{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:FK6EA6TJMXZULCRGUPDLF3JTVX","short_pith_number":"pith:FK6EA6TJ","canonical_record":{"source":{"id":"2401.03220","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-06T14:06:29Z","cross_cats_sorted":[],"title_canon_sha256":"4b22f3c15a981c4dc86a3dd195f2f34c1082a6bf1ad72e8553745ca3df00f17a","abstract_canon_sha256":"3f7bcdbc3c5736329a0b10fa013b015fa1f9dce48c0878f91593c73844e7c434"},"schema_version":"1.0"},"canonical_sha256":"2abc407a6965f3458a26a3c6b2ed33adc45e3398d97380f38da265535fa61eeb","source":{"kind":"arxiv","id":"2401.03220","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.03220","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"arxiv_version","alias_value":"2401.03220v1","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.03220","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"pith_short_12","alias_value":"FK6EA6TJMXZU","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"pith_short_16","alias_value":"FK6EA6TJMXZULCRG","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"pith_short_8","alias_value":"FK6EA6TJ","created_at":"2026-07-05T07:31:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:FK6EA6TJMXZULCRGUPDLF3JTVX","target":"record","payload":{"canonical_record":{"source":{"id":"2401.03220","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-06T14:06:29Z","cross_cats_sorted":[],"title_canon_sha256":"4b22f3c15a981c4dc86a3dd195f2f34c1082a6bf1ad72e8553745ca3df00f17a","abstract_canon_sha256":"3f7bcdbc3c5736329a0b10fa013b015fa1f9dce48c0878f91593c73844e7c434"},"schema_version":"1.0"},"canonical_sha256":"2abc407a6965f3458a26a3c6b2ed33adc45e3398d97380f38da265535fa61eeb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T07:31:04.199293Z","signature_b64":"spR/swcLGmn0uPzawI5omEyRXpCd5AG3mU3Wx2L5SncKi5IhKrDSUzsMdvp5TPc9uHtGwnJjHsTNInb1+iq3DA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2abc407a6965f3458a26a3c6b2ed33adc45e3398d97380f38da265535fa61eeb","last_reissued_at":"2026-07-05T07:31:04.198835Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T07:31:04.198835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2401.03220","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":"2026-07-05T07:31:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"R76dO+jtRpPtQyoVPiHze0aWRP1DZdgwmvAKBIHxd7bHWA2HM0hbmsp0RiTP8ddzLcDgr0ozdM84f3bnXg2MBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:44:20.113897Z"},"content_sha256":"f9e5437e74aa27a51bc6248ad4d513cf36efcee37cbe1a8b69b43081bfa21ed0","schema_version":"1.0","event_id":"sha256:f9e5437e74aa27a51bc6248ad4d513cf36efcee37cbe1a8b69b43081bfa21ed0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:FK6EA6TJMXZULCRGUPDLF3JTVX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MetaISP -- Exploiting Global Scene Structure for Accurate Multi-Device Color Rendition","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Matheus Souza, Wolfgang Heidrich","submitted_at":"2024-01-06T14:06:29Z","abstract_excerpt":"Image signal processors (ISPs) are historically grown legacy software systems for reconstructing color images from noisy raw sensor measurements. Each smartphone manufacturer has developed its ISPs with its own characteristic heuristics for improving the color rendition, for example, skin tones and other visually essential colors. The recent interest in replacing the historically grown ISP systems with deep-learned pipelines to match DSLR's image quality improves structural features in the image. However, these works ignore the superior color processing based on semantic scene analysis that di"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.03220","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/2401.03220/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":"2026-07-05T07:31:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BToxPb5KM0PTwffM+XWVe92qS8mAvVVA7bOaU4kQ/vU4KO+FQVmkT3goUeU2MshlIUcvn1KuTU52T1n3/IlCDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-04T15:44:20.114506Z"},"content_sha256":"b2cb23da8ad523f53afc53f8a9403334165526621864f83d0b0834767786c6e3","schema_version":"1.0","event_id":"sha256:b2cb23da8ad523f53afc53f8a9403334165526621864f83d0b0834767786c6e3"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FK6EA6TJMXZULCRGUPDLF3JTVX/bundle.json","state_url":"https://pith.science/pith