// Blockchain & Web3
Blockchain Registers and Notarisation
Timestamping and notarisation of documents on a public blockchain with proof of existence and integrity.
[INTERNO]
SOV-CHAIN
// Timeline
4-8 weeks
// Investment range
€5.000 – €25.000
// Target
Public Administration (public registers) · Notary firms · Agri-food (supply chain)
// What's included
- ✓ SHA-256 document hashing
- ✓ On-chain anchor smart contract
- ✓ External verification interface
- ✓ Integration with the client's management system
- ✓ Proof of existence over time
// Technologies
Ethereum Polygon Solidity SHA-256
// Expected outcome
Immutable proof, fewer disputes, transparency verifiable by the public.
// Compliance
eIDAS 2
// Frequently asked questions
How does the first contact work? +
A free 30-60 minute discovery call to frame needs, budget and timing before any quote.
How are payments made? +
30% on acceptance of the quote, 40% at an intermediate milestone, 30% on final delivery.
Who owns the final code/asset? +
The client. Full IP transfer on project delivery.
Ongoing maintenance? +
Monthly maintenance packages starting from €100/month: updates, backups, technical support.
// Other services · Blockchain & Web3
>_
Strategic Blockchain Consulting
Feasibility assessment, process analysis for real value, network/architecture choice, cost estimate, roadmap.
[INTERNO]
SOV-EU
2-4 weeks €3.000 – €12.000
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>_
Smart Contract Development
Design, development, deployment and basic audit of smart contracts on EVM networks and Solana.
[INTERNO]
SOV-CHAIN
4-12 weeks €5.000 – €40.000
→
>_
Asset Tokenisation (RWA)
Tokenisation of real-world assets (real estate, art, company shares) with smart contracts and legal compliance.
[IBRIDO]
SOV-CHAIN
2-6 months €10.000 – €60.000
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