{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:RA7TYQDPQBDPQQZWNLVMH2BU5X","short_pith_number":"pith:RA7TYQDP","canonical_record":{"source":{"id":"2405.14025","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-05-22T21:59:58Z","cross_cats_sorted":[],"title_canon_sha256":"6f7507592bfb330dbcb8f4635e67258b12de650e987ddc9d3644cbc8f8311691","abstract_canon_sha256":"6fb91418d7615973ce97a9155c008a539b0f20ecde65e4ed71b43e51961525aa"},"schema_version":"1.0"},"canonical_sha256":"883f3c406f8046f843366aeac3e834edd21a24bc1858b944c429debfb8d187ea","source":{"kind":"arxiv","id":"2405.14025","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.14025","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"arxiv_version","alias_value":"2405.14025v1","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.14025","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"pith_short_12","alias_value":"RA7TYQDPQBDP","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"pith_short_16","alias_value":"RA7TYQDPQBDPQQZW","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"pith_short_8","alias_value":"RA7TYQDP","created_at":"2026-07-05T08:22:09Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:RA7TYQDPQBDPQQZWNLVMH2BU5X","target":"record","payload":{"canonical_record":{"source":{"id":"2405.14025","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-05-22T21:59:58Z","cross_cats_sorted":[],"title_canon_sha256":"6f7507592bfb330dbcb8f4635e67258b12de650e987ddc9d3644cbc8f8311691","abstract_canon_sha256":"6fb91418d7615973ce97a9155c008a539b0f20ecde65e4ed71b43e51961525aa"},"schema_version":"1.0"},"canonical_sha256":"883f3c406f8046f843366aeac3e834edd21a24bc1858b944c429debfb8d187ea","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T08:22:09.454912Z","signature_b64":"yHedNa/tR7RzyDUC5ILEWraxROMZwG9uBIu4j+3RI0D6TvHZcXhd1z03MyaaE5xELfsPaQUZfjit7ZL0n9lICQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"883f3c406f8046f843366aeac3e834edd21a24bc1858b944c429debfb8d187ea","last_reissued_at":"2026-07-05T08:22:09.454532Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T08:22:09.454532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2405.14025","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":"2026-07-05T08:22:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gmjjv1ZhX8DXLK9r8KncslLU7QKxU4Y5Xl0OcYPKACdmjTFgI/gZUzRoKqUc1D3MUU/7BhZOgM7fpe7MN1vxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T02:37:30.390488Z"},"content_sha256":"d4954e4b2b9a7494e611661fbe1e9d8258d6557ef7fc996c80f01fa2343776e8","schema_version":"1.0","event_id":"sha256:d4954e4b2b9a7494e611661fbe1e9d8258d6557ef7fc996c80f01fa2343776e8"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:RA7TYQDPQBDPQQZWNLVMH2BU5X","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A Dynamic By-example BTF Synthesis Scheme","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.GR","authors_text":"Beibei Wang, Ling-Qi Yan, Zahra Montazeri, Zilin Xu","submitted_at":"2024-05-22T21:59:58Z","abstract_excerpt":"Measured Bidirectional Texture Function (BTF) can faithfully reproduce a realistic appearance but is costly to acquire and store due to its 6D nature (2D spatial and 4D angular). Therefore, it is practical and necessary for rendering to synthesize BTFs from a small example patch. While previous methods managed to produce plausible results, we find that they seldomly take into consideration the property of being dynamic, so a BTF must be synthesized before the rendering process, resulting in limited size, costly pre-generation and storage issues. In this paper, we propose a dynamic BTF synthesi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.14025","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/2405.14025/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":"2026-07-05T08:22:09Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"tHDP8Lf4D9q6Gy/ibAzPHb4FT7IcjP2xriAtMQAdWfsa37wkucsA7WvxcVKr0rkYbDvZ97BZsZSqoipmPKzmDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-10T02:37:30.390880Z"},"content_sha256":"8ca3c5f66f2862dc70913fce135038772817ee250d11bd04a8abf831294265ee","schema_version":"1.0","event_id":"sha256:8ca3c5f66f2862dc70913fce135038772817ee250d11bd04a8abf831294265ee"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/RA7TYQDPQBDPQQZWNLVMH2BU5X/bundle.json","state_url":"https://pith.science