{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:5SSMJBCKUYMOCBRJY6IOWNBAGL","short_pith_number":"pith:5SSMJBCK","canonical_record":{"source":{"id":"2606.12280","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-10T16:19:49Z","cross_cats_sorted":[],"title_canon_sha256":"366bac06b37502131b961e1c8091e283c918d829a3c7d14fc1a6b2d3bd26fc88","abstract_canon_sha256":"3964dd3242024a9bb2e2d280a3e32212e5a1ea5b0981c62c59178f7ebb64c9e9"},"schema_version":"1.0"},"canonical_sha256":"eca4c4844aa618e10629c790eb342032d8f4a9891f50f9cd4bc7fa8707c023b8","source":{"kind":"arxiv","id":"2606.12280","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.12280","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"arxiv_version","alias_value":"2606.12280v1","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.12280","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"pith_short_12","alias_value":"5SSMJBCKUYMO","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"pith_short_16","alias_value":"5SSMJBCKUYMOCBRJ","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"pith_short_8","alias_value":"5SSMJBCK","created_at":"2026-06-11T01:10:59Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:5SSMJBCKUYMOCBRJY6IOWNBAGL","target":"record","payload":{"canonical_record":{"source":{"id":"2606.12280","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-10T16:19:49Z","cross_cats_sorted":[],"title_canon_sha256":"366bac06b37502131b961e1c8091e283c918d829a3c7d14fc1a6b2d3bd26fc88","abstract_canon_sha256":"3964dd3242024a9bb2e2d280a3e32212e5a1ea5b0981c62c59178f7ebb64c9e9"},"schema_version":"1.0"},"canonical_sha256":"eca4c4844aa618e10629c790eb342032d8f4a9891f50f9cd4bc7fa8707c023b8","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-11T01:10:59.392136Z","signature_b64":"Hmk7FrqVOkoTiZp+Gup5EFYZTo2kzYweEQLF+ZNr918MZfxZTnVqlkPlWxX97pFNsk3t1slJb7YC/IE8rj0LDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eca4c4844aa618e10629c790eb342032d8f4a9891f50f9cd4bc7fa8707c023b8","last_reissued_at":"2026-06-11T01:10:59.391392Z","signature_status":"signed_v1","first_computed_at":"2026-06-11T01:10:59.391392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.12280","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":"2026-06-11T01:10:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6LdKAsivUbKZxq1d+mFfb5b0a4x35jYAm+c/z7k3+yYAHA1mLwdPAujPgqxDnEAi4ddtWGNxjnrG01uLhtm6AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T01:59:32.530366Z"},"content_sha256":"ea661365120ae49aa3c4b367320efa0941b09b1d58dd266a2aa1f6f86e9351d0","schema_version":"1.0","event_id":"sha256:ea661365120ae49aa3c4b367320efa0941b09b1d58dd266a2aa1f6f86e9351d0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:5SSMJBCKUYMOCBRJY6IOWNBAGL","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Holding the FP8 Quality Ceiling at 8-Bit Weights and Activations: INT8 and GGUF Post-Training Quantization of Ideogram 4.0 for Consumer GPUs","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"Ali Asaria, Deep Gandhi, Tony Salomone","submitted_at":"2026-06-10T16:19:49Z","abstract_excerpt":"Post-training quantization lets large text-to-image diffusion transformers run on consumer GPUs, yet the hardware-specific trade-offs are seldom measured directly. We quantize Ideogram 4.0 - a 9.3B flow-matching diffusion transformer (DiT), shipped as two separate-weight copies of a single-stream 34-layer backbone for classifier-free guidance and conditioned by a Qwen3-VL-8B encoder - for Ampere RTX 3090 GPUs, which lack FP8 tensor cores. Our INT8 W8A8 recipe (per-channel weights, per-token dynamic activations, SmoothQuant, and mixed-precision protection of a small high-fragility layer set) ho"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.12280","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/2606.12280/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":"2026-06-11T01:10:59Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VDMi3ZGZqgaw0HC3Qdk583PBolvzJWi97vp53TybsOImg6KraPCc2r7yckzfx/3H7nlk+15HZ+/diJJp04zcCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-30T01:59:32.530756Z"},"content_sha256":"efe05bba066b89443633dafa0160086b0aa30fd77ee26c1344e5de32ddcfd1bb","schema_version":"1.0","event_id":"sha256:efe05bba066b89443633dafa0160086b0aa30fd77ee26c1344e5de32ddcfd1bb"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5SSMJBCKUYMOCBRJY6IOWNBAGL/bundle.json","state_url":"https