PRIVATE DATASET SAMPLING

Inspect the sample.
Verify where it came from.

The seller commits a CSV before record numbers are selected. The buyer checks the disclosed records against that commitment — without receiving the entire dataset.

Create a test room Walk through the process

Release candidate · synthetic data only · valueless test tokens. No mainnet payments and no promise of data quality.

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01 · COMMIT

Fix the file first

The full CSV and seller recovery secret stay on the seller’s device. The server stores a root and technical metadata.

02 · SELECT

One fixed selection

The server selects unique record numbers after commitment and a verified test payment. Refreshing does not reroll.

03 · VERIFY

Check the evidence

The seller shares sample JSON directly. The buyer verifies its values and inclusion proofs locally against the live room.

No dataset uploads to our server

No customer accounts. This is not anonymous: room metadata, wallet addresses and test transaction records are stored. A shared sample JSON is plaintext and cannot be revoked.

Read what is stored and for how long →

Test fee

New invoices specify 19.000001–19.009999 test USDC on Base Sepolia. The exact fractional amount identifies the invoice. Do not round it. Test ETH for gas is separate; this is not the dataset purchase price.

SERVICE

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