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 received the refund that the app calculated.”
Google Play · 5/5 · 2026-05-03

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 2913636507

Proof data

Record hash (SHA-256): 55748e371c553479bd83996f5607f077e57cd4694f52e533e52e2c83611b685b
Signature (Ed25519, base64): 0TIU0UIPXHJmg6QLOMcVk0VScW858Nzx1h3OOYWofzjTs2v09QClHAZE9tfiJ28kmUuYZ3k1IgHzlKHUj0LPBQ==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["55783c80e22181e4b730959d81beab0d7976091c1ec16870a46e4ff4b26f0456","cfe35207a808081186bbf6808dd34c101b7107fe57c47aad985f99a373e7b4c0","2e4ab7ab85d258dab877340ad4e4514f861bc1550236b3ec8ba7ef86cb0ad133","d6d1c268fd0d4a9f6272842c69142624dc3862975fdea27efb96642a85eb57c8","306a1d9dc24bcc76086724e8a5b615d5ebfd5290262633878748e2ebf6f47641","bf6a57ff227f89885a2a6c74021a47ca905133406db55fdb998edb23f037039c","8a96988927079c8bd6c84c972f98a75553f0be502b9cf990d9b7a0254c4bb837","6c511c0532c000b12a7c2f8013e2975770ae9fb85ef778089861d7cd45a7f5e4","29d4967da76d5752f7fe79742b72db0d97db8a6d3b1d09c2926648ac4d86241a","b643937d654bcbc7e68c94ca44c8b3161e4c9614bd13f387efe2330db431904f","12498701ec80eb322027552740b37329e5ce7260f2d8bb670d3a26d50a0d6874","59ed91997728cb88879bad2b8337d3faf9e7582bde33c223df4df42a8d4a6fc0","eca7cd52f5c219223fa262f727815d7426f47ee6fd8d3c4a33225271415ce785","7a8821e5f39bd89945ecf080ecd049c93644614124901c8b74f26df2e34d9289","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]
Anchored: 2026-09-23
Public log entry: search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash: 417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","page":"theme:taxfix/returns/en","quote":"I received the refund that the app calculated.","rating":5,"review_date":"2026-05-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (f26292e960b3…), 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.