://pith.science/pith/5SSMJBCKUYMOCBRJY6IOWNBAGL/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5SSMJBCKUYMOCBRJY6IOWNBAGL/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":"2026-06-30T01:59:32Z","links":{"resolver":"https://pith.science/pith/5SSMJBCKUYMOCBRJY6IOWNBAGL","bundle":"https://pith.science/pith/5SSMJBCKUYMOCBRJY6IOWNBAGL/bundle.json","state":"https://pith.science/pith/5SSMJBCKUYMOCBRJY6IOWNBAGL/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5SSMJBCKUYMOCBRJY6IOWNBAGL/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5SSMJBCKUYMOCBRJY6IOWNBAGL","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":"3964dd3242024a9bb2e2d280a3e32212e5a1ea5b0981c62c59178f7ebb64c9e9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-10T16:19:49Z","title_canon_sha256":"366bac06b37502131b961e1c8091e283c918d829a3c7d14fc1a6b2d3bd26fc88"},"schema_version":"1.0","source":{"id":"2606.12280","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.12280","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"arxiv_version","alias_value":"2606.12280v1","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.12280","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"pith_short_12","alias_value":"5SSMJBCKUYMO","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"pith_short_16","alias_value":"5SSMJBCKUYMOCBRJ","created_at":"2026-06-11T01:10:59Z"},{"alias_kind":"pith_short_8","alias_value":"5SSMJBCK","created_at":"2026-06-11T01:10:59Z"}],"graph_snapshots":[{"event_id":"sha256:efe05bba066b89443633dafa0160086b0aa30fd77ee26c1344e5de32ddcfd1bb","target":"graph","created_at":"2026-06-11T01:10:59Z","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/2606.12280/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Post-training quantization lets large text-to-image diffusion transformers run on consumer GPUs, yet the hardware-specific trade-offs are seldom measured directly. We quantize Ideogram 4.0 - a 9.3B flow-matching diffusion transformer (DiT), shipped as two separate-weight copies of a single-stream 34-layer backbone for classifier-free guidance and conditioned by a Qwen3-VL-8B encoder - for Ampere RTX 3090 GPUs, which lack FP8 tensor cores. Our INT8 W8A8 recipe (per-channel weights, per-token dynamic activations, SmoothQuant, and mixed-precision protection of a small high-fragility layer set) ho","authors_text":"Ali Asaria, Deep Gandhi, Tony Salomone","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-10T16:19:49Z","title":"Holding the FP8 Quality Ceiling at 8-Bit Weights and Activations: INT8 and GGUF Post-Training Quantization of Ideogram 4.0 for Consumer GPUs"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.12280","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:ea661365120ae49aa3c4b367320efa0941b09b1d58dd266a2aa1f6f86e9351d0","target":"record","created_at":"2026-06-11T01:10:59Z","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":"3964dd3242024a9bb2e2d280a3e32212e5a1ea5b0981c62c59178f7ebb64c9e9","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-10T16:19:49Z","title_canon_sha256":"366bac06b37502131b961e1c8091e283c918d829a3c7d14fc1a6b2d3bd26fc88"},"schema_version":"1.0","source":{"id":"2606.12280","kind":"arxiv","version":1}},"canonical_sha256":"eca4c4844aa618e10629c790eb342032d8f4a9891f50f9cd4bc7fa8707c023b8","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"eca4c4844aa618e10629c790eb342032d8f4a9891f50f9cd4bc7fa8707c023b8","first_computed_at":"2026-06-11T01:10:59.391392Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-11T01:10:59.391392Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Hmk7FrqVOkoTiZp+Gup5EFYZTo2kzYweEQLF+ZNr918MZfxZTnVqlkPlWxX97pFNsk3t1slJb7YC/IE8rj0LDA==","signature_status":"signed_v1","signed_at":"2026-06-11T01:10:59.392136Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.12280","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ea661365120ae49aa3c4b367320efa0941b09b1d58dd266a2aa1f6f86e9351d0","sha256:efe05bba066b89443633dafa0160086b0aa30fd77ee26c1344e5de32ddcfd1bb"],"state_sha256":"5a39ea7bdeebadfb60a156eb6a3b3b64231f5072aead0f1b2d7a1a2caf8e2093"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"NpI38KdA0gznF6KMS/V8A7e+vDGyQqrxYxZgaLQ9GWjipFp95pXSB0g23fbMR/cJWgKZKIlVCFswNvhbnoxMDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-30T01:59:32.532795Z","bundle_sha256":"a048e358391f48d7fa96099fe46525b31e4edd5057df465e47864e1d76092c0a"}}