n. — governance tool; off-chain voting platform
Snapshot is an open-source, off-chain governance platform widely used by DeFi protocols, DAOs, and NFT communities to conduct gasless governance votes. Votes are cast as cryptographically signed messages stored on IPFS, with voting power determined by a "snapshot" of token balances at a specified block height prior to the vote's commencement — preventing vote manipulation through last-minute token purchases. Snapshot supports a variety of voting strategies including token-weighted, quadratic, and whitelist-based voting. As of 2024, Snapshot hosts governance for thousands of protocols and has processed hundreds of millions of votes.
TECHNICAL NOTE: The "snapshot" block height mechanism is critical to vote integrity. By fixing the eligible voter set and their voting weights at a historical block, the system prevents flash loan attacks and last-minute token accumulation from influencing outcomes. However, because Snapshot votes are non-binding, their legitimacy depends entirely on the social contract between the community and the executing party (typically a multisig).
n. — informal governance; coordination mechanism
Social consensus refers to the informal, off-chain process by which a blockchain community — comprising developers, miners/validators, node operators, users, and economic stakeholders — reaches broad agreement on protocol norms, values, and changes. Social consensus operates through public discourse on forums (e.g., Ethereum Magicians, Bitcoin Talk), social media, developer calls, and academic research, rather than through formal voting mechanisms. It is the foundational layer of governance upon which all formal on-chain mechanisms rest: even technically valid on-chain votes can be rejected by the community through social consensus, as demonstrated by the Ethereum DAO fork.
GOVERNANCE NOTE: Vitalik Buterin has argued that social consensus is the ultimate backstop of blockchain security — the "layer 0" beneath all cryptographic and economic mechanisms. In extremis, a community can always coordinate to reject an attack or reverse an unwanted outcome through a social-layer fork, regardless of what the on-chain state records. This power is deliberately kept informal to prevent its routine weaponization.