{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:I6AEKYSTZSCCWFUZALT5RFZODO","short_pith_number":"pith:I6AEKYST","canonical_record":{"source":{"id":"2109.08379","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-09-17T07:24:16Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"542fe2d6933814f4a32d2a5f1328d73aa23ab6ad55e42ce8cc8876c8da060018","abstract_canon_sha256":"79430c561ca4a38732397e964e7c5cb7ef1a6f7027300902654717c5fd5650dd"},"schema_version":"1.0"},"canonical_sha256":"4780456253cc842b169902e7d8972e1b85ef1caeeec3852600cc008d0c11509b","source":{"kind":"arxiv","id":"2109.08379","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.08379","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"arxiv_version","alias_value":"2109.08379v1","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.08379","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"pith_short_12","alias_value":"I6AEKYSTZSCC","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"pith_short_16","alias_value":"I6AEKYSTZSCCWFUZ","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"pith_short_8","alias_value":"I6AEKYST","created_at":"2026-07-05T03:15:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:I6AEKYSTZSCCWFUZALT5RFZODO","target":"record","payload":{"canonical_record":{"source":{"id":"2109.08379","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-09-17T07:24:16Z","cross_cats_sorted":["cs.AI"],"title_canon_sha256":"542fe2d6933814f4a32d2a5f1328d73aa23ab6ad55e42ce8cc8876c8da060018","abstract_canon_sha256":"79430c561ca4a38732397e964e7c5cb7ef1a6f7027300902654717c5fd5650dd"},"schema_version":"1.0"},"canonical_sha256":"4780456253cc842b169902e7d8972e1b85ef1caeeec3852600cc008d0c11509b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:15:15.270554Z","signature_b64":"1aWDfOCZKU+s5FDkd/Za+BYogyTA9LwCB8JybiAQgPrW41NbgXP6+ouK9PSUnvOCx5xAVBm/KTBxe+y+Is7zAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4780456253cc842b169902e7d8972e1b85ef1caeeec3852600cc008d0c11509b","last_reissued_at":"2026-07-05T03:15:15.270192Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:15:15.270192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2109.08379","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":"2026-07-05T03:15:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GgVu4a693Bo2jNqAkfiIxWlHrQvLL7Jhrm4RJhJ9dABPQL2ph9BQVDB+o4AfXprmIkbe9WJY34WuvJ6+s96kBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T06:41:10.647182Z"},"content_sha256":"0276be74613735f36bbd97d3c98a59cfc3a9938cb8838081e529e9d0b5fc77d7","schema_version":"1.0","event_id":"sha256:0276be74613735f36bbd97d3c98a59cfc3a9938cb8838081e529e9d0b5fc77d7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:I6AEKYSTZSCCWFUZALT5RFZODO","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PIRenderer: Controllable Portrait Image Generation via Semantic Neural Rendering","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI"],"primary_cat":"cs.CV","authors_text":"Ge Li, Shan Liu, Thomas H. Li, Yuanqi Chen, Yurui Ren","submitted_at":"2021-09-17T07:24:16Z","abstract_excerpt":"Generating portrait images by controlling the motions of existing faces is an important task of great consequence to social media industries. For easy use and intuitive control, semantically meaningful and fully disentangled parameters should be used as modifications. However, many existing techniques do not provide such fine-grained controls or use indirect editing methods i.e. mimic motions of other individuals. In this paper, a Portrait Image Neural Renderer (PIRenderer) is proposed to control the face motions with the parameters of three-dimensional morphable face models (3DMMs). The propo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.08379","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/2109.08379/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":"2026-07-05T03:15:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KZzQMnDl5EXZWunY9tDTYByCffhAcK6kytHMp3DzA5mHhIA7i/eos1Y2v+UyFQS5YWSNwsqh4TS6vQQlBoEWAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-14T06:41:10.647687Z"},"content_sha256":"992dcf42355843fe513be063fcf9580f4a0f257e1a32876bd41264c89453fd1f","schema_version":"1.0","event_id":"sha256:992dcf42355843fe513be063fcf9580f4a0f257e1a32876bd41264c89453fd1f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I6AEKYSTZSCCWFUZALT5RFZODO/bundle.json","state_url":"https://pith.science/pith/