{"document_id":"BLC-STUDY-0404","slug":"erc-2612","title":"Permit Extension for EIP-20 Signed Approvals","authors":"Martin Lundfall","year":2020,"date_label":"2020","publisher":"Martin Lundfall","paper_type":"Design paper","category":"Scaling","topics":["Scaling"],"source_url":"https://eips.ethereum.org/EIPS/eip-2612","source_label":"ERC 2612","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 2020 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":"ERC 2612, Permit Extension for EIP-20 Signed Approvals. Arguably one of the main reasons for the success of EIP-20 tokens lies in the interplay between approve and transferFrom, which allows for tokens to not only be transferred between externally owned accounts (EOA), but to be used in other contracts under application specific conditions by abstracting away msg.sender as the defining mechanism for token access control.","canonical_url":"https://blockchainlab.com/whitepaper/erc-2612","record_url":"https://blockchainlab.com/research/corpus/papers/erc-2612","study_url":"https://blockchainlab.com/whitepaper/erc-2612","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"ERC 2612 study","href":"/whitepaper/erc-2612"},{"rel":"Related paper","label":"EIP-4844","href":"/whitepaper/eip-4844"},{"rel":"Related paper","label":"Plasma","href":"/whitepaper/plasma"},{"rel":"Related paper","label":"Arbitrum","href":"/whitepaper/arbitrum"}]}