{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:56ZARNUXB3RFIFH2R4QMSH6VO5","short_pith_number":"pith:56ZARNUX","canonical_record":{"source":{"id":"2505.10226","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-05-15T12:33:54Z","cross_cats_sorted":[],"title_canon_sha256":"6a86c26fe73455555cc7e6c8a741ce6d0c7de45fbe33034fb8fe6a324157c056","abstract_canon_sha256":"0c0cd97af5794c7b97047ef91432afb971b1f9f8ea0512eb7b4a44c2e734f8a7"},"schema_version":"1.0"},"canonical_sha256":"efb208b6970ee25414fa8f20c91fd5776a03b5995fb87a662508484cc0f96352","source":{"kind":"arxiv","id":"2505.10226","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.10226","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"arxiv_version","alias_value":"2505.10226v1","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.10226","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"pith_short_12","alias_value":"56ZARNUXB3RF","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"pith_short_16","alias_value":"56ZARNUXB3RFIFH2","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"pith_short_8","alias_value":"56ZARNUX","created_at":"2026-07-05T11:03:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:56ZARNUXB3RFIFH2R4QMSH6VO5","target":"record","payload":{"canonical_record":{"source":{"id":"2505.10226","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-05-15T12:33:54Z","cross_cats_sorted":[],"title_canon_sha256":"6a86c26fe73455555cc7e6c8a741ce6d0c7de45fbe33034fb8fe6a324157c056","abstract_canon_sha256":"0c0cd97af5794c7b97047ef91432afb971b1f9f8ea0512eb7b4a44c2e734f8a7"},"schema_version":"1.0"},"canonical_sha256":"efb208b6970ee25414fa8f20c91fd5776a03b5995fb87a662508484cc0f96352","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:03:35.457023Z","signature_b64":"g0f5270AltXq8s4bbunQ/aBYWdHiYpHEfL2N6AKhfKKoOYO6VtGW9tdLuPDzBqTzm9ptzbcdebIFNrgJzgRZCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"efb208b6970ee25414fa8f20c91fd5776a03b5995fb87a662508484cc0f96352","last_reissued_at":"2026-07-05T11:03:35.456617Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:03:35.456617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.10226","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":"2026-07-05T11:03:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"SJFszx7UrA1GhU0CG05YQkqBtEeCakdKAX7clRQP+KEDnfno2w8mVUUFNxlbfejQC3uWkwJvFnJ994moW8yZDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:44:29.790810Z"},"content_sha256":"2020d7d784e13e5f1d4eae8da1dcd04db1055ac06b78d3cae3c877859aeff4b5","schema_version":"1.0","event_id":"sha256:2020d7d784e13e5f1d4eae8da1dcd04db1055ac06b78d3cae3c877859aeff4b5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:56ZARNUXB3RFIFH2R4QMSH6VO5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solar-CSK: Decoding Color Coded Visible Light Communications using Solar Cells","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.NI","authors_text":"Ashraf Uddin, Brano Kusy, Cheng Jiang, Jiawei Hu, Mahbub Hassan, Wen Hu, Yanxiang Wang, Yihe Yan","submitted_at":"2025-05-15T12:33:54Z","abstract_excerpt":"Visible Light Communication (VLC) provides an energy-efficient wireless solution by using existing LED-based illumination for high-speed data transmissions. Although solar cells offer the advantage of simultaneous energy harvesting and data reception, their broadband nature hinders accurate decoding of color-coded signals like Color Shift Keying (CSK). In this paper, we propose a novel approach exploiting the concept of tandem solar cells, multi-layer devices with partial wavelength selectivity, to capture coarse color information without resorting to energy-limiting color filters. To address "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.10226","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/2505.10226/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":"2026-07-05T11:03:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"en74lp7Il/Bg/vrM8Pvt9NQXg6h1N/aYUoqbc2tHRmfNXj2qpQ+MfRBLUQQxiRK4ph1UHkHCkh+8XbNithP/Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:44:29.791178Z"},"content_sha256":"ad827fe896e44974ca382b59b7795708f3333b5de42f39141a6f42054cc28ca6","schema_version":"1.0","event_id":"sha256:ad827fe896e44974ca382b59b7795708f3333b5de42f39141a6f42054cc28ca6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/56ZARNUXB3RFIFH2R4QMSH6VO5/bundle.json","state_url":"https://pith.science