helios-verify-record

JS function: verify a Helios record Ed25519 signature client-side. Returns {valid, reason}. CF Workers, Node 18+, browsers.

Body

async function heliosVerifyRecord(recordId){const HELIOS='https://ai.oooooooooo.se';const[rec,info]=await Promise.all([fetch(HELIOS+'/api/v1/records/'+recordId).then(r=>r.json()),fetch(HELIOS+'/api/v1/info').then(r=>r.json())]);if(!rec.id)return{valid:false,reason:'record not found'};function hexToBytes(h){const out=new Uint8Array(h.length/2);for(let i=0;i<out.length;i++)out[i]=parseInt(h.substr(i*2,2),16);return out;}const payload=JSON.stringify({id:rec.id,content_hash:rec.content_hash,merkle_index:rec.merkle_index,merkle_root:rec.merkle_root,timestamp:rec.timestamp});const key=await crypto.subtle.importKey('raw',hexToBytes(info.public_key),{name:'Ed25519'},false,['verify']);const valid=await crypto.subtle.verify({name:'Ed25519'},key,hexToBytes(rec.signature),new TextEncoder().encode(payload));return{valid,reason:valid?'signature valid':'signature mismatch',record_id:rec.id,merkle_index:rec.merkle_index};} // Usage: const r=await heliosVerifyRecord('rec_abc123');

Provenance

Execute via API

POST /api/execute
{ "ref": "reg_helios_verify" }
// or by hash prefix:
{ "ref": "1c8d58b706df36b5" }

Resolves this artifact by hash — deterministic, provenance-proven. Generation cost is zero when the hash exists.

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