What checksum does Docker use for caching COPY?

What checksum does Docker use for caching COPY?

caching docker checksum

docker

How to validate the authenticity of docker base images?

security docker checksum

docker

Docker private registry Verifying Checksum problem

docker ssh checksum docker-registry

docker

css file integrity check fails after docker build

css docker checksum integrity

docker

Routing Mesh stop working in docker swarm

docker udp docker-swarm checksum

docker