# Cardano (ADA): D-Score 71/100 — Decentralized

**BlockIndex D-Score: 71/100 (Decentralized).** Cardano (ADA) is a Layer 1 cryptocurrency using PoS consensus. Cardano: Research-driven Layer-1 PoS blockchain using EUTxO and Ouroboros to enable scalable, secure smart contracts.

_Source: https://blockindex.ai/coin/ada · Data by BlockIndex.AI · Updated 2026-06-19_

## D-Score breakdown (0-100, higher means more decentralized)
| Component | Score |
| --- | --- |
| Overall D-Score | 71 |
| Node distribution | 28 |
| Initial distribution | 0 |
| Governance | 25 |
| Age and history | 13 |
| Autonomy | 5 |

## Key facts
- Layer: Layer 1
- Consensus: PoS (N/A)
- Launch: ICO (2017)
- Founder: Charles Hoskinson, Jeremy Wood
- VC funded: No
- Max supply: 45,000,000,000
- Circulating: 36,377,168,477 (80.8%)

## Market data (as of 2026-06-19)
- Price: $0.16
- Market cap: $5.85B
- 24h volume: $343.63M
- 24h change: -2.31% · 7d change: -5.61%

## About
Cardano (ADA) is a research-driven, peer-reviewed Layer-1 blockchain built with a long-term focus on security, scalability, and sustainability. Founded and led publicly by Charles Hoskinson with Jeremy Wood as a key co‑founder and collaborator, Cardano emerged from an academic approach that emphasizes formal methods and peer-reviewed protocol design. The project separates concerns through a two-layer architecture — settlement and computation — and pursues a phased roadmap (Byron, Shelley, Goguen, Basho, Voltaire/Chang) that sequences decentralization, programmability, scaling, and governance. Input Output Global (IOG), the Cardano Foundation, and EMURGO comprise the triad of organizations that historically drove development, standards, and commercialization respectively. Over time Cardano has sought to balance rigorous academic research with pragmatic engineering and commercial adoption, culminating in a 2025 Vision 2030 strategy that emphasizes enterprise readiness and measurable KPIs.

Technically, Cardano distinguishes itself through the Extended UTxO (EUTxO) model that brings deterministic semantics to smart contracts and by leveraging the Ouroboros family of Proof‑of‑Stake protocols for consensus. The core node implementation is maintained in the open on GitHub and development draws heavily on Haskell for formal verification and correctness. Key platform features include the Plutus smart contract environment (with Plutus V3 advances), Hydra state channels for low-latency layer‑2 scaling, Mithril stake‑based aggregation for fast client bootstrap, and multiple sidechain initiatives (Milkomeda C1, EVM sidechain tooling, Midnight). These components are complemented by a growing ecosystem of wallets, explorers and developer tooling (Yoroi, Nami, CardanoScan, explorer.cardano.org, Plutus docs) and a steadily maturing on‑chain governance stack (Project Catalyst, SanchoNet, Chang hard fork / Conway ledger work).

In terms of use cases and adoption, ADA serves as the native currency for payments, transaction fees, staking, and governance participation. Cardano’s multi‑era approach enabled staking and delegation (Shelley), native multi-asset support (Mary), and smart contracts (Alonzo), which opened the network to NFTs, dApps and DeFi experimentation. Institutional interest and regulatory visibility increased in 2025 with ETF filings (e.g., Grayscale ADA ETF filing) and broader custody conversations, while developer surveys and the Vision 2030 roadmap highlight a push toward identity, enterprise integrations, and higher throughput targets. The network has recorded significant milestones — an ATH in September 2021, milestones in smart contract deployment and wallet growth — while also demonstrating operational resilience after late-2025 node/serialization incidents that were addressed via mandatory upgrades and security programs.

Tokenomics for ADA are straightforward: a capped maximum supply of 45,000,000,000 ADA with staged public sale rounds during 2015–2017 and allocations to founding organizations (IOG, EMURGO, Cardano Foundation). Circulating supply estimates vary slightly across sources (commonly reported around 36–37B ADA), and an approximate pre‑issued / founder allocation has been cited near ~16% of total supply in extracted materials. Staking yields and reward distributions follow the protocol’s emission schedule and treasury funding mechanisms (Project Catalyst), though precise per‑epoch reward rates and dev‑fund percentages were not consistently enumerated in the provided sources.

Governance on Cardano is evolving toward stronger on‑chain mechanisms: Project Catalyst and other Voltaire-era tooling have enabled token-based proposal voting, treasury allocation, and increasing community influence over protocol directions. The governance model therefore includes significant on‑chain components (delegated representation via DReps, Catalyst funding rounds), even as technical development continues to be coordinated with IOG and the Cardano Foundation. Security practices include audits, bug bounty programs (Intersect), and rapid release cycles for node software (e.g., v10.5.2) — measures that were notably exercised during the Nov–Dec 2025 serialization and chain-split events. Looking forward, Cardano’s roadmap prioritizes scaling through Hydra and sidechains, improved Plutus toolchains, and enterprise-grade stability and TVL targets under the Vision 2030 initiative.

## Links
- Website: https://cardano.org/
- Whitepaper: https://docs.cardano.org/introduction
- GitHub: https://github.com/input-output-hk/cardano-node

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About the D-Score: BlockIndex.AI rates decentralization from 0 to 100 across node distribution, initial distribution, governance, age and history, and autonomy. Methodology: https://blockindex.ai/dscore