Services · Blockchain
Blockchain for HR credentials
Verifiable-credential employment history, on-chain diploma checks, and tamper-evident reference letters land cleanly on-chain. We ship the issuer + verifier contracts and the integration with the HRIS the firm already runs.
- HR blockchain
- verifiable credentials
- diploma blockchain
- ellenőrizhető tanúsítvány
Where it lands in this industry
- Verifiable-credential employment history
- On-chain diploma / certification verify
- Reference-letter authenticity attestation
- Decentralised identity (DID) integration
- Background-check provenance
What you get
Token contracts, NFT collections, staking, and the unglamorous plumbing around them: indexers, signature flows, wallet connection that works on a phone browser. We write Foundry tests including the adversarial cases, run static analysis, and do a self-audit pass before anything touches mainnet. For anything holding real money we will tell you to get a second audit, and help you prepare for it.
- Contracts with a Foundry or Anchor test suite, including the attack cases
- Deployment scripts, verified sources and an upgrade or migration plan
- A frontend that connects, signs and recovers from a rejected transaction gracefully
- A self-audit write-up with known limitations stated honestly
Work from this bench
DIMOP Plusz · GINOP Plusz · Vállalkozz Digitálisan
Buying this with a digitalisation grant
DField Kft. is an accredited IT supplier in the Hungarian Chamber of Commerce and Industry's Modern Vállalkozások Programja (Vállalkozz Digitálisan). Hungarian SMEs can order this work through the programme's grant calls, currently DIMOP Plusz 1.2.6 and earlier GINOP Plusz, with the formal quote issued on the programme portal.
How a grant-funded order worksStraight answers
- Do you audit other people's contracts?
- We review them and report, but we are not a substitute for a named audit firm on a contract holding significant value. We will say so plainly.
- Which chain should we use?
- Usually the one your users already have a wallet on. We will push back if the chain choice is driven by a grant rather than by the product.
- Can you do the NFT mint mechanics?
- Yes: allowlists, reveal, royalties, and the indexer and frontend around them. The BAYC teardown in this studio's archive exists because we take the reference seriously.
- Do we need a blockchain for this at all?
- Often not, and we will say so. The honest test is whether multiple parties who do not trust each other need to agree on the same record without a middle party. If one company controls the data, a database is cheaper, faster and easier to fix.
- What happens if a bug is found after deployment?
- That depends entirely on decisions made before deployment, which is why they get taken deliberately. Either an upgrade path exists — and somebody holds those keys, which is its own risk to disclose — or the contract is immutable and the response is a migration.
- Can you audit a contract somebody else wrote?
- Yes, and that is a large part of this work. An independent review before launch is the only review that helps, because after deployment the code is public to everyone including whoever wants the funds.
By industry
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