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dev.tatastu/proof · v1.1.0

Mark: stamp files with a signed, timestamped provenance record. Hash locally; verify free.

MCPremoteno credentialsFiles & storage

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Last check

Reachable, 7 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

B 87/100

What it does: 7 tools · 3 read, 3 write (incl. delete/pay)

Test call list_proofs: needs a key: tool error: {"error":"unauthorized","message":"This needs an API key. Sign in to create one for free.","next":"https://mark.tatastu. (1,004 ms)

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +9
  • Read/write annotations: +5
  • Safe test call: +8
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://mark.tatastu.dev/mcp

Tools

7 tools listed at last check
  • create_account Provision a persistent API key with no human, browser, or email in the loop. Call this once, store the returned `secret` (shown only this one time), and use it as the Authorization header on every later call: create_proof, verify_proof (no auth needed but fine to send), list_proofs, revoke_proof. Th
  • create_proof Stamp content with a permanent provenance record. Pass the sha256 hash of the content (hash it locally; the content itself is never uploaded). Returns an instant signed receipt: attach its verifyUrl, byline, badgeEmbed, and qrUrl to the published artifact. The receipt's `publisher` field carries the
  • verify_proof Verify content against all existing stamps. Pass a sha256 hash; matching is EXACT-BYTES-ONLY. Read the verdict fields: `exact` (these bytes are stamped), each proof's `publisher` (the verified identity: domain/handle + tier, or null meaning an unverified account, never trust a name that isn't in `pu
  • list_proofs List your recent stamps (requires API key).
  • revoke_proof Revoke a stamp you created (forward-only: anchored history stays verifiable, but the proof is marked revoked from now on). Requires API key.
  • grant_access Grant a specific identity the ability to decrypt escrowed content. Only available for proofs created with content escrow opted in (not yet available — stamps are hash-only today). Returns a capability token the grantee uses with reveal.
  • reveal Retrieve escrowed content for a proof you have been granted access to. Only available for proofs created with content escrow opted in (not yet available — stamps are hash-only today). The service re-checks H(content) == stampedHash before returning.

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