{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:6QUJQGWBVZGIPTYNWNBRXOYZFF","short_pith_number":"pith:6QUJQGWB","canonical_record":{"source":{"id":"2110.09992","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2021-10-19T14:04:16Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"90a027fb786b502ed92b1fd711f7c8776911735266c685b4c9e71975108b9d30","abstract_canon_sha256":"972998578d4b3c7809433297d0d108a7a8f89119a9b2f53a03d67e93ed338233"},"schema_version":"1.0"},"canonical_sha256":"f428981ac1ae4c87cf0db3431bbb1929501f96eab1dab4c39fb8b9f70911d74a","source":{"kind":"arxiv","id":"2110.09992","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.09992","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"2110.09992v2","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.09992","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"6QUJQGWBVZGI","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"pith_short_16","alias_value":"6QUJQGWBVZGIPTYN","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"pith_short_8","alias_value":"6QUJQGWB","created_at":"2026-07-05T05:45:25Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:6QUJQGWBVZGIPTYNWNBRXOYZFF","target":"record","payload":{"canonical_record":{"source":{"id":"2110.09992","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2021-10-19T14:04:16Z","cross_cats_sorted":["cs.CV"],"title_canon_sha256":"90a027fb786b502ed92b1fd711f7c8776911735266c685b4c9e71975108b9d30","abstract_canon_sha256":"972998578d4b3c7809433297d0d108a7a8f89119a9b2f53a03d67e93ed338233"},"schema_version":"1.0"},"canonical_sha256":"f428981ac1ae4c87cf0db3431bbb1929501f96eab1dab4c39fb8b9f70911d74a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:45:25.399885Z","signature_b64":"Le3EOV6bfwKGzNmBUnitielPpy7N0Fy6gVbWASnrCGmFmSy0ejYPBoER3QFntGcICo96O3E9n4V6KylVRsdqAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f428981ac1ae4c87cf0db3431bbb1929501f96eab1dab4c39fb8b9f70911d74a","last_reissued_at":"2026-07-05T05:45:25.399423Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:45:25.399423Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2110.09992","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u6Hr6zXsC6QedB60qOOyUkMM0vjoWyLo/yPAnjp3hfAeSXpLy1iaV/sKIVsOZDkLSkZAHhIOJnlTj6rGJYfZAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T20:18:11.255166Z"},"content_sha256":"3299517fe0ac3d95810b2caa1fbcf3941efcbb10049cab5083235c4a99e1c72f","schema_version":"1.0","event_id":"sha256:3299517fe0ac3d95810b2caa1fbcf3941efcbb10049cab5083235c4a99e1c72f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:6QUJQGWBVZGIPTYNWNBRXOYZFF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ERQA: Edge-Restoration Quality Assessment for Video Super-Resolution","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV"],"primary_cat":"eess.IV","authors_text":"Anastasia Antsiferova, Anastasia Kirillova, Dmitry Vatolin, Eugene Lyapustin","submitted_at":"2021-10-19T14:04:16Z","abstract_excerpt":"Despite the growing popularity of video super-resolution (VSR), there is still no good way to assess the quality of the restored details in upscaled frames. Some SR methods may produce the wrong digit or an entirely different face. Whether a method's results are trustworthy depends on how well it restores truthful details. Image super-resolution can use natural distributions to produce a high-resolution image that is only somewhat similar to the real one. VSR enables exploration of additional information in neighboring frames to restore details from the original scene. The ERQA metric, which w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.09992","kind":"arxiv","version":2},"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/2110.09992/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":"2026-07-05T05:45:25Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wk/A5C+AZe+Y2t31CsGJbqMnHsDXJHe9KvOL2orJwO2B/IH1gLE+8Ppx0AZoocgbjYCwvunhrwBt4LUihKnHBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T20:18:11.255656Z"},"content_sha256":"7a3745b8436b830f3c1db2cb7be03c0af0af1a9382dd994acb77016993c12f16","schema_version":"1.0","event_id":"sha256:7a3745b8436b830f3c1db2cb7be03c0af0af1a9382dd994acb77016993c12f16"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6QUJQGWBVZGIPTYNWNBRXOYZFF/bundle.json","state_url":"https://pith.science/pith/6QUJQGWBVZGIPTYNWNBRXOYZFF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