{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:YZ3WNP3L6GJ7JPOKHFKCSTMC4X","short_pith_number":"pith:YZ3WNP3L","canonical_record":{"source":{"id":"2304.03285","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-06T17:59:58Z","cross_cats_sorted":[],"title_canon_sha256":"07df7a57125646601ecc6e9919f458fcbbc77656384118b64bfd9021a7faa358","abstract_canon_sha256":"5edd5a3fdeacc31d35fa6711dd321db1effe5101478168851f16fc7cfd3e01b7"},"schema_version":"1.0"},"canonical_sha256":"c67766bf6bf193f4bdca3954294d82e5f5f96c7f8d2a0f365efb12d193c2d4f6","source":{"kind":"arxiv","id":"2304.03285","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.03285","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"arxiv_version","alias_value":"2304.03285v1","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.03285","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"pith_short_12","alias_value":"YZ3WNP3L6GJ7","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"pith_short_16","alias_value":"YZ3WNP3L6GJ7JPOK","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"pith_short_8","alias_value":"YZ3WNP3L","created_at":"2026-07-05T05:58:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:YZ3WNP3L6GJ7JPOKHFKCSTMC4X","target":"record","payload":{"canonical_record":{"source":{"id":"2304.03285","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-06T17:59:58Z","cross_cats_sorted":[],"title_canon_sha256":"07df7a57125646601ecc6e9919f458fcbbc77656384118b64bfd9021a7faa358","abstract_canon_sha256":"5edd5a3fdeacc31d35fa6711dd321db1effe5101478168851f16fc7cfd3e01b7"},"schema_version":"1.0"},"canonical_sha256":"c67766bf6bf193f4bdca3954294d82e5f5f96c7f8d2a0f365efb12d193c2d4f6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:58:47.771652Z","signature_b64":"69C3duyBQYqqY0mEoILF/nQ4xKU76cDvojDEzYs0RiUaUfaCxgxbf723bc7fmXvsf0GdsmkmbDXFLX+jxL4pBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c67766bf6bf193f4bdca3954294d82e5f5f96c7f8d2a0f365efb12d193c2d4f6","last_reissued_at":"2026-07-05T05:58:47.771204Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:58:47.771204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.03285","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":"2026-07-05T05:58:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"duhr73IdVxMmtkjWXTYsTubjcxIEwuuHPXXiwRsHfiMPtTenmr4Q6vhvvnYucxpEn7OtIze4zoW2Cpeu0Un0Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T02:17:28.647716Z"},"content_sha256":"2f67e570510de7cea8be3546956aec256de8045cc99b1ca396acdb77cad85e1f","schema_version":"1.0","event_id":"sha256:2f67e570510de7cea8be3546956aec256de8045cc99b1ca396acdb77cad85e1f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:YZ3WNP3L6GJ7JPOKHFKCSTMC4X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"$\\text{DC}^2$: Dual-Camera Defocus Control by Learning to Refocus","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Abdullah Abuolaim, Abhishek Kar, Hadi AlZayer, Jia-Bin Huang, Leung Chun Chan, Yang Yang, Ying Chen Lou","submitted_at":"2023-04-06T17:59:58Z","abstract_excerpt":"Smartphone cameras today are increasingly approaching the versatility and quality of professional cameras through a combination of hardware and software advancements. However, fixed aperture remains a key limitation, preventing users from controlling the depth of field (DoF) of captured images. At the same time, many smartphones now have multiple cameras with different fixed apertures -- specifically, an ultra-wide camera with wider field of view and deeper DoF and a higher resolution primary camera with shallower DoF. In this work, we propose $\\text{DC}^2$, a system for defocus control for sy"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.03285","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/2304.03285/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":"2026-07-05T05:58:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DYloc3c8Tev9FOKijGXC+d3O+nI5ehx4cR5iiwVjaNkdWt5jNvwdZwDM0gCyRJ78WBttyQWDoXI2WS0UmG8tBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T02:17:28.648278Z"},"content_sha256":"416f396313a52281bdc25eac33844536e0388216cfa84eeeb632bec2b761dc1c","schema_version":"1.0","event_id":"sha256:416f396313a52281bdc25eac33844536e0388216cfa84eeeb632bec2b761dc1c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/YZ3WNP3L6GJ7JPOKHFKCSTMC4X/bundle.json","state_url":"https://pith.science