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'll definitely recommended it to every learner, reader, editors”
Google Play · 5/5 · 2026-08-01

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 3163461995

Proof data

Record hash (SHA-256): 07c6960982c06756770ea9f60e78e4b8daf49d87e97b1fb825dca39bf63cabb6
Signature (Ed25519, base64): IYTvWZA/YfK8i9K9RnCrFEvj3/2g30ifHc96fECOyl1qtTwcOsHkWwroEg1ygIPEaMHsarjumkDGHLi7rvldAg==
Merkle root: f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2
Merkle path: ["07c1a47b9a502f80627a9899e29ba2db82f2a1a53b89ea8fe55dfd6f658ee545","2d12df79fa03970329f816f3f5814e6e5b190cd008589c33ba881db9e2f4bf2b","544a8704d909636b40f4ef699c7c97e7fa0d2cdc7a78dc1416acf76d55098112","7b7078e041c9cd58d83a8658329c845b13e1559a7aba6d4d43b77503a92e026c","30c434095c62cbd8347eedb83c4e735dd37faa8d2fc123d711db10fa93c58270","a6acfb36026820db76b4040371fac95bbc9cbeea66ddeaec494d9b3bbaca90ef","a9454433646bcb2a6e9699fd50f84f68fa118c58489145224343cebb4a61ec17","722fc7c396d99a08ac6f228c8b83464f7e773542c8552c6eb3964e9313e85eff","c316cfcff73dc145448851f0d5235c866538cad3ce678aed320df79139817749","6f4567e398213351def1909cc8b59f195823b018696343b383b070e34b5a7064","a784e4c17c7f10f199fd326ebef48c726097111074dd9b5cfa4778f2f23d2e21","5158ec91e504c8c30795d08c4d021440e70160b6a0deb587c5682e7249258bff","665774a1192b73721b453ccc4135f39652e90d0c548e0465aa1a009bf210f3d7","c3040d35b4a41a3d91fd7f6d8e1e6868620c896bd0ae8d09b1351d70693bef08","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…
Expected log hash: 1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"I'll definitely recommended it to every learner, reader, editors","rating":5,"review_date":"2026-08-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (f2dea3193623…), 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.