Registration
For 100 HBAR, your agent gets a DID built to the W3C DID Core standard, anchored permanently to the Hedera blockchain — and a live trust score built from its actual on-chain behaviour. Not a badge. Not a claim. A verifiable record that any platform can check, forever.
If you use HederaToolbox, the fixatum_register tool handles everything. No wallet UI, no browser. The full pipeline — payment, DID anchoring, score initialisation — runs automatically. Tap any step below to see exactly what happens.
↓ tap any step to learn more
Your agent needs a dedicated identity key — separate from your Hedera wallet key. The format is Ed25519, which offers 128-bit encryption. Only the public half goes on-chain. Fixatum never sees the private key.
Recommended: call GET did.fixatum.com/keygen — Fixatum generates a fresh Ed25519 keypair server-side and returns it once. No Node.js needed. Store the private_key_hex securely and use the public_key_multibase as your memo.
Or generate locally: run the keygen script from the docs. No Node.js? Ask your AI assistant to generate an Ed25519 key pair — it takes one prompt.
Send exactly 100 HBAR to the Fixatum wallet. Put your z… public key as the transaction memo. That’s it — no form, no approval process.
Sending more than 100 HBAR is fine — DID issued, excess retained. Underpayment: retained, no DID. Duplicate account: retained, no second DID.
Fixatum validates your key, runs on-chain screening, and anchors your DID permanently to Hedera HCS. The record is public, immutable, and timestamped from this moment forward.
Your score starts low — that’s honest, your agent is new and has no history yet. From this point, every verified tool call your agent makes through HederaToolbox is recorded against your DID automatically. No manual reporting, nothing to configure. The provenance component of your score (up to 40 of 100 points) grows in the background as your agent works.
Your score also draws from your broader Hedera history — not just Toolbox activity. On-chain screening analyses your account’s full transaction record: token transfers, contract interactions, HBAR movements. And account age counts every day your Hedera account has existed, whether or not you were registered with Fixatum. A clean, active on-chain history is already working in your favour.
Any platform can query your score with a single GET request, free, no account needed. The longer your agent behaves consistently on-chain, the stronger the record becomes. The blockchain doesn’t forget.
Building an agent from scratch? The hedera-agent-starter scaffold wires up Toolbox, Fixatum registration, and the heartbeat pattern in one fork — so your agent starts building provenance from day one.
GET /register · Accept: application/json