{"document_id":"BLC-STUDY-0199","slug":"bip174","title":"Partially Signed Bitcoin Transactions","authors":"Andrew Chow","year":2017,"date_label":"2017","publisher":"Andrew Chow","paper_type":"Design paper","category":"Markets","topics":["Markets"],"source_url":"https://github.com/bitcoin/bips/blob/master/bip-0174.mediawiki","source_label":"BIP 174","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 2017 study. The study is the reading. This page does not add a second essay.","doi":null,"rights_status":"Licensed for redistribution","source_status":"Official source","use_status":"The upstream file is mirrored at /primary/bip174.md under BSD-2-Clause. The canonical file remains the source URL. The desk study is separate.","licence":"BSD-2-Clause","licence_label":"BSD-2-Clause","full_text":"https://blockchainlab.com/primary/bip174.md","full_text_reason":"Mirrored from the upstream file under BSD-2-Clause. Desk wording is not part of that licence and is not a training grant.","repository":"https://github.com/bitcoin/bips","editorial_line":"A PSBT is a standard container for a transaction, the inputs' previous outputs, and the partial signatures. Roles are creator, updater, signer, combiner, finaliser and extractor.","canonical_url":"https://blockchainlab.com/whitepaper/bip174","record_url":"https://blockchainlab.com/research/corpus/papers/bip174","study_url":"https://blockchainlab.com/whitepaper/bip174","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"BIP 174 study","href":"/whitepaper/bip174"},{"rel":"Related paper","label":"BIP 141","href":"/whitepaper/bip141"},{"rel":"Related paper","label":"Taproot","href":"/whitepaper/taproot"}]}