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Support Ed25519VerificationKey2020 multicodec prefix (#23)
Signed-off-by: Alexander Shenshin <alexander.shenshin@dsr-corporation.com>
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‎.changeset/whole-shrimps-cough.md‎

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‎examples/README.md‎

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## Overview
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This directory contains example implementations demonstrating the usage of the SDK. These examples showcase various functionalities of the SDK, such as creating DIDs, updating DID documents, resolving DIDs, and managing keys.
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Additionally, there is an E2E demo for recently added Hedera AnonCreds support.
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## Prerequisites
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- Hiero DID SDK: Make sure you have the Hiero DID SDK installed in your project.
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- Node.js: Ensure you have Node.js (version 20 or higher) installed on your system.
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- Hedera Testnet Account: You'll need a Hedera account on the testnet with some hbars to pay for transaction fees.
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## E2E Demos
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- **[`did-e2e-demo.ts`](./did-e2e-demo.ts)**: Demonstrates how to create, update, and deactivate a DID. Provides basic interactivity (steps confirmation and user input for DID service endpoint).
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- **[`anoncreds-e2e-demo.ts`](./anoncreds-e2e-demo.ts)**: Demonstrates how manage AnonCreds resources on Hedera — create Schema and Credential Definition, create and update Revocation Registry.
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- **[`hedera-hcs-service-e2e-demo.ts`](./hedera-hcs-service-e2e-demo.ts)**: Demonstrates how to use the HederaHcsService to create and manage topics, submit and read messages, and upload and retrieve files using Hedera Consensus Service (HCS).
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## Examples
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The following examples are available in this directory:
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- **[`dereferenceDID-service-endpoint.ts`](./dereferenceDID-service-endpoint.ts)**: Demonstrates how to dereference a service endpoint from a DID document.
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- **[`dereferenceDID-with-full-metadata.ts`](./dereferenceDID-with-full-metadata.ts)**: Demonstrates how to dereference a DID fragment with full DID Resolution metadata.
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- **[`dereferenceDID-with-topic-reader.ts`](./dereferenceDID-with-topic-reader.ts)**: Demonstrates how to dereference a DID fragment using a custom topic reader.
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- - **[`dereferenceDID-with-verifier.ts`](./dereferenceDID-with-verifier.ts)**: Demonstrates how to dereference a DID fragment using a custom verifier.
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- **[`dereferenceDID-with-verifier.ts`](./dereferenceDID-with-verifier.ts)**: Demonstrates how to dereference a DID fragment using a custom verifier.
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### Registrar package
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‎examples/anoncreds-e2e-demo.ts‎

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console.log(JSON.stringify(revListResolutionResult.revocationStatusList, null, 2));
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}
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main();
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main().finally(() => client.close());

‎examples/did-e2e-demo.ts‎

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import { PrivateKey } from '@hashgraph/sdk';
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import { createDID, deactivateDID, updateDID } from '@hiero-did-sdk/registrar';
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import { resolveDID } from '@hiero-did-sdk/resolver';
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import * as readline from 'node:readline';
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const readLineInterface = readline.createInterface({
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input: process.stdin,
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output: process.stdout,
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});
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const prompt = (text: string) => new Promise((resolve) => readLineInterface.question(text, resolve));
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const operatorId = process.env.HEDERA_TESTNET_OPERATOR_ID;
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const operatorKey = process.env.HEDERA_TESTNET_OPERATOR_KEY;
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const clientOptions = {
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network: 'testnet' as const,
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accountId: operatorId,
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privateKey: operatorKey,
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};
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async function main() {
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const privateKey = await PrivateKey.generateED25519Async();
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console.log('Creating new Hedera DID...');
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const { did } = await createDID(
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{ privateKey },
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{
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clientOptions,
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}
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);
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console.log(`Hedera DID has been created: ${did}`);
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console.log(`Resolving the DID...`);
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let didDocument = await resolveDID(did);
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console.log('Resolved DID Document:');
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console.log(JSON.stringify(didDocument, null, 2));
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await prompt('Press enter to proceed with updating the DID...');
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const serviceEndpoint = await prompt('Please enter DID service endpoint to add: ');
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console.log(`Updating the DID...`);
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await updateDID(
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{
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did,
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privateKey,
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updates: [
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{
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operation: 'add-service',
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id: '#service-1',
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type: 'VerifiableCredentialService',
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serviceEndpoint: serviceEndpoint as string,
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},
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],
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},
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{
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clientOptions,
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}
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);
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console.log('Resolving the updated DID...');
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didDocument = await resolveDID(did);
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console.log('Resolved updated DID Document:');
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console.log(JSON.stringify(didDocument, null, 2));
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await prompt('Press enter to proceed with deactivating the DID...');
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console.log('Deactivating the DID...');
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await deactivateDID({ did, privateKey }, { clientOptions });
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console.log('Resolving the deactivated DID...');
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didDocument = await resolveDID(did);
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console.log('Resolved deactivated DID Document:');
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console.log(JSON.stringify(didDocument, null, 2));
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}
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main().finally(() => readLineInterface.close());

