{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:AJN4RAFCFBK6BTXMUZ7BIPBRNL","short_pith_number":"pith:AJN4RAFC","canonical_record":{"source":{"id":"2006.03454","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2020-06-03T18:51:59Z","cross_cats_sorted":["physics.ao-ph"],"title_canon_sha256":"9b66723f95a559fc5a4e1fd0e09a1d15f143311b97afd9b0042d448ea27c9017","abstract_canon_sha256":"2c1d675f43221adfb4ee6a8da64161db0a20bf57301ebe381bea0ca10e4bd2dc"},"schema_version":"1.0"},"canonical_sha256":"025bc880a22855e0ceeca67e143c316af597e7d8182069908f69a22501b4ee05","source":{"kind":"arxiv","id":"2006.03454","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.03454","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"arxiv_version","alias_value":"2006.03454v3","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.03454","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"pith_short_12","alias_value":"AJN4RAFCFBK6","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"pith_short_16","alias_value":"AJN4RAFCFBK6BTXM","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"pith_short_8","alias_value":"AJN4RAFC","created_at":"2026-07-05T02:59:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:AJN4RAFCFBK6BTXMUZ7BIPBRNL","target":"record","payload":{"canonical_record":{"source":{"id":"2006.03454","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2020-06-03T18:51:59Z","cross_cats_sorted":["physics.ao-ph"],"title_canon_sha256":"9b66723f95a559fc5a4e1fd0e09a1d15f143311b97afd9b0042d448ea27c9017","abstract_canon_sha256":"2c1d675f43221adfb4ee6a8da64161db0a20bf57301ebe381bea0ca10e4bd2dc"},"schema_version":"1.0"},"canonical_sha256":"025bc880a22855e0ceeca67e143c316af597e7d8182069908f69a22501b4ee05","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:59:34.973958Z","signature_b64":"2u4n9lSiTwip5rIjHdpWLcI7fpDWlpNJmQmkFeUUKl3HbybKagqF5oETCPCMBD6l+V0qojyoZQuDrh8HmPtGAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"025bc880a22855e0ceeca67e143c316af597e7d8182069908f69a22501b4ee05","last_reissued_at":"2026-07-05T02:59:34.973555Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:59:34.973555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2006.03454","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T02:59:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5O6uBJIjjPCzV+3GbSmemyWZuQrREIrqgD+BfumHdAPnFLYrK9ovd/n6xjXhYERhwFv+SR99MeGg22cwiKp2Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:48:17.207920Z"},"content_sha256":"3910d546161d4e9af9a48d879a3c20d702dca111ffea8976d6df5413d0601007","schema_version":"1.0","event_id":"sha256:3910d546161d4e9af9a48d879a3c20d702dca111ffea8976d6df5413d0601007"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:AJN4RAFCFBK6BTXMUZ7BIPBRNL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Solar UV$-$B$/$A radiation is highly effective in inactivating SARS$-$CoV$-$2","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ao-ph"],"primary_cat":"q-bio.PE","authors_text":"A. Bianco, D. Trabattoni, E. Antonello, F. Nicastro, G. Pareschi, G. Sironi, I. Ermolli, J. R. Brucato, M. Biasin, M. Clerici, M. Salvati, P. Tozzi","submitted_at":"2020-06-03T18:51:59Z","abstract_excerpt":"Solar UV$-$C photons do not reach Earth's surface, but are known to be endowed with germicidal properties that are also effective on viruses. The effect of softer UV$-$B and UV$-$A photons, which copiously reach the Earth's surface, on viruses are instead little studied, particularly on single$-$stranded RNA viruses. Here we combine our measurements of the action spectrum of Covid$-$19 in response to UV light, Solar irradiation measurements on Earth during the SARS$-$CoV$-$2 pandemics, worldwide recorded Covid$-$19 mortality data and our 'Solar$-$Pump' diffusive model of epidemics to show that"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.03454","kind":"arxiv","version":3},"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/2006.03454/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":"2026-07-05T02:59:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Huo4erbPBQwAwadeF3ZPf4n3EkK6nsRbGn9ta5ybmzcw25V6l/RyzhWJ78KC1K/2HMIZS/RUQcwr8MlKREYODA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T21:48:17.208329Z"},"content_sha256":"25b4c69e1f8c46369af2c103139d84d23f9e600ca20fcca35b2a0348f7897ada","schema_version":"1.0","event_id":"sha256:25b4c69e1f8c46369af2c103139d84d23f9e600ca20fcca35b2a0348f7897ada"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AJN4RAFCFBK6BTXMUZ7BIPBRNL/bundle.json","state_url":"https://pith.science/pith/AJN4RAFCFBK6BTXMUZ7BIPBRNL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AJN4RAFCFBK6BTXMUZ7BIPBRNL/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":"2026-08-03T21:48:17Z","links":{"resolver":"https://pith.science/pith/AJN4RAFCFBK6BTXMUZ7BIPBRNL","bundle":"https://pith.science/pith/AJN4RAFCFBK6BTXMUZ7BIPBRNL/bundle.json","state":"https://pith.science/pith/AJN4RAFCFBK6BTXMUZ7BIPBRNL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AJN4RAFCFBK6BTXMUZ7BIPBRNL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:AJN4RAFCFBK6BTXMUZ7BIPBRNL","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":"2c1d675f43221adfb4ee6a8da64161db0a20bf57301ebe381bea0ca10e4bd2dc","cross_cats_sorted":["physics.ao-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2020-06-03T18:51:59Z","title_canon_sha256":"9b66723f95a559fc5a4e1fd0e09a1d15f143311b97afd9b0042d448ea27c9017"},"schema_version":"1.0","source":{"id":"2006.03454","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2006.03454","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"arxiv_version","alias_value":"2006.03454v3","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2006.03454","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"pith_short_12","alias_value":"AJN4RAFCFBK6","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"pith_short_16","alias_value":"AJN4RAFCFBK6BTXM","created_at":"2026-07-05T02:59:34Z"},{"alias_kind":"pith_short_8","alias_value":"AJN4RAFC","created_at":"2026-07-05T02:59:34Z"}],"graph_snapshots":[{"event_id":"sha256:25b4c69e1f8c46369af2c103139d84d23f9e600ca20fcca35b2a0348f7897ada","target":"graph","created_at":"2026-07-05T02:59:34Z","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/2006.03454/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Solar UV$-$C photons do not reach Earth's surface, but are known to be endowed with germicidal properties that are also effective on viruses. The effect of softer UV$-$B and UV$-$A photons, which copiously reach the Earth's surface, on viruses are instead little studied, particularly on single$-$stranded RNA viruses. Here we combine our measurements of the action spectrum of Covid$-$19 in response to UV light, Solar irradiation measurements on Earth during the SARS$-$CoV$-$2 pandemics, worldwide recorded Covid$-$19 mortality data and our 'Solar$-$Pump' diffusive model of epidemics to show that","authors_text":"A. Bianco, D. Trabattoni, E. Antonello, F. Nicastro, G. Pareschi, G. Sironi, I. Ermolli, J. R. Brucato, M. Biasin, M. Clerici, M. Salvati, P. Tozzi","cross_cats":["physics.ao-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2020-06-03T18:51:59Z","title":"Solar UV$-$B$/$A radiation is highly effective in inactivating SARS$-$CoV$-$2"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2006.03454","kind":"arxiv","version":3},"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":"sha256:3910d546161d4e9af9a48d879a3c20d702dca111ffea8976d6df5413d0601007","target":"record","created_at":"2026-07-05T02:59:34Z","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":"2c1d675f43221adfb4ee6a8da64161db0a20bf57301ebe381bea0ca10e4bd2dc","cross_cats_sorted":["physics.ao-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"q-bio.PE","submitted_at":"2020-06-03T18:51:59Z","title_canon_sha256":"9b66723f95a559fc5a4e1fd0e09a1d15f143311b97afd9b0042d448ea27c9017"},"schema_version":"1.0","source":{"id":"2006.03454","kind":"arxiv","version":3}},"canonical_sha256":"025bc880a22855e0ceeca67e143c316af597e7d8182069908f69a22501b4ee05","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"025bc880a22855e0ceeca67e143c316af597e7d8182069908f69a22501b4ee05","first_computed_at":"2026-07-05T02:59:34.973555Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:59:34.973555Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2u4n9lSiTwip5rIjHdpWLcI7fpDWlpNJmQmkFeUUKl3HbybKagqF5oETCPCMBD6l+V0qojyoZQuDrh8HmPtGAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:59:34.973958Z","signed_message":"canonical_sha256_bytes"},"source_id":"2006.03454","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3910d546161d4e9af9a48d879a3c20d702dca111ffea8976d6df5413d0601007","sha256:25b4c69e1f8c46369af2c103139d84d23f9e600ca20fcca35b2a0348f7897ada"],"state_sha256":"00678912e26a44589780b9f5a5a798c83f15b314d962bbcaeae1f0aff05f90d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"A2X1nE8/OgXE8FPEE6E1306CL9jYCBbdMVQMQH2SuFnIBe/f0lmjcJqcW76p1QNfmy/RCVuY9JI8rX6YVTjYAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T21:48:17.212075Z","bundle_sha256":"3990c666f8c54e8c2a30fb15caf555ad78d44e2681d84d7a9774be8f42e6e1c3"}}