@foundryprotocol/0gkit-da

Neutral 0G Data Availability: deterministic digest + encoder publish + local integrity verify. Built on @foundryprotocol/0gkit-core + viem.

Install

npm install @foundryprotocol/0gkit-da @foundryprotocol/0gkit-core viem

Use

import { DA } from "@foundryprotocol/0gkit-da";

const da = new DA({ network: "galileo" }); // omit encoder → local digest mode
const { digest, daRef, mode } = await da.publish({ hello: "world" });
const ok = da.verify({ hello: "world" }, digest);

verify(payload, expectedDigest) is a local integrity check (no network). See the repo's docs/superpowers/DECISIONS.md (D3) for the DA verify scope.

Estimating & dry-run

const est = await da.estimate(payload);
// { kind: "da", gas: 0n, fee, breakdown: { sizeBytes, mode } }

const dr = await da.publish(payload, { dryRun: true });
// { dryRun: true, estimate, result: { digest, mode, latencyMs: 0 } }

Local mode (no encoderUrl) always returns fee: 0n. Live mode uses DEFAULT_DA_RATE_WEI_PER_BYTE (1e6 wei/byte, ~1 nano-0G/byte) as a placeholder until 0G publishes a programmatic pricing feed. Use 0g estimate da <file> or 0g estimate da --bytes <n> on the CLI; 0g da publish <file> --dry-run validates without broadcasting.

License

MIT.