S3 bucket name (must have Object Lock enabled).
OptionalcredentialsOptional explicit credentials (otherwise the AWS SDK chain is used).
OptionalendpointCustom endpoint URL (S3-compatible stores: MinIO, etc.).
OptionalkeyKey prefix for anchor objects. Default: 'provenance/anchors/'.
S3 region.
OptionalretentionRetention period in days. Default: 365.
OptionalretentionRetention mode: 'GOVERNANCE' or 'COMPLIANCE'. Default: 'GOVERNANCE'.
OptionalretriesNumber of retries on transient failures. Default: 3.
OptionalretryBase delay between retries in milliseconds. Default: 1000.
OptionaltimeoutRequest timeout in milliseconds. Default: 30000.
Base configuration shared by all anchor providers.