{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:DEKIHITAFS74IUECKDNTH6Y2LM","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":"ba79be4aaf72d421e7721655e55ce672b1cd6b88ab24329287684ae732dffacb","cross_cats_sorted":["cs.CV","cs.CY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2018-03-22T15:54:43Z","title_canon_sha256":"56f5d013d57f3b0fa8ebcee461d98d3a4f2cd6b073986e08143119fb2a3d78aa"},"schema_version":"1.0","source":{"id":"1803.08420","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.08420","created_at":"2026-05-18T00:20:22Z"},{"alias_kind":"arxiv_version","alias_value":"1803.08420v1","created_at":"2026-05-18T00:20:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.08420","created_at":"2026-05-18T00:20:22Z"},{"alias_kind":"pith_short_12","alias_value":"DEKIHITAFS74","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"DEKIHITAFS74IUEC","created_at":"2026-05-18T12:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"DEKIHITA","created_at":"2026-05-18T12:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:545e37a23626b7fc5a6695c67fcaf726245be1be8409752c4008fab344e807d8","target":"graph","created_at":"2026-05-18T00:20:22Z","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":"The sizes of compressed images depend on their spatial resolution (number of pixels) and on their color resolution (number of color quantization levels). We introduce DaltonQuant, a new color quantization technique for image compression that cloud services can apply to images destined for a specific user with known color vision deficiencies. DaltonQuant improves compression in a user-specific but reversible manner thereby improving a user's network bandwidth and data storage efficiency. DaltonQuant quantizes image data to account for user-specific color perception anomalies, using a new method","authors_text":"Jose Cambronero, Martin Rinard, Phillip Stanley-Marbell","cross_cats":["cs.CV","cs.CY"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2018-03-22T15:54:43Z","title":"Incremental Color Quantization for Color-Vision-Deficient Observers Using Mobile Gaming Data"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.08420","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":"sha256:8883f24ea9e54ab257ed1f5cd9143aa4b4e2d277b24bd8ccb21b2384bd6b7cc5","target":"record","created_at":"2026-05-18T00:20:22Z","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":"ba79be4aaf72d421e7721655e55ce672b1cd6b88ab24329287684ae732dffacb","cross_cats_sorted":["cs.CV","cs.CY"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.HC","submitted_at":"2018-03-22T15:54:43Z","title_canon_sha256":"56f5d013d57f3b0fa8ebcee461d98d3a4f2cd6b073986e08143119fb2a3d78aa"},"schema_version":"1.0","source":{"id":"1803.08420","kind":"arxiv","version":1}},"canonical_sha256":"191483a2602cbfc4508250db33fb1a5b0d328689df400e3eaa70669d8114c50a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"191483a2602cbfc4508250db33fb1a5b0d328689df400e3eaa70669d8114c50a","first_computed_at":"2026-05-18T00:20:22.882492Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:20:22.882492Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tWmeDSfykDAatQUV4YHDkarJAs9YCmlQvPvpTNjfMOXiAloYk2CWq58jHhUgQ0eFEJ1LH83CGYQBccOm4SmEAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:20:22.882986Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.08420","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8883f24ea9e54ab257ed1f5cd9143aa4b4e2d277b24bd8ccb21b2384bd6b7cc5","sha256:545e37a23626b7fc5a6695c67fcaf726245be1be8409752c4008fab344e807d8"],"state_sha256":"c560332764d0793f30b5b6bc0134219852e12015209b1185c6b004c77385ae1b"}