{"document_id":"BLC-STUDY-0109","slug":"perun","title":"Perun: Virtual Payment Hubs over Cryptocurrencies","authors":"Stefan Dziembowski, Lisa Eckey, Sebastian Faust and Daniel Malinowski","year":2017,"date_label":"2017","publisher":"Stefan Dziembowski, Lisa Eckey, Sebastian Faust and Daniel Malinowski","paper_type":"Design paper","category":"Scaling","topics":["Scaling"],"source_url":"https://eprint.iacr.org/2017/635","source_label":"ePrint 2017/635","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 2017 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":"Lightning routes each payment through the intermediaries. Perun asks those intermediaries to set up a virtual channel and then step out of the individual payments. The paper gives the construction for one hub, on a chain that can run the contracts.","canonical_url":"https://blockchainlab.com/whitepaper/perun","record_url":"https://blockchainlab.com/research/corpus/papers/perun","study_url":"https://blockchainlab.com/whitepaper/perun","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"Perun study","href":"/whitepaper/perun"},{"rel":"Related paper","label":"Lightning","href":"/whitepaper/lightning"},{"rel":"Related paper","label":"Sprites","href":"/whitepaper/sprites"},{"rel":"Related paper","label":"Atomic swaps","href":"/whitepaper/atomic-swaps"}]}