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.

“app now seems to be focused solely on AI advertising”
Google Play · 1/5 · 2026-08-04

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 2684346356

Proof data

Record hash (SHA-256): 14468d6033bbf0b00a6d239b90a60159a166721b769dfbef75266bba03004d3b
Signature (Ed25519, base64): W5iXvUHDmFhwkLyoqGEATA2G33bPnMK6td6+vtbvZXT0LYP1ero03L5FdVCVN8P3tCAXXF9wKIeVDRUno7O+Cg==
Merkle root: bf06d03d174707f535c1833af2fe5d51e1d258f061223559344b34f56a1fe592
Merkle path: ["1448228991ad43a8a115492ee5f2c72749f82a9277fc295e77618e6055b62a57","11bbd34d4cfdaf718772ad76e94d441374b62a864e453aed04264e9567ac4f6f","d1e9718e8390f03c1d77530828f1ef878c84b67420fb21d594f6afbbc790b694","e494a3fe7c1796e4eca932fc7972bc069a80b1d59e825b98045bbe476b2cff00","f5f5e91d22346772f559298924fe36083799ae6c4c767af8beb5d5c239fa2b6f","0f990950a7a164c66caa61ae070b71cd53a7545ad912c0d6569067220c3238aa","06c8e6e61fceed31b2d552dfc3a26cf7a7abbe1f38170950e78d427ef1952a28","22a933fa6056267b98aa872f264ea2e3d98ae8132274f5fcee7fbedce770aa67","3e84f74824cebd7ae1ca6e4c33f8f1c4c32b0bbdab6fe4c76ec6fd317dc85743","d98eefbbede89bf84443b7e0b68c6351f2f22c7ca1d5ae2c101c40977dc4ef36","a6be24d1403f59d3416f2fc0d8d9a559de4fdc3f208deefb5c9192d1216b1fc6","879b1c993b0c0814b2a75d570e70b17b8c28d50568785d86a369c01aef9cc8a9","3492fa2427a95ac81a05d55f826772e439a4f5dbe5c25418023e367993106e04","e61e8c9172ebccf404204c12ed180f9c4b13c940a974e219cf0d945d751fc601","7e649292aa5430485d2f826d445d528f8e95727e1e2103ce6cc862417c028321"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2684346356 · entry 108e9186e8c5677a5932…
Expected log hash: 21bf9008ed6eb4689ee11c1c7859f0e94084281b2b2e2088b1d7635165466b55 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":"v1788337894213","kind":"published-quote","locale":"en","page":"product:acrobat/sign-pdf/en","quote":"app now seems to be focused solely on AI advertising","rating":1,"review_date":"2026-08-04","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 (bf06d03d1747…), 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.