CAEXV provides a neutral, zero-access system for generating cryptographic records that attest to the existence of a digital state at a specific point in time.
By accessing or using the CAEXV website or services, you agree to be bound by these Terms of Service (“Terms”). If you do not agree to these Terms, you must not use the service.
CAEXV is operated by:
Christopher Alex - CAEXV Hertener Straße 215 45659 Recklinghausen Germany Email: support@caexv.com
2. Service Description
CAEXV provides a zero-access digital existence record system.
The service enables users to generate a cryptographic record that confirms that a specific digital state existed at a specific moment in time.
CAEXV provides technical records only. It does not assess, interpret, judge, or validate content, authorship, legality, ownership, or truth.
Core characteristics of the service:
client-side cryptographic hashing (SHA-256)
timestamped registry entry
generation of a unique proof identifier
optional generation of a private verification artifact (“Gold Card”) for Pro users
public verification of registered hashes
All cryptographic processing of files occurs locally in the user’s browser.
CAEXV never uploads, receives, stores, processes, or accesses user files or file contents.
3. Service Plans
3.1 Basic Proof
The Basic plan provides:
cryptographic proof of existence
timestamped registry entry
registration of a file hash
public verification of the existence record
The Basic plan does not include any private verification artifact and does not enable any personal attribution.
3.2 Pro Proof
The Pro plan includes all Basic features and additionally provides:
generation of a private verification artifact (“Gold Card”)
an additional verification layer that can only be completed by the holder of that artifact
The Pro plan does not establish legal ownership, authorship, or identity. It enables a private technical linkage between a registered record and the holder of a secret artifact.
4. Zero-Access Architecture
CAEXV is built on a strict Zero-Access architecture.
CAEXV does not:
upload files
store files
process file contents
analyze semantics or meaning
retain private verification artifacts
CAEXV servers receive only:
cryptographic hashes
timestamps
system identifiers required for verification
Because CAEXV never has access to file contents, it cannot reconstruct, infer, leak, or disclose user data.
5. User Responsibilities
You are solely responsible for:
retaining your original files
safeguarding any generated verification artifacts
understanding that modified files produce different cryptographic hashes
CAEXV cannot recover lost files, secrets, or artifacts.
You agree not to use CAEXV for unlawful, infringing, or abusive purposes.
6. Payments & Payment Processing
Payments are processed by Stripe as the independent payment processor.
Stripe is responsible for:
payment processing
invoicing
tax handling where applicable
chargebacks and disputes
CAEXV does not store or process payment card or billing information.