/pith/YZ3WNP3L6GJ7JPOKHFKCSTMC4X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/YZ3WNP3L6GJ7JPOKHFKCSTMC4X/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":"2026-08-09T02:17:28Z","links":{"resolver":"https://pith.science/pith/YZ3WNP3L6GJ7JPOKHFKCSTMC4X","bundle":"https://pith.science/pith/YZ3WNP3L6GJ7JPOKHFKCSTMC4X/bundle.json","state":"https://pith.science/pith/YZ3WNP3L6GJ7JPOKHFKCSTMC4X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/YZ3WNP3L6GJ7JPOKHFKCSTMC4X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:YZ3WNP3L6GJ7JPOKHFKCSTMC4X","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":"5edd5a3fdeacc31d35fa6711dd321db1effe5101478168851f16fc7cfd3e01b7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-06T17:59:58Z","title_canon_sha256":"07df7a57125646601ecc6e9919f458fcbbc77656384118b64bfd9021a7faa358"},"schema_version":"1.0","source":{"id":"2304.03285","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.03285","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"arxiv_version","alias_value":"2304.03285v1","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.03285","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"pith_short_12","alias_value":"YZ3WNP3L6GJ7","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"pith_short_16","alias_value":"YZ3WNP3L6GJ7JPOK","created_at":"2026-07-05T05:58:47Z"},{"alias_kind":"pith_short_8","alias_value":"YZ3WNP3L","created_at":"2026-07-05T05:58:47Z"}],"graph_snapshots":[{"event_id":"sha256:416f396313a52281bdc25eac33844536e0388216cfa84eeeb632bec2b761dc1c","target":"graph","created_at":"2026-07-05T05:58:47Z","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/2304.03285/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Smartphone cameras today are increasingly approaching the versatility and quality of professional cameras through a combination of hardware and software advancements. However, fixed aperture remains a key limitation, preventing users from controlling the depth of field (DoF) of captured images. At the same time, many smartphones now have multiple cameras with different fixed apertures -- specifically, an ultra-wide camera with wider field of view and deeper DoF and a higher resolution primary camera with shallower DoF. In this work, we propose $\\text{DC}^2$, a system for defocus control for sy","authors_text":"Abdullah Abuolaim, Abhishek Kar, Hadi AlZayer, Jia-Bin Huang, Leung Chun Chan, Yang Yang, Ying Chen Lou","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-06T17:59:58Z","title":"$\\text{DC}^2$: Dual-Camera Defocus Control by Learning to Refocus"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.03285","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":"sha256:2f67e570510de7cea8be3546956aec256de8045cc99b1ca396acdb77cad85e1f","target":"record","created_at":"2026-07-05T05:58:47Z","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":"5edd5a3fdeacc31d35fa6711dd321db1effe5101478168851f16fc7cfd3e01b7","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2023-04-06T17:59:58Z","title_canon_sha256":"07df7a57125646601ecc6e9919f458fcbbc77656384118b64bfd9021a7faa358"},"schema_version":"1.0","source":{"id":"2304.03285","kind":"arxiv","version":1}},"canonical_sha256":"c67766bf6bf193f4bdca3954294d82e5f5f96c7f8d2a0f365efb12d193c2d4f6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"c67766bf6bf193f4bdca3954294d82e5f5f96c7f8d2a0f365efb12d193c2d4f6","first_computed_at":"2026-07-05T05:58:47.771204Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:58:47.771204Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"69C3duyBQYqqY0mEoILF/nQ4xKU76cDvojDEzYs0RiUaUfaCxgxbf723bc7fmXvsf0GdsmkmbDXFLX+jxL4pBA==","signature_status":"signed_v1","signed_at":"2026-07-05T05:58:47.771652Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.03285","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f67e570510de7cea8be3546956aec256de8045cc99b1ca396acdb77cad85e1f","sha256:416f396313a52281bdc25eac33844536e0388216cfa84eeeb632bec2b761dc1c"],"state_sha256":"319af24dd9e4d43818910c02bbc0d619775c8299bb731e82bf3bb4572adeff82"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9UPQjyhaMAkZ4jUa+9X5vqP5RiN+xFxIs4H8PZlIJ0r6rrZH877lwdFg9ZQ3rkBOvN5KiWF9Bj6SUp/4ULioCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T02:17:28.652948Z","bundle_sha256":"473842e12a74096a78db1b6406a43f8f0f9eaa96eaf109fa24d47b08e3a7fd3f"}}