{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:HTRM5MPJCLOLWRCDPZ6OCHLS52","short_pith_number":"pith:HTRM5MPJ","canonical_record":{"source":{"id":"2011.00052","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2020-10-30T19:02:42Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"d51bbf0aa02592b8daa327290cd530d0d5491c61f194365665c6ffb4dbaa478c","abstract_canon_sha256":"32905bb31ad4a64b6b6cdae0089873fcdc0067982666937bc131581cdd5674dd"},"schema_version":"1.0"},"canonical_sha256":"3ce2ceb1e912dcbb44437e7ce11d72ee9d145359ee32c443a4e3534615e3cdaf","source":{"kind":"arxiv","id":"2011.00052","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.00052","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"arxiv_version","alias_value":"2011.00052v3","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.00052","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"pith_short_12","alias_value":"HTRM5MPJCLOL","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"pith_short_16","alias_value":"HTRM5MPJCLOLWRCD","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"pith_short_8","alias_value":"HTRM5MPJ","created_at":"2026-07-05T02:56:24Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:HTRM5MPJCLOLWRCDPZ6OCHLS52","target":"record","payload":{"canonical_record":{"source":{"id":"2011.00052","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2020-10-30T19:02:42Z","cross_cats_sorted":["eess.IV"],"title_canon_sha256":"d51bbf0aa02592b8daa327290cd530d0d5491c61f194365665c6ffb4dbaa478c","abstract_canon_sha256":"32905bb31ad4a64b6b6cdae0089873fcdc0067982666937bc131581cdd5674dd"},"schema_version":"1.0"},"canonical_sha256":"3ce2ceb1e912dcbb44437e7ce11d72ee9d145359ee32c443a4e3534615e3cdaf","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:56:24.200066Z","signature_b64":"EpsBhn+hKjGiFe5+o7W2PzyqOl2aWRLNvY2LnorYs7WPJewWc0V5qbn2WNbm4HrJPUHd4qjbcBBHBIAeLKdmAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3ce2ceb1e912dcbb44437e7ce11d72ee9d145359ee32c443a4e3534615e3cdaf","last_reissued_at":"2026-07-05T02:56:24.199631Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:56:24.199631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2011.00052","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":"2026-07-05T02:56:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ac/n5fmq6WiGSvPQ1q9ksBXLT7Ui+vwzZC499UlGxG0NuOJ5pxj8ui3mgBlDYxhZKvtAaK2h86EEZU+vjs1WDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:22:17.777026Z"},"content_sha256":"40280a7ad777cd7c6089ed6ee603ba23e6d6757830544e79cea2c3cf4e15a015","schema_version":"1.0","event_id":"sha256:40280a7ad777cd7c6089ed6ee603ba23e6d6757830544e79cea2c3cf4e15a015"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:HTRM5MPJCLOLWRCDPZ6OCHLS52","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"(Un)Masked COVID-19 Trends from Social Media","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["eess.IV"],"primary_cat":"cs.CV","authors_text":"Asmit Kumar Singh, Divyanshu Sharma, Paras Mehan, Ponnurangam Kumaraguru, Rohan Pandey, Tavpritesh Sethi","submitted_at":"2020-10-30T19:02:42Z","abstract_excerpt":"Wearing masks is a useful protection method against COVID-19, which has caused widespread economic and social impact worldwide. Across the globe, governments have put mandates for the use of face masks, which have received both positive and negative reaction. Online social media provides an exciting platform to study the use of masks and analyze underlying mask-wearing patterns. In this article, we analyze 2.04 million social media images for six US cities. An increase in masks worn in images is seen as the COVID-19 cases rose, particularly when their respective states imposed strict regulatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.00052","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/2011.00052/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":"2026-07-05T02:56:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lemkuMG/aIMAB3QGYbSaKsDBWBs8a3BETVvbqnJr593Svq1hHYhsZ4NNBdQRvlBjc7VywexZiY78ZSgNxoMkCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T13:22:17.777435Z"},"content_sha256":"761cdda88ddac0b68e9446b5e89bef2a7b592257ec851a0ddf8b3d95487f92a6","schema_version":"1.0","event_id":"sha256:761cdda88ddac0b68e9446b5e89bef2a7b592257ec851a0ddf8b3d95487f92a6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HTRM5MPJCLOLWRCDPZ6OCHLS52/bundle.json","state_url":"https://pith.science/pith/HTRM5MPJCLOLWRCDPZ6OCHLS52/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HTRM5MPJCLOLWRCDPZ6OCHLS52/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":"2026-07-07T13:22:17Z","links":{"resolver":"https://pith.science/pith/HTRM5MPJCLOLWRCDPZ6OCHLS52","bundle":"https://pith.science/pith/HTRM5MPJCLOLWRCDPZ6OCHLS52/bundle.json","state":"https://pith.science/pith/HTRM5MPJCLOLWRCDPZ6OCHLS52/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HTRM5MPJCLOLWRCDPZ6OCHLS52/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:HTRM5MPJCLOLWRCDPZ6OCHLS52","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":"32905bb31ad4a64b6b6cdae0089873fcdc0067982666937bc131581cdd5674dd","cross_cats_sorted":["eess.IV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2020-10-30T19:02:42Z","title_canon_sha256":"d51bbf0aa02592b8daa327290cd530d0d5491c61f194365665c6ffb4dbaa478c"},"schema_version":"1.0","source":{"id":"2011.00052","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2011.00052","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"arxiv_version","alias_value":"2011.00052v3","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2011.00052","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"pith_short_12","alias_value":"HTRM5MPJCLOL","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"pith_short_16","alias_value":"HTRM5MPJCLOLWRCD","created_at":"2026-07-05T02:56:24Z"},{"alias_kind":"pith_short_8","alias_value":"HTRM5MPJ","created_at":"2026-07-05T02:56:24Z"}],"graph_snapshots":[{"event_id":"sha256:761cdda88ddac0b68e9446b5e89bef2a7b592257ec851a0ddf8b3d95487f92a6","target":"graph","created_at":"2026-07-05T02:56:24Z","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/2011.00052/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Wearing masks is a useful protection method against COVID-19, which has caused widespread economic and social impact worldwide. Across the globe, governments have put mandates for the use of face masks, which have received both positive and negative reaction. Online social media provides an exciting platform to study the use of masks and analyze underlying mask-wearing patterns. In this article, we analyze 2.04 million social media images for six US cities. An increase in masks worn in images is seen as the COVID-19 cases rose, particularly when their respective states imposed strict regulatio","authors_text":"Asmit Kumar Singh, Divyanshu Sharma, Paras Mehan, Ponnurangam Kumaraguru, Rohan Pandey, Tavpritesh Sethi","cross_cats":["eess.IV"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2020-10-30T19:02:42Z","title":"(Un)Masked COVID-19 Trends from Social Media"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2011.00052","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":"sha256:40280a7ad777cd7c6089ed6ee603ba23e6d6757830544e79cea2c3cf4e15a015","target":"record","created_at":"2026-07-05T02:56:24Z","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":"32905bb31ad4a64b6b6cdae0089873fcdc0067982666937bc131581cdd5674dd","cross_cats_sorted":["eess.IV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2020-10-30T19:02:42Z","title_canon_sha256":"d51bbf0aa02592b8daa327290cd530d0d5491c61f194365665c6ffb4dbaa478c"},"schema_version":"1.0","source":{"id":"2011.00052","kind":"arxiv","version":3}},"canonical_sha256":"3ce2ceb1e912dcbb44437e7ce11d72ee9d145359ee32c443a4e3534615e3cdaf","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ce2ceb1e912dcbb44437e7ce11d72ee9d145359ee32c443a4e3534615e3cdaf","first_computed_at":"2026-07-05T02:56:24.199631Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:56:24.199631Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"EpsBhn+hKjGiFe5+o7W2PzyqOl2aWRLNvY2LnorYs7WPJewWc0V5qbn2WNbm4HrJPUHd4qjbcBBHBIAeLKdmAQ==","signature_status":"signed_v1","signed_at":"2026-07-05T02:56:24.200066Z","signed_message":"canonical_sha256_bytes"},"source_id":"2011.00052","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:40280a7ad777cd7c6089ed6ee603ba23e6d6757830544e79cea2c3cf4e15a015","sha256:761cdda88ddac0b68e9446b5e89bef2a7b592257ec851a0ddf8b3d95487f92a6"],"state_sha256":"fd7bc59e88aa7b7e9974bf7e7619b6f171f4a92312dde92081a539f230c407d1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UV+yjA2fLK6aJEppUd/yQ1xd/j90Zn0BbmGqxJ/BceL0TETL+klEQ59DGjo6f7W9CC5zWPaXfSSlHG/dYZUgBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T13:22:17.779488Z","bundle_sha256":"3d1a4b4ea1f451547b3d04cfbdf32e84bc1d68a818ad35776e33df89e2835ea6"}}