placeholderlabs/pool-academic

Placeholder Labs Academic Pool

Public organic academic pretraining pool with 41,112,360 documents and 456,510,356,112 Dolma-2 tokens.

• Common Pile peS2o Filtered multidisciplinary research papers
• Dolma 3 olmOCR Science PDFs (score >=0.30, academic evidence, clean extraction)
• Common Pile LibreTexts Filtered open textbook sections
• quality_bin is null; source scores are retained only as source-specific evidence
• labels: document type and publication year
• exact dedup plus verified cross-source near dedup; MinHash alone never deletes
• inline citations and bibliographies are preserved

Actual source totals

• allenai/dolma3_pool: 35,205,487 documents, 418,156,445,614 Dolma-2 tokens
• common-pile/libretexts_filtered: 38,513 documents, 80,583,538 Dolma-2 tokens
• common-pile/peS2o_filtered: 5,868,360 documents, 38,273,326,960 Dolma-2 tokens

The selected survivors represent 294,486 additional exact or verified-near duplicate rows that were removed. Licence row counts and the immutable ID-set digest are recorded in RELEASE.json.

The odc-by-1.0 value on olmOCR rows describes the upstream Dolma dataset licence; it is not a blanket claim that every underlying PDF is openly copyrighted. peS2o and LibreTexts retain their available per-document licence evidence.

See RELEASE.json for the immutable file and ID-set manifest.

Evaluation decontamination

The final corpus was screened after cross-source deduplication. Complete documents were excluded on a policy match; the decontamination configuration contains the auditable exclusion ledger without raw evaluation prompts.

• Removed documents: 5,047
• Removed Dolma-2 tokens: 422,922,699
• Evaluation suite SHA-256: 525654818930ced22f95f93f7e24325a7cce49efd463d7585e9a7ba2ac067d82
• Suite manifest SHA-256: c234ab7b9cc1ed102fa128e0feb9d8bc31e659730295a4392efd581bae5b5049
• Policy SHA-256: 342330c977d87a36916af484bbbe33f069cb9873e3817868d2953c18583cd729
• Decon commit: 4cdcc5696ed047bf7d0d48b8d86a274f5a06c0a6
• Scanner binary SHA-256: 30653d396226e5cb4fcca602e7f36805cf2793a623917b1ef68aa1123ddb4dcb