Ceramic
A decentralized network for user-controlled data that different applications can share. I led it as CEO of 3Box Labs.
StreamID: kjzl6cwe1jw147...9x2a
- Header: { controllers: ["did:pkh:eip155:1:0x71C..."], model: "Profile" }
- Payload: { displayName: "dazuck", bio: "Builder",karma: 42 }
- Signature: JWS Ed25519 verified against controller DID document
Commit #2 · App B Mutates Shared Model
- prev: bagcqcerakszw2... · proof: cid(genesis)
- Patch: [{ op: "replace", path: "/karma", value: 48 }]
- ComposeDB GraphQL index updated across all subscribed nodes
Merkle Anchor Commit #3 · Verifiable Timestamp Proof
- Merkle root: 0x9f8e2b...4c1a · Batch size: 4,096 stream commits
- Consensus: deterministic conflict resolution via earliest anchor timestamp
- Verifiable offline by any peer replaying the hash-linked commit log
A decentralized data network where applications build on shared, user-controlled data streams. It replaced the 3Box.js approach with event-sourced streams anchored to verifiable timestamps, IPFS for content-addressed storage and a custom consensus mechanism for ordering.
As CEO of 3Box Labs, I led the company through Ceramic’s whole life: protocol design, network launch, the developer ecosystem and, in 2022, ComposeDB, a GraphQL interface that made it usable for ordinary web developers. Hundreds of applications were built on it. Mainnet launched in 2021, and Ceramic worked with IPFS, Filecoin and The Graph.
The idea I’d point to is composable data models: shared schemas that let different applications read and write the same data without coordinating with each other.