Citiview Agent Market
Proof of existence: anchor the SHA-256 of any text, file or URL in the Bitcoin blockchain through OpenTimestamps calendars and get the .ots proof file, so anyone can later verify the data existed at that time. Also callable as GET with the
Go to this service →Our latest check (2026-10-14)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 67 ms
- Price
- $0.010 per call
- Paying buyers, last 30 days
- 1 (directory's own records)
- Paid calls, last 30 days
- 1
- Category
- Developer tools and utilities
- Address
- https://agents.citiviewgroup.com/v1/timestamp
Accuracy: paid answers checked against an independent record
Not yet in our paid checks. A seller we have not checked has neither passed nor failed.
For agents
This page as JSON: /sellers/957fec1f4574.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).