DATU Ledger Parameter Overrides

The DATU fork layers a handful of changes on top of the default --local quickstart profile so the environment behaves like the future shared validator network. The values below are committed in stellar-core.cfg for auditability.

Parameter	Value	Local Quickstart Default	Rationale
NETWORK_PASSPHRASE	DATU Testnet 01	Standalone Network ; February 2017 (when unset)	Ensures signatures from the DATU fork are invalid on public networks.
NODE_SEED	datu-tier0-foundation keypair	Random seed baked into quickstart	Aligns the container with the validator roster defined in quorumsets.toml.
FAILURE_SAFETY	1	0	Requires at least two external validators to agree with the local node before halting, reflecting the multi-operator topology.
UNSAFE_QUORUM	false	true	Enforces quorum intersection guarantees in preparation for public validator onboarding.
MAX_TX_SET_SIZE	800	50	Reserves headroom for batch treasury operations while staying within validator capacity.
MAX_SOROBAN_INVOKE_HOST_FUNCTIONS	120000	unset	Ensures Soroban contract execution budgets match the values captured in soroban.toml.

The configuration keeps DESIRED_BASE_FEE and DESIRED_BASE_RESERVE aligned with the public network so engineers can reuse existing fee heuristics. Adjust the table whenever the overrides evolve so operators and compliance reviewers can trace the history.