Launched this week

ZKStamp Proof-100
Shielded proof-of-existence timestamps for AI agents.
1 follower
Shielded proof-of-existence timestamps for AI agents.
1 follower
Private, dated proofs of data on the BitcoinZ blockchain (zk-SNARKs). Stamp it with Z. Before Q.


Free Options
Launch Team

Render Sandboxes: a computer for every agentRun untrusted code safely. Idle sandboxes cost nothing
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Shielded timestamps: the fingerprint is hidden inside a zk-SNARK shielded transaction.
Privacy by design: only the SHA-256 fingerprint is sent, never the file.
One new address and one viewing key per proof: reveal one proof without exposing the others.
Independent verification with ZCheck (open source), on any BitcoinZ node.
MCP server for AI agents: timestamp_fingerprint, timestamp_text, check_balance.
REST API for scripts and servers.
No card, no email, no account name: pay in BTCZ.
Free trial: 3 free proofs for new accounts.
Open source, MIT license.
BitcoinZ blockchain · zk-SNARKs (Sapling shielded transactions) · SHA-256 · MCP (Model Context Protocol) · Python · REST API