{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:IR5DQQICYTQ2JQDSJA5Z6RYS5T","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":"630120d64eb6c9b53ca2cf28c4e151941a37d787df17328714b7e2571b0a73ce","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2026-06-18T09:29:28Z","title_canon_sha256":"9de390a03f8ceb70673c789c28f2c9f2e02a4662f1c7b09809f439664b9b5c1e"},"schema_version":"1.0","source":{"id":"2606.19989","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.19989","created_at":"2026-06-19T16:12:59Z"},{"alias_kind":"arxiv_version","alias_value":"2606.19989v1","created_at":"2026-06-19T16:12:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.19989","created_at":"2026-06-19T16:12:59Z"},{"alias_kind":"pith_short_12","alias_value":"IR5DQQICYTQ2","created_at":"2026-06-19T16:12:59Z"},{"alias_kind":"pith_short_16","alias_value":"IR5DQQICYTQ2JQDS","created_at":"2026-06-19T16:12:59Z"},{"alias_kind":"pith_short_8","alias_value":"IR5DQQIC","created_at":"2026-06-19T16:12:59Z"}],"graph_snapshots":[{"event_id":"sha256:77264d3296d7ac723b16d785d4c3398d2423e0af3a22ea2ebf1672ea85906bb7","target":"graph","created_at":"2026-06-19T16:12:59Z","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/2606.19989/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Modern LLM training breaks a core assumption behind offline batch samplers: the true training cost of a sample is only observable after preprocessing, augmentation, templating, tokenization, and multimodal visual-token expansion. Unless one pays for a preprocessing- and augmentation-dependent length cache, batch construction is therefore blind to the quantity that determines padding, memory use, and GPU saturation. We introduce Online Dynamic Batching (ODB), a DataLoader-side drop-in system that moves batch formation to this point of accurate observability while preserving DDP step alignment. ","authors_text":"Dian Li, Jiahong Yan, Yaoru Wang, Zekun Wang","cross_cats":["cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2026-06-18T09:29:28Z","title":"Online Dynamic Batching with Formal Guarantees for LLM Training"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.19989","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":"sha256:9aeb958923ecb7f84cd86e9cb743ff2b873e61a35324451b80b6f7fe1be92069","target":"record","created_at":"2026-06-19T16:12:59Z","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":"630120d64eb6c9b53ca2cf28c4e151941a37d787df17328714b7e2571b0a73ce","cross_cats_sorted":["cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.DC","submitted_at":"2026-06-18T09:29:28Z","title_canon_sha256":"9de390a03f8ceb70673c789c28f2c9f2e02a4662f1c7b09809f439664b9b5c1e"},"schema_version":"1.0","source":{"id":"2606.19989","kind":"arxiv","version":1}},"canonical_sha256":"447a384102c4e1a4c072483b9f4712ecf8ff39114a1f61aac92a59287e88e512","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"447a384102c4e1a4c072483b9f4712ecf8ff39114a1f61aac92a59287e88e512","first_computed_at":"2026-06-19T16:12:59.933082Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-19T16:12:59.933082Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"31qYLTtatz9+gs9XPrhxMLfTQaAdQQVU7EJuYg0rqhASGA69FezvLDtwC0DiX9NV/MqS39j2a2bMZiKouKmEDQ==","signature_status":"signed_v1","signed_at":"2026-06-19T16:12:59.933441Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.19989","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9aeb958923ecb7f84cd86e9cb743ff2b873e61a35324451b80b6f7fe1be92069","sha256:77264d3296d7ac723b16d785d4c3398d2423e0af3a22ea2ebf1672ea85906bb7"],"state_sha256":"b0f01850ffe4e2c3e3490f4fbce1512d258d99b1b768480527b6c5c5c4e11446"}