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Official MCP RegistryListed

POPCORN Witness Verifier

Part ofPOPCORN Witness VerifierMCP server

Verify POPCORN-WITNESS/2.0 receipts: signature, digest, and witnessed time. Free and read-only.

First seen 18 Oct 2026. Evidence as of 18 Oct 2026.

1
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen

Tools

ToolDescriptionBehaviour
popcorn_verify_v2Verify a POPCORN-WITNESS/2.0 receipt against a caller-computed SHA-256 payload digest, nonce, and independently trusted issuer keys. Send only the digest, never private payload bytes. Caller-supplied keys do not establish issuer identity. This does not prove on-chain settlement, establish current time, or grant authority. Free and read-only.Read-only

Change history

  1. Listed (registry)
Source listings
SourceListingFirst seenLast seenVersions
Official MCP Registryio.github.violetclaire/popcorn-tain-verifier18 Oct 202618 Oct 20261