6QUJQGWBVZGIPTYNWNBRXOYZFF/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":"2026-08-21T20:18:11Z","links":{"resolver":"https://pith.science/pith/6QUJQGWBVZGIPTYNWNBRXOYZFF","bundle":"https://pith.science/pith/6QUJQGWBVZGIPTYNWNBRXOYZFF/bundle.json","state":"https://pith.science/pith/6QUJQGWBVZGIPTYNWNBRXOYZFF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6QUJQGWBVZGIPTYNWNBRXOYZFF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:6QUJQGWBVZGIPTYNWNBRXOYZFF","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":"972998578d4b3c7809433297d0d108a7a8f89119a9b2f53a03d67e93ed338233","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2021-10-19T14:04:16Z","title_canon_sha256":"90a027fb786b502ed92b1fd711f7c8776911735266c685b4c9e71975108b9d30"},"schema_version":"1.0","source":{"id":"2110.09992","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2110.09992","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"arxiv_version","alias_value":"2110.09992v2","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2110.09992","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"pith_short_12","alias_value":"6QUJQGWBVZGI","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"pith_short_16","alias_value":"6QUJQGWBVZGIPTYN","created_at":"2026-07-05T05:45:25Z"},{"alias_kind":"pith_short_8","alias_value":"6QUJQGWB","created_at":"2026-07-05T05:45:25Z"}],"graph_snapshots":[{"event_id":"sha256:7a3745b8436b830f3c1db2cb7be03c0af0af1a9382dd994acb77016993c12f16","target":"graph","created_at":"2026-07-05T05:45:25Z","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/2110.09992/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Despite the growing popularity of video super-resolution (VSR), there is still no good way to assess the quality of the restored details in upscaled frames. Some SR methods may produce the wrong digit or an entirely different face. Whether a method's results are trustworthy depends on how well it restores truthful details. Image super-resolution can use natural distributions to produce a high-resolution image that is only somewhat similar to the real one. VSR enables exploration of additional information in neighboring frames to restore details from the original scene. The ERQA metric, which w","authors_text":"Anastasia Antsiferova, Anastasia Kirillova, Dmitry Vatolin, Eugene Lyapustin","cross_cats":["cs.CV"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2021-10-19T14:04:16Z","title":"ERQA: Edge-Restoration Quality Assessment for Video Super-Resolution"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2110.09992","kind":"arxiv","version":2},"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":"sha256:3299517fe0ac3d95810b2caa1fbcf3941efcbb10049cab5083235c4a99e1c72f","target":"record","created_at":"2026-07-05T05:45:25Z","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":"972998578d4b3c7809433297d0d108a7a8f89119a9b2f53a03d67e93ed338233","cross_cats_sorted":["cs.CV"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.IV","submitted_at":"2021-10-19T14:04:16Z","title_canon_sha256":"90a027fb786b502ed92b1fd711f7c8776911735266c685b4c9e71975108b9d30"},"schema_version":"1.0","source":{"id":"2110.09992","kind":"arxiv","version":2}},"canonical_sha256":"f428981ac1ae4c87cf0db3431bbb1929501f96eab1dab4c39fb8b9f70911d74a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f428981ac1ae4c87cf0db3431bbb1929501f96eab1dab4c39fb8b9f70911d74a","first_computed_at":"2026-07-05T05:45:25.399423Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:45:25.399423Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Le3EOV6bfwKGzNmBUnitielPpy7N0Fy6gVbWASnrCGmFmSy0ejYPBoER3QFntGcICo96O3E9n4V6KylVRsdqAg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:45:25.399885Z","signed_message":"canonical_sha256_bytes"},"source_id":"2110.09992","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3299517fe0ac3d95810b2caa1fbcf3941efcbb10049cab5083235c4a99e1c72f","sha256:7a3745b8436b830f3c1db2cb7be03c0af0af1a9382dd994acb77016993c12f16"],"state_sha256":"e457a5e5b8be13fac29209b517538cf7564c74fee7d412df6e483a67a6b69f8d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"UnlhKwFDdoBqjT7l9r4j6XTfq9dwi4zlAo60JayLSzMeKLKQYC/hVc5LVt4xpdKui2YxOh4yiV3+ObDMe9fABg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T20:18:11.259508Z","bundle_sha256":"94cee626946f3b7204746864a1a3aeb18c86be8ae47dd521c09330232101727e"}}