CONTENT-ADDRESSED PERSISTENCE

IPFS keeps evidence addressable.

WaterChain uses IPFS/CID as a persistence and addressing layer while the blockchain remains the durable trust anchor.

Persistence health. A CID is a persistence reference. Availability can change; historical blockchain anchoring does not.

PERSISTENCE

Content address

A CID identifies content by its content-addressed representation rather than by a mutable database path.

INTEGRITY

SHA-256

The evidence fingerprint provides deterministic byte-level integrity checking.

TRUST

Blockchain

The salted commitment anchors the relationship between private evidence and the credential state.

Inspect a CID

IPFS availability can affect evidence retrieval without changing historical on-chain anchoring.

Important: a valid CID is not itself evidence that an issuer authorized the associated credential. WaterChain deliberately keeps persistence and trust as separate concepts.