{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:GOZ53GLR2NGLVSGPPEZUPXNP6E","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":"f268e0e23ec5346c9509271bfac085376f258e90c34ecb93a57a15a0688bf912","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2018-02-16T10:20:34Z","title_canon_sha256":"1d4150976fd929ddcea7ccbf2e722c75cf5ab3388c4f454bedb624cb00149b7c"},"schema_version":"1.0","source":{"id":"1802.05884","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1802.05884","created_at":"2026-05-18T00:23:10Z"},{"alias_kind":"arxiv_version","alias_value":"1802.05884v1","created_at":"2026-05-18T00:23:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.05884","created_at":"2026-05-18T00:23:10Z"},{"alias_kind":"pith_short_12","alias_value":"GOZ53GLR2NGL","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_16","alias_value":"GOZ53GLR2NGLVSGP","created_at":"2026-05-18T12:32:25Z"},{"alias_kind":"pith_short_8","alias_value":"GOZ53GLR","created_at":"2026-05-18T12:32:25Z"}],"graph_snapshots":[{"event_id":"sha256:636e74b8d4a58549b4e53e4664d3bcb3696c1897d76ad366e1577d6c596a8132","target":"graph","created_at":"2026-05-18T00:23:10Z","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"},"paper":{"abstract_excerpt":"There is an increasing consumer demand for high bit-depth 4:4:4 HD video data playback due to its superior perceptual visual quality compared with standard 8-bit subsampled 4:2:0 video data. Due to vast file sizes and associated bitrates, it is desirable to compress raw high bit-depth 4:4:4 HD video sequences as much as possible without incurring a discernible decrease in visual quality. In this paper, we propose a Coding Block (CB)-level perceptual video coding technique for HEVC named Full Color Perceptual Quantization (FCPQ). FCPQ is designed to adjust the Quantization Parameter (QP) at the","authors_text":"Lee Prangnell, Miguel Hern\\'andez-Cabronero, Victor Sanchez","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2018-02-16T10:20:34Z","title":"Coding Block-Level Perceptual Video Coding for 4:4:4 Data in HEVC"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.05884","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":"sha256:0c1091c032ad3d7eeb748e5eb56f48a7036bf4f6dd66513e85a888a9834ed532","target":"record","created_at":"2026-05-18T00:23:10Z","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":"f268e0e23ec5346c9509271bfac085376f258e90c34ecb93a57a15a0688bf912","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.MM","submitted_at":"2018-02-16T10:20:34Z","title_canon_sha256":"1d4150976fd929ddcea7ccbf2e722c75cf5ab3388c4f454bedb624cb00149b7c"},"schema_version":"1.0","source":{"id":"1802.05884","kind":"arxiv","version":1}},"canonical_sha256":"33b3dd9971d34cbac8cf793347ddaff1278a87f981f1a6ecb331c22845461f5c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"33b3dd9971d34cbac8cf793347ddaff1278a87f981f1a6ecb331c22845461f5c","first_computed_at":"2026-05-18T00:23:10.652759Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:23:10.652759Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"mRwVZl4nX+SdA1n2fZuWq4QDbp9yheu69Nsbb2T+d0NYhywj7zE1Lp6SUTFldCrZn37HjEDNDUYavSD7QFJhAA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:23:10.653534Z","signed_message":"canonical_sha256_bytes"},"source_id":"1802.05884","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0c1091c032ad3d7eeb748e5eb56f48a7036bf4f6dd66513e85a888a9834ed532","sha256:636e74b8d4a58549b4e53e4664d3bcb3696c1897d76ad366e1577d6c596a8132"],"state_sha256":"e775af7cb54284fa076b1a253766a26ddd65212583b5ada2110f7cad23e5c8b1"}