{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:K3C4JHUUNYL3UK5GO5ETHBX6VX","short_pith_number":"pith:K3C4JHUU","canonical_record":{"source":{"id":"2207.07684","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-07-15T18:05:46Z","cross_cats_sorted":[],"title_canon_sha256":"0e05309330cfa0437e4a54cfcc31605994147da29bc0ffa79dbc0e769ee50734","abstract_canon_sha256":"cec0a220f6a8c2505779233f8ae9e212209219f8b1db517f68d2a503b7540f93"},"schema_version":"1.0"},"canonical_sha256":"56c5c49e946e17ba2ba677493386feade90b31c6204a9788fc84a43d6aa24339","source":{"kind":"arxiv","id":"2207.07684","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.07684","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"arxiv_version","alias_value":"2207.07684v1","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.07684","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"pith_short_12","alias_value":"K3C4JHUUNYL3","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"pith_short_16","alias_value":"K3C4JHUUNYL3UK5G","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"pith_short_8","alias_value":"K3C4JHUU","created_at":"2026-07-05T04:40:35Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:K3C4JHUUNYL3UK5GO5ETHBX6VX","target":"record","payload":{"canonical_record":{"source":{"id":"2207.07684","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-07-15T18:05:46Z","cross_cats_sorted":[],"title_canon_sha256":"0e05309330cfa0437e4a54cfcc31605994147da29bc0ffa79dbc0e769ee50734","abstract_canon_sha256":"cec0a220f6a8c2505779233f8ae9e212209219f8b1db517f68d2a503b7540f93"},"schema_version":"1.0"},"canonical_sha256":"56c5c49e946e17ba2ba677493386feade90b31c6204a9788fc84a43d6aa24339","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:40:35.780273Z","signature_b64":"aSHKbQ2Au1+bZvFulsX2R0aoYhtpytKNrxI8Gk0xhNxkXMIfpT+IIOIYJV8gsp+MefKBbp9156P2CcYMUrrlAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"56c5c49e946e17ba2ba677493386feade90b31c6204a9788fc84a43d6aa24339","last_reissued_at":"2026-07-05T04:40:35.779737Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:40:35.779737Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2207.07684","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":"2026-07-05T04:40:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ef5B/1uKhS1yHAiQPsDVUmixXeQhKnq1weHGJJhixI0as6RD/TueWoYmrW+lRd0gttfLiGQeYi7yJriyuhzcBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T02:05:37.843749Z"},"content_sha256":"bede0fb57142792defba98aa8ce25c2439cdb5ebb07eeb5ba6e5057683c0fae1","schema_version":"1.0","event_id":"sha256:bede0fb57142792defba98aa8ce25c2439cdb5ebb07eeb5ba6e5057683c0fae1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:K3C4JHUUNYL3UK5GO5ETHBX6VX","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Node Graph Optimization Using Differentiable Proxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GR","authors_text":"Holly Rushmeier, Milo\\v{s} Ha\\v{s}an, Paul Guerrero, Valentin Deschaintre, Yiwei Hu","submitted_at":"2022-07-15T18:05:46Z","abstract_excerpt":"Graph-based procedural materials are ubiquitous in content production industries. Procedural models allow the creation of photorealistic materials with parametric control for flexible editing of appearance. However, designing a specific material is a time-consuming process in terms of building a model and fine-tuning parameters. Previous work [Hu et al. 2022; Shi et al. 2020] introduced material graph optimization frameworks for matching target material samples. However, these previous methods were limited to optimizing differentiable functions in the graphs. In this paper, we propose a fully "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.07684","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/2207.07684/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":"2026-07-05T04:40:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"b7wcRsEZyGejfnsJAg1LSCbQlPiSmSUZNcAsZkAaJ8ZDSld1rXdnF1XAcJXdtFj8XvNzKpqmq9OK7Oiwq1wVDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T02:05:37.844415Z"},"content_sha256":"586fcfdd76242e52f2a83afb0e8a8b5c1940cb529871ccd6282f3927ad606a0f","schema_version":"1.0","event_id":"sha256:586fcfdd76242e52f2a83afb0e8a8b5c1940cb529871ccd6282f3927ad606a0f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/K3C4JHUUNYL3UK5GO5ETHBX6VX/bundle.json","state_url":"https://pith.science