{"document_id":"BLC-STUDY-0658","slug":"avail-da","title":"Avail: data availability with validity proofs of the data commitment","authors":"Avail","year":2023,"date_label":"2023","publisher":"Avail","paper_type":"Design paper","category":"Scaling","topics":["Scaling"],"source_url":"https://docs.availproject.org/","source_label":"Avail documentation","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 2023 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":"Avail publishes a data-availability chain whose commitment a client can check with a validity proof, so the client is not only trusting a committee's signature that the data exists.","canonical_url":"https://blockchainlab.com/whitepaper/avail-da","record_url":"https://blockchainlab.com/research/corpus/papers/avail-da","study_url":"https://blockchainlab.com/whitepaper/avail-da","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"Avail DA study","href":"/whitepaper/avail-da"},{"rel":"Related paper","label":"Celestia","href":"/whitepaper/celestia-da-spec"},{"rel":"Related paper","label":"Celestia","href":"/whitepaper/lazyledger"},{"rel":"Related paper","label":"EigenDA","href":"/whitepaper/eigen-da"}]}