Cardano (ADA) review

Cardano uses Ouroboros proof of stake; ADA holders can delegate to stake pools, and a pool's controlled stake affects its probability of being selected to produce blocks.

Layer North view: Delegation creates protocol utility but does not guarantee reward, pool independence or protection from ADA price loss.

After the Plomin upgrade, holders can delegate voting power to DReps; DReps, SPOs and the Constitutional Committee ratify different governance action types under stake- and member-based rules.

Layer North view: Staking delegation and voting delegation are related control questions but should be measured separately.

Cardano documentation identifies ADA as the principal currency, while other native assets are governed by their own permanently associated minting policies and may require ADA for transactions.

At epoch 637, Cardano reported 6.307 billion ADA in reserves and 38.693 billion ADA in total supply, reconciling to the 45 billion maximum.

Layer North view: Reserve release expands active supply without breaching the cap; unstaked holders can still experience dilution of their share of active supply.

Each epoch combines transaction fees with a protocol-defined fraction of remaining reserves, sends a treasury fraction to the treasury, and allocates the balance through the stake-pool reward mechanism.

Layer North view: Staking yield is not a fixed protocol return and depends on parameters, pool performance, saturation, pledge, fees and reserve state.

The parameter guide classifies monetary expansion, treasury cut, pool costs, deposits and transaction fees as updatable economic parameters.

Layer North view: The 45 billion ceiling is a separate constraint from the configurable pace and destination of reward flows.

The Cardano node documentation says slot leaders are randomly elected from pools and that greater controlled stake creates a greater selection probability.

Layer North view: Security analysis must measure delegated stake and shared ownership, not only registered pool count.

The reward design targets an equilibrium around k saturated pools and reduces the attractiveness of delegating beyond saturation.

Layer North view: Economic incentives can discourage oversized pools, but one operator can run multiple pools and delegators can cluster around common brands or infrastructure.

This review has not resolved pool ownership, multi-pool groups, custodial delegation, relay hosting, geography, key custody or production client implementations.

CIP-1694 defines seven action types, including hard forks, parameter changes and treasury withdrawals, with different approvals from the Constitutional Committee, DReps and SPOs.

Layer North view: Formal rules improve observability, while economic independence still depends on delegate concentration, turnout and common control.

The Plomin hard fork activated the full set of CIP-1694 actions and the DRep role, following approval by SPOs and the interim Constitutional Committee.

Cardano's supply dashboard reported treasury additions and withdrawals and listed enacted withdrawals, while epoch-637 treasury held about 1.487 billion ADA.

Layer North view: On-chain visibility does not answer whether recipients are independent, deliver milestones or concentrate ecosystem influence.

Cardano's EUTXO model lets transaction validity be checked from the transaction and its inputs before submission, although a transaction can still fail if another transaction consumes an expected input first.

Layer North view: Deterministic validation is useful, but contract logic, off-chain code, keys, oracles and application economics remain separate risks.

CoinGecko ranked ADA #17, but this review has not measured normal and stressed spread, depth, slippage, venue concentration or withdrawal reliability.