{"document_id":"BLC-STUDY-0534","slug":"bip-320","title":"nVersion bits for general purpose use","authors":"BtcDrak","year":2018,"date_label":"2018","publisher":"BtcDrak","paper_type":"Design paper","category":"Privacy","topics":["Privacy"],"source_url":"https://bips.dev/320","source_label":"BIP 320","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 2018 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":"BIP 320, nVersion bits for general purpose use. This BIP reserves 16 bits of the block header nVersion field for general purpose use and removes their meaning for the purpose of version bits soft-fork signalling.","canonical_url":"https://blockchainlab.com/whitepaper/bip-320","record_url":"https://blockchainlab.com/research/corpus/papers/bip-320","study_url":"https://blockchainlab.com/whitepaper/bip-320","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"BIP 320 study","href":"/whitepaper/bip-320"},{"rel":"Related paper","label":"Groth16","href":"/whitepaper/groth16"},{"rel":"Related paper","label":"Bulletproofs","href":"/whitepaper/bulletproofs"},{"rel":"Related paper","label":"Taproot","href":"/whitepaper/taproot"}]}