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Privacy Chains in One Sentence

#blockchain#Crypto#Privacy2
AI-generated summary
Zcash, launched in 2015, is the original zk-SNARK blockchain focused on shielded payments and has been upgraded with Halo proofs for enhanced privacy. Coti, established in 2017, serves as a privacy compute layer for DeFi and data applications using garbled circuits. Beam, since 2018, employs Mimblewimble technology to ensure default privacy and is integrating EVM and L2 for confidential DeFi. Conceal.Network, also from 2018, utilizes CryptoNote to make transactions untraceable through ring signatures and stealth addresses, creating a privacy-centric ecosystem. Aleo, introduced in 2019, is a zero-knowledge layer that simplifies the development of encrypted applications. DarkFi, launched in 2021, is a UTXO-based privacy chain that supports anonymous transfers and multi-asset logic with zkVM. In the Layer-2 space, Aztec (2018) is an Ethereum protocol that uses zk-SNARKs for shielded ERC-20 transfers and private smart contracts. ARPA Network, also from 2018, enables encrypted data computation on Ethereum Layer-2 through MPC and threshold BLS. Ola, a 2022 Bitcoin Layer-2, allows developers to create programmable privacy solutions. TEN, another 2022 Ethereum L2, features a fully encrypted EVM for private transactions. Arcium, established in 2022, is a privacy smart contract platform that supports encrypted computation and cross-chain applications. True ZK, launched in 2023, combines zkRollup and zkEVM for modular privacy features in smart contracts.

L1#

Zcash
Since: 2015
One Sentence: Zcash is the original zk-SNARK chain that makes shielded payments native, now rebuilt on Halo proofs to scale privacy without trusted setup.

Coti
Since: 2017
One Sentence: COTI is a privacy compute layer built on garbled circuits, pushing DeFi and data apps into encrypted execution.

Beam
Since: 2018
One Sentence: Beam is a Mimblewimble-based chain that hides everything by default and is now strapping on EVM + L2 to bring confidential DeFi into the open arena.

Conceal.Network
Since: 2018
One Sentence: Conceal is a CryptoNote-based chain that makes every transaction untraceable with ring signatures and stealth addresses, wrapping payments, staking, and messaging into a privacy-first ecosystem.

Aleo
Since: 2019
One Sentence: Aleo is a zero-knowledge L1 that turns privacy into the default and makes building encrypted apps feel like writing smart contracts.

DarkFi
Since: 2021
One Sentence: DarkFi is a UTXO-based privacy chain with zkVM and ZK Assembly, embedding Money contracts to make anonymous transfers, balance aggregation, and multi-asset logic native on-chain.

L2#

Aztec
Since: 2018
One Sentence: Aztec is an Ethereum L2 privacy protocol using zk‑SNARKs to enable fully shielded ERC‑20 transfers, private smart contracts, and confidential DeFi, with zero-knowledge proofs ensuring on-chain validity without revealing transaction details.

ARPA Network
Since: 2018
One Sentence is an Ethereum Layer-2 privacy network where MPC and threshold BLS let encrypted data compute on-chain, powering secure bridges, verifiable randomness, and Web3 privacy apps.

Olavm
Since: 2022
One Sentence: Ola is a ZKP-first Bitcoin Layer-2 where OlaVM, Ola-lang, and Massive let developers build programmable privacy and users run decentralized verifiers on mobile
One Sentence:

TEN
Since: 2022
One Sentence: TEN is an Ethereum L2 with a fully encrypted EVM powered by TEE, delivering private, fair, zero-MEV transactions while staying fast, decentralized, and dev-friendly.

Arcium
Since: 2022
One Sentence: Arcium is a Layer‑2 privacy smart contract platform using zkSNARK/zkSTARK to enable encrypted on-chain computation, developer-friendly private contracts, and cross-chain-ready privacy applications for DeFi, gaming, and enterprise, with chain‑offload scaling and modular zk‑proof architecture.

True ZK
Since: 2023
One Sentence: TrueZK is a zkRollup + zkEVM Layer‑2 enabling privacy-on-demand, modular address/amount/data obfuscation, chain‑off execution with on-chain ZK proofs, and account abstraction for secure, auditable, and developer‑friendly private smart contracts.

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