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.

“and signing of the file”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
81fe09819837ff5d4afefa3cba8788dd89b2c05e6c987b5dcc3155036b67e22d
Signature (Ed25519, base64)
EutaARdTASAyM6m07VNJNyH2wTZSbbw4bln6egn+NVeXTc1JlhjzFCZYewdwJA86uQMILquY+xvE80MaLGAPDA==
Merkle root
c69b412346f0db8d88aed17dbaf2e4876a3743c1c4d16fb306ba56b5c0573123
Merkle path
["81f734091db372a55433e38b4f4fa3dc77281bdfc165997db8d54e921c485649","048cd0ca0b3715e1c1504dc0f729700bff472b46dbc73e07537f7743038df61b","770132a319916063a358f5200e44e89b405844217c11dad7ad955bde12303aa9","53728b2bfa7c80a9c757c86bfa96a61200a358feb32ab2deda3dadf3c990a824","1d98dc10c2e738bbdd5143b3fdf0b1541e33f1d45bb6a782c9f4c829623b91b5","28d3d46f9eb245c8e4e93862e41276df62851f41ad2040c1d8e19e88d3f9e0de","f5da96bba607365cedb9cf133b9867246cc95dd925b5eb8369804212c44d69da","1d832541cb172671b6052ace3833a8062785be85dc35415fdb916f20add2ea17","c647354bf4609ed05f4adfd9683454644ab53ac293fc952c5c9a0038c9eee0b7","635153bc70525ee568064be6bcebf77c0d2ff76a16f741b2538563d101174eac","c547f53d3fa575c7ddcfcd798229785ed831a860f06cefc5428824793639849f","81abe03a6b275e4c8d51fe74025243c6beda24f8c49133e621298fbc62e1901b","ceee0a42168dbf7fdebe6a87c18868b362d983067ee9d54459c89ffba781dde3","7374897de84b1f86ca0356b906b6c1bc842b8a45ccf90424df2bccb9b7b03d1b","3da38b679e2392986aef224a332d14750fb3a22c4e75287765e8f68f575f24f3"]
Anchored
2026-08-20
Public log entry
search.sigstore.dev, log index 2525010456 · entry 108e9186e8c5677a4287…
Expected log hash
659be4fcc7663b2dc65a53351e16497fea44ed9ec8aef1f3c48c8e452b350dc6 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":"v1787194832011","kind":"published-quote","locale":"de","page":"product:acrobat/sign-pdf/de","quote":"and signing of the file","rating":5,"review_date":"2026-07-22","source":"Apple App Store","source_url":"https://apps.apple.com/sg/app/id469337564?see-all=reviews","v":1}

Verify in the public log

  1. Open the Rekor entry (pre-filled with this proof's log index).
  2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (c69b412346f0…), which ties this proof's root to the log entry.
  3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
  4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
  5. 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.