/pith/RA7TYQDPQBDPQQZWNLVMH2BU5X/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/RA7TYQDPQBDPQQZWNLVMH2BU5X/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":"2026-07-10T02:37:30Z","links":{"resolver":"https://pith.science/pith/RA7TYQDPQBDPQQZWNLVMH2BU5X","bundle":"https://pith.science/pith/RA7TYQDPQBDPQQZWNLVMH2BU5X/bundle.json","state":"https://pith.science/pith/RA7TYQDPQBDPQQZWNLVMH2BU5X/state.json","well_known_bundle":"https://pith.science/.well-known/pith/RA7TYQDPQBDPQQZWNLVMH2BU5X/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:RA7TYQDPQBDPQQZWNLVMH2BU5X","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":"6fb91418d7615973ce97a9155c008a539b0f20ecde65e4ed71b43e51961525aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-05-22T21:59:58Z","title_canon_sha256":"6f7507592bfb330dbcb8f4635e67258b12de650e987ddc9d3644cbc8f8311691"},"schema_version":"1.0","source":{"id":"2405.14025","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2405.14025","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"arxiv_version","alias_value":"2405.14025v1","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2405.14025","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"pith_short_12","alias_value":"RA7TYQDPQBDP","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"pith_short_16","alias_value":"RA7TYQDPQBDPQQZW","created_at":"2026-07-05T08:22:09Z"},{"alias_kind":"pith_short_8","alias_value":"RA7TYQDP","created_at":"2026-07-05T08:22:09Z"}],"graph_snapshots":[{"event_id":"sha256:8ca3c5f66f2862dc70913fce135038772817ee250d11bd04a8abf831294265ee","target":"graph","created_at":"2026-07-05T08:22:09Z","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/2405.14025/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Measured Bidirectional Texture Function (BTF) can faithfully reproduce a realistic appearance but is costly to acquire and store due to its 6D nature (2D spatial and 4D angular). Therefore, it is practical and necessary for rendering to synthesize BTFs from a small example patch. While previous methods managed to produce plausible results, we find that they seldomly take into consideration the property of being dynamic, so a BTF must be synthesized before the rendering process, resulting in limited size, costly pre-generation and storage issues. In this paper, we propose a dynamic BTF synthesi","authors_text":"Beibei Wang, Ling-Qi Yan, Zahra Montazeri, Zilin Xu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-05-22T21:59:58Z","title":"A Dynamic By-example BTF Synthesis Scheme"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2405.14025","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:d4954e4b2b9a7494e611661fbe1e9d8258d6557ef7fc996c80f01fa2343776e8","target":"record","created_at":"2026-07-05T08:22:09Z","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":"6fb91418d7615973ce97a9155c008a539b0f20ecde65e4ed71b43e51961525aa","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2024-05-22T21:59:58Z","title_canon_sha256":"6f7507592bfb330dbcb8f4635e67258b12de650e987ddc9d3644cbc8f8311691"},"schema_version":"1.0","source":{"id":"2405.14025","kind":"arxiv","version":1}},"canonical_sha256":"883f3c406f8046f843366aeac3e834edd21a24bc1858b944c429debfb8d187ea","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"883f3c406f8046f843366aeac3e834edd21a24bc1858b944c429debfb8d187ea","first_computed_at":"2026-07-05T08:22:09.454532Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T08:22:09.454532Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"yHedNa/tR7RzyDUC5ILEWraxROMZwG9uBIu4j+3RI0D6TvHZcXhd1z03MyaaE5xELfsPaQUZfjit7ZL0n9lICQ==","signature_status":"signed_v1","signed_at":"2026-07-05T08:22:09.454912Z","signed_message":"canonical_sha256_bytes"},"source_id":"2405.14025","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d4954e4b2b9a7494e611661fbe1e9d8258d6557ef7fc996c80f01fa2343776e8","sha256:8ca3c5f66f2862dc70913fce135038772817ee250d11bd04a8abf831294265ee"],"state_sha256":"41772bef894b1c67861ed1e6d8d369a01c0b56bf183a412dd35fccc61564da68"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"xmrQYjg9yUUUHxXIYDKcE7yPAWLJS2zfzj6O8GdYKGULznvA83v+UEEhz/T++8xM7ssWmhew9bgi1iW33BRMDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-10T02:37:30.392747Z","bundle_sha256":"3aa4d6b70d292e0774e2874f5a9d0f7ee05135ac02830975c143d6fe75d9bc19"}}