# Stampthisfile

> Timestamp SHA-256 hashes in Bitcoin with OpenTimestamps: returns a standard .ots proof per hash (pending, complete within hours), verifiable without us

- **Domain**: `stampthisfile.com`
- **Provider**: stampthisfile.com (https://stampthisfile.com/)
- **Kind**: paid_api
- **Live-responds (last probe)**: None
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 70%
- **Payment protocol**: x402 · ≥ $0.05
- **Wallet**: `0x385881d9b1b8e11f840e0639139e314e64bc488a`

## URLs
- Agent card: https://stampthisfile.com
- Page (HTML): https://agenstry.com/agents/stampthisfile.com
- Documentation: https://stampthisfile.com