Generate evidence-aware GenLayer contracts, deploy them with a pinned runner, and read only finalized outcomes.
npm install gavel-judgment-sdk
Node.js 22.13+. npm version 0.1.4 includes the mandatory-rule fix. Upgrade, regenerate, and redeploy existing contracts to use it. Release notes.
Save as generate.mjs, then run node generate.mjs.
import { writeFile } from 'node:fs/promises';
import { earthquakeDemoContract } from 'gavel-judgment-sdk/contracts';
const contract = earthquakeDemoContract();
await writeFile('contract.py', contract.source);npx gavel prepare-studio-next contract.py studio-next-deployment cd studio-next-deployment npx --yes genlayer@0.40.0-rc.3 network set studio-dev npx --yes genlayer@0.40.0-rc.3 deploy
The workflow checks chain ID 61997, estimates protocol fees, saves the transaction before waiting, and prints the Studio Next explorer link only after FINISHED_WITH_RETURN.
Every declared rule is mandatory. A rule marked satisfied: false deterministically forces status UNRESOLVED, winnerIndex -1, and outcomeId UNRESOLVED. Validators reject an invalid RESOLVED candidate even if both model answers agree. Four regression cases cover leader finalization and validator acceptance.
These are application designs, not verified payouts or completed judgments. Explore the examples.
Supplier delivery disputes · content moderation appeals · insurance claims · prediction-market resolution.
0xc1Cb384F4160FD7bC02E7aA26e21286c09352351
Transaction: 0xb06041b3754fce361e7d399049b0bd5972714120743f2ea9aa5bb74ef1732ed8
Status: FINALIZED
Execution: FINISHED_WITH_RETURN
get_progress: { attempts: 0, maxAttempts: 8, resolved: false }Deployment and reads are verified. Judgment resolution has not been executed.
PROPOSING / NOT_VOTED means consensus has not completed. Keep transaction.json and inspect the same transaction after an RPC interruption. Do not redeploy solely because polling failed.
npx --yes genlayer@0.40.0-rc.3 receipt 0xb06041b3754fce361e7d399049b0bd5972714120743f2ea9aa5bb74ef1732ed8
150 SDK tests and 64 direct contract tests pass. Version 0.1.4 enforces the mandatory-rule invariant; version 0.1.2 fixes strict TypeScript declarations, old package imports, missing packaged guides, preparation errors, and Windows runtime headers.