{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:M2EXHVG52Y4WQUDMCKMXZHIS3I","short_pith_number":"pith:M2EXHVG5","canonical_record":{"source":{"id":"2605.29128","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-05-27T21:40:10Z","cross_cats_sorted":[],"title_canon_sha256":"11313e4a1e044f361385f866f04cb482789e2a7145f8cbc84e71ac27e8d4dd12","abstract_canon_sha256":"480c1b964ffe88ad3df6d4d7967e48915d865417e87c359970c453d42a936a8b"},"schema_version":"1.0"},"canonical_sha256":"668973d4ddd63968506c12997c9d12da03066f45d887566c854f230fb0ef1b33","source":{"kind":"arxiv","id":"2605.29128","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.29128","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"arxiv_version","alias_value":"2605.29128v1","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29128","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"pith_short_12","alias_value":"M2EXHVG52Y4W","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"pith_short_16","alias_value":"M2EXHVG52Y4WQUDM","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"pith_short_8","alias_value":"M2EXHVG5","created_at":"2026-05-29T01:05:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:M2EXHVG52Y4WQUDMCKMXZHIS3I","target":"record","payload":{"canonical_record":{"source":{"id":"2605.29128","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-05-27T21:40:10Z","cross_cats_sorted":[],"title_canon_sha256":"11313e4a1e044f361385f866f04cb482789e2a7145f8cbc84e71ac27e8d4dd12","abstract_canon_sha256":"480c1b964ffe88ad3df6d4d7967e48915d865417e87c359970c453d42a936a8b"},"schema_version":"1.0"},"canonical_sha256":"668973d4ddd63968506c12997c9d12da03066f45d887566c854f230fb0ef1b33","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-29T01:05:19.717116Z","signature_b64":"T1IdYhUOgVE3ohNHtd7moUFpg+ZekRv7nk8upXysH1lBrG4k5JQn/WtpUJS93hkfrBzBo8ZrRUn37YPjbBoVBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"668973d4ddd63968506c12997c9d12da03066f45d887566c854f230fb0ef1b33","last_reissued_at":"2026-05-29T01:05:19.715457Z","signature_status":"signed_v1","first_computed_at":"2026-05-29T01:05:19.715457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.29128","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":"2026-05-29T01:05:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s1UY3PY8YillxI53Sek4G2WyCGPi3j9LHHct9Hlda6fm7ZEp1VhNAhhgiKsomqPrCr7GluM5WB1sxY7b1vqdBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T13:21:21.748799Z"},"content_sha256":"faf50854f1791f4797495f02243f1ccbc0d3ec949d3ffb6b35b554d252f8e4c3","schema_version":"1.0","event_id":"sha256:faf50854f1791f4797495f02243f1ccbc0d3ec949d3ffb6b35b554d252f8e4c3"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:M2EXHVG52Y4WQUDMCKMXZHIS3I","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Apertus LLM Family Expansion via Distillation and Quantization","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"Andrei Panferov, Dan Alistarh, Davit Melikidze, Martin Jaggi","submitted_at":"2026-05-27T21:40:10Z","abstract_excerpt":"The wide adoption of LLMs has led to their use in great variety of applications and scenarios, such as chatbot assistants and data annotation, creating the need for the models to satisfy certain budget and hardware constraints. This has led to the trend of LLMs being released in batches consisting of similar models of various sizes for the family of models to adhere to as wide of a range of constraints as possible. In this paper, we validate distillation and quantization as a cost-effective way to expand model families to new sizes and hardware formats. Based on the open-recipe Apertus 8B LLM,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29128","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/2605.29128/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":"2026-05-29T01:05:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1FM9X79E/jfCbQp4MGYUw94o82YksTDcppMakH9s/uToYsG4wAnAxFDVF9vLyh3mofYJG2t8LGRjnV/kyWFEDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T13:21:21.749167Z"},"content_sha256":"e0e8e427bbe83b3a8d000d28a3312b29a9fa57b910c414de6ce624d8fc55bfa7","schema_version":"1.0","event_id":"sha256:e0e8e427bbe83b3a8d000d28a3312b29a9fa57b910c414de6ce624d8fc55bfa7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/M2EXHVG52Y4WQUDMCKMXZHIS3I/bundle.json","state_url":"https://pith.science