{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:I32IRK5W6YLKLCUB3GMRUWSECU","short_pith_number":"pith:I32IRK5W","canonical_record":{"source":{"id":"2505.18988","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-05-25T05:53:24Z","cross_cats_sorted":[],"title_canon_sha256":"17b574247ec25b1310cfe8d53c729c1c2eb705df9f4cb7a88d01f89500a1ce82","abstract_canon_sha256":"5f0923fd357c57371b781b37e63b414ce95fc2049b9da2c25926a92a130d5707"},"schema_version":"1.0"},"canonical_sha256":"46f488abb6f616a58a81d9991a5a44153ffc46057c2bb69b61fb6127d74a9d36","source":{"kind":"arxiv","id":"2505.18988","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.18988","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"arxiv_version","alias_value":"2505.18988v1","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.18988","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"pith_short_12","alias_value":"I32IRK5W6YLK","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"pith_short_16","alias_value":"I32IRK5W6YLKLCUB","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"pith_short_8","alias_value":"I32IRK5W","created_at":"2026-07-05T11:09:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:I32IRK5W6YLKLCUB3GMRUWSECU","target":"record","payload":{"canonical_record":{"source":{"id":"2505.18988","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-05-25T05:53:24Z","cross_cats_sorted":[],"title_canon_sha256":"17b574247ec25b1310cfe8d53c729c1c2eb705df9f4cb7a88d01f89500a1ce82","abstract_canon_sha256":"5f0923fd357c57371b781b37e63b414ce95fc2049b9da2c25926a92a130d5707"},"schema_version":"1.0"},"canonical_sha256":"46f488abb6f616a58a81d9991a5a44153ffc46057c2bb69b61fb6127d74a9d36","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:09:23.034412Z","signature_b64":"RuugYYE5acKFGk01GQ8bLZl7Pr8O6fLNEILOIg2KdGoDpgu39cw4O5UWVwnzrFz8nnG3PZ0hDqcF3W2Dc/t4CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"46f488abb6f616a58a81d9991a5a44153ffc46057c2bb69b61fb6127d74a9d36","last_reissued_at":"2026-07-05T11:09:23.033899Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:09:23.033899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.18988","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":"2026-07-05T11:09:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/AJxFNFtWh4ZqrA1fu7bn2UgpRLchMTIm5yPlR40Taww+exNx/HcBXnBd99tKI5No4m4yLICCVV5MXnfWu8YBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T12:34:44.353952Z"},"content_sha256":"f9bbfd3b2fc6149da4e658e71c028b0fbc4aa7d76ba769e38709cb37a8fc2f23","schema_version":"1.0","event_id":"sha256:f9bbfd3b2fc6149da4e658e71c028b0fbc4aa7d76ba769e38709cb37a8fc2f23"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:I32IRK5W6YLKLCUB3GMRUWSECU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"NTIRE 2025 Challenge on Video Quality Enhancement for Video Conferencing: Datasets, Methods and Results","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Henrik Turbell, Louis Florentin, others, Quan Zou, Radu Timofte, Sandeep Siddhartha, Varun Jain, Zongwei Wu","submitted_at":"2025-05-25T05:53:24Z","abstract_excerpt":"This paper presents a comprehensive review of the 1st Challenge on Video Quality Enhancement for Video Conferencing held at the NTIRE workshop at CVPR 2025, and highlights the problem statement, datasets, proposed solutions, and results. The aim of this challenge was to design a Video Quality Enhancement (VQE) model to enhance video quality in video conferencing scenarios by (a) improving lighting, (b) enhancing colors, (c) reducing noise, and (d) enhancing sharpness - giving a professional studio-like effect. Participants were given a differentiable Video Quality Assessment (VQA) model, train"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.18988","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/2505.18988/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":"2026-07-05T11:09:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WkruYZ2iJZ79S8C/ih15Eo/cxMZVFSqOWJQbt6slPixPSUFwmzWAlmG9QHtK6OujCfRp+dBN6M3JcKepxHpLDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-08T12:34:44.354503Z"},"content_sha256":"5f324269528abaee2d798c6ac0332d12f95f43acc83ef80e0435d2aa73baa522","schema_version":"1.0","event_id":"sha256:5f324269528abaee2d798c6ac0332d12f95f43acc83ef80e0435d2aa73baa522"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I32IRK5W6YLKLCUB3GMRUWSECU/bundle.json","state_url":"https