{"document_id":"BLC-STUDY-0003","slug":"zerocash","title":"Zerocash: Decentralized Anonymous Payments from Bitcoin","authors":"Eli Ben-Sasson, Alessandro Chiesa, Christina Garman, Matthew Green, Ian Miers, Eran Tromer, Madars Virza","year":2014,"date_label":"2014","publisher":"Eli Ben-Sasson, Alessandro Chiesa, Christina Garman, Matthew Green, Ian Miers, Eran Tromer, Madars Virza","paper_type":"Design paper","category":"Privacy","topics":["Privacy"],"source_url":"https://zerocash-project.org/media/pdf/zerocash-extended-20140518.pdf","source_label":"Zerocash extended paper","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 2014 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":"The 2014 paper that showed how a payment ledger can hide sender, receiver and amount, while still letting the network check that coins were not created or double-spent. Zcash is an implementation of this line of work, not a co-author of the paper.","canonical_url":"https://blockchainlab.com/whitepaper/zerocash","record_url":"https://blockchainlab.com/research/corpus/papers/zerocash","study_url":"https://blockchainlab.com/whitepaper/zerocash","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"Zerocash study","href":"/whitepaper/zerocash"},{"rel":"Related paper","label":"Zerocoin","href":"/whitepaper/zerocoin"},{"rel":"Related paper","label":"CryptoNote","href":"/whitepaper/cryptonote"},{"rel":"Related paper","label":"Secret Network","href":"/whitepaper/enigma"}]}