{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:PKRJZH4EF2JMCN6SNSCLMMEKL4","short_pith_number":"pith:PKRJZH4E","canonical_record":{"source":{"id":"2203.02141","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-03-04T05:53:24Z","cross_cats_sorted":[],"title_canon_sha256":"1066486cd95aed5b0918950ffc2557ab5e597abd275382cf491f8ec4cb1f8e8d","abstract_canon_sha256":"00c5341adcfd8855ebf684b0b05ad90bee3526b7ed5c1a73b9cd99539b34d57a"},"schema_version":"1.0"},"canonical_sha256":"7aa29c9f842e92c137d26c84b6308a5f25457a3c9deaeef7db1ddef44f2672db","source":{"kind":"arxiv","id":"2203.02141","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.02141","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"2203.02141v1","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.02141","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"PKRJZH4EF2JM","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"pith_short_16","alias_value":"PKRJZH4EF2JMCN6S","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"pith_short_8","alias_value":"PKRJZH4E","created_at":"2026-07-05T04:02:01Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:PKRJZH4EF2JMCN6SNSCLMMEKL4","target":"record","payload":{"canonical_record":{"source":{"id":"2203.02141","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-03-04T05:53:24Z","cross_cats_sorted":[],"title_canon_sha256":"1066486cd95aed5b0918950ffc2557ab5e597abd275382cf491f8ec4cb1f8e8d","abstract_canon_sha256":"00c5341adcfd8855ebf684b0b05ad90bee3526b7ed5c1a73b9cd99539b34d57a"},"schema_version":"1.0"},"canonical_sha256":"7aa29c9f842e92c137d26c84b6308a5f25457a3c9deaeef7db1ddef44f2672db","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:02:01.472349Z","signature_b64":"1TlGgMvd9ZByotvTYFAD29htgP2o/PmmqbflQ8uU85V5wsOcqZYs0oeiA7LxoYX1/R+8Hr9zsYUPbN8MP4jYCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"7aa29c9f842e92c137d26c84b6308a5f25457a3c9deaeef7db1ddef44f2672db","last_reissued_at":"2026-07-05T04:02:01.471920Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:02:01.471920Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2203.02141","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":"2026-07-05T04:02:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eou5FDOWVh2XC1ARUCMpA2+gmbb2AqpeT77N92E1oRUPDX/tAXifg6O6SPHT3ydM+4Mo30LjgWo7mWybxeSWBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T11:49:59.619927Z"},"content_sha256":"3ec86600856a57978aa8eb9abc9919eb216c13392898ae047853bdc5c6d542f3","schema_version":"1.0","event_id":"sha256:3ec86600856a57978aa8eb9abc9919eb216c13392898ae047853bdc5c6d542f3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:PKRJZH4EF2JMCN6SNSCLMMEKL4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Weighted Simultaneous Algebra Reconstruction Technique (wSART) for Additive Light Field Synthesis","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GR","authors_text":"Chen Gao, Haifeng Li, Liang Xu, Linqi Dong, Xu Liu","submitted_at":"2022-03-04T05:53:24Z","abstract_excerpt":"We apply an iterative weighting scheme for additive light field synthesis. Unlike previous work optimizing additive light field evenly over viewpoints, we constrain the optimization to deliver a reconstructed light field of high image quality for viewpoints of large weight."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.02141","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/2203.02141/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":"2026-07-05T04:02:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tSzIsgR4F83j2ec4BbGz0x18C69tO6uJOjL2EMuAICZZgAowdMR9D7lTw0/QXsEdjiPraCGEZkWa1Cbk/N2xCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T11:49:59.620810Z"},"content_sha256":"ff61aac2a7dda33979ae711828533d12fe2a5e545cd0906f8116fbb63beda920","schema_version":"1.0","event_id":"sha256:ff61aac2a7dda33979ae711828533d12fe2a5e545cd0906f8116fbb63beda920"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PKRJZH4EF2JMCN6SNSCLMMEKL4/bundle.json","state_url":"https://pith.science/pith/PKRJZH4EF2JMCN6SNSCLMMEKL4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PKRJZH4EF2JMCN6SNSCLMMEKL4/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":"2026-08-09T11:49:59Z","links":{"resolver":"https://pith.science/pith/PKRJZH4EF2JMCN6SNSCLMMEKL4","bundle":"https://pith.science/pith/PKRJZH4EF2JMCN6SNSCLMMEKL4/bundle.json","state":"https://pith.science/pith/PKRJZH4EF2JMCN6SNSCLMMEKL4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PKRJZH4EF2JMCN6SNSCLMMEKL4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:PKRJZH4EF2JMCN6SNSCLMMEKL4","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":"00c5341adcfd8855ebf684b0b05ad90bee3526b7ed5c1a73b9cd99539b34d57a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-03-04T05:53:24Z","title_canon_sha256":"1066486cd95aed5b0918950ffc2557ab5e597abd275382cf491f8ec4cb1f8e8d"},"schema_version":"1.0","source":{"id":"2203.02141","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2203.02141","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"arxiv_version","alias_value":"2203.02141v1","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2203.02141","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"pith_short_12","alias_value":"PKRJZH4EF2JM","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"pith_short_16","alias_value":"PKRJZH4EF2JMCN6S","created_at":"2026-07-05T04:02:01Z"},{"alias_kind":"pith_short_8","alias_value":"PKRJZH4E","created_at":"2026-07-05T04:02:01Z"}],"graph_snapshots":[{"event_id":"sha256:ff61aac2a7dda33979ae711828533d12fe2a5e545cd0906f8116fbb63beda920","target":"graph","created_at":"2026-07-05T04:02:01Z","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/2203.02141/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We apply an iterative weighting scheme for additive light field synthesis. Unlike previous work optimizing additive light field evenly over viewpoints, we constrain the optimization to deliver a reconstructed light field of high image quality for viewpoints of large weight.","authors_text":"Chen Gao, Haifeng Li, Liang Xu, Linqi Dong, Xu Liu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-03-04T05:53:24Z","title":"Weighted Simultaneous Algebra Reconstruction Technique (wSART) for Additive Light Field Synthesis"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2203.02141","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":"sha256:3ec86600856a57978aa8eb9abc9919eb216c13392898ae047853bdc5c6d542f3","target":"record","created_at":"2026-07-05T04:02:01Z","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":"00c5341adcfd8855ebf684b0b05ad90bee3526b7ed5c1a73b9cd99539b34d57a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-03-04T05:53:24Z","title_canon_sha256":"1066486cd95aed5b0918950ffc2557ab5e597abd275382cf491f8ec4cb1f8e8d"},"schema_version":"1.0","source":{"id":"2203.02141","kind":"arxiv","version":1}},"canonical_sha256":"7aa29c9f842e92c137d26c84b6308a5f25457a3c9deaeef7db1ddef44f2672db","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"7aa29c9f842e92c137d26c84b6308a5f25457a3c9deaeef7db1ddef44f2672db","first_computed_at":"2026-07-05T04:02:01.471920Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:02:01.471920Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1TlGgMvd9ZByotvTYFAD29htgP2o/PmmqbflQ8uU85V5wsOcqZYs0oeiA7LxoYX1/R+8Hr9zsYUPbN8MP4jYCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:02:01.472349Z","signed_message":"canonical_sha256_bytes"},"source_id":"2203.02141","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3ec86600856a57978aa8eb9abc9919eb216c13392898ae047853bdc5c6d542f3","sha256:ff61aac2a7dda33979ae711828533d12fe2a5e545cd0906f8116fbb63beda920"],"state_sha256":"641bad05e5c8a7be754914d114e0904eb76d3b460edc9fa03352563a523fc7c0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qcZ69Xt7FEi0ngRyVS+HgW6/aqv1IU1LatYP5V7CFSJe4xHxwf/owUzt+mA/xFHyJ9Pc+X4xJNXQeid7LSK0CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T11:49:59.627981Z","bundle_sha256":"eb183f4c4d0bfab17a12cffe721bcc100f939e5f6c38551e1eededaa95e68750"}}