{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:NFCUTXPPAMSPAJDUTOPO3KCS6H","short_pith_number":"pith:NFCUTXPP","canonical_record":{"source":{"id":"2104.00779","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SI","submitted_at":"2021-04-01T21:50:19Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"ad9442d5379e0c10883acd4c88079fc4f6f61b104ca5f0e0ac27d38f7901f0cf","abstract_canon_sha256":"d5a4da9b5463d66d22111907224b35f629868442bdc1b89c2437ba43ae7cf64b"},"schema_version":"1.0"},"canonical_sha256":"694549ddef0324f024749b9eeda852f1ed16f67f96f808e35c3233730f92ba34","source":{"kind":"arxiv","id":"2104.00779","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.00779","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"arxiv_version","alias_value":"2104.00779v1","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.00779","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"pith_short_12","alias_value":"NFCUTXPPAMSP","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"NFCUTXPPAMSPAJDU","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"NFCUTXPP","created_at":"2026-07-05T02:28:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:NFCUTXPPAMSPAJDUTOPO3KCS6H","target":"record","payload":{"canonical_record":{"source":{"id":"2104.00779","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SI","submitted_at":"2021-04-01T21:50:19Z","cross_cats_sorted":["cs.CR"],"title_canon_sha256":"ad9442d5379e0c10883acd4c88079fc4f6f61b104ca5f0e0ac27d38f7901f0cf","abstract_canon_sha256":"d5a4da9b5463d66d22111907224b35f629868442bdc1b89c2437ba43ae7cf64b"},"schema_version":"1.0"},"canonical_sha256":"694549ddef0324f024749b9eeda852f1ed16f67f96f808e35c3233730f92ba34","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:28:35.794809Z","signature_b64":"npeMwmhbNykBZFYIGA5d5oLqIx7/ideI4aLJzyG9ZzbkbALIDVuZHqOZbi2uQDYfkqQ8LXMN+OfenvMdAfYEAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"694549ddef0324f024749b9eeda852f1ed16f67f96f808e35c3233730f92ba34","last_reissued_at":"2026-07-05T02:28:35.794463Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:28:35.794463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2104.00779","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":"2026-07-05T02:28:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"AC2XzirjluxWhsQ1RvhQ287B/iZe4Dtm8Lkx+HbQk7iPoRSFv4ZWAbYb9B6XvNba7oqH7XBfEFu+xQHDfSNtDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T20:16:32.919888Z"},"content_sha256":"5498c65df2a047f93c0062248aca6783a359c5e68f34cb0d8bb8074fbb358464","schema_version":"1.0","event_id":"sha256:5498c65df2a047f93c0062248aca6783a359c5e68f34cb0d8bb8074fbb358464"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:NFCUTXPPAMSPAJDUTOPO3KCS6H","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Misinformation Warning Labels: Twitter's Soft Moderation Effects on COVID-19 Vaccine Belief Echoes","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.CR"],"primary_cat":"cs.SI","authors_text":"Emma Pieroni, Filipo Sharevski, Peter Jachim, Raniem Alsaadi","submitted_at":"2021-04-01T21:50:19Z","abstract_excerpt":"Twitter, prompted by the rapid spread of alternative narratives, started actively warning users about the spread of COVID-19 misinformation. This form of soft moderation comes in two forms: as a warning cover before the Tweet is displayed to the user and as a warning tag below the Tweet. This study investigates how each of the soft moderation forms affects the perceived accuracy of COVID-19 vaccine misinformation on Twitter. The results suggest that the warning covers work, but not the tags, in reducing the perception of accuracy of COVID-19 vaccine misinformation on Twitter. \"Belief echoes\" d"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.00779","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/2104.00779/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":"2026-07-05T02:28:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UjZksh9BXQhNgBwC1NO0vPyZmubwtw5A0lbS59CasjYQnOsCQMf9/nn4F31F9EqRpTnAmpOSYWkrpQ2G5zu0Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-22T20:16:32.920385Z"},"content_sha256":"be4bb240bebeb1c98dc990d1ef7c3080082552fe62d305f8c5bddaadec32a54f","schema_version":"1.0","event_id":"sha256:be4bb240bebeb1c98dc990d1ef7c3080082552fe62d305f8c5bddaadec32a54f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NFCUTXPPAMSPAJDUTOPO3KCS6H/bundle.json","state_url":"https://pith.science/pith/NFCUTXPPAMSPAJDUTOPO3KCS6H/