{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:KZZ4F4UVWSQD6VYRE7AJ45QSU4","short_pith_number":"pith:KZZ4F4UV","canonical_record":{"source":{"id":"2410.02917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-10-03T19:08:48Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"0c73bb20fe202bed0dedb8693950f31b0974e239a28c1b889f611c135552a595","abstract_canon_sha256":"0537959277d9ecc61331acaa114606a1db49c91bf569f0e13df1ccfb68b8ecb7"},"schema_version":"1.0"},"canonical_sha256":"5673c2f295b4a03f571127c09e7612a7210062b9c4f6f18da423eb38959c39a4","source":{"kind":"arxiv","id":"2410.02917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.02917","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"arxiv_version","alias_value":"2410.02917v1","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.02917","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"pith_short_12","alias_value":"KZZ4F4UVWSQD","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"pith_short_16","alias_value":"KZZ4F4UVWSQD6VYR","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"pith_short_8","alias_value":"KZZ4F4UV","created_at":"2026-07-05T10:31:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:KZZ4F4UVWSQD6VYRE7AJ45QSU4","target":"record","payload":{"canonical_record":{"source":{"id":"2410.02917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-10-03T19:08:48Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"0c73bb20fe202bed0dedb8693950f31b0974e239a28c1b889f611c135552a595","abstract_canon_sha256":"0537959277d9ecc61331acaa114606a1db49c91bf569f0e13df1ccfb68b8ecb7"},"schema_version":"1.0"},"canonical_sha256":"5673c2f295b4a03f571127c09e7612a7210062b9c4f6f18da423eb38959c39a4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:31:47.589807Z","signature_b64":"iktAujlJVJ+gL+vtQ04ei4bK4cJNl6B3BmpG1JwZTaU47pfM0vp5V+6GUiFP8XdbQmf9EiW6gMWDvIPQkwR8DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5673c2f295b4a03f571127c09e7612a7210062b9c4f6f18da423eb38959c39a4","last_reissued_at":"2026-07-05T10:31:47.589164Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:31:47.589164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2410.02917","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":"2026-07-05T10:31:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FbZHEsYQbKKGId/Ekz3XHVZssC75oGDezDnxDBPnHLyNDGXwNrvOHdiWPMrHDAoutka3G/bqU5BopnbmwGQiDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T18:55:50.150029Z"},"content_sha256":"c3ef8b0f9c0f476cbf8b9e57b66cad528dd655fdfa066cc9b629616448c5e1bc","schema_version":"1.0","event_id":"sha256:c3ef8b0f9c0f476cbf8b9e57b66cad528dd655fdfa066cc9b629616448c5e1bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:KZZ4F4UVWSQD6VYRE7AJ45QSU4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Deep image-based Adaptive BRDF Measure","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.GR","authors_text":"Wen Cao","submitted_at":"2024-10-03T19:08:48Z","abstract_excerpt":"Efficient and accurate measurement of the bi-directional reflectance distribution function (BRDF) plays a key role in high quality image rendering and physically accurate sensor simulation. However, obtaining the reflectance properties of a material is both time-consuming and challenging. This paper presents a novel method for minimizing the number of samples required for high quality BRDF capture using a gonio-reflectometer setup. Taking an image of the physical material sample as input a lightweight neural network first estimates the parameters of an analytic BRDF model, and the distribution"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.02917","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/2410.02917/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":"2026-07-05T10:31:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MegsQph3IoaWZXO4+1jErdLiM3IdlFLoPbsuWUSL+qbYNIEhZGpqTnbgIpDTljX91YFeq8G1yk4pRp2kfAAwCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T18:55:50.150599Z"},"content_sha256":"46ffa1e23c8b26cabdb553ac3b4583e00722b1d91635da431c9cc08fb1864250","schema_version":"1.0","event_id":"sha256:46ffa1e23c8b26cabdb553ac3b4583e00722b1d91635da431c9cc08fb1864250"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/KZZ4F4UVWSQD6VYRE7AJ45QSU4/bundle.json","state_url":"https://pith.science/pith/