{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:T7EGNLNRTFN7GQHYJ4AOYCB6QE","short_pith_number":"pith:T7EGNLNR","canonical_record":{"source":{"id":"1812.02822","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-12-06T21:52:33Z","cross_cats_sorted":["cs.CV","cs.LG"],"title_canon_sha256":"cc06338c82e0aa9f536766d5bd24e84a13783349846a90b90ff00194bd192c53","abstract_canon_sha256":"f4030deb1fbb15fc8de9e1e85e9a269e8fd05c677e5b2a29cb70e4a5bfb71b9a"},"schema_version":"1.0"},"canonical_sha256":"9fc866adb1995bf340f84f00ec083e811251a0c7762f5fa090555a44bbda96d1","source":{"kind":"arxiv","id":"1812.02822","version":5},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.02822","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"1812.02822v5","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.02822","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"T7EGNLNRTFN7","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"pith_short_16","alias_value":"T7EGNLNRTFN7GQHY","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"pith_short_8","alias_value":"T7EGNLNR","created_at":"2026-07-05T00:04:55Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:T7EGNLNRTFN7GQHYJ4AOYCB6QE","target":"record","payload":{"canonical_record":{"source":{"id":"1812.02822","kind":"arxiv","version":5},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-12-06T21:52:33Z","cross_cats_sorted":["cs.CV","cs.LG"],"title_canon_sha256":"cc06338c82e0aa9f536766d5bd24e84a13783349846a90b90ff00194bd192c53","abstract_canon_sha256":"f4030deb1fbb15fc8de9e1e85e9a269e8fd05c677e5b2a29cb70e4a5bfb71b9a"},"schema_version":"1.0"},"canonical_sha256":"9fc866adb1995bf340f84f00ec083e811251a0c7762f5fa090555a44bbda96d1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:04:55.973080Z","signature_b64":"tQYzvNHoY3nOdIuAXeCBjTDKuYNA7l7y1fS2V6gC+7qudpcvDeL0WaUBqsC+r828zeRfy7D8VFyoE+pzXb3iAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9fc866adb1995bf340f84f00ec083e811251a0c7762f5fa090555a44bbda96d1","last_reissued_at":"2026-07-05T00:04:55.972676Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:04:55.972676Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1812.02822","source_version":5,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T00:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"hB3unXlIh34ROppfTTZESOmRQl2wKV/MxrTtaqUul0v8V9HzL7VXvAFEtxYGDfz3O4Fpem2FnjrSpi5xdKcKBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T20:37:08.184929Z"},"content_sha256":"ad2f0b9c2cf41f36dce154ad9f1b5006b8b9d1fa12db6b1a36e258b814c17d9e","schema_version":"1.0","event_id":"sha256:ad2f0b9c2cf41f36dce154ad9f1b5006b8b9d1fa12db6b1a36e258b814c17d9e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:T7EGNLNRTFN7GQHYJ4AOYCB6QE","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Learning Implicit Fields for Generative Shape Modeling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CV","cs.LG"],"primary_cat":"cs.GR","authors_text":"Hao Zhang, Zhiqin Chen","submitted_at":"2018-12-06T21:52:33Z","abstract_excerpt":"We advocate the use of implicit fields for learning generative models of shapes and introduce an implicit field decoder, called IM-NET, for shape generation, aimed at improving the visual quality of the generated shapes. An implicit field assigns a value to each point in 3D space, so that a shape can be extracted as an iso-surface. IM-NET is trained to perform this assignment by means of a binary classifier. Specifically, it takes a point coordinate, along with a feature vector encoding a shape, and outputs a value which indicates whether the point is outside the shape or not. By replacing con"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.02822","kind":"arxiv","version":5},"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/1812.02822/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":"2026-07-05T00:04:55Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yh6K6pb8qv51h0ll2ds1BYjheLHZT8Ao+hJkmzEQrBsf2sFabIyh2dIQ6QQHOu8mW2OckQWLunkmiREEb/vTAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-19T20:37:08.185475Z"},"content_sha256":"33804cd150a24024ec4e68b98323f9781a7843f858d7bfbf7395ced522f6c261","schema_version":"1.0","event_id":"sha256:33804cd150a24024ec4e68b98323f9781a7843f858d7bfbf7395ced522f6c261"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/T7EGNLNRTFN7GQHYJ4AOYCB6QE/bundle.json","state_url":"https://pith.science/pith/T7EGNLNRTFN7GQHYJ4AOYCB6QE/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