{"document_id":"BLC-STUDY-0020","slug":"diem","title":"The Diem Blockchain","authors":"Diem Association engineering group","year":2020,"date_label":"2020","publisher":"Diem Association engineering group","paper_type":"Design paper","category":"Consensus","topics":["Consensus"],"source_url":"https://developers.diem.com/docs/technical-papers/the-diem-blockchain-paper/","source_label":"Diem technical 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 2020 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 technical paper for the Libra, later Diem, payment chain: a permissioned BFT ledger, a Move language for resources, and a reserve-backed currency proposal. The project was wound down in 2022. The paper still matters because Move, and the account model Aptos and Sui started from, was specified here.","canonical_url":"https://blockchainlab.com/whitepaper/diem","record_url":"https://blockchainlab.com/research/corpus/papers/diem","study_url":"https://blockchainlab.com/whitepaper/diem","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"Diem study","href":"/whitepaper/diem"},{"rel":"Related paper","label":"Aptos","href":"/whitepaper/aptos"},{"rel":"Related paper","label":"Sui","href":"/whitepaper/sui"},{"rel":"Related paper","label":"Maker","href":"/whitepaper/maker-dai"}]}