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Sat, 23 May 2020 14:49:04 +0000 (UTC) From: Thomas Voegtlin Autocrypt: addr=thomasv@electrum.org; prefer-encrypt=mutual; keydata= xsFNBE34z9wBEACT31iv9i8Jx/6MhywWmytSGWojS7aJwGiH/wlHQcjeleGnW8HFZ8R73ICg vpcWM2mfx0R/YIzRIbbT+E2PJ+iTw0BTGU7irRKrdLXReH130K3bDg05+DaYFf0qY/t/e4WD XRVnr8L28hRQ4/9SnvgNcUBzd0IDOUiicZvhkIm6TikL+xSr5Gcn/PaJFS1VpbWklXaLfvci 9l4fINL3vMyLiV/75b1laSP5LPEvbfd7W9T6HeCX63epTHmGBmB4ycGqkwOgq6NxxaLHxRWl fylRXRWpI/9B66x8vOUd70jjjyqG+mhQ+1+qfydeSW3R6Dr2vzDyDrBXbdVMTL2VFXqNG03F Ycv191H7zJgPlJGyaO4IZxj++O8LaoJuFqAr8/+NX4K4UfWPvcrJ2i+eUkbkDJHo4GQK712/ DtSLAA+YGeIF9HAnzKvaMkZDMwY8z3gBSE/jMV2IcONvpUUOFPQgTmCvlJZAFTPeLTDv+HX8 GfhmjAJYT5rTcvyPEkoq9fWhQiFp5HRpYrD36yLVrpznh2Mx7B1Iy8Rq/7avadwVn87C6scJ ouPu+0PF3IeVmYfCScbfxtx1FaEczm8wGBlaB/jkDEhx0RR8PYKKTIEM7T2LH2p6s/+Ei4V7 mqkcveF/DPnScMPBprJwuoGNFdx2qKmgCKLycWlSnwec+hdyTwARAQABzT1UaG9tYXMgVm9l Z3RsaW4gKGh0dHBzOi8vZWxlY3RydW0ub3JnKSA8dGhvbWFzdkBlbGVjdHJ1bS5vcmc+wsF4 BBMBAgAiBQJUxgXKAhsDBgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAKCRAr1YJLf5Rw5nsF D/9Um5GYzuRB3kNwlLvoEqky0q2BQ1XeGLaHyQ0a2Qh4qGl6Ir497B4UkJvSdAOIRiyDld3+ XlnA3fhyqWGBpDy5YFiuY2dJgYQIuvF6PHpZNYenYC0P0FeuPvccSjHZpsLQF2TLf1oJPK5G FLNsWdXa6eEvshqsqqvltq3rLAVlaw5xqKwSNZeVNIP+FiqeRFfy+cFlGdGAfKLXI68excYU HfE74/slRvgTsFXNVEMnMyBwGFjm9Nngydzx4imU1UjVNoXaGaGad7O9EXpc1hXUTD23b8cT zn4OogGKRRZg9NPEmJZQ7DFc/11U4SY1NwCBVOG8w3tb5agXv/+pw0qZs8gPIZTnFv8ws2sz 4xZ9q+2Qc2pxjT5wV/bvPiY7F3Z4QwNXE38WGrQeKm6AwRrBpnQb3GwX+tkHMqCm7v5K+pGr FSffq83Pn28OUFgRdKeDqcmhtR01vqIej+ulnplgcrGbOsrlE6mYqzrOk9M6fwfDb2PHHTtq 7MQhURryHNlqKpN/Aj3IHDOEVDA3GY1opERp3Giy9TVXJO9oRWYyZPHbbswXWqHCr3KtJe2Y pkkaIdHPIvgHi8Aat/24r0bDNLZOXKSxF2NqnDoKqnyxQHY9TMepg1azTBKxm7HBW3olIPg3 y+lhNMXTQs40p7aguGMY3Gkf4FXdKowddCX0qM7BTQRN+M/cARAAvktgmJflLg8bz3VMyKF6 OHkpWBzfr9HOBZgmQTborznm35Z0BrqykcpHVGalNOydpNdoL9s3Elmr7S+L0YqXD3i3AS56 7S8KeKKenLoAV7J294KL6p2vldDiHHUNjXWSe0YEvbAw62tnigB4Wee0dhwAxhowFjmnyB3d ZVHZ2Ai+k5x7NAEvCGgwec3oD4kRDbtkdyiXAM72Jz63hgC2XnnYM/XEptxPgPUkPQnpboVt