{"document_id":"BLC-STUDY-0717","slug":"chia-consensus","title":"Chia: proofs of space and time as a consensus","authors":"Bram Cohen and the Chia Network","year":2019,"date_label":"2019","publisher":"Bram Cohen and the Chia Network","paper_type":"Design paper","category":"Consensus","topics":["Consensus"],"source_url":"https://docs.chia.net/chia-blockchain/consensus/consensus-intro","source_label":"Chia consensus introduction","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 2019 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.","repository":null,"editorial_line":"Chia publishes consensus from proofs of space, checked across time, so farmers allocate disk rather than continuous hash power.","canonical_url":"https://blockchainlab.com/whitepaper/chia-consensus","record_url":"https://blockchainlab.com/research/corpus/papers/chia-consensus","study_url":"https://blockchainlab.com/whitepaper/chia-consensus","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"Chia protocol study","href":"/whitepaper/chia-consensus"},{"rel":"Related paper","label":"Proofs of space","href":"/whitepaper/proofs-of-space"},{"rel":"Related paper","label":"Bitcoin","href":"/whitepaper/bitcoin-nakamoto"},{"rel":"Related paper","label":"Filecoin","href":"/whitepaper/filecoin-2017"}]}