://pith.science/pith/I32IRK5W6YLKLCUB3GMRUWSECU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I32IRK5W6YLKLCUB3GMRUWSECU/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":"2026-08-08T12:34:44Z","links":{"resolver":"https://pith.science/pith/I32IRK5W6YLKLCUB3GMRUWSECU","bundle":"https://pith.science/pith/I32IRK5W6YLKLCUB3GMRUWSECU/bundle.json","state":"https://pith.science/pith/I32IRK5W6YLKLCUB3GMRUWSECU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I32IRK5W6YLKLCUB3GMRUWSECU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:I32IRK5W6YLKLCUB3GMRUWSECU","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":"5f0923fd357c57371b781b37e63b414ce95fc2049b9da2c25926a92a130d5707","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-05-25T05:53:24Z","title_canon_sha256":"17b574247ec25b1310cfe8d53c729c1c2eb705df9f4cb7a88d01f89500a1ce82"},"schema_version":"1.0","source":{"id":"2505.18988","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.18988","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"arxiv_version","alias_value":"2505.18988v1","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.18988","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"pith_short_12","alias_value":"I32IRK5W6YLK","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"pith_short_16","alias_value":"I32IRK5W6YLKLCUB","created_at":"2026-07-05T11:09:23Z"},{"alias_kind":"pith_short_8","alias_value":"I32IRK5W","created_at":"2026-07-05T11:09:23Z"}],"graph_snapshots":[{"event_id":"sha256:5f324269528abaee2d798c6ac0332d12f95f43acc83ef80e0435d2aa73baa522","target":"graph","created_at":"2026-07-05T11:09:23Z","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/2505.18988/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents a comprehensive review of the 1st Challenge on Video Quality Enhancement for Video Conferencing held at the NTIRE workshop at CVPR 2025, and highlights the problem statement, datasets, proposed solutions, and results. The aim of this challenge was to design a Video Quality Enhancement (VQE) model to enhance video quality in video conferencing scenarios by (a) improving lighting, (b) enhancing colors, (c) reducing noise, and (d) enhancing sharpness - giving a professional studio-like effect. Participants were given a differentiable Video Quality Assessment (VQA) model, train","authors_text":"Henrik Turbell, Louis Florentin, others, Quan Zou, Radu Timofte, Sandeep Siddhartha, Varun Jain, Zongwei Wu","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-05-25T05:53:24Z","title":"NTIRE 2025 Challenge on Video Quality Enhancement for Video Conferencing: Datasets, Methods and Results"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.18988","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:f9bbfd3b2fc6149da4e658e71c028b0fbc4aa7d76ba769e38709cb37a8fc2f23","target":"record","created_at":"2026-07-05T11:09:23Z","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":"5f0923fd357c57371b781b37e63b414ce95fc2049b9da2c25926a92a130d5707","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2025-05-25T05:53:24Z","title_canon_sha256":"17b574247ec25b1310cfe8d53c729c1c2eb705df9f4cb7a88d01f89500a1ce82"},"schema_version":"1.0","source":{"id":"2505.18988","kind":"arxiv","version":1}},"canonical_sha256":"46f488abb6f616a58a81d9991a5a44153ffc46057c2bb69b61fb6127d74a9d36","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"46f488abb6f616a58a81d9991a5a44153ffc46057c2bb69b61fb6127d74a9d36","first_computed_at":"2026-07-05T11:09:23.033899Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:09:23.033899Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RuugYYE5acKFGk01GQ8bLZl7Pr8O6fLNEILOIg2KdGoDpgu39cw4O5UWVwnzrFz8nnG3PZ0hDqcF3W2Dc/t4CQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:09:23.034412Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.18988","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9bbfd3b2fc6149da4e658e71c028b0fbc4aa7d76ba769e38709cb37a8fc2f23","sha256:5f324269528abaee2d798c6ac0332d12f95f43acc83ef80e0435d2aa73baa522"],"state_sha256":"8c9d7d315dd41d7cd009b9bcef366f87c31d4b1d9fa1a71bab0889daae7bd8f0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4NMf4Oz3GM5EL6mvG9dmNnbzkf/ISv8ypL47FWluavpCc4qqix8WtuwAw8xlLWx4Qgkn3gncYQl4LlA67QUCDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-08T12:34:44.358642Z","bundle_sha256":"762e5f05777b648e0d67c0f07edaf48137740e405bcf71abd2b1eb378718c68d"}}