QkSU5dF5KM0YK5ItllOwLMyDQ/pEfBZQq0O9Eqsr8zc2H8vYSxbmYBCdimzpr6HJWRV32Quy iC0c8TjG/fenNsMHliP7bOp2NhSo784N+Q/4eM1G/KO4cvpbduNToWe4lBdfiWWySWziGUoM 9rBrdy5aex1p+i4Bk7FbAGUbKxFnsFoc4URM6UB5Q3URh8WtyRx+RjNNfs0MDRL31pfvfTP9 z1eueoznY470utIVGdhn4rczzPYUW+j39m2qpMMfT+gf5rLQLC2jBKi9lSiWMBDzOaaLwK08 MUeDiytp7xjFbh962ftC0/qs5VHBALI/XYvO0LuhgY55y1Tkb0aRUO5s1bjxW57HT+6k/1E5 GMo3xq0GuhJyaiZHmFKHGaB0kHLgj9MORUVtmr+FE9JMAeCdyIQLrtNiGzPNc/edOfn8CHTA IYJ3cd+I1fobsx0AEQEAAcLBXwQYAQIACQUCTfjP3AIbDAAKCRAr1YJLf5Rw5olED/90sdEG N4CQ1tGxjkY1NZRnNevdULm82qnCk/2srhBMCamXeJTkX7CyAwbvyJLZc5X6KNkDwq+KyGV6 1Amg0zFLU9TiwDhjfiFhvrWm0ez4+bA2lx2CMBf6YKH3FDTzXobIhpe3G3FpwklbcrTt+ooi QmMhI87JMtJ37CXUu1ETZ8Drukyakwcby35E+rV2n97eqnovuNzpfdT5ufabu7ZyARVu4CdJ ooagxIyex3vUu1/Vvr8PC9nP8cG20SByBKY+V4dRXIEPgsOtyNMMrvN0QzDtv9w8Ge7oKZNy iAUSq8Hif1ih2j7iKPsCd1RPPgmPWny8WWce+FGDzYwN8ZQ8n66MGNthdE6z5YCZoJDxOCNn d0AU0Ws6oBti7pCVjbF+7u+P6u5zoCt2YGs6WwkWY2zEVEl+B1S6DkkUhQ3vsZuOKweNZ6bx xjezO7ISR7wfamLzTcIC5W2Rqg2Y0MewQGJ5+3fhmjRX4D+rbCSLHdL2/JGM4qqEatbfSrGd XpkV7G55a47eo5DRlTn9MgfSR+3afjn9F7F4Gr8innbMTW8S9ORCYEJ8IZmapO771GjyqyN5 zFU3HJU+XCGWKavKJD509olho5J+LAQQyHYzJXlzq3qo32fqMV2IIs6WaYdkUDzEOh2yh9AS aW/4j/HIRnudrqfFullW48LcHQkW1g== To: "bitcoin-dev@lists.linuxfoundation.org" Message-ID: Date: Sat, 23 May 2020 16:49:03 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: [bitcoin-dev] MIN_STANDARD_TX_NONWITNESS_SIZE and OP_RETURN X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Bitcoin Protocol Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 23 May 2020 15:20:16 -0000 Hello list, I have been trying to CPFP a transaction using OP_RETURN, because the remaining output value would have been lower than the dust threshold. The scriptPubkey of the output was OP_RETURN + OP_0, and there was a single p2wsh input. The result is a 60 bytes transaction (without witness), that gets rejected because it is lower than MIN_STANDARD_TX_NONWITNESS_SIZE, which is equal to 82 bytes. Why is that value so high? Would it make sense to lower it to 60? Thomas