/pith/K3C4JHUUNYL3UK5GO5ETHBX6VX/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/K3C4JHUUNYL3UK5GO5ETHBX6VX/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":"2026-08-14T02:05:37Z","links":{"resolver":"https://pith.science/pith/K3C4JHUUNYL3UK5GO5ETHBX6VX","bundle":"https://pith.science/pith/K3C4JHUUNYL3UK5GO5ETHBX6VX/bundle.json","state":"https://pith.science/pith/K3C4JHUUNYL3UK5GO5ETHBX6VX/state.json","well_known_bundle":"https://pith.science/.well-known/pith/K3C4JHUUNYL3UK5GO5ETHBX6VX/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:K3C4JHUUNYL3UK5GO5ETHBX6VX","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":"cec0a220f6a8c2505779233f8ae9e212209219f8b1db517f68d2a503b7540f93","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-07-15T18:05:46Z","title_canon_sha256":"0e05309330cfa0437e4a54cfcc31605994147da29bc0ffa79dbc0e769ee50734"},"schema_version":"1.0","source":{"id":"2207.07684","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2207.07684","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"arxiv_version","alias_value":"2207.07684v1","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2207.07684","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"pith_short_12","alias_value":"K3C4JHUUNYL3","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"pith_short_16","alias_value":"K3C4JHUUNYL3UK5G","created_at":"2026-07-05T04:40:35Z"},{"alias_kind":"pith_short_8","alias_value":"K3C4JHUU","created_at":"2026-07-05T04:40:35Z"}],"graph_snapshots":[{"event_id":"sha256:586fcfdd76242e52f2a83afb0e8a8b5c1940cb529871ccd6282f3927ad606a0f","target":"graph","created_at":"2026-07-05T04:40:35Z","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/2207.07684/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Graph-based procedural materials are ubiquitous in content production industries. Procedural models allow the creation of photorealistic materials with parametric control for flexible editing of appearance. However, designing a specific material is a time-consuming process in terms of building a model and fine-tuning parameters. Previous work [Hu et al. 2022; Shi et al. 2020] introduced material graph optimization frameworks for matching target material samples. However, these previous methods were limited to optimizing differentiable functions in the graphs. In this paper, we propose a fully ","authors_text":"Holly Rushmeier, Milo\\v{s} Ha\\v{s}an, Paul Guerrero, Valentin Deschaintre, Yiwei Hu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-07-15T18:05:46Z","title":"Node Graph Optimization Using Differentiable Proxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2207.07684","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:bede0fb57142792defba98aa8ce25c2439cdb5ebb07eeb5ba6e5057683c0fae1","target":"record","created_at":"2026-07-05T04:40:35Z","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":"cec0a220f6a8c2505779233f8ae9e212209219f8b1db517f68d2a503b7540f93","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2022-07-15T18:05:46Z","title_canon_sha256":"0e05309330cfa0437e4a54cfcc31605994147da29bc0ffa79dbc0e769ee50734"},"schema_version":"1.0","source":{"id":"2207.07684","kind":"arxiv","version":1}},"canonical_sha256":"56c5c49e946e17ba2ba677493386feade90b31c6204a9788fc84a43d6aa24339","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"56c5c49e946e17ba2ba677493386feade90b31c6204a9788fc84a43d6aa24339","first_computed_at":"2026-07-05T04:40:35.779737Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:40:35.779737Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"aSHKbQ2Au1+bZvFulsX2R0aoYhtpytKNrxI8Gk0xhNxkXMIfpT+IIOIYJV8gsp+MefKBbp9156P2CcYMUrrlAA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:40:35.780273Z","signed_message":"canonical_sha256_bytes"},"source_id":"2207.07684","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bede0fb57142792defba98aa8ce25c2439cdb5ebb07eeb5ba6e5057683c0fae1","sha256:586fcfdd76242e52f2a83afb0e8a8b5c1940cb529871ccd6282f3927ad606a0f"],"state_sha256":"b96fdba18e19709671d08a0e180a70f8b8411c44ada914db96ec377fb0bca0a4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3NdHT1vOLLoSQPKYozQb6geST81s+mznU5z5Fy2epD2MbT5A+n5G7BbP+LD8vS3ed4gp5B8gIE5H8s77OBmRCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T02:05:37.848579Z","bundle_sha256":"442aea6fff3afb688a0b4f36c4b581d146e26d9bbfde2a837c2244610523b8f2"}}