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.

“documents can only save and download as copy, no other options.”
Google Play · 1/5 · 2026-08-11

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 2514013184

Proof data

Record hash (SHA-256): 6416f28f97165711bd8a9b4866d3acec4a1030dc0c19b33d82a7be7e67711955
Signature (Ed25519, base64): +EfJxLK7c1rPeQoXgGaV85BcHxmER5cfxQD2jjNYMOrd4fPIgVIDXzjxP6mMAw+Nb5k9vSeQjZRoksSEZZqYCQ==
Merkle root: 677e672fa444dfe5152ab91687c577772e13723ca441b5c8063508daedacfe44
Merkle path: ["641849513f2a5cc8ab3a7adcbe01ac216fa123070701a4add01bd2cfec1c71c9","34ed549dbad02a3d19539cea175ec3bad650f4d2e9824ffc6d353d7b1b473b1d","1aa10128adeaaf395e82b24005a1eff7527ff86a95ded30ad83c300fbc0583a9","351eb98f0be90d286fef7240ffdc6064ae9b9c62e37ec34f7f54968079e1b9ac","e611794f7d124fec82b987cf20d9b92bcaf1fb68986751b9c9af00cfac79ff89","70d72eb2fd9d9b3e240955e1d9d6567d345cedbaf5973bf88c4b40e4028a3542","483d3f5ec8f56f27be8a0f3c6c71b3a6c4c45c63b1b667b7521f15cdcd53883d","42108b5fb606c488efb13c1fc248d751e7a53c6db70452460c1e98c21a0a0c97","1c1059f712574a258c4024373a9ab71ef105dab2bed5d3d6823908917b27d6f5","055cdec71d7a801bddfe1e6e91bd7b6d0a33a468ad9a5ebca5d1fdf955621fc3","0b5f81c1397895a67fa0c168f5a03dd82e09e6398e5f4a199ab43883af912889","5999ce9331a3d3c3b42ff68c7d0c3b2938b4aad17e69c094bbaa432c5034da76","ef65dd9ebfc0d3ef62099f320670e0ff1ffa0aefd392ab7dbd6c1c6483d33d7b","3e9df542f4415cfb7321e531014c29668083cb06fd7805d6083ebd6b24fa289f","188420cfe03d9830600dc87f84622c41659cea53d9b8db8954bfc926ce1d4dac"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514013184 · entry 108e9186e8c5677a6b00…
Expected log hash: a596e5a342226b61371cdf76b5c8be8e37a3d00e7ffe8f7b0b550e1a8d1459dd 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":"v1787122978040","kind":"published-quote","locale":"en","page":"theme:acrobat/quality/en","quote":"documents can only save and download as copy, no other options.","rating":1,"review_date":"2026-08-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (677e672fa444…), 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.