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Causfy - Global Digital Activism & Fundraising Platform
The pillar: advanced signatures

Legally valid signatures, backed by real funding.

Causfy's pillar is the advanced electronic signature: real legal weight, not just a click. And when your cause needs resources, fundraising is built into the same platform. Two forces, one movement.

Causfy signatures and fundraising, united
Signatures that carry weight

Activism with verifiable electronic evidence.

On most platforms, a "signature" is just a record in an easily editable private database. At Causfy, every signature is supported by high-security encryption technology and immutable auditability, generating verifiable electronic evidence that can be used in legal proceedings.

Electronic Signature Infrastructure

Causfy's infrastructure is designed to support Advanced Electronic Signature (AES) level features under eIDAS, offering a significantly higher level of security and evidential strength compared to a simple click.

Unique Identification

The signer is linked to the signature unequivocally through OTP (One-Time Password) verification and technical metadata.

Sole Control

The process is designed to ensure that only the user has access to the means of signing at the time of creation.

Alteration Detection

Any subsequent change to the audit document invalidates the digital seal, guaranteeing integrity of the signed record.

Non-Repudiation Support

Every signature is sealed with a qualified entity seal from the Spanish National Mint (Fábrica Nacional de Moneda y Timbre, FNMT), and the document and audit hash are anchored on the Kaspa blockchain — providing strong technical evidence of the authorship and timing of the signature. The legal non-repudiation effect depends on applicable law and the specific circumstances.

The 360° Verification Process

Identity Validation (Multi-factor)

The user must demonstrate control of their digital identity through a verified code sent to their device.

Evidence of Intent

Explicit consent and the physical/digital act of signing are recorded.

Audit Trail Generation

A detailed audit document is created, including the signer's IP address, device User Agent, precise timestamp, and document hash.

Timestamping and Blockchain Immutability

Every signature is issued with a qualified entity seal from the Spanish National Mint (Fábrica Nacional de Moneda y Timbre, FNMT), while the document and audit hash are anchored on the Kaspa blockchain. The combination generates verifiable electronic evidence that may be used as evidence in legal proceedings, subject to applicable law and jurisdiction.

Your data stays yours

The people who sign belong to your cause, not to advertisers.

  • Relevant Communications Only: We only contact you in connection with your activity and the causes you support.
  • No Third-Party Sharing: Your data is never sold or transferred to advertisers, data brokers, or commercial third parties.
  • Purpose-Driven Use Only: Any information associated with your signature is used exclusively to improve the platform and the causes you support.
  • Data Protection: Personal data associated with signatures is processed by Causfy in accordance with our Privacy Policy & Cookies (GDPR / LOPDGDD).

Comparison: Causfy vs. Traditional Platforms

Traditional Platforms Causfy
Signature Level Simple Electronic Signature Advanced Electronic Signature (AES) features
Legal Validity Symbolic / Informational May be used as verifiable electronic evidence subject to applicable legislation in each jurisdiction
Verification Email (sometimes unverified) OTP (Verified Identity)
Immutability Editable private databases Immutable Blockchain Sealing
Timestamp Internal (Not Certified) Qualified entity seal (FNMT) + Kaspa blockchain
Data Usage Monetization No commercial use of your data

Causfy's signatures are designed to be compatible with electronic-signature frameworks around the world.

See where your signatures hold legal weight →

A signature moves hearts. Funding moves resources. Causfy gives your cause both, in one place.

A cause growing with community support
The complement

Real funding for real causes

Raise the funds your cause needs, globally. Supporters can contribute from around the world, and you receive funds through the methods available in your country.

  • Getting started is simple: create your campaign, mobilize your community to share it, and track your progress every step of the way.
  • Support can come in through multiple methods — crypto, cards, bank transfers, and local options where available.
  • Every step is protected by bank-grade, phishing-proof authentication, and you keep control of your funds: only you can authorize withdrawals.
Start your cause

Two forces. One platform. One movement.

If you have a cause, you can launch today.

Start your cause on Causfy