KZZ4F4UVWSQD6VYRE7AJ45QSU4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/KZZ4F4UVWSQD6VYRE7AJ45QSU4/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":"2026-08-18T18:55:50Z","links":{"resolver":"https://pith.science/pith/KZZ4F4UVWSQD6VYRE7AJ45QSU4","bundle":"https://pith.science/pith/KZZ4F4UVWSQD6VYRE7AJ45QSU4/bundle.json","state":"https://pith.science/pith/KZZ4F4UVWSQD6VYRE7AJ45QSU4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/KZZ4F4UVWSQD6VYRE7AJ45QSU4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:KZZ4F4UVWSQD6VYRE7AJ45QSU4","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":"0537959277d9ecc61331acaa114606a1db49c91bf569f0e13df1ccfb68b8ecb7","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-10-03T19:08:48Z","title_canon_sha256":"0c73bb20fe202bed0dedb8693950f31b0974e239a28c1b889f611c135552a595"},"schema_version":"1.0","source":{"id":"2410.02917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.02917","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"arxiv_version","alias_value":"2410.02917v1","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.02917","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"pith_short_12","alias_value":"KZZ4F4UVWSQD","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"pith_short_16","alias_value":"KZZ4F4UVWSQD6VYR","created_at":"2026-07-05T10:31:47Z"},{"alias_kind":"pith_short_8","alias_value":"KZZ4F4UV","created_at":"2026-07-05T10:31:47Z"}],"graph_snapshots":[{"event_id":"sha256:46ffa1e23c8b26cabdb553ac3b4583e00722b1d91635da431c9cc08fb1864250","target":"graph","created_at":"2026-07-05T10:31:47Z","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/2410.02917/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Efficient and accurate measurement of the bi-directional reflectance distribution function (BRDF) plays a key role in high quality image rendering and physically accurate sensor simulation. However, obtaining the reflectance properties of a material is both time-consuming and challenging. This paper presents a novel method for minimizing the number of samples required for high quality BRDF capture using a gonio-reflectometer setup. Taking an image of the physical material sample as input a lightweight neural network first estimates the parameters of an analytic BRDF model, and the distribution","authors_text":"Wen Cao","cross_cats":["cs.AI"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-10-03T19:08:48Z","title":"Deep image-based Adaptive BRDF Measure"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.02917","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:c3ef8b0f9c0f476cbf8b9e57b66cad528dd655fdfa066cc9b629616448c5e1bc","target":"record","created_at":"2026-07-05T10:31:47Z","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":"0537959277d9ecc61331acaa114606a1db49c91bf569f0e13df1ccfb68b8ecb7","cross_cats_sorted":["cs.AI"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-10-03T19:08:48Z","title_canon_sha256":"0c73bb20fe202bed0dedb8693950f31b0974e239a28c1b889f611c135552a595"},"schema_version":"1.0","source":{"id":"2410.02917","kind":"arxiv","version":1}},"canonical_sha256":"5673c2f295b4a03f571127c09e7612a7210062b9c4f6f18da423eb38959c39a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5673c2f295b4a03f571127c09e7612a7210062b9c4f6f18da423eb38959c39a4","first_computed_at":"2026-07-05T10:31:47.589164Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:31:47.589164Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iktAujlJVJ+gL+vtQ04ei4bK4cJNl6B3BmpG1JwZTaU47pfM0vp5V+6GUiFP8XdbQmf9EiW6gMWDvIPQkwR8DQ==","signature_status":"signed_v1","signed_at":"2026-07-05T10:31:47.589807Z","signed_message":"canonical_sha256_bytes"},"source_id":"2410.02917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c3ef8b0f9c0f476cbf8b9e57b66cad528dd655fdfa066cc9b629616448c5e1bc","sha256:46ffa1e23c8b26cabdb553ac3b4583e00722b1d91635da431c9cc08fb1864250"],"state_sha256":"a39e0ff1cfae04e501891ee2ef1c13b1000f88a652ed2132a9b061a320d7062d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g9QQsBKNnTQ1z7CH589KvqZ54UMDEG7oDe+vmK3ig6TyNY7NxaCnJTtuPSAAVVcG+QTssROGhIPyqZMBoQ84BA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T18:55:50.156027Z","bundle_sha256":"44065c9567c10e6a9b2a8cb908cd2abbdd527d265218f571650a31f8de7a21fc"}}