Every piece of content
has a story.
We make it provable.

Verbitas attaches a cryptographic provenance record to any image, audio clip, or video at the moment of creation. Anyone downstream can verify where it came from and whether it has been modified. No account required to verify.

terminal
# Sign an asset with one curl call
curl -X POST https://api.verbitas.io/v1/sign \
  -H "Authorization: Bearer $VERBITAS_API_KEY" \
  -F "[email protected]" \
  -F "recipe=image-genai-v1"

→ 202 Accepted
{
  "manifest_id": "01HXQ8M...",
  "status": "signed",
  "signals": ["c2pa", "watermark_trustmark"],
  "manifest_url": "https://verify.verbitas.io/m/01HXQ..."
}
AI-generated asset
Origin verified

Creator: Acme Media GmbH

Tool: Stable Diffusion XL

Signed: 2026-05-09 14:32 UTC

C2PA 2.4 · TrustMark · Anchored

C2PA 2.4 Member
EU AI Act Ready
GDPR EU-only infrastructure
Hetzner EU FSN1 · HEL1
OpenAPI 3.1 Spec published
SOC 2 Type I In progress
OpenTimestamps Bitcoin anchoring

Four steps. Any content. Any scale.

01

Sign

Attach provenance at creation

When content is created — by a human, a model, or a pipeline — call the Verbitas API. We attach a signed C2PA manifest that records the creator, the tools used, and a tamper-evident hash of the content.

python
import verbitas
manifest = verbitas.sign(
  "output.jpg",
  recipe="image-genai-v1"
)
# manifest_url: https://verify.verbitas.io/m/01HXQ...
02

Watermark

Provenance travels with the content

The manifest is embedded in the file and stored in our index. If the metadata is stripped during distribution, the invisible watermark and perceptual fingerprint can recover it. Provenance persists through JPEG compression, cropping, and re-encoding.

bash
# Watermark embedded at signing time
# Survives: JPEG 50% quality · resize to 25%
#           crop 30% · format conversion
# Engine: TrustMark (image) | AudioSeal (audio)
#         VideoSeal (video) | SynthID-Text (text)
03

Anchor

Immutable proof on Bitcoin

Manifest digests are batched into a Merkle tree and anchored to Bitcoin via OpenTimestamps and Arbitrum One. The on-chain record is opaque — 32 bytes, no PII, no asset content. Just mathematical proof of existence at a point in time.

python
# Anchor batch (hourly by default)
merkle_root = build_tree(manifest_digests)
ots_proof = opentimestamps.submit(merkle_root)
arb_tx = arbitrum.submit(merkle_root)
# Bitcoin block confirmation: ~60 min
04

Verify

Anyone can check. No account needed.

Drop any file into verify.verbitas.io or call the verify API. Verbitas returns a confidence-scored, multi-signal result: C2PA signature validity, watermark detection, fingerprint match, and blockchain anchor status.

bash
curl -X POST https://api.verbitas.io/v1/verify \
  -F "[email protected]"

# → { "status": "verified_manifest_intact",
#     "confidence": 0.97,
#     "signals": ["c2pa", "watermark"] }

Honest about what we do — and don't — prove

Verbitas proves:

  • Where content was signed — the creator identity registered with the signing certificate
  • What tools were used to create or modify the content
  • Whether the content has been modified since signing
  • When it was signed (RFC 3161 timestamp)
  • Whether the invisible watermark is present and intact
  • Whether the content matches a previously indexed asset (soft-binding recovery)

Verbitas does not prove:

  • Whether the depicted event is real or true
  • Whether the content was created ethically
  • Whether the signer is who they claim to be (we verify signer identity; not natural-person identity)
  • Legal compliance with any regulation — that is the deployer's responsibility
  • That unmodified content is safe, appropriate, or accurate

"This clarity is intentional. Provenance is about origin, not truth. A signed image from a trusted source is still only as trustworthy as that source."

Built for the people who make and move content at scale

Start free. Scale when you need to.

Developer

For solo developers and experiments

Free

forever

  • 1,000 signing operations/month
  • All modalities: image, audio, video
  • Managed KMS
  • Public verification
  • Community support
Start building →
Most popular

Growth

For startups and growing products

Usage-based

14-day free trial

  • Unlimited signing operations
  • All modalities + watermarking
  • Managed KMS
  • Webhook integration
  • Email support · 24h SLA
Start free trial →

Enterprise

For production deployments at scale

Contact us

30-day trial

  • Unlimited operations
  • All modalities + soft-binding
  • BYOK KMS available
  • Blockchain anchoring
  • Admin console + audit log
  • Dedicated Slack channel
Talk to our team →

Self-hosted deployment is on our roadmap. Join the waitlist →

See full feature comparison →

The provenance layer is ready. So are you.

Free tier. No credit card. OpenAPI 3.1 spec. Start signing in 5 minutes.