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.

“The price could be lower.”
Google Play · 5/5 · 2026-09-11

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 3258859570

Proof data

Record hash (SHA-256): 47862b808fe0198884f14e4ba38ee237d6994a0a721a8c37607ae55981cb2b20
Signature (Ed25519, base64): L8DeBLSX7x8Wy/UY2/1xV6Hx5bWuOgj8XzGIXotQ+1wPcouPqptRZBi5gAMdmoFyOImajgEBM5MuIS2ob1zwAg==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["4785dbdef07b8a9045c1c0b25b130e15ad12b70c804270daf1a48a4e7cf05b34","de30252c82a6737c8028eb3c1145d103e3f097625c231c4a37937de48f6827e4","8b354cc2ebb6d879ad7482718adda02f4009f890a336c1914a162f6bfac0bbca","3b3bf7aba39d84c5e3735cb3f2f4ace14843b9ddea6eb05b1843aa178de35e5d","2577a64086873805a0c53fe73c4e139263332454914fd4a7cd2b0fdccf73e103","9b746b6caa60f5d11b27a0a9bf32cf44fdf153b2f305dd86b2885b76e3058199","9f925dc5c082505d1343f54821e5fd264d5e68f5a5e4f305e05e0476fe3e7ea7","bcb671288932f013911c86cc838f2cd553dfcf9769ba966c8d531824b6e62ead","5543710a5ba454ba0d4358f44635c7ecd9edb6074453d7168917ddc3824a5ae2","081c15b94f312ca11cad54d3754067f377a4acf0504128999666b141b6c529a1","5d913e33d19a3986260438930448a30c776666d91c05c786a45beb42379944ec","35160e899989ab55b338117e263269e5952feebe8ff14148b9712ce076e959e6","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258859570 · entry 108e9186e8c5677a8fb5…
Expected log hash: 37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5 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":"v1792034893828","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"The price could be lower.","rating":5,"review_date":"2026-09-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (ca3049e83faa…), 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.