Humanika
150 porciento logo 150 porciento logo

Blockchain and Web3 development for businesses

At 150 Por Ciento we use blockchain only when it solves a problem nothing else solves. Traceability a third party can verify, contracts that execute themselves, and digital assets with provable ownership. If your case doesn’t need it, we’ll tell you.

No revolution promises. Audited contracts and network costs explained up front.

150 porciento servicios

Technologies we use

  • Solidity
  • Ethereum
  • Polygon
  • Base
  • Hardhat
  • ethers.js
  • IPFS
  • OpenZeppelin
  • The Graph
  • Node.js
+95%
verifiable traceability
Starting from USD 6,000
Typical timeline 6-12 weeks

In short

Development of blockchain and Web3 solutions for cases with real value: verifiable supply chain traceability, asset tokenization, audited smart contracts and branded digital collectibles.

150 porciento servicios

What we solve with blockchain

There are few cases, but where they apply, nothing else does the job as well:

  • Supply chains where the end customer must verify origin without taking your word for it
  • Certificates and credentials that today get forged in an image editor
  • Agreements between parties who don’t trust each other and currently rely on an expensive intermediary
  • Assets to be fractioned and transferred without a central registry
  • Loyalty programs where the user wants real ownership of what they earned
  • Half-finished Web3 projects left behind with unaudited contracts

If your problem is solved by a database, it’s solved by a database.

150 porciento servicios

When you do NOT need blockchain

We start here because it saves us both time. You don’t need it if:

  • You trust whoever administers the data: if your company is the source of truth and nobody disputes it, a database is cheaper, faster and easier to correct
  • There aren’t multiple mutually distrusting parties: blockchain’s value appears exactly when nobody will hand the registry to someone else
  • The data must be erasable: immutability collides head-on with the right to be forgotten
  • You just want to say you use blockchain: that’s marketing, and marketing does it cheaper

We’d rather lose the project than sell you a blockchain for a problem a table fixes.

150 porciento servicios

What kind of solutions we deliver

  • Supply chain traceability verifiable by third parties
  • Smart contracts in Solidity, audited before deployment
  • Asset tokenization and fractional ownership
  • Verifiable certificates and credentials
  • Branded digital collectibles and NFTs with real utility
  • Web3 integration with existing enterprise systems
  • Audit and rescue of already-deployed contracts and projects

We work on low-fee networks like Polygon or Base. Nobody is paying 40 dollars of gas to claim a certificate.

150 porciento servicios

How we do it

1. Validating the case
  • The first question is whether you need blockchain — and sometimes the answer is no
  • We identify who the parties are and why they don’t trust each other
  • We compare against the centralized alternative, with costs for both
2. Solution design
  • Network chosen by transaction cost and maturity, not by narrative
  • What goes on-chain and what stays off: almost everything stays off
  • Experience designed for people who don’t know what a wallet is
3. Development and audit
  • Contracts built on proven standard libraries, not reinvented
  • Exhaustive testing and audit before deployment: on-chain there’s no quick patch
  • Testnet deployment with the full user journey
4. Production and operation
  • Mainnet deployment with monitoring
  • Integration with your current systems
  • Documentation and team training

Frequently asked questions

Does my company need blockchain?




Probably not. Blockchain adds value when several parties don’t trust each other and none will accept another owning the registry — verifiable traceability, unforgeable certificates, agreements without an intermediary. If your company is the source of truth and nobody disputes it, a database is cheaper, faster and easier to correct.

How much does a blockchain solution cost?




A smart contract with its web interface starts at 6,000 USD. A traceability platform integrated with your systems usually runs between 25,000 and 100,000 USD. On top sit network fees, which we estimate before starting and which on Polygon or Base are cents per transaction.

Do NFTs still make sense for a brand?




As speculation, no. As a certificate of ownership or verifiable access — tickets, memberships, warranties, credentials — yes, and that’s where we use them. The right question isn’t “should we do NFTs?” but “what does the customer need to be able to prove they hold?”.

Do you audit contracts before deploying them?




Always. On-chain there’s no quick patch: a deployed bug can be permanent and cost real money. We build on proven standard libraries like OpenZeppelin and audit before touching mainnet.

Does the end user need to know about crypto?




No — and if they do, it’s badly designed. We set up managed wallets and flows where the person never sees a seed phrase or pays gas. The chain sits underneath, invisible.

Read our Privacy Policy to learn how we protect your data and respect your privacy.