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NFCUTXPPAMSPAJDUTOPO3KCS6H/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":"2026-08-22T20:16:32Z","links":{"resolver":"https://pith.science/pith/NFCUTXPPAMSPAJDUTOPO3KCS6H","bundle":"https://pith.science/pith/NFCUTXPPAMSPAJDUTOPO3KCS6H/bundle.json","state":"https://pith.science/pith/NFCUTXPPAMSPAJDUTOPO3KCS6H/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NFCUTXPPAMSPAJDUTOPO3KCS6H/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:NFCUTXPPAMSPAJDUTOPO3KCS6H","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":"d5a4da9b5463d66d22111907224b35f629868442bdc1b89c2437ba43ae7cf64b","cross_cats_sorted":["cs.CR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SI","submitted_at":"2021-04-01T21:50:19Z","title_canon_sha256":"ad9442d5379e0c10883acd4c88079fc4f6f61b104ca5f0e0ac27d38f7901f0cf"},"schema_version":"1.0","source":{"id":"2104.00779","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2104.00779","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"arxiv_version","alias_value":"2104.00779v1","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2104.00779","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"pith_short_12","alias_value":"NFCUTXPPAMSP","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"pith_short_16","alias_value":"NFCUTXPPAMSPAJDU","created_at":"2026-07-05T02:28:35Z"},{"alias_kind":"pith_short_8","alias_value":"NFCUTXPP","created_at":"2026-07-05T02:28:35Z"}],"graph_snapshots":[{"event_id":"sha256:be4bb240bebeb1c98dc990d1ef7c3080082552fe62d305f8c5bddaadec32a54f","target":"graph","created_at":"2026-07-05T02:28:35Z","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/2104.00779/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Twitter, prompted by the rapid spread of alternative narratives, started actively warning users about the spread of COVID-19 misinformation. This form of soft moderation comes in two forms: as a warning cover before the Tweet is displayed to the user and as a warning tag below the Tweet. This study investigates how each of the soft moderation forms affects the perceived accuracy of COVID-19 vaccine misinformation on Twitter. The results suggest that the warning covers work, but not the tags, in reducing the perception of accuracy of COVID-19 vaccine misinformation on Twitter. \"Belief echoes\" d","authors_text":"Emma Pieroni, Filipo Sharevski, Peter Jachim, Raniem Alsaadi","cross_cats":["cs.CR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SI","submitted_at":"2021-04-01T21:50:19Z","title":"Misinformation Warning Labels: Twitter's Soft Moderation Effects on COVID-19 Vaccine Belief Echoes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2104.00779","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":"sha256:5498c65df2a047f93c0062248aca6783a359c5e68f34cb0d8bb8074fbb358464","target":"record","created_at":"2026-07-05T02:28:35Z","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":"d5a4da9b5463d66d22111907224b35f629868442bdc1b89c2437ba43ae7cf64b","cross_cats_sorted":["cs.CR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.SI","submitted_at":"2021-04-01T21:50:19Z","title_canon_sha256":"ad9442d5379e0c10883acd4c88079fc4f6f61b104ca5f0e0ac27d38f7901f0cf"},"schema_version":"1.0","source":{"id":"2104.00779","kind":"arxiv","version":1}},"canonical_sha256":"694549ddef0324f024749b9eeda852f1ed16f67f96f808e35c3233730f92ba34","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"694549ddef0324f024749b9eeda852f1ed16f67f96f808e35c3233730f92ba34","first_computed_at":"2026-07-05T02:28:35.794463Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:28:35.794463Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"npeMwmhbNykBZFYIGA5d5oLqIx7/ideI4aLJzyG9ZzbkbALIDVuZHqOZbi2uQDYfkqQ8LXMN+OfenvMdAfYEAA==","signature_status":"signed_v1","signed_at":"2026-07-05T02:28:35.794809Z","signed_message":"canonical_sha256_bytes"},"source_id":"2104.00779","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5498c65df2a047f93c0062248aca6783a359c5e68f34cb0d8bb8074fbb358464","sha256:be4bb240bebeb1c98dc990d1ef7c3080082552fe62d305f8c5bddaadec32a54f"],"state_sha256":"7ab33abec6c5ee16def31a6038c4909b368fe84cb9931178fc42d2837b3ebfe7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"asTrPmVX/MiR31j7vjLeBSMYrKVSgQoU28ay/JuTde31BLGM+rH0X5rB6uPw6F+YlsNeyvXupXpWNoqIYZibAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-22T20:16:32.924087Z","bundle_sha256":"3a56caaeacba1b04f065fe131f579f2b7855c49a29663746a98b9c6ae25d6fbb"}}