{"document_id":"BLC-PDF-0003","slug":"stellar-consensus","title":"The Stellar Consensus Protocol: A Federated Model for Internet-level Consensus","authors":"David Mazières","year":2015,"date_label":"2015, as commonly cited. The library index truncates the title; the full title is used here. Bytes were not re-opened.","publisher":"Stellar Development Foundation","paper_type":"Design paper","category":"Consensus","topics":["Federated consensus"],"source_url":"https://www.stellar.org/papers/stellar-consensus-protocol.pdf","source_label":"stellar.org paper","legacy_pdf_path":"/pdf/stellar-consensus-protocol.pdf","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":"Historic library file. Not byte-compared with the publisher PDF.","doi":null,"rights_status":"Rights uncertain","source_status":"Historic library path, plus the publisher's paper page","use_status":"Legacy path remains. Full text is not republished.","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":"Mazières's paper gives a federated way to reach agreement: each node picks quorum slices, and safety depends on how those slices intersect.","canonical_url":"https://blockchainlab.com/research/corpus/papers/stellar-consensus","record_url":"https://blockchainlab.com/research/corpus/papers/stellar-consensus","study_url":null,"last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Concept","label":"Consensus","href":"/learn/concepts/consensus"},{"rel":"Different design","label":"Ripple consensus","href":"/research/corpus/papers/ripple-consensus"}]}