{
  "signed_by": "sasame-trust-302a300506032b65",
  "signature": "t/pdwHkTRlY/qwMCfP4XJngcR61TNr0BU5HlRhz4imVhKNiIfi9X/jMlxnshKvuXtfSftB89itcGaIPYD97sAw==",
  "canonical_json": "{\"criteria\":[{\"evidence_sha256\":\"c128bb097032acd30d1a408f3fd54df521ab7dbd63e60b1b1f85ec4e525a11d0\",\"id\":\"C1\",\"pass\":true},{\"evidence_sha256\":\"b699de03d8cf6b4e362cc50de29feb0aa0b40957e0d7789b102431a36b3067b3\",\"id\":\"C2\",\"pass\":true},{\"evidence_sha256\":\"087f5c3b0b3fdbf8914902631c2adc620740d03fb4bbd0469e4b9f72d8472173\",\"id\":\"C3\",\"pass\":true},{\"evidence_sha256\":\"a85bd47fbc3cf475a8dd1873d52a66ab162e38bfcdaf25df9762f7c69333802c\",\"id\":\"C4\",\"pass\":true},{\"evidence_sha256\":\"6e14b14351d6bf65d305854c642154863167069bb1ce6ad4648700b9fada208b\",\"id\":\"C5\",\"pass\":true},{\"evidence_sha256\":\"ea24506dedfc6cc71541eaba837ef663390e990c35aa2afe5071973dbe4285f6\",\"id\":\"C6\",\"pass\":true},{\"evidence_sha256\":\"a72148749766d5d7143ff51d2422095ccec51ba6eabac0c89dda14137b8d0ae5\",\"id\":\"C7\",\"pass\":true},{\"evidence_sha256\":\"23a60020dbe1f2df1bcd5af5ce6d8c5ac9674b74f4f9373a04d67eb92d689186\",\"id\":\"C8\",\"pass\":true},{\"evidence_sha256\":\"7fe5b75a58705f6e073c36d31e3b729b8c744a4fcf7f19d9a82726b09f1759cb\",\"id\":\"C9\",\"pass\":true},{\"evidence_sha256\":\"234a3363c1a9ce4004355641f95bdea6fe590ca464d6fa5ce841efa551463daa\",\"id\":\"C10\",\"pass\":true}],\"delivery\":\"verified: substantive MCP content[] from read-only tool 'lookup_card_price' (sampled 1/3 read-only tools)\",\"expires_at\":\"2026-07-14T18:54:04.890Z\",\"grade\":\"A\",\"honesty_cap\":null,\"issuer\":\"SaSame SRL\",\"issuer_pubkey_spki_hex\":\"302a300506032b6570032100439ce47d384c8ceb07c9040aef780cc3a2ba5a63c14027ad77ab458111f20fb6\",\"level\":\"observed\",\"note\":\"Re-verify offline: ed25519.verify(signature, utf8(canonical_json), issuer_pubkey). Then re-run the audit against subject and recompute each evidence_sha256. No callback to SaSame required.\",\"observed_at\":\"2026-06-25T12:59:51.997Z\",\"observed_by\":\"SaSame\",\"passes\":\"10/10\",\"probe_set_sha256\":\"019b813cd98b1bd5655b7b48958d85f02a6d64fc2c7b78a51aebe6349b1e4bde\",\"spec_pins\":{\"mcp_spec\":\"2025-11-25\",\"registry_schema\":\"2025-12-11\"},\"standard\":\"agent-tool-discoverability-standard/0.2\",\"statement\":\"SaSame OBSERVED this public endpoint from the outside on the date below and it met the criteria. This is NOT an owner-confirmed claim and NOT an official endorsement — it is a third-party observation anyone can re-run.\",\"subject\":{\"endpoint_sha256\":\"1bd862f2fb84dbc181fbde77eedc2cd65270982f8bd15809e8fb0ce6014cfe1a\",\"server_url\":\"https://gembook.xyz/api/mcp/mcp\"},\"unclaimed\":true}"
}