{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:ZTW4SLMQ5OMQI4DLJDKDMV6HDT","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":"4d5818a66d7841bbddfb500e7c24fbfe35c45cd9b39b72e38c32fdf5cf3c2844","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-04-19T01:09:47Z","title_canon_sha256":"a53bdcbf5df5d8bbbff6acf4358b0fae99d6602719ed25e2b47b342f4b2eba29"},"schema_version":"1.0","source":{"id":"2104.08997","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.08997","created_at":"2026-07-05T02:32:57Z"},{"alias_kind":"arxiv_version","alias_value":"2104.08997v1","created_at":"2026-07-05T02:32:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.08997","created_at":"2026-07-05T02:32:57Z"},{"alias_kind":"pith_short_12","alias_value":"ZTW4SLMQ5OMQ","created_at":"2026-07-05T02:32:57Z"},{"alias_kind":"pith_short_16","alias_value":"ZTW4SLMQ5OMQI4DL","created_at":"2026-07-05T02:32:57Z"},{"alias_kind":"pith_short_8","alias_value":"ZTW4SLMQ","created_at":"2026-07-05T02:32:57Z"}],"graph_snapshots":[{"event_id":"sha256:14057ba921fb6badac593a456a2db70e0383544e17e671b63ca08da2e2c9225a","target":"graph","created_at":"2026-07-05T02:32:57Z","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/2104.08997/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Over the last twenty years, there have seen several outbreaks of different coronavirus diseases across the world. These outbreaks often led to respiratory tract diseases and have proved to be fatal sometimes. Currently, we are facing an elusive health crisis with the emergence of COVID-19 disease of the coronavirus family. One of the modes of transmission of COVID- 19 is airborne transmission. This transmission occurs as humans breathe in the droplets released by an infected person through breathing, speaking, singing, coughing, or sneezing. Hence, public health officials have mandated the use","authors_text":"Adaeze Okeukwu, Bishwas Mandal, Yihong Theis","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-04-19T01:09:47Z","title":"Masked Face Recognition using ResNet-50"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.08997","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:c3376dce00fce04883738a99eb3ce1472037b002e58976b89fa9e21d9d2bdcad","target":"record","created_at":"2026-07-05T02:32:57Z","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":"4d5818a66d7841bbddfb500e7c24fbfe35c45cd9b39b72e38c32fdf5cf3c2844","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-04-19T01:09:47Z","title_canon_sha256":"a53bdcbf5df5d8bbbff6acf4358b0fae99d6602719ed25e2b47b342f4b2eba29"},"schema_version":"1.0","source":{"id":"2104.08997","kind":"arxiv","version":1}},"canonical_sha256":"ccedc92d90eb9904706b48d43657c71cf0a02600f59c4d1813ad105ac79546cc","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ccedc92d90eb9904706b48d43657c71cf0a02600f59c4d1813ad105ac79546cc","first_computed_at":"2026-07-05T02:32:57.600365Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:32:57.600365Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"w+Hn46nTxAeXk08lXKMRjifSTe1MIRVYMKwo8iG0SzIJ0Lk4s5pWfC1AhgWrWxsrQazvHIpubT4SJ3KC9k0aCA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:32:57.600789Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.08997","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3376dce00fce04883738a99eb3ce1472037b002e58976b89fa9e21d9d2bdcad","sha256:14057ba921fb6badac593a456a2db70e0383544e17e671b63ca08da2e2c9225a"],"state_sha256":"82a82d1bcf383bab0a623118523517c88cb408183a328bf6f9f71de801c871ff"}