{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:HKUEIFF2YI64UM4YLITSWDH3DC","short_pith_number":"pith:HKUEIFF2","canonical_record":{"source":{"id":"2412.11549","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-12-16T08:31:55Z","cross_cats_sorted":[],"title_canon_sha256":"cfd48cfeb610eb0ff122fa5589fddeede7203d35f098b80defdd55c804aabb21","abstract_canon_sha256":"11d639d554077c08cdfacc22d255d16bfbbfcfbb9e31bbeca2e2c8b869385372"},"schema_version":"1.0"},"canonical_sha256":"3aa84414bac23dca33985a272b0cfb18827c9a94838ba7ec1bf022e3fc6f3266","source":{"kind":"arxiv","id":"2412.11549","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.11549","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"arxiv_version","alias_value":"2412.11549v1","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.11549","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"pith_short_12","alias_value":"HKUEIFF2YI64","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"pith_short_16","alias_value":"HKUEIFF2YI64UM4Y","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"pith_short_8","alias_value":"HKUEIFF2","created_at":"2026-07-05T09:49:34Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:HKUEIFF2YI64UM4YLITSWDH3DC","target":"record","payload":{"canonical_record":{"source":{"id":"2412.11549","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-12-16T08:31:55Z","cross_cats_sorted":[],"title_canon_sha256":"cfd48cfeb610eb0ff122fa5589fddeede7203d35f098b80defdd55c804aabb21","abstract_canon_sha256":"11d639d554077c08cdfacc22d255d16bfbbfcfbb9e31bbeca2e2c8b869385372"},"schema_version":"1.0"},"canonical_sha256":"3aa84414bac23dca33985a272b0cfb18827c9a94838ba7ec1bf022e3fc6f3266","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:49:34.649919Z","signature_b64":"756/lL3XxERMMotC0ogtVjCazIZqC9pFzSYTPpJIypCs2+2NkZUhZnYl3XXRiM5qF2tDK+Sb5oEXIAhN4d3uDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3aa84414bac23dca33985a272b0cfb18827c9a94838ba7ec1bf022e3fc6f3266","last_reissued_at":"2026-07-05T09:49:34.649452Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:49:34.649452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2412.11549","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":"2026-07-05T09:49:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vglHxTGGX8Wew3pGpDT3gmDn0nMCZEdj97ccMTjZ1FPp93pNN86UH5DC8HBQCaZMVVKL+SPuoOf4VjMG6zKOCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T21:31:56.787951Z"},"content_sha256":"d6b11c8d2c465bfc9f300a81f62a27ec026db62047c1a6ae9a9086503dbcd641","schema_version":"1.0","event_id":"sha256:d6b11c8d2c465bfc9f300a81f62a27ec026db62047c1a6ae9a9086503dbcd641"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:HKUEIFF2YI64UM4YLITSWDH3DC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"MPQ-DM: Mixed Precision Quantization for Extremely Low Bit Diffusion Models","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CV","authors_text":"Boyu Diao, Chuanguang Yang, Fei Wang, Haotong Qin, Libo Huang, Michele Magno, Renshuai Tao, Weilun Feng, Yongjun Xu, Zhulin An","submitted_at":"2024-12-16T08:31:55Z","abstract_excerpt":"Diffusion models have received wide attention in generation tasks. However, the expensive computation cost prevents the application of diffusion models in resource-constrained scenarios. Quantization emerges as a practical solution that significantly saves storage and computation by reducing the bit-width of parameters. However, the existing quantization methods for diffusion models still cause severe degradation in performance, especially under extremely low bit-widths (2-4 bit). The primary decrease in performance comes from the significant discretization of activation values at low bit quan"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.11549","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/2412.11549/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":"2026-07-05T09:49:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3qcv5dvIu5DdTP3ZpDBeL9EllDyHAz2YqXcFM0uPabePGJyl/9eAVIfWQa31EB4clenAILWJsMheAjphlWliDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-13T21:31:56.788879Z"},"content_sha256":"e33cb32e4f3468bb143bfac0e82f97d4805972a0d82d34697da6c6fa89925ce2","schema_version":"1.0","event_id":"sha256:e33cb32e4f3468bb143bfac0e82f97d4805972a0d82d34697da6c6fa89925ce2"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HKUEIFF2YI64UM4YLITSWDH3DC/bundle.json","state_url":"https://pith.science/pith