← All articles CASE FILE — ANATOMY OF A SIGNED TRANSACTION TWO-PART OBJECT EX. 1 raw_data THE UNSIGNED ENVELOPE OF INTENT contract — holds Permission_id ref_block_bytes · ref_block_hash expiration · timestamp fee_limit · data (memo) [ SHA-256 ] EX. 2 txID SHA-256(raw_data) FIXED BEFORE ANY SIGNATURE EXISTS KEY [ SIGNS THE ID ] EX. 3 signature[ ] REPEATED · ONE 65-BYTE ENTRY PER CO-SIGNER signature[0] · r s v · 65 bytes signature[1] · r s v · 65 bytes Signatures wrap the envelope — the ID names the envelope alone Technology Anatomy of a Signed Transaction PUBLISHED2026-07-03 │ BYTRONORIGIN │ UPDATED 2026-07-16 transaction-structure signatures tapos multi-sig