{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:QVHIS6CX6553HDXVZZAK77F4LU","short_pith_number":"pith:QVHIS6CX","canonical_record":{"source":{"id":"2605.31463","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-05-29T15:52:58Z","cross_cats_sorted":["cs.AI","cs.CL","cs.DC"],"title_canon_sha256":"d247da3fcec46e57bd4f26094775f388ec38dc41960ee2b062cbe306883ef34e","abstract_canon_sha256":"3999dfb3d7f3df72d8b249478703b6e53134d3ce4095fe64db2bcf4c0f66bb75"},"schema_version":"1.0"},"canonical_sha256":"854e897857f77bb38ef5ce40affcbc5d31b9a18f5a28c736692c31e013f4fb9f","source":{"kind":"arxiv","id":"2605.31463","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.31463","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"arxiv_version","alias_value":"2605.31463v1","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.31463","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"pith_short_12","alias_value":"QVHIS6CX6553","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"pith_short_16","alias_value":"QVHIS6CX6553HDXV","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"pith_short_8","alias_value":"QVHIS6CX","created_at":"2026-06-01T02:04:07Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:QVHIS6CX6553HDXVZZAK77F4LU","target":"record","payload":{"canonical_record":{"source":{"id":"2605.31463","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-05-29T15:52:58Z","cross_cats_sorted":["cs.AI","cs.CL","cs.DC"],"title_canon_sha256":"d247da3fcec46e57bd4f26094775f388ec38dc41960ee2b062cbe306883ef34e","abstract_canon_sha256":"3999dfb3d7f3df72d8b249478703b6e53134d3ce4095fe64db2bcf4c0f66bb75"},"schema_version":"1.0"},"canonical_sha256":"854e897857f77bb38ef5ce40affcbc5d31b9a18f5a28c736692c31e013f4fb9f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-01T02:04:07.305346Z","signature_b64":"ACQzi3LwmuOg6tMlqXrNEE2YT2o8bjktBmko2LNbR5/QF24lVrWlqp5iNdYvBYUdAvFZWE/DhoaxgA4motQFBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"854e897857f77bb38ef5ce40affcbc5d31b9a18f5a28c736692c31e013f4fb9f","last_reissued_at":"2026-06-01T02:04:07.304578Z","signature_status":"signed_v1","first_computed_at":"2026-06-01T02:04:07.304578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.31463","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":"2026-06-01T02:04:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"oGnx3iKNm+kC7WxNS1+lKC11kHrWlVX8S0tV3D1WchK5lpXIk366xtq4KCs9q1VQp/KlJ5sBdx2S6Yzc7EzCDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T13:22:09.736782Z"},"content_sha256":"2edda15763905c7f5c9d60c99d6709bcb2de0424c849c6a0d51f063aadc7b116","schema_version":"1.0","event_id":"sha256:2edda15763905c7f5c9d60c99d6709bcb2de0424c849c6a0d51f063aadc7b116"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:QVHIS6CX6553HDXVZZAK77F4LU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"PithTrain: A Compact and Agent-Native MoE Training System","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.AI","cs.CL","cs.DC"],"primary_cat":"cs.LG","authors_text":"Akaash R. Parthasarathy, Chenyan Xiong, Hao Kang, Haozhan Tang, Junru Shao, Ruihang Lai, Tianqi Chen, Todd C. Mowry, Zichun Yu","submitted_at":"2026-05-29T15:52:58Z","abstract_excerpt":"Mixture-of-Experts (MoE) has become the dominant architecture for frontier language models. To meet this demand, production frameworks have built optimized MoE training stacks over years of engineering effort. Yet evolving these stacks for new architectures and system optimizations remains expensive. With the rise of AI coding agents, they could automate parts of training-framework development and accelerate this evolution. But applying them to these existing frameworks carries hidden costs, invisible to today's throughput-only evaluations. We name this missing dimension agent-task efficiency "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.31463","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/2605.31463/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":"2026-06-01T02:04:07Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"x6MzNreiSBDevr5QgtOPySo7SrgRT2D4tGbPWnGWwwKBCk48krFgIbgqf8uC7qFhhHqtzTU6TEf4wlqyD3nmDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T13:22:09.737448Z"},"content_sha256":"912ff4486cded81a7507edcd5b4ddfec334e5fa36575c1e4e88cd644d7bfb1f1","schema_version":"1.0","event_id":"sha256:912ff4486cded81a7507edcd5b4ddfec334e5fa36575c1e4e88cd644d7bfb1f1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QVHIS6CX6553HDXVZZAK77F4LU/bundle.json","state_url":"https://pith.science