/pith/56ZARNUXB3RFIFH2R4QMSH6VO5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/56ZARNUXB3RFIFH2R4QMSH6VO5/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":"2026-07-07T13:44:29Z","links":{"resolver":"https://pith.science/pith/56ZARNUXB3RFIFH2R4QMSH6VO5","bundle":"https://pith.science/pith/56ZARNUXB3RFIFH2R4QMSH6VO5/bundle.json","state":"https://pith.science/pith/56ZARNUXB3RFIFH2R4QMSH6VO5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/56ZARNUXB3RFIFH2R4QMSH6VO5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:56ZARNUXB3RFIFH2R4QMSH6VO5","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":"0c0cd97af5794c7b97047ef91432afb971b1f9f8ea0512eb7b4a44c2e734f8a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-05-15T12:33:54Z","title_canon_sha256":"6a86c26fe73455555cc7e6c8a741ce6d0c7de45fbe33034fb8fe6a324157c056"},"schema_version":"1.0","source":{"id":"2505.10226","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.10226","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"arxiv_version","alias_value":"2505.10226v1","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.10226","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"pith_short_12","alias_value":"56ZARNUXB3RF","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"pith_short_16","alias_value":"56ZARNUXB3RFIFH2","created_at":"2026-07-05T11:03:35Z"},{"alias_kind":"pith_short_8","alias_value":"56ZARNUX","created_at":"2026-07-05T11:03:35Z"}],"graph_snapshots":[{"event_id":"sha256:ad827fe896e44974ca382b59b7795708f3333b5de42f39141a6f42054cc28ca6","target":"graph","created_at":"2026-07-05T11:03:35Z","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/2505.10226/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Visible Light Communication (VLC) provides an energy-efficient wireless solution by using existing LED-based illumination for high-speed data transmissions. Although solar cells offer the advantage of simultaneous energy harvesting and data reception, their broadband nature hinders accurate decoding of color-coded signals like Color Shift Keying (CSK). In this paper, we propose a novel approach exploiting the concept of tandem solar cells, multi-layer devices with partial wavelength selectivity, to capture coarse color information without resorting to energy-limiting color filters. To address ","authors_text":"Ashraf Uddin, Brano Kusy, Cheng Jiang, Jiawei Hu, Mahbub Hassan, Wen Hu, Yanxiang Wang, Yihe Yan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-05-15T12:33:54Z","title":"Solar-CSK: Decoding Color Coded Visible Light Communications using Solar Cells"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.10226","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":"sha256:2020d7d784e13e5f1d4eae8da1dcd04db1055ac06b78d3cae3c877859aeff4b5","target":"record","created_at":"2026-07-05T11:03:35Z","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":"0c0cd97af5794c7b97047ef91432afb971b1f9f8ea0512eb7b4a44c2e734f8a7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.NI","submitted_at":"2025-05-15T12:33:54Z","title_canon_sha256":"6a86c26fe73455555cc7e6c8a741ce6d0c7de45fbe33034fb8fe6a324157c056"},"schema_version":"1.0","source":{"id":"2505.10226","kind":"arxiv","version":1}},"canonical_sha256":"efb208b6970ee25414fa8f20c91fd5776a03b5995fb87a662508484cc0f96352","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"efb208b6970ee25414fa8f20c91fd5776a03b5995fb87a662508484cc0f96352","first_computed_at":"2026-07-05T11:03:35.456617Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:03:35.456617Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g0f5270AltXq8s4bbunQ/aBYWdHiYpHEfL2N6AKhfKKoOYO6VtGW9tdLuPDzBqTzm9ptzbcdebIFNrgJzgRZCg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:03:35.457023Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.10226","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2020d7d784e13e5f1d4eae8da1dcd04db1055ac06b78d3cae3c877859aeff4b5","sha256:ad827fe896e44974ca382b59b7795708f3333b5de42f39141a6f42054cc28ca6"],"state_sha256":"32017f175f857cb08fcaa64cce7843744ce50c4fe9944ecd2cd9a5111374aa5e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fr9lFy2I5GYZrdJXk9I7HRyP8Rmw0wfeftOz816NxofiEIpdYkKMK29KM/9OkmeyV7/W3zzmpfv9lTxqetYiBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T13:44:29.793114Z","bundle_sha256":"c0c9add50f2e0ad821774a6acc1748852f06929911154023577f92d5c345cf6a"}}