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.

“They had a couple problems of which I complained about, but they have completely fixed it.”
Google Play · 5/5 · 2026-01-28

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 3199295725

Proof data

Record hash (SHA-256): 1cc340a8f0697f2e75bd0f0c78e9f2aba1db2790a68ae477925fcb6072d4031d
Signature (Ed25519, base64): bNfez7adJJQzY1CmKfVSvM80kfvcTwGvUcO2kKwAyOf0IT/kwHio7vc4+2LXpQRim7DN55pQoaod/lWUzP/qAA==
Merkle root: cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e
Merkle path: ["1cc28dc701c41d053684cc26ef22fb562af189bb43fdc65d0348ac508f3193ad","7541cf3f7e1cf39b6503cf1d2a5a2ddb479b30e8e3f4d02a831b9bfe0368955b","d4b9eaff3f84f8866cb3682624b5fa886c41967da297c236a7dd849055f38504","2b5ae690c56a7e0285ebb2fc17b997db00a4aef1456ab4386fec27cc8c0952f7","5cdcf33250882aec3b36b3295ce260edcc69407fc6ee1fb5640989115a6cc7ba","4891cd6f2dd627c756652f981ece502d70c65871c217f0acbd2fb54df9f59bd1","93fa98801ac8e1d0fcec5d8be0c35d57a66cfa9a85ddc884a006943e34b9eb7b","1b11dc2630b6c31ab11e0ec7142cbc12af06deb9793d9f6f582d037b29519dd3","5e4b248e270ad6a69a18f522240754daaf91d937d6bc950a193bc7b125fa2e9c","0ff83d6c8422d2fabef172bc0bed2461c536946c06f2f535dccb0e581cf89989","11e9097331bc857239ac2499b714bed271799a50a561a79619dc3bfa39226b52","00bde2dc86f5cdfda03d921fbc10cb6775a4a59f43762c9de3e415a772960ad7","67ef19118472e8cea8d8f9c7960df416625b46d91fef63f2cb0306cda5833746","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…
Expected log hash: 59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"They had a couple problems of which I complained about, but they have completely fixed it.","rating":5,"review_date":"2026-01-28","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 (cb5472fa7b7f…), 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.