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.

“Claims to edit PDFs, but paywalls the save feature after you make edits”
Google Play · 1/5 · 2026-08-05

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 2632025295

Proof data

Record hash (SHA-256): 15aad5b485879f8e27fdf85a0e3143ec6b1e9baab93c89296d8abf11232b1808
Signature (Ed25519, base64): mtEQEirDzLwqt4S9gpUqnhI8mHtL9V8Jgb/Kr9YcTCuiVohpc9XEvxG/47tMA4MrkzeYDE5H3Rlvbw8i6gMLBA==
Merkle root: fd6fca9e7cef37aada941aac92decfcc64f6ccf1f80e46f326058d1dbea3be25
Merkle path: ["15a942400d486ed54a0075868f25b7ab00f7960d1aa16d0191fa8b4ed7ce24b4","518e9b1c91cef09b229d6020b2c7698fc93fcc1d585b235bb04c9dcb85df3567","9deb01dc3e1020103c0b8f970727f0e100893dc7f1abf1e2ca3ff08b74e6b61e","4b039901f71fe6cc58de69510d08c88ed9f3db026df81232bbce31e0b752c646","5e4c6c574eb68392b86ca617d6e6f70f79d50b0b879cbb9d251183a34e17e29f","f6d05d0318a35c7307390549dae25773d3868b3fd0f90bb34493895cb84cec1a","5a082ccba794af95ffc8c1fa597ab1a854ca1d1d8349fc852b8332361ca4e80b","b48ab963fbbbfb741569ae4ade64f9d545a11b9b064850771017a8bb9441bc7c","19603b4df8850fccbd2d31de41fa4affd317ffb48f6847a2eab358e7c2112ba3","45a91e31543bc94dca33f9ffd2f1ef4b68e5a9892631506cf6eb12bb914fcbbd","837e21a65c2e7e9a1ce78baaa0cf6b585e93b4b3d71a69b16e8ae761b6912a16","9920afaecdf2c0fe347b654bebc1ac5233b2ab1d10b2ded7a1a817299c6d2453","f88aa868377e782be92c7bc17cca7fa56bb539fff729ac4b230ecbae8fe3bd50","af8b7672f7140c4d5f8cf5a204256eb8a0fe0ba6770180d832059e5b511f691a","d2a30b01208ae5f7745e5c8a474c1f34f9628e43b7a0d1b0d1ac6b378b7f866d"]
Anchored: 2026-08-29
Public log entry: search.sigstore.dev, log index 2632025295 · entry 108e9186e8c5677a7e39…
Expected log hash: 327cdca6f67e0b8900de427ba632e65f297b0edb716ae3a08de15ff81c0cf3b3 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":"v1787971088504","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"Claims to edit PDFs, but paywalls the save feature after you make edits","rating":1,"review_date":"2026-08-05","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 (fd6fca9e7cef…), 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.