/HKUEIFF2YI64UM4YLITSWDH3DC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HKUEIFF2YI64UM4YLITSWDH3DC/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":"2026-08-13T21:31:56Z","links":{"resolver":"https://pith.science/pith/HKUEIFF2YI64UM4YLITSWDH3DC","bundle":"https://pith.science/pith/HKUEIFF2YI64UM4YLITSWDH3DC/bundle.json","state":"https://pith.science/pith/HKUEIFF2YI64UM4YLITSWDH3DC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HKUEIFF2YI64UM4YLITSWDH3DC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:HKUEIFF2YI64UM4YLITSWDH3DC","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":"11d639d554077c08cdfacc22d255d16bfbbfcfbb9e31bbeca2e2c8b869385372","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-12-16T08:31:55Z","title_canon_sha256":"cfd48cfeb610eb0ff122fa5589fddeede7203d35f098b80defdd55c804aabb21"},"schema_version":"1.0","source":{"id":"2412.11549","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2412.11549","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"arxiv_version","alias_value":"2412.11549v1","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2412.11549","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"pith_short_12","alias_value":"HKUEIFF2YI64","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"pith_short_16","alias_value":"HKUEIFF2YI64UM4Y","created_at":"2026-07-05T09:49:34Z"},{"alias_kind":"pith_short_8","alias_value":"HKUEIFF2","created_at":"2026-07-05T09:49:34Z"}],"graph_snapshots":[{"event_id":"sha256:e33cb32e4f3468bb143bfac0e82f97d4805972a0d82d34697da6c6fa89925ce2","target":"graph","created_at":"2026-07-05T09:49:34Z","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/2412.11549/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Diffusion models have received wide attention in generation tasks. However, the expensive computation cost prevents the application of diffusion models in resource-constrained scenarios. Quantization emerges as a practical solution that significantly saves storage and computation by reducing the bit-width of parameters. However, the existing quantization methods for diffusion models still cause severe degradation in performance, especially under extremely low bit-widths (2-4 bit). The primary decrease in performance comes from the significant discretization of activation values at low bit quan","authors_text":"Boyu Diao, Chuanguang Yang, Fei Wang, Haotong Qin, Libo Huang, Michele Magno, Renshuai Tao, Weilun Feng, Yongjun Xu, Zhulin An","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-12-16T08:31:55Z","title":"MPQ-DM: Mixed Precision Quantization for Extremely Low Bit Diffusion Models"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2412.11549","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:d6b11c8d2c465bfc9f300a81f62a27ec026db62047c1a6ae9a9086503dbcd641","target":"record","created_at":"2026-07-05T09:49:34Z","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":"11d639d554077c08cdfacc22d255d16bfbbfcfbb9e31bbeca2e2c8b869385372","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CV","submitted_at":"2024-12-16T08:31:55Z","title_canon_sha256":"cfd48cfeb610eb0ff122fa5589fddeede7203d35f098b80defdd55c804aabb21"},"schema_version":"1.0","source":{"id":"2412.11549","kind":"arxiv","version":1}},"canonical_sha256":"3aa84414bac23dca33985a272b0cfb18827c9a94838ba7ec1bf022e3fc6f3266","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3aa84414bac23dca33985a272b0cfb18827c9a94838ba7ec1bf022e3fc6f3266","first_computed_at":"2026-07-05T09:49:34.649452Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:49:34.649452Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"756/lL3XxERMMotC0ogtVjCazIZqC9pFzSYTPpJIypCs2+2NkZUhZnYl3XXRiM5qF2tDK+Sb5oEXIAhN4d3uDw==","signature_status":"signed_v1","signed_at":"2026-07-05T09:49:34.649919Z","signed_message":"canonical_sha256_bytes"},"source_id":"2412.11549","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6b11c8d2c465bfc9f300a81f62a27ec026db62047c1a6ae9a9086503dbcd641","sha256:e33cb32e4f3468bb143bfac0e82f97d4805972a0d82d34697da6c6fa89925ce2"],"state_sha256":"1772c3aa2d8cf5ee333e99918896c14c37291c27938bc17e431d781dbb518b12"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5urybTQ7mMdSU/IBZACtPe2LHhxBWKnLaRVX1HwzYfYkIsgV3dcqJ5e92rS6MGzNDI3yu8ySd30Q2jWn/M/pAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-13T21:31:56.806354Z","bundle_sha256":"900508049ff389b201b001c9d42ea9cc7db5c81916763dfd34a88a2bb412e3e0"}}