Dilution

Reduction of ownership percentage as supply increases through issuance, vesting, or inflation.

Digital Signature

Cryptographic proof that a message was authorized by the holder of a private key, e.g., ECDSA, EdDSA, BLS.

Diffusion Model

Generative model that learns to denoise data from noise through a reverse diffusion process.

Differential Privacy

Privacy guarantee that limits the impact of any single record on aggregated outputs by adding calibrated noise.

Difficulty Bomb

Mechanism that exponentially increases mining difficulty to encourage protocol upgrades.

Difficulty

Measure of how hard it is to find a valid PoW hash; adjusts to target block time.

DID Document

JSON‑LD document describing public keys, verification methods, and service endpoints for a DID.

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