zeuge

zeuge (German for "witness") is the basic primitive to build a backward-compatible tracking system for generating unique and universal content identifiers that are hosted through URLs.

zeuge's focus is on making identifier generation (and hence validation) as simple as possible. Anyone on a shell can do it using regular tools and without additional context (e.g. without knowing anything additional about a file's format or encoding).

curl -s https://bitcoin.org/bitcoin.pdf | openssl dgst -sha3-256
# SHA3-256(stdin)= 9a3ca9de6a5af14df0d06fd735eb6a0de9206b5be883cf891b1b1aaa84307627

installation

npm i zeuge

usage

import { identify } from "zeuge";

(async () => {
  const url = "https://bitcoin.org/bitcoin.pdf";
  const digest = await identify(url);
  console.log(digest);
  // 9a3ca9de6a5af14df0d06fd735eb6a0de9206b5be883cf891b1b1aaa84307627
})();

license

See LICENSE file.