{"document_id":"BLC-STUDY-0624","slug":"circle-cctp","title":"Cross-Chain Transfer Protocol: native burn and mint for USDC","authors":"Circle","year":2023,"date_label":"2023","publisher":"Circle","paper_type":"Design paper","category":"Interoperability","topics":["Interoperability"],"source_url":"https://developers.circle.com/cctp","source_label":"Circle CCTP docs","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":"CCTP burns USDC on a source chain and mints USDC on a destination chain when Circle's attestation service signs the burn. The attestation is the trust assumption.","canonical_url":"https://blockchainlab.com/whitepaper/circle-cctp","record_url":"https://blockchainlab.com/research/corpus/papers/circle-cctp","study_url":"https://blockchainlab.com/whitepaper/circle-cctp","last_reviewed":"2026-10-01","last_checked":"2026-10-01","relationships":[{"rel":"Canonical reading","label":"Circle CCTP study","href":"/whitepaper/circle-cctp"},{"rel":"Related paper","label":"Wormhole","href":"/whitepaper/wormhole-protocol"},{"rel":"Related paper","label":"Maker","href":"/whitepaper/maker-dai"},{"rel":"Related paper","label":"LayerZero","href":"/whitepaper/layerzero-v2"}]}