Read the sources
Keep the evidence

Fetch an actual block height from Robinhood Chain and an ETH/USD spot quote from Coinbase
Export the response, retrieval time and checksum as one inspectable record

Public data from Robinhood Chain and Coinbase

Waiting for the first read

No completed read yet

A completed read will appear here after both sources respond

SHA-256 checksum of the exported payloadAvailable after a completed read

Raw receipt

Check a saved receipt

Select an exported JSON receipt to recompute its checksum on your device
The file is never uploaded, a matching checksum confirms file integrity rather than source authenticity or price accuracy

No file selected

The timestamp records when this browser retrieved the response, it does not establish when Coinbase published the quote
The public sources may be delayed or rate limited, each read is an unsigned observation and does not trigger settlement

No production escrow contract is connected

Official network configuration · Coinbase price documentation