/pith/QVHIS6CX6553HDXVZZAK77F4LU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QVHIS6CX6553HDXVZZAK77F4LU/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":"2026-06-06T13:22:09Z","links":{"resolver":"https://pith.science/pith/QVHIS6CX6553HDXVZZAK77F4LU","bundle":"https://pith.science/pith/QVHIS6CX6553HDXVZZAK77F4LU/bundle.json","state":"https://pith.science/pith/QVHIS6CX6553HDXVZZAK77F4LU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QVHIS6CX6553HDXVZZAK77F4LU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:QVHIS6CX6553HDXVZZAK77F4LU","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":"3999dfb3d7f3df72d8b249478703b6e53134d3ce4095fe64db2bcf4c0f66bb75","cross_cats_sorted":["cs.AI","cs.CL","cs.DC"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-05-29T15:52:58Z","title_canon_sha256":"d247da3fcec46e57bd4f26094775f388ec38dc41960ee2b062cbe306883ef34e"},"schema_version":"1.0","source":{"id":"2605.31463","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.31463","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"arxiv_version","alias_value":"2605.31463v1","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.31463","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"pith_short_12","alias_value":"QVHIS6CX6553","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"pith_short_16","alias_value":"QVHIS6CX6553HDXV","created_at":"2026-06-01T02:04:07Z"},{"alias_kind":"pith_short_8","alias_value":"QVHIS6CX","created_at":"2026-06-01T02:04:07Z"}],"graph_snapshots":[{"event_id":"sha256:912ff4486cded81a7507edcd5b4ddfec334e5fa36575c1e4e88cd644d7bfb1f1","target":"graph","created_at":"2026-06-01T02:04:07Z","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/2605.31463/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Mixture-of-Experts (MoE) has become the dominant architecture for frontier language models. To meet this demand, production frameworks have built optimized MoE training stacks over years of engineering effort. Yet evolving these stacks for new architectures and system optimizations remains expensive. With the rise of AI coding agents, they could automate parts of training-framework development and accelerate this evolution. But applying them to these existing frameworks carries hidden costs, invisible to today's throughput-only evaluations. We name this missing dimension agent-task efficiency ","authors_text":"Akaash R. Parthasarathy, Chenyan Xiong, Hao Kang, Haozhan Tang, Junru Shao, Ruihang Lai, Tianqi Chen, Todd C. Mowry, Zichun Yu","cross_cats":["cs.AI","cs.CL","cs.DC"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-05-29T15:52:58Z","title":"PithTrain: A Compact and Agent-Native MoE Training System"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.31463","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":"sha256:2edda15763905c7f5c9d60c99d6709bcb2de0424c849c6a0d51f063aadc7b116","target":"record","created_at":"2026-06-01T02:04:07Z","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":"3999dfb3d7f3df72d8b249478703b6e53134d3ce4095fe64db2bcf4c0f66bb75","cross_cats_sorted":["cs.AI","cs.CL","cs.DC"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-05-29T15:52:58Z","title_canon_sha256":"d247da3fcec46e57bd4f26094775f388ec38dc41960ee2b062cbe306883ef34e"},"schema_version":"1.0","source":{"id":"2605.31463","kind":"arxiv","version":1}},"canonical_sha256":"854e897857f77bb38ef5ce40affcbc5d31b9a18f5a28c736692c31e013f4fb9f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"854e897857f77bb38ef5ce40affcbc5d31b9a18f5a28c736692c31e013f4fb9f","first_computed_at":"2026-06-01T02:04:07.304578Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-01T02:04:07.304578Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ACQzi3LwmuOg6tMlqXrNEE2YT2o8bjktBmko2LNbR5/QF24lVrWlqp5iNdYvBYUdAvFZWE/DhoaxgA4motQFBw==","signature_status":"signed_v1","signed_at":"2026-06-01T02:04:07.305346Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.31463","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2edda15763905c7f5c9d60c99d6709bcb2de0424c849c6a0d51f063aadc7b116","sha256:912ff4486cded81a7507edcd5b4ddfec334e5fa36575c1e4e88cd644d7bfb1f1"],"state_sha256":"4c0dedec5d88c93fa1f73648bf375a4f46ac98451b2246c2109f7d0e11e212c7"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"aua1XZFDuDVCBzx/v4skKRv7nYG3LXTXvO1DKjV0tWGSqt+V+lkdUcw3dFpiLblsuGZsogGo3rWFVbtEKRYUDA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T13:22:09.740839Z","bundle_sha256":"679c2a5f56ce06ef9e798581f009711e4b482b70446ab6fbb7eb906e635f69b8"}}