{"document_id":"BLC-STUDY-0291","slug":"eip-152","title":"Add BLAKE2 compression function `F` precompile","authors":"Tjaden Hess , Matt Luongo , Piotr Dyraga , James Hancock","year":2016,"date_label":"2016","publisher":"Tjaden Hess , Matt Luongo , Piotr Dyraga , James Hancock","paper_type":"Design paper","category":"Interoperability","topics":["Interoperability"],"source_url":"https://eips.ethereum.org/EIPS/eip-152","source_label":"EIP 152","legacy_pdf_path":null,"sha256":null,"sha256_note":"No hash is published. This build does not store those PDF bytes, so a checksum would be invented. Where a legacy path exists, it points at the Internet Archive copy of the old library.","version":"Source cited by the 2016 study. The study is the reading. This page does not add a second essay.","doi":null,"rights_status":"Official external source only","source_status":"Official source","use_status":"Metadata and commentary only. The reading is the study page.","licence":null,"licence_label":"No licence recorded. Rights status under review.","full_text":null,"full_text_reason":"Full text is not published on this page. Public availability is not a licence to republish a document. Blockchain Lab has not recorded a licence that permits an HTML transcription, a training set, or a retrieval corpus of the paper. Text on this page is Blockchain Lab's own wording, or a pointer to a study that is also Blockchain Lab's wording.","editorial_line":"EIP 152, Add BLAKE2 compression function `F` precompile. This EIP will enable the BLAKE2b hash function and other higher-round 64-bit BLAKE2 variants to run cheaply on the EVM, allowing easier interoperability between Ethereum and Zcash as well as other Equihash-based PoW coins.","canonical_url":"https://blockchainlab.com/whitepaper/eip-152","record_url":"https://blockchainlab.com/research/corpus/papers/eip-152","study_url":"https://blockchainlab.com/whitepaper/eip-152","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"EIP 152 study","href":"/whitepaper/eip-152"},{"rel":"Related paper","label":"Lightning","href":"/whitepaper/lightning"},{"rel":"Related paper","label":"IBC","href":"/whitepaper/ibc"},{"rel":"Related paper","label":"Atomic swaps","href":"/whitepaper/atomic-swaps"}]}