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xstelea/deriveNftLocalId.ts

Created December 30, 2025 15:32
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derive virtual badge from ed21559 public key
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deriveNftLocalId.ts
import { blake2b } from '@noble/hashes/blake2b';
import { bytesToHex, hexToBytes } from '@noble/hashes/utils';
const publicKeyHex = '554a6db54c09d609deabf5b234ab3627cdd182ebf0d60baa070ba4ba2e8e5b7a';
function deriveNftLocalId(publicKeyHex: string): string {
const publicKeyBytes = hexToBytes(publicKeyHex);
const hash = blake2b(publicKeyBytes, { dkLen: 32 }); // Blake2b-256
const last26Bytes = hash.slice(-26); // Last 26 bytes
return bytesToHex(last26Bytes);
}
const nftLocalId = deriveNftLocalId(publicKeyHex);
// Ed25519 virtual signature badge resource addresses
const ED25519_BADGE = {
mainnet: 'resource_rdx1nfxxxxxxxxxxsgnture9xxxxxxxxx004007650489xxxxxxxxxxu85e5y',
stokenet: 'resource_tdx_2_1nfxxxxxxxxxxsgnture9xxxxxxxxx004007650489xxxxxxxxxseuu08',
};
console.log(`NFT Local ID: ${nftLocalId}`);
console.log(`\nMainnet:`);
console.log(`NonFungibleGlobalId("${ED25519_BADGE.mainnet}:[${nftLocalId}]")`);
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