{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:FTERNGOW6NNWP2BC6ZEEYA5HBQ","short_pith_number":"pith:FTERNGOW","canonical_record":{"source":{"id":"2608.17695","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-08-18T12:12:21Z","cross_cats_sorted":[],"title_canon_sha256":"ffc327df052d18e9c6cbad00ccd0b5e45bec50960817c92c661fb68c4a3127e2","abstract_canon_sha256":"5d05b92982b0170493f308ea79bb5fbae39c1c8c396d33d2eadbdf6e0ac6a1b5"},"schema_version":"1.0"},"canonical_sha256":"2cc91699d6f35b67e822f6484c03a70c3d161815d1e9137cd356940c03bba54b","source":{"kind":"arxiv","id":"2608.17695","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.17695","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"arxiv_version","alias_value":"2608.17695v1","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.17695","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"pith_short_12","alias_value":"FTERNGOW6NNW","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"FTERNGOW6NNWP2BC","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"FTERNGOW","created_at":"2026-08-19T01:32:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:FTERNGOW6NNWP2BC6ZEEYA5HBQ","target":"record","payload":{"canonical_record":{"source":{"id":"2608.17695","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-08-18T12:12:21Z","cross_cats_sorted":[],"title_canon_sha256":"ffc327df052d18e9c6cbad00ccd0b5e45bec50960817c92c661fb68c4a3127e2","abstract_canon_sha256":"5d05b92982b0170493f308ea79bb5fbae39c1c8c396d33d2eadbdf6e0ac6a1b5"},"schema_version":"1.0"},"canonical_sha256":"2cc91699d6f35b67e822f6484c03a70c3d161815d1e9137cd356940c03bba54b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-19T01:32:11.499010Z","signature_b64":"2nK29I1qv/KJVv1jJerXapZJp3mQXUxa6L45X00J8l4ziWQ0rL2kPSnDxyI+LL3B0biAaZEmv5F3z1k5ZPRpAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2cc91699d6f35b67e822f6484c03a70c3d161815d1e9137cd356940c03bba54b","last_reissued_at":"2026-08-19T01:32:11.496752Z","signature_status":"signed_v1","first_computed_at":"2026-08-19T01:32:11.496752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.17695","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":"2026-08-19T01:32:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8vQS/nHqmby/SuHwiFuI9ZgNrLfh9ueXYtPSScNcQ2IUwENMG8Zzs2t8ZSL5JrAB4fIaPM1DiPeiKXTQAUedDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T10:32:29.065793Z"},"content_sha256":"954da2c2933367093bc656e4e7daa01480a432eb7744b6430489ed48e1a78719","schema_version":"1.0","event_id":"sha256:954da2c2933367093bc656e4e7daa01480a432eb7744b6430489ed48e1a78719"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:FTERNGOW6NNWP2BC6ZEEYA5HBQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnitude-Direction Decoupling for Fast Video Generation with Flow Matching Models","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Baoxing Huai, Feiyang Chen, Haonan Xu, Hongpeng Pan, Songkui Chen, Xinyu Duan, Yang Yang, Zhefeng Wang","submitted_at":"2026-08-18T12:12:21Z","abstract_excerpt":"Flow matching models for video generation achieve impressive performance but suffer from high computational overhead due to iterative denoising. In fact, the original model is not necessary for all denoising steps, allowing some steps to use lightweight alternatives for faster sampling. However, directly using caching or lightweight models can deviate from the original denoising trajectory, resulting in suboptimal performance. Through empirical analysis, we find that lightweight models can robustly capture the magnitude components of the original model's output, while caching provides reliable"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.17695","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/2608.17695/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":"2026-08-19T01:32:11Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QhVZwAV3FUF/BDjuu2cjt9pjJi4+erIpA6Qiz9C8JUCCUriwZeUJ/WS1/RfVnlgjGu93ZDgcZ7Wv7jGI4mdABg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T10:32:29.066501Z"},"content_sha256":"dddfa860e4cbebbf0b6f8411f1684c3732fb25f613459c79e1db51a8858c7e22","schema_version":"1.0","event_id":"sha256:dddfa860e4cbebbf0b6f8411f1684c3732fb25f613459c79e1db51a8858c7e22"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FTERNGOW6NNWP2BC6ZEEYA5HBQ/bundle.json","state_url":"https://pith.science/pith/FTERNGOW6NNWP2BC6ZEEYA5HBQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FTERNGOW6NNWP2BC6ZEEYA5HBQ/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":"2026-08-20T10:32:29Z","links":{"resolver":"https://pith.science/pith/FTERNGOW6NNWP2BC6ZEEYA5HBQ","bundle":"https://pith.science/pith/FTERNGOW6NNWP2BC6ZEEYA5HBQ/bundle.json","state":"https://pith.science/pith/FTERNGOW6NNWP2BC6ZEEYA5HBQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FTERNGOW6NNWP2BC6ZEEYA5HBQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FTERNGOW6NNWP2BC6ZEEYA5HBQ","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":"5d05b92982b0170493f308ea79bb5fbae39c1c8c396d33d2eadbdf6e0ac6a1b5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-08-18T12:12:21Z","title_canon_sha256":"ffc327df052d18e9c6cbad00ccd0b5e45bec50960817c92c661fb68c4a3127e2"},"schema_version":"1.0","source":{"id":"2608.17695","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.17695","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"arxiv_version","alias_value":"2608.17695v1","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.17695","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"pith_short_12","alias_value":"FTERNGOW6NNW","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"pith_short_16","alias_value":"FTERNGOW6NNWP2BC","created_at":"2026-08-19T01:32:11Z"},{"alias_kind":"pith_short_8","alias_value":"FTERNGOW","created_at":"2026-08-19T01:32:11Z"}],"graph_snapshots":[{"event_id":"sha256:dddfa860e4cbebbf0b6f8411f1684c3732fb25f613459c79e1db51a8858c7e22","target":"graph","created_at":"2026-08-19T01:32:11Z","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/2608.17695/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Flow matching models for video generation achieve impressive performance but suffer from high computational overhead due to iterative denoising. In fact, the original model is not necessary for all denoising steps, allowing some steps to use lightweight alternatives for faster sampling. However, directly using caching or lightweight models can deviate from the original denoising trajectory, resulting in suboptimal performance. Through empirical analysis, we find that lightweight models can robustly capture the magnitude components of the original model's output, while caching provides reliable","authors_text":"Baoxing Huai, Feiyang Chen, Haonan Xu, Hongpeng Pan, Songkui Chen, Xinyu Duan, Yang Yang, Zhefeng Wang","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-08-18T12:12:21Z","title":"Magnitude-Direction Decoupling for Fast Video Generation with Flow Matching Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.17695","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":"sha256:954da2c2933367093bc656e4e7daa01480a432eb7744b6430489ed48e1a78719","target":"record","created_at":"2026-08-19T01:32:11Z","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":"5d05b92982b0170493f308ea79bb5fbae39c1c8c396d33d2eadbdf6e0ac6a1b5","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.CV","submitted_at":"2026-08-18T12:12:21Z","title_canon_sha256":"ffc327df052d18e9c6cbad00ccd0b5e45bec50960817c92c661fb68c4a3127e2"},"schema_version":"1.0","source":{"id":"2608.17695","kind":"arxiv","version":1}},"canonical_sha256":"2cc91699d6f35b67e822f6484c03a70c3d161815d1e9137cd356940c03bba54b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2cc91699d6f35b67e822f6484c03a70c3d161815d1e9137cd356940c03bba54b","first_computed_at":"2026-08-19T01:32:11.496752Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-19T01:32:11.496752Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2nK29I1qv/KJVv1jJerXapZJp3mQXUxa6L45X00J8l4ziWQ0rL2kPSnDxyI+LL3B0biAaZEmv5F3z1k5ZPRpAg==","signature_status":"signed_v1","signed_at":"2026-08-19T01:32:11.499010Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.17695","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:954da2c2933367093bc656e4e7daa01480a432eb7744b6430489ed48e1a78719","sha256:dddfa860e4cbebbf0b6f8411f1684c3732fb25f613459c79e1db51a8858c7e22"],"state_sha256":"a380b5d598ea1e469f42d491951118395ae954f88f6adfbe0c22fe6e784cd35b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nXLq0FRM2G+z0WzCBEGYKFyAQTCic0OXE/fwuF0kVRxcOg0vm29R9D9PkMrCulGSrkqu+1dncFyvKE+pnwCoBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T10:32:29.071902Z","bundle_sha256":"ffc647e12151d3d27ea674b6ed7941920dc9b2e3bdb0759f416f03a75c7d60c1"}}