/T7EGNLNRTFN7GQHYJ4AOYCB6QE/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":"2026-08-19T20:37:08Z","links":{"resolver":"https://pith.science/pith/T7EGNLNRTFN7GQHYJ4AOYCB6QE","bundle":"https://pith.science/pith/T7EGNLNRTFN7GQHYJ4AOYCB6QE/bundle.json","state":"https://pith.science/pith/T7EGNLNRTFN7GQHYJ4AOYCB6QE/state.json","well_known_bundle":"https://pith.science/.well-known/pith/T7EGNLNRTFN7GQHYJ4AOYCB6QE/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:T7EGNLNRTFN7GQHYJ4AOYCB6QE","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":"f4030deb1fbb15fc8de9e1e85e9a269e8fd05c677e5b2a29cb70e4a5bfb71b9a","cross_cats_sorted":["cs.CV","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-12-06T21:52:33Z","title_canon_sha256":"cc06338c82e0aa9f536766d5bd24e84a13783349846a90b90ff00194bd192c53"},"schema_version":"1.0","source":{"id":"1812.02822","kind":"arxiv","version":5}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1812.02822","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"arxiv_version","alias_value":"1812.02822v5","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1812.02822","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"pith_short_12","alias_value":"T7EGNLNRTFN7","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"pith_short_16","alias_value":"T7EGNLNRTFN7GQHY","created_at":"2026-07-05T00:04:55Z"},{"alias_kind":"pith_short_8","alias_value":"T7EGNLNR","created_at":"2026-07-05T00:04:55Z"}],"graph_snapshots":[{"event_id":"sha256:33804cd150a24024ec4e68b98323f9781a7843f858d7bfbf7395ced522f6c261","target":"graph","created_at":"2026-07-05T00:04:55Z","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/1812.02822/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We advocate the use of implicit fields for learning generative models of shapes and introduce an implicit field decoder, called IM-NET, for shape generation, aimed at improving the visual quality of the generated shapes. An implicit field assigns a value to each point in 3D space, so that a shape can be extracted as an iso-surface. IM-NET is trained to perform this assignment by means of a binary classifier. Specifically, it takes a point coordinate, along with a feature vector encoding a shape, and outputs a value which indicates whether the point is outside the shape or not. By replacing con","authors_text":"Hao Zhang, Zhiqin Chen","cross_cats":["cs.CV","cs.LG"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-12-06T21:52:33Z","title":"Learning Implicit Fields for Generative Shape Modeling"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1812.02822","kind":"arxiv","version":5},"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:ad2f0b9c2cf41f36dce154ad9f1b5006b8b9d1fa12db6b1a36e258b814c17d9e","target":"record","created_at":"2026-07-05T00:04:55Z","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":"f4030deb1fbb15fc8de9e1e85e9a269e8fd05c677e5b2a29cb70e4a5bfb71b9a","cross_cats_sorted":["cs.CV","cs.LG"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.GR","submitted_at":"2018-12-06T21:52:33Z","title_canon_sha256":"cc06338c82e0aa9f536766d5bd24e84a13783349846a90b90ff00194bd192c53"},"schema_version":"1.0","source":{"id":"1812.02822","kind":"arxiv","version":5}},"canonical_sha256":"9fc866adb1995bf340f84f00ec083e811251a0c7762f5fa090555a44bbda96d1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"9fc866adb1995bf340f84f00ec083e811251a0c7762f5fa090555a44bbda96d1","first_computed_at":"2026-07-05T00:04:55.972676Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:04:55.972676Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"tQYzvNHoY3nOdIuAXeCBjTDKuYNA7l7y1fS2V6gC+7qudpcvDeL0WaUBqsC+r828zeRfy7D8VFyoE+pzXb3iAw==","signature_status":"signed_v1","signed_at":"2026-07-05T00:04:55.973080Z","signed_message":"canonical_sha256_bytes"},"source_id":"1812.02822","source_kind":"arxiv","source_version":5}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ad2f0b9c2cf41f36dce154ad9f1b5006b8b9d1fa12db6b1a36e258b814c17d9e","sha256:33804cd150a24024ec4e68b98323f9781a7843f858d7bfbf7395ced522f6c261"],"state_sha256":"ea0ff9fd7656e6e690b9deca4d143f14d51953c6e1f9436beac5fa382ab37035"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"u2OrnELS8Xd1bTXcE5EfmQh0G6HT2UsBeHDMnGn5yNmQcnCqJR87cuUVp+p0Dg4nm++L8S2/6raK3j3PqfMjAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-19T20:37:08.189254Z","bundle_sha256":"cceb9eeea7bb75b5c0006709ad0a5f9b80d817efb34ffeb5fad933d50595e4c5"}}