Public audit layer · v1.0.0
The receipt for the
data that trains the
future.
Every photo, voice sample, expert annotation becomes an immutable receipt. Trace is where labs verify provenance, contributors confirm consent, and regulators audit the source.
Receipts on the Protocol
10,009,995
indexed · live
Contributors
10,045,997
Data audited
47.40 TB
Look up a receipt
Enter a hash or data ID to see its full record
Receipts as they happen.
Registrations and metadata updates. Every event on the Protocol surfaces here, anonymized, sectioned by category.
Recent receipts
Live · streaming across every contributing app
| Event | Address | Activity | App | Date |
|---|---|---|---|---|
| Registration | sha256:08ff49…a8c3 | image receipt registered | Oto | 1s ago |
| Registration | sha256:5be0a3…e211 | document receipt registered | Oto | 3s ago |
| Registration | sha256:9df7e7…8567 | image receipt registered | Oto | 5s ago |
| Registration | sha256:9e90bf…7cab | image receipt registered | Kled | 7s ago |
| Registration | sha256:55803f…4e19 | image receipt registered | Oto | 8s ago |
| Registration | sha256:05218a…ef02 | video receipt registered | Oto | 8s ago |
| Registration | sha256:e40565…ca5b | image receipt registered | Oto | 9s ago |
| Registration | sha256:d2dbb4…3871 | image receipt registered | Kled | 10s ago |
Example · dataset audit
What we calculate for
a dataset.
Hand Trace the record list behind a dataset you're evaluating, and it computes the compliance posture over that exact set. Here's a sample audit of 12,480 records — every number in a real one links back to the receipts that produced it.
KYC verified
96.4%
of contributors in the set
On latest TOS
91.8%
consent version coverage
Total size
1.42 TB
avg 119 MB per file
Media coverage of the set
Sample figures. A real audit also breaks the set down by TOS / PP version, KYC status, file type, and contributing app — with a per-record drill-down and CSV export.
Contributing apps
Each app brings its own consent posture, KYC provider, and operating model. Click in to verify any of them.
Kled
Sourcing the largest licensable datasets on the planet
Receipts
5M
KYC verified
68.7%
Contributors
5M
Top media
Image · Video
oto
Voice & conversational audio
Receipts
5.1M
KYC verified
74.3%
Contributors
5.1M
Top media
Image · Video
Coming soonNumo
Text and reasoning trace contributions
Receipts
—
KYC verified
—
Contributors
—
Top media
—
Coming soonMiso
Long-tail multimodal & sensor data
Receipts
—
KYC verified
—
Contributors
—
Top media
—
Featured · Kled on Trace
Datasets on the ledger right now.
A sample of the licensable datasets Kled has registered through Trace. Click any one to drill into its full compliance posture: consent coverage, KYC verification, media coverage, the whole audit.
Video
Labeled
Home Cooking Session Dataset
First-person (egocentric) video of diverse cooking activities in home kitchens, annotated for action recognition.
12,000 Hours
Exclusive
Text
Raw
Language Learning Text Submissions
User-generated practice passages supporting grammar and translation models.
2M Submissions
Non-exclusive
Image
Raw
Global Street View HD
High-resolution street-level imagery for autonomous navigation and spatial mapping.
300K Files
Non-exclusive
Audio
Labeled
Multilingual Support Calls
Anonymized support calls in 15+ languages with sentiment and intent labels.
300K Files
Non-exclusive
Video
Raw
Classic Animation Archive
Digitized animated series enabling style, motion, and temporal-coherence modeling.
18,000 Episodes
Exclusive
Your dataset
Verify your own dataset on Trace
Drop in a hash list and get the same compliance posture render as the featured datasets to the left.
For frontier labs
Before you license a single byte, verify the whole set.
Drop in a CSV of hashes, or a pre-generated URL from the contributing app, and Trace renders the aggregate posture: consent coverage, TOS versions, KYC verification, media-type spread, file-size totals. Drill into any individual record.
What labs see
% under each TOS version
with content-addressed pointers
% from KYC-verified contributors
by provider and posture
Media · MIME coverage
video · image · document, by mime_type
File-size posture
totals, averages, byte-level deltas
Metadata-update history
seq 1–20, prev/next root chain
How a receipt arrives
From upload to onchain in seconds.
Webhook in, indexed and verifiable in well under a minute. The onchain registry is the source of truth; everything else is an index of it.
App ingests
Contributing app collects a piece of data with explicit consent. Sensitive metadata stays in the app's own system.
1
Webhook to Trace
App posts a SHA-256-anchored receipt over an HMAC-signed webhook. One asset per call, idempotent by event key.
2
Onchain register
Trace batches receipts into a Merkle root and registers via the Data Foundation. Lifecycle events append over time.
3
Public lookup
Indexed, searchable, downloadable. Labs verify datasets. Contributors confirm consent. Regulators audit.
4