a strong frequency selective scattering layer using spherical TiO2 nanoparticles with radius of 255 nm and area density of 1.1% in a medium with index of refraction of 1.5. Using detailed numerical simulations for this configurati"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01645","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":"2026-05-18T00:24:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YhRPbgCNNSGc0YxsuVW5AyWDxiN4bVdAsK0C/4uZtBVl66mZmz20/KTGfz04p7RYCgKmdAgD0LPm0Ijsyop2Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T13:56:35.777625Z"},"content_sha256":"6d27d41c8c6fc5ebd5d247442ac9cb3720329b28bacf79530f26d675d2022ed7","schema_version":"1.0","event_id":"sha256:6d27d41c8c6fc5ebd5d247442ac9cb3720329b28bacf79530f26d675d2022ed7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T2VWBE7RPI5KHIBBVOATVQOULX/bundle.json","state_url":"https://pith.science/pith/T2VWBE7RPI5KHIBBVOATVQOULX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T2VWBE7RPI5KHIBBVOATVQOULX/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":"2026-05-28T13:56:35Z","links":{"resolver":"https://pith.science/pith/T2VWBE7RPI5KHIBBVOATVQOULX","bundle":"https://pith.science/pith/T2VWBE7RPI5KHIBBVOATVQOULX/bundle.json","state":"https://pith.science/pith/T2VWBE7RPI5KHIBBVOATVQOULX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T2VWBE7RPI5KHIBBVOATVQOULX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:T2VWBE7RPI5KHIBBVOATVQOULX","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":"ecf8e8013451d8564e88800cfeeaf0c8b0942cbb8eac52a53171c8133023a871","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-12-03T09:00:53Z","title_canon_sha256":"868ce5a79a8e803f6926428721f8e2ff4a2ce7341083990504fe4f1dcd7a08c4"},"schema_version":"1.0","source":{"id":"1802.01645","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.01645","created_at":"2026-05-18T00:24:21Z"},{"alias_kind":"arxiv_version","alias_value":"1802.01645v1","created_at":"2026-05-18T00:24:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.01645","created_at":"2026-05-18T00:24:21Z"},{"alias_kind":"pith_short_12","alias_value":"T2VWBE7RPI5K","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_16","alias_value":"T2VWBE7RPI5KHIBB","created_at":"2026-05-18T12:31:43Z"},{"alias_kind":"pith_short_8","alias_value":"T2VWBE7R","created_at":"2026-05-18T12:31:43Z"}],"graph_snapshots":[{"event_id":"sha256:6d27d41c8c6fc5ebd5d247442ac9cb3720329b28bacf79530f26d675d2022ed7","target":"graph","created_at":"2026-05-18T00:24:21Z","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":"We propose a frequency selective light trapping scheme that enables the creation of more visually-transparent and yet simultaneously more efficient semitransparent solar cells. A nanoparticle scattering layer and photonic stack back reflector create a selective trapping effect by total internal reflection within a medium, increasing absorption of IR light. We propose a strong frequency selective scattering layer using spherical TiO2 nanoparticles with radius of 255 nm and area density of 1.1% in a medium with index of refraction of 1.5. Using detailed numerical simulations for this configurati","authors_text":"Duncan C. Wheeler, Gang Chen, Marin Soljacic, Ognjen Ilic, Svetlana V. Boriskina, Yichen Shen, Yi Huang, Yi Yang","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-12-03T09:00:53Z","title":"Semi-Transparent Solar Cell enabled by Frequency Selective Light Trapping"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.01645","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":"sha256:864bcb9a8c3c71ff37b918fba1162dde889430bcdec00cf4a6cd0877ea963636","target":"record","created_at":"2026-05-18T00:24:21Z","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":"ecf8e8013451d8564e88800cfeeaf0c8b0942cbb8eac52a53171c8133023a871","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.app-ph","submitted_at":"2017-12-03T09:00:53Z","title_canon_sha256":"868ce5a79a8e803f6926428721f8e2ff4a2ce7341083990504fe4f1dcd7a08c4"},"schema_version":"1.0","source":{"id":"1802.01645","kind":"arxiv","version":1}},"canonical_sha256":"9eab6093f17a3aa3a021ab813ac1d45dd93c6882996a07250f0179f31330d790","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9eab6093f17a3aa3a021ab813ac1d45dd93c6882996a07250f0179f31330d790","first_computed_at":"2026-05-18T00:24:21.814405Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:24:21.814405Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"GtZjIawJJpO6vPHKJuimr2NVh+aCTLi6HZLlaYsC0xm1O33YYWTbwqN0wqNoVecE0/EJBue6cEK751KhK6iQAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:24:21.814880Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.01645","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:864bcb9a8c3c71ff37b918fba1162dde889430bcdec00cf4a6cd0877ea963636","sha256:6d27d41c8c6fc5ebd5d247442ac9cb3720329b28bacf79530f26d675d2022ed7"],"state_sha256":"e36a37d24bd3cdfe68ec9847b158d8c15fd5589fd089dc7c5f02da8a3acc7801"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W9Aa5MHYME9m5KZ0orzhTUyKLwg5fuQnyVspwvsRzs231ns+Wh25Euen6b4snb2EIIhmPBI7CQL9hbP8akJLBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T13:56:35.779599Z","bundle_sha256":"134cde5f39e106ced84d3d03b9dc4b90bfa05b35ae3d7943b6051999ca4f15f8"}}