I6AEKYSTZSCCWFUZALT5RFZODO/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I6AEKYSTZSCCWFUZALT5RFZODO/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":"2026-08-14T06:41:10Z","links":{"resolver":"https://pith.science/pith/I6AEKYSTZSCCWFUZALT5RFZODO","bundle":"https://pith.science/pith/I6AEKYSTZSCCWFUZALT5RFZODO/bundle.json","state":"https://pith.science/pith/I6AEKYSTZSCCWFUZALT5RFZODO/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I6AEKYSTZSCCWFUZALT5RFZODO/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:I6AEKYSTZSCCWFUZALT5RFZODO","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":"79430c561ca4a38732397e964e7c5cb7ef1a6f7027300902654717c5fd5650dd","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-09-17T07:24:16Z","title_canon_sha256":"542fe2d6933814f4a32d2a5f1328d73aa23ab6ad55e42ce8cc8876c8da060018"},"schema_version":"1.0","source":{"id":"2109.08379","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2109.08379","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"arxiv_version","alias_value":"2109.08379v1","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2109.08379","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"pith_short_12","alias_value":"I6AEKYSTZSCC","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"pith_short_16","alias_value":"I6AEKYSTZSCCWFUZ","created_at":"2026-07-05T03:15:15Z"},{"alias_kind":"pith_short_8","alias_value":"I6AEKYST","created_at":"2026-07-05T03:15:15Z"}],"graph_snapshots":[{"event_id":"sha256:992dcf42355843fe513be063fcf9580f4a0f257e1a32876bd41264c89453fd1f","target":"graph","created_at":"2026-07-05T03:15:15Z","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/2109.08379/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Generating portrait images by controlling the motions of existing faces is an important task of great consequence to social media industries. For easy use and intuitive control, semantically meaningful and fully disentangled parameters should be used as modifications. However, many existing techniques do not provide such fine-grained controls or use indirect editing methods i.e. mimic motions of other individuals. In this paper, a Portrait Image Neural Renderer (PIRenderer) is proposed to control the face motions with the parameters of three-dimensional morphable face models (3DMMs). The propo","authors_text":"Ge Li, Shan Liu, Thomas H. Li, Yuanqi Chen, Yurui Ren","cross_cats":["cs.AI"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-09-17T07:24:16Z","title":"PIRenderer: Controllable Portrait Image Generation via Semantic Neural Rendering"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2109.08379","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":"sha256:0276be74613735f36bbd97d3c98a59cfc3a9938cb8838081e529e9d0b5fc77d7","target":"record","created_at":"2026-07-05T03:15:15Z","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":"79430c561ca4a38732397e964e7c5cb7ef1a6f7027300902654717c5fd5650dd","cross_cats_sorted":["cs.AI"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2021-09-17T07:24:16Z","title_canon_sha256":"542fe2d6933814f4a32d2a5f1328d73aa23ab6ad55e42ce8cc8876c8da060018"},"schema_version":"1.0","source":{"id":"2109.08379","kind":"arxiv","version":1}},"canonical_sha256":"4780456253cc842b169902e7d8972e1b85ef1caeeec3852600cc008d0c11509b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4780456253cc842b169902e7d8972e1b85ef1caeeec3852600cc008d0c11509b","first_computed_at":"2026-07-05T03:15:15.270192Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:15:15.270192Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1aWDfOCZKU+s5FDkd/Za+BYogyTA9LwCB8JybiAQgPrW41NbgXP6+ouK9PSUnvOCx5xAVBm/KTBxe+y+Is7zAg==","signature_status":"signed_v1","signed_at":"2026-07-05T03:15:15.270554Z","signed_message":"canonical_sha256_bytes"},"source_id":"2109.08379","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0276be74613735f36bbd97d3c98a59cfc3a9938cb8838081e529e9d0b5fc77d7","sha256:992dcf42355843fe513be063fcf9580f4a0f257e1a32876bd41264c89453fd1f"],"state_sha256":"d70f5dbdc1026dc570c18093331c0067fe5cad300817bd2b38b510676bdf843d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kFzLFY2SSl+qlbuqNB1GWS1VQzzSgVCRxwS7e1k4Zj5zpPffvS8ZOIwpwd5SCZSSW3nZDzDlWIf9loIHe/AyBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-14T06:41:10.651330Z","bundle_sha256":"478713ad108d437cbf0a415aee6e73a779dc76ec70ed550807732a91a6d428b2"}}