Cardano

P2P Protocol

A Layer-1 blockchain using the Ouroboros family of provably-secure Proof-of-Stake protocols, developed with an academic-peer-review-driven research methodology. Governance transitioned in the "Voltaire" era to on-chain mechanisms (CIP-1694): DReps (delegated representatives) vote on governance actions including protocol parameter changes and treasury spending, alongside a Constitutional Committee and SPOs (stake pool operators). The cardano-node repository is now maintained under IntersectMBO (renamed from the original Input Output HK organization in 2023).

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Details

License Apache-2.0
Dev Status 🟢 Active
Owner IntersectMBO (the current organizational steward of core development, successor structure to IOG/IOHK); Cardano Foundation (standards/ecosystem stewardship) and Emurgo (commercial arm) are the other two "founding trio" entities.
Governing Body Post-Voltaire on-chain governance (DReps + Constitutional Committee + SPOs voting on governance actions) — a genuinely live, binding mechanism, not just a roadmap intention.
Country N/A (IntersectMBO/Cardano Foundation/Emurgo are separately-registered entities across multiple jurisdictions)
Start Year 2017
Stack Haskell (core node), with Plutus (Haskell-based) as the smart-contract language.
Funding Historically IOHK-contracted development funding; now also a substantial on-chain Treasury funded by a percentage of transaction fees/protocol rewards, allocated via the on-chain governance process itself (Catalyst funding rounds, treasury withdrawals via DRep/Constitutional Committee approval).
Last Investigated Aug 23, 2026

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This tool in the centre and the things it is directly related to. Each line names the kind of relationship.

Topology view: CardanoThis tool in the centre and the things it is directly related to. Each line names the kind of relationship.CardanoHypha (Hosts, Storage for)Hypha
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Use Case Domains

Platform Evolution & Sovereignty

P2P Protocol Attributes

Origins Academic-peer-review-driven L1, Ouroboros PoS consensus family, three-entity founding structure (IOHK/IntersectMBO, Cardano Foundation, Emurgo).
Database N/A conventional DB; third-party indexers (Blockfrost, Koios) built on top, not part of the core node.
Query Language N/A conventional query language; third-party indexer APIs.
Data Formats CBOR.
Collaborative Live Editing N/A
Rich Text Editing N/A
Mobile Support Via third-party wallets (Daedalus, Eternl, Yoroi, etc.).
Web Support Via third-party wallets and dApp frontends.
Native Apps cardano-node ships as a binary; Daedalus is a full-node desktop wallet.
Terms Free, open-source; network fees paid to SPOs, with a portion routed to the on-chain Treasury.
Funds On-chain Treasury (see Governing Body) — a real, disclosed, protocol-level treasury, unusual among this batch.
Based On Novel Ouroboros consensus family; not forked from a prior chain.
P2P Architecture Stake-pool-operator (SPO) gossip network; Ouroboros epoch/slot-leader election determines block producers.
Overlay Network Global, permissionless (SPOs require stake delegation, not permission).
Content Addressing No.
Local-First N/A
E2EE N/A
CRDTs Lib N/A
Byzantine Fault Tolerance Yes — Ouroboros (provably secure PoS, peer-reviewed).
Signature Ed25519.
Permissions Permissionless for transacting; SPO operation requires stake delegation but not central approval.
Semantic Web Compatibility No.
Smart Contract Yes — Plutus (Haskell-based, since the 2021 Alonzo upgrade).
Protocol Stack Position Base-layer settlement + execution (Layer 1), extended UTXO ("eUTXO") accounting model.
Asset / Value Embedding Native (ADA) plus native multi-asset support (tokens are a first-class ledger feature, not requiring smart contracts).
Protocol Maturity / Standardization Mature, mainnet since 2017, CIP (Cardano Improvement Proposal) process, live on-chain governance since Voltaire/CIP-1694.

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