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.

“the essentials like basic viewing, annotate, fill & sign, even liquid mode are available for free, no ads, no internet, no sign in required”
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 3178115911

Proof data

Record hash (SHA-256): 17612a7ccc68c26647f2a2ddf56ef88a698e1893846363e95321fcfcbbf32d36
Signature (Ed25519, base64): dQpyRTybrTKu1a1/HErjFpFKkR3VL1524HZKqyOWnUmYqSkIA/sO3QsHXjNw5N+Ld1KLYBCYscax0D0qnwkICw==
Merkle root: afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b
Merkle path: ["17618c6b312db085df0398eb1a14a17f5d8031920064af31739416e390dde0f4","4004974be5011277487af87488f0930295cfa5c905c23c625efcfa89b1825f86","7b283b8ff1b0936d51a45888e04c3d50684b91a685c26931d4ec796f5dc484db","5f266f150a7d9d367a2fc81f827bddcfa43c603dd7f441135b8d6c50799d69b8","106e035d0b678bacdb7382f7112f35e089c52cc6104424fdb2563a752d154a48","3a65f0dce7fb4d271e2e51a2295d583abe1506ca0358462d39157d769faed06b","663c0c9574824283893252f578c0e65f155326ccc9b54eb414ff1d619e21a143","70cd762e6b4169e2e5bc2c5f82cf5789a97b8e743a6932df3b066993418907f9","341c267718522994538d5aec195d6308df1e5534f82bb644829a807dcb0be4c7","87611064aac4cca94813683f4e2a740ad27bc7fe1a1802142057f1f94de0e5d8","2dd3f4cc0ce148d7d51c1e3bfe2d48062a5fd704540a9bfdd861a1055ca54f17","ec08854347577678bea6aee9937042bc6beae2ec019209b55d90c01fe9714518","09648cb4275ce9eb9f26709778da1b3653a6ea84465537d5f6fe5c1b17d3cea0","15ecb20ce6559654c94b8b858c027c014996a92eb19771813db0b794d6214fb6","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]
Anchored: 2026-10-10
Public log entry: search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…
Expected log hash: a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"the essentials like basic viewing, annotate, fill & sign, even liquid mode are available for free, no ads, no internet, no sign in required","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 (afb9ffbb4b4e…), 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.