3 Services from notar.185-190-142-134.sslip.io

Accepts a SHA-256 hash, returns a Nostr-signed receipt and an OpenTimestamps proof anchored to the Bitcoin blockchain as tamper-evident evidence of existence at a point in time.

Timestamps a SHA-256 digest with a Nostr-signed receipt and a Bitcoin-anchored OpenTimestamps proof for verifiable provenance

Submit a SHA-256 hash of any content to receive a Nostr-signed receipt and a Bitcoin-anchored OpenTimestamps proof of existence at a specific moment in time.