Register a file SHA-256 with Securaw/TimeChain2 and receive a downloadable OpenTimestamps proof directly binding its original bytes. ZIP includes .ots, metadata and independent-verification instructions. Hash only; no file upload. Initial receipt is NOT Bitcoin confirmed. Check the status link for later anchoring; no guaranteed deadline, authorship or content-truth certification. Idempotency-Key required.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.05 USDC | 0x2cf1...a470 |