/FK6EA6TJMXZULCRGUPDLF3JTVX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FK6EA6TJMXZULCRGUPDLF3JTVX/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":"2026-08-04T15:44:20Z","links":{"resolver":"https://pith.science/pith/FK6EA6TJMXZULCRGUPDLF3JTVX","bundle":"https://pith.science/pith/FK6EA6TJMXZULCRGUPDLF3JTVX/bundle.json","state":"https://pith.science/pith/FK6EA6TJMXZULCRGUPDLF3JTVX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FK6EA6TJMXZULCRGUPDLF3JTVX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:FK6EA6TJMXZULCRGUPDLF3JTVX","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":"3f7bcdbc3c5736329a0b10fa013b015fa1f9dce48c0878f91593c73844e7c434","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-06T14:06:29Z","title_canon_sha256":"4b22f3c15a981c4dc86a3dd195f2f34c1082a6bf1ad72e8553745ca3df00f17a"},"schema_version":"1.0","source":{"id":"2401.03220","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2401.03220","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"arxiv_version","alias_value":"2401.03220v1","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2401.03220","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"pith_short_12","alias_value":"FK6EA6TJMXZU","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"pith_short_16","alias_value":"FK6EA6TJMXZULCRG","created_at":"2026-07-05T07:31:04Z"},{"alias_kind":"pith_short_8","alias_value":"FK6EA6TJ","created_at":"2026-07-05T07:31:04Z"}],"graph_snapshots":[{"event_id":"sha256:b2cb23da8ad523f53afc53f8a9403334165526621864f83d0b0834767786c6e3","target":"graph","created_at":"2026-07-05T07:31:04Z","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/2401.03220/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Image signal processors (ISPs) are historically grown legacy software systems for reconstructing color images from noisy raw sensor measurements. Each smartphone manufacturer has developed its ISPs with its own characteristic heuristics for improving the color rendition, for example, skin tones and other visually essential colors. The recent interest in replacing the historically grown ISP systems with deep-learned pipelines to match DSLR's image quality improves structural features in the image. However, these works ignore the superior color processing based on semantic scene analysis that di","authors_text":"Matheus Souza, Wolfgang Heidrich","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-06T14:06:29Z","title":"MetaISP -- Exploiting Global Scene Structure for Accurate Multi-Device Color Rendition"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.03220","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:f9e5437e74aa27a51bc6248ad4d513cf36efcee37cbe1a8b69b43081bfa21ed0","target":"record","created_at":"2026-07-05T07:31:04Z","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":"3f7bcdbc3c5736329a0b10fa013b015fa1f9dce48c0878f91593c73844e7c434","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2024-01-06T14:06:29Z","title_canon_sha256":"4b22f3c15a981c4dc86a3dd195f2f34c1082a6bf1ad72e8553745ca3df00f17a"},"schema_version":"1.0","source":{"id":"2401.03220","kind":"arxiv","version":1}},"canonical_sha256":"2abc407a6965f3458a26a3c6b2ed33adc45e3398d97380f38da265535fa61eeb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2abc407a6965f3458a26a3c6b2ed33adc45e3398d97380f38da265535fa61eeb","first_computed_at":"2026-07-05T07:31:04.198835Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T07:31:04.198835Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"spR/swcLGmn0uPzawI5omEyRXpCd5AG3mU3Wx2L5SncKi5IhKrDSUzsMdvp5TPc9uHtGwnJjHsTNInb1+iq3DA==","signature_status":"signed_v1","signed_at":"2026-07-05T07:31:04.199293Z","signed_message":"canonical_sha256_bytes"},"source_id":"2401.03220","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f9e5437e74aa27a51bc6248ad4d513cf36efcee37cbe1a8b69b43081bfa21ed0","sha256:b2cb23da8ad523f53afc53f8a9403334165526621864f83d0b0834767786c6e3"],"state_sha256":"12e682064df14b3c661fb101335e39d4f1e5a25738efcc247a0b8ce13ea579c2"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"trpCPPpvFwUWFLBoC7yiUnBgnR9m2kgPvII4x5niQMNdthnSqL6c81HVQz2+102k8L8nd5CdCCy/vRDX77ZyBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-04T15:44:20.119679Z","bundle_sha256":"6ae316c7de180416623716517df01e2cc49e85c60d4b74e99b449ef1ece8d869"}}