{"document_id":"BLC-PDF-0004","slug":"pegged-sidechains","title":"Enabling Blockchain Innovations with Pegged Sidechains","authors":"Back et al.","year":2014,"date_label":"2014, as commonly cited for this title. Not re-read from the file bytes in this build.","publisher":"The authors","paper_type":"Design paper","category":"Scaling","topics":["Sidechains","Bitcoin"],"source_url":"https://blockstream.com/sidechains.pdf","source_label":"Commonly cited PDF","legacy_pdf_path":"/pdf/sidechains1.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 sidechains1.pdf.","doi":null,"rights_status":"Rights uncertain","source_status":"Historic library path","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":"The library holds the pegged-sidechains paper associated with Adam Back and co-authors: a chain beside Bitcoin, with a two-way peg so coins can move across and back.","canonical_url":"https://blockchainlab.com/research/corpus/papers/pegged-sidechains","record_url":"https://blockchainlab.com/research/corpus/papers/pegged-sidechains","study_url":null,"last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Related risk","label":"Where bridges fail","href":"/learn/failures/bridges"},{"rel":"Concept","label":"Bridge","href":"/learn/concepts/bridge"},{"rel":"Base chain","label":"Bitcoin","href":"/research/corpus/papers/bitcoin"}]}