Historical Milestones in Bitcoin Privacy Evolution

The most significant attempts and developments to integrate enhanced privacy and fungibility into the Bitcoin network since its inception.

The top 3

  1. CoinJoin: The Earliest Privacy Innovation: CoinJoin, introduced in 2013, allows multiple users to combine their inputs into a single transaction to obfuscate ownership trails.
  2. Taproot Upgrade: Enhancing Transaction Obfuscation: The 2021 Taproot upgrade improved privacy by making complex smart contracts and multisig transactions indistinguishable from standard payments.
  3. Schnorr Signatures: Reducing Data Footprint: Implemented alongside Taproot, Schnorr signatures aggregate multiple signatures into one, making complex transaction structures appear as simple ones.

Sources

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