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 like the design in the app.”
Google Play · 5/5 · 2025-04-06

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 3240422411

Proof data

Record hash (SHA-256): 8f486436709b93d02c31e87bcacacdc7515b6e4705162d8e63786cc7f8d9c5fa
Signature (Ed25519, base64): bfYSpK3wA833D0WAPTevFi3v/YOIkx3uDlAdAjitPDDDjNXoW2es8SRJQK0Fxf2uy7JyyfZrEO4nu2yv2dCHDQ==
Merkle root: 825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9
Merkle path: ["8f46648bd6ef09890cb6a32e14305400dab7946caa7b996ab80019735b8a9b5a","51bb2e91f0c2b60c63a1cdca6487da827a3018c058d4f7cdb96535b1f7245970","521fd4656965df52a3163995ffe96ac89aecc20824010961045dd3d9f0af8201","fad71526dcfb4b0cbe00f967fb8d6e3148caf8593e545e2e665d83024127c166","2fdc878502e446584ddb935cfb73e866bf6e0609d9353796f3f62309e1ca6571","981280d8879b5824e5aaa7882e02117570f322333d64450a7eaacb3df7bb33d1","04d2eaa7767cb5d0bbadd3dd64c15fbf19c57f6499c03ac745451635f770cb84","f7e9523c4db80675d6a47b203fedc041e807e1d5e4cdcf468458ccbe8fe96e9e","de816d16a46a76aab99e183afae53827b72dcb0cb93e06dd6f685c4ace718d04","ac24d270fb1df121b660b7b5f74a323076b9fdf407df4791a4604368bfbed763","67b11e84a43c626355d24e3138e9b6f16df53da226422778c6704763e472e120","0470c0350267eb865fb293d11b365990524150f4ecf392ce78f52a8bda5fe32c","30ceb990dbcf69c7449b46a359a0167ed6280c6b62f1ee6cb61f71251c1e9d82","04c4bd8a9ef95bf5648c9d023612bd1f2446e83a6dcf83e612d031a5ea30e90c"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240422411 · entry 108e9186e8c5677a0ea4…
Expected log hash: 8667b0db28913263098c19cb6387cf64b6d68b1b8f2c4242d3139d96cef5da0d 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":"v1791861703078","kind":"published-quote","locale":"en","page":"brand:schulthess","quote":"I like the design in the app.","rating":5,"review_date":"2025-04-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.schulthess.mobile.android","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 (825dbc6ca55f…), 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.