examples/hedara-hcs-service-comprehensive-example.ts renamed to examples/hedera-hcs-service-e2e-demo.ts

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/*
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* This comprehensive example demonstrates how to use the HederaHcsService
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* This E2E demo demonstrates how to use the HederaHcsService
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* to create and manage topics, submit and read messages, and upload and
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* retrieve files in the Hedera Consensus Service (HCS) ecosystem.
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* retrieve files in the Hedera Consensus Service (HCS).
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*
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* It showcases the main capabilities wrapped via `HederaHcsService`,
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* including topic lifecycle operations, message publishing and querying,
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console.log('Topic info:', topicInfo);
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console.log('');
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// 3. Update topic example
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// 3. Update topic
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await hcsService.updateTopic({
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networkName: 'testnet',
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topicId,
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console.log('Resolved file content (string):', resolvedFile.toString());
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console.log('');
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// 8. Delete topic example
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// 8. Delete topic
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await hcsService.deleteTopic({
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networkName: 'testnet',
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topicId,

‎package.json‎

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"examples:run": "tsx --env-file examples/.env"
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},
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"devDependencies": {
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"@hashgraph/sdk": "^2.66.0",
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"@hashgraph/sdk": "^2.72.0",
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"@scure/base": "^1.2.4",
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"@antora/cli": "^3.1.10",
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"@antora/site-generator-default": "^3.1.10",
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"@antora/site-generator-default": "^3.1.12",
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"@babel/core": "^7.26.10",
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"@babel/preset-env": "^7.26.9",
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"@changesets/cli": "^2.29.4",

‎packages/anoncreds/CHANGELOG.md‎

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# @hiero-did-sdk/anoncreds
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## 0.1.3
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### Patch Changes
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- bb5b2bf: Fixed an issue where multiple actions to update and deactivate a document's DID could not be performed when using a Client instance
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- Updated dependencies [f95ba48]
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- Updated dependencies [bb5b2bf]
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- @hiero-did-sdk/core@0.1.3
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- @hiero-did-sdk/hcs@0.1.3
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- @hiero-did-sdk/zstd@0.1.3
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## 0.1.2
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### Patch Changes

‎packages/anoncreds/package.json‎

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{
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"name": "@hiero-did-sdk/anoncreds",
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"version": "0.1.2",
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"version": "0.1.3",
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"description": "This package provides implementation of Hedera AnonCreds Registry, following Hedera AnonCreds Method specification.",
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"author": {
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"name": "DSR Corporation",

‎packages/cache/CHANGELOG.md‎

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# @hiero-did-sdk/cache
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## 0.1.3
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### Patch Changes
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- bb5b2bf: Fixed an issue where multiple actions to update and deactivate a document's DID could not be performed when using a Client instance
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- Updated dependencies [f95ba48]
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- Updated dependencies [bb5b2bf]
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- @hiero-did-sdk/core@0.1.3
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## 0.1.2
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### Patch Changes

‎packages/cache/package.json‎

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{
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"name": "@hiero-did-sdk/cache",
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"version": "0.1.2",
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"version": "0.1.3",
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"description": "This package provides caching utilities for the Hiero DID SDK JS.",
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"author": {
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"name": "DSR Corporation",

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