/pith/M2EXHVG52Y4WQUDMCKMXZHIS3I/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/M2EXHVG52Y4WQUDMCKMXZHIS3I/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":"2026-06-03T13:21:21Z","links":{"resolver":"https://pith.science/pith/M2EXHVG52Y4WQUDMCKMXZHIS3I","bundle":"https://pith.science/pith/M2EXHVG52Y4WQUDMCKMXZHIS3I/bundle.json","state":"https://pith.science/pith/M2EXHVG52Y4WQUDMCKMXZHIS3I/state.json","well_known_bundle":"https://pith.science/.well-known/pith/M2EXHVG52Y4WQUDMCKMXZHIS3I/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:M2EXHVG52Y4WQUDMCKMXZHIS3I","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":"480c1b964ffe88ad3df6d4d7967e48915d865417e87c359970c453d42a936a8b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-05-27T21:40:10Z","title_canon_sha256":"11313e4a1e044f361385f866f04cb482789e2a7145f8cbc84e71ac27e8d4dd12"},"schema_version":"1.0","source":{"id":"2605.29128","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.29128","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"arxiv_version","alias_value":"2605.29128v1","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.29128","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"pith_short_12","alias_value":"M2EXHVG52Y4W","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"pith_short_16","alias_value":"M2EXHVG52Y4WQUDM","created_at":"2026-05-29T01:05:19Z"},{"alias_kind":"pith_short_8","alias_value":"M2EXHVG5","created_at":"2026-05-29T01:05:19Z"}],"graph_snapshots":[{"event_id":"sha256:e0e8e427bbe83b3a8d000d28a3312b29a9fa57b910c414de6ce624d8fc55bfa7","target":"graph","created_at":"2026-05-29T01:05:19Z","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/2605.29128/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The wide adoption of LLMs has led to their use in great variety of applications and scenarios, such as chatbot assistants and data annotation, creating the need for the models to satisfy certain budget and hardware constraints. This has led to the trend of LLMs being released in batches consisting of similar models of various sizes for the family of models to adhere to as wide of a range of constraints as possible. In this paper, we validate distillation and quantization as a cost-effective way to expand model families to new sizes and hardware formats. Based on the open-recipe Apertus 8B LLM,","authors_text":"Andrei Panferov, Dan Alistarh, Davit Melikidze, Martin Jaggi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-05-27T21:40:10Z","title":"Apertus LLM Family Expansion via Distillation and Quantization"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.29128","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:faf50854f1791f4797495f02243f1ccbc0d3ec949d3ffb6b35b554d252f8e4c3","target":"record","created_at":"2026-05-29T01:05:19Z","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":"480c1b964ffe88ad3df6d4d7967e48915d865417e87c359970c453d42a936a8b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2026-05-27T21:40:10Z","title_canon_sha256":"11313e4a1e044f361385f866f04cb482789e2a7145f8cbc84e71ac27e8d4dd12"},"schema_version":"1.0","source":{"id":"2605.29128","kind":"arxiv","version":1}},"canonical_sha256":"668973d4ddd63968506c12997c9d12da03066f45d887566c854f230fb0ef1b33","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"668973d4ddd63968506c12997c9d12da03066f45d887566c854f230fb0ef1b33","first_computed_at":"2026-05-29T01:05:19.715457Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-29T01:05:19.715457Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"T1IdYhUOgVE3ohNHtd7moUFpg+ZekRv7nk8upXysH1lBrG4k5JQn/WtpUJS93hkfrBzBo8ZrRUn37YPjbBoVBw==","signature_status":"signed_v1","signed_at":"2026-05-29T01:05:19.717116Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.29128","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:faf50854f1791f4797495f02243f1ccbc0d3ec949d3ffb6b35b554d252f8e4c3","sha256:e0e8e427bbe83b3a8d000d28a3312b29a9fa57b910c414de6ce624d8fc55bfa7"],"state_sha256":"512fff4d15a8a5a403478479ddb69f9e9d265e6aeacf2efa98c5d44e0246c0ad"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cUCte4Cfrolf6sA6I2DikYVzvnCJk40E9ZFbYqsLbU9dDvosYZ2RlXHfNGc5OCJgxSZgXXAw0q1laeMcfxfbDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T13:21:21.751168Z","bundle_sha256":"c2266caf28346ed732e6acc5633dd7cb83c34734ca62b6a7ca17580e2c457955"}}