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 use the storage for useful access across several devices”
Google Play · 5/5 · 2026-08-12

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 2680856520

Proof data

Record hash (SHA-256): 147e236f1306910a656b15c077ff1e94cfe53c33a79bec91c811129624158390
Signature (Ed25519, base64): 3+SdeEVx/6zmI/a5gEVRTm71iIXcszwXZhJzroPzL6g1KSqeZbc8njbEckeMoiEeNTh6+huaY4xs6RB/pk6cBA==
Merkle root: e42defaa0a17e226699ea4a82dc9c6dd27c28085170ffe1d62d8c6a4c9215db9
Merkle path: ["147ae18a72f9aaa9f37eeac1551c11125ddaa446f3df6c45cb40a62624322b63","8d6a8dcbc0724a400b76b93ccd3e2410267ad2c4fb883192d196e535cbc1d344","1212a89293110a449efdb3ab50539a399591d1707c6f4cb82a63ffc6bb47ffbc","7b0f8c20b232ca396d62e9909c00cfd0531e95eb18bff717c0e085ae9e272f94","731caf5adc277306dc20cf119021f96f6983de4dca492b9f6418af40f948e233","f3caa7e49fa6608464cf55d3be82eccdacbac3f5764947082c1026688e9ff41a","bcdfc67aa663c7c53f34a5f6a9f1cd8c4fe9263bb0af382fab94798cceb9addc","c7ee54d427433531f6e3e1402d19a0fde4d99829447da2b04db70b569a0cc137","5e2b4d105c702052df737bf8cf2ef320b5986c3b7d3a54c4f1a519d0f5e7cb7b","139c2d8223a164dc40a2c0f0ab9931fab7701d3f6dbc9ed9e5b47eb4eeed3c24","261e71352027ca864df620d9e191c3c277f567830b0fd5db35ec1212846651d9","26322ecba042f86a8a3948f32fb985f61482003505576f985a5eec2ec4c81858","a723e3192c73ed0856ed765177b67dd95561b4a0d6d1c0b16f64f339be4f05a1","f9b10a6aa616ed717dd3cacc1714fe509709e95281fdde9fabb8c6943e906d5b","270a8fe791f18cfa20f43263c29329704ffea666703469cea18570c7ca1219e3"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2680856520 · entry 108e9186e8c5677adb25…
Expected log hash: 356153ffa6072187539ea75dc6dfb23d03b74238aa8aa70cd6aa9a6a99e983d4 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":"v1788298923475","kind":"published-quote","locale":"en","page":"product:acrobat/pdf-editor/en","quote":"I use the storage for useful access across several devices","rating":5,"review_date":"2026-08-12","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 (e42defaa0a17…), 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.