OpenChainGraph Suite · ART-210 · IP Licensing & Tokenization

IPFS CIDv1 Computer

Computes a deterministic IPFS CIDv1 (Content Identifier version 1) for any text input. Uses SHA-256 multihash with multibase base32 encoding, producing the standard bafkrei... prefix. Output is byte-exact with go-ipfs and js-ipfs for the same input. Includes a self-verified known test vector.

CIDv1 SHA-256 Multihash Multibase Base32 Deterministic

Known vector: "hello world" → bafkreifzjut3te2nhyekklss27nh3k72ysco7y32koao5eei66wof36n5e (raw codec, independently verified)

🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.

Input text

Text to compute the CIDv1 for. UTF-8 encoded. Leave blank to compute the CID of the empty string.

Multicodec

raw (0x55) for arbitrary bytes. dag-pb (0x70) for UnixFS/legacy IPFS compatibility.

CIDv1

Multihash Details

Compliance Flags

Execution Hash (SHA-256)