Quote verification

This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.

“I installed it because I heard it's much more secure than other cloud services!”
Google Play · 5/5 · 2026-08-13

Checks (re-run on this request)

✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
✓ Public transparency log — Sigstore Rekor log index 2684302363

Proof data

Record hash (SHA-256): 0817795a8d0bc17da3fabd09173a65d0b08a6887dd60f4482e553a29a4098807
Signature (Ed25519, base64): 1iLeU0xs3NO9YBdBFbXNU+q3aOOLvAH+x7OEg+R7oNUy/wY2h1hdZdi8O+S+pQtXQmkZ6K8UQC8wJeUIiAOcCQ==
Merkle root: 5e3f2e41cc1fd7787192ebeb079af6f990c775b2053326f968115de8dd824e71
Merkle path: ["081337fb8a2c9416b2675caac475b93bf7e442a6e23ebcbec072a9d27ba1228f","cc690c4d25d39c36c10beb84189d1db4306262bf409f383072d484aa2f84ba16","c895825dd49fbbadc1ab38c2e73ddc171ed66e185da07c2a6787277aff318839","bec272b594cacf9a829999a9a46cd91564dda5691c6d728f9a8c04925257e935","6ae968d87c5dabf0e97c7bcaf30aa7ffdcef0deeae67408c4e6407167d2a2d6b","c84cf74bc177775c1bf07cd80d82a0b66a284b9289a49a380428080ca79e1971","991a7db5612c990bf0ae50cce140e079e37a6c2aa8996f015b597e2824b21fb9","04da85105916d01945228a2e13d5f240cd966a12ba7bece0f92822512f9d386c","3bcb2ab9a5e95287fea2410ceef7a18ee9b29ecd06ca3cdc90e7e4f45adb4de1","3a4bbac8d82cc13fa02372dfbda66e25b5e89a91f2860e2d46114325c4e9e8f2","6a345fe60e8ffe6620e28166eb1b1b9a0d81b6ead4c820dd12d04bdc08a39f8b","b9bf87b2702bd8ad7af8af015f460dc5db70cc9f1d43050ee25b0ac3d3fa8ddb","deae393b5941d0669bebddf6efecd65b06a543b5ed604c88e635a8a3b760289d","2afb6d36d3d2375210a57a6488ab98a278bb5bbb8e375833e605929207041f4b","a4325d4ccf36fc7ceaf4f8f3c2f4337a81e5e52c1c81c4c2185006d4bb2f79fe"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2684302363 · entry 108e9186e8c5677aca75…
Expected log hash: ee19ff36df511a8edb29d6951b6df42f660405614fb2aab70f8340010708e45d The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record: {"dataset_version":"v1788336966085","kind":"published-quote","locale":"en","page":"theme:proton/quality/en","quote":"I installed it because I heard it's much more secure than other cloud services!","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (5e3f2e41cc1f…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.