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.

“wants me to pay to upgrade and shows a load of annoying rubbish adverts”
Google Play · 5/5 · 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 2515095234

Proof data

Record hash (SHA-256): 679e385e280f1c6d70ebd6088b3eee56190cf5403f4a1e3d691d5c5a66d1c8e9
Signature (Ed25519, base64): 21kpsxYAifFqz8vBOwG6Xyis8eQ2U4mP84xfVHIArtp8r36jjv0CoowJhQPC+Cebb5VCYRcvHeayJJadU5p7Aw==
Merkle root: d9909e7ff193b610d96d9930fa8111baf2fdaa08b732478b03ded2b9e1e52914
Merkle path: ["67a08a0ba278af6b2f1b7361f6d440c950cb4a5867547cb8a2783e55be379e37","639df27f636a53954c62b60c88031029218909c9161cafbe07203d50b56e0ee5","ed5d16a520575a372a987e5b80ae4672886f3b477acc54fb3d172f08ab3c58a2","209f2a8fb01b856af7a07d46bb8c7e7cbcd9d6b5f3fb44e125bfffba282b8d25","cc26aa2026ddc4facdc9c52c88adef8506e42605f2b2cfdb5f10b43167e489b8","01b00c98603089efca312ea1d77f3d10c404cae0a0f2fb9c96b3e003d0d9a0dd","fdbd93120bab815b8bbbab6221a69e507418c72e006604e3c3ce723954f619e6","fa6e2961ab6e5b338c5512cf21ead002747014ca6c24dca00c087181f830ead5","3372e8617d852f168d304df877d86078509e2976d46b569b82d7162dfbae9ae8","dcb4386f9fecf0f29e123d2f5995e5a5e0599e6183070f81e2473b086767e66f","cb4104b4b931a214a37df10d9c46010e7b5e27bb9f4781993d96a03f62eaef5b","9674e4ecef5e17216d02256f30d1a12e9bd64c829be82392db2ad16d9e944e26","fe512df538f31c12d9084e7935c17aa095161d0611453d225ad85718977c3370","fbe51c186e2797045566a65d4e8ac09d80335ed84733c00aea2f32527a4eb0c2","2aa33c224957c89d7d414cc43142ae7c4368efde4f1a1b6051ee910ab17bf997"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515095234 · entry 108e9186e8c5677a299c…
Expected log hash: 6f0abb2e15f57da153d99eb9fe756fd2540bcac51fcddbf7ac60c4be3cfb5f7f 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":"v1787136684512","kind":"published-quote","locale":"en","page":"theme:acrobat/price/en","quote":"wants me to pay to upgrade and shows a load of annoying rubbish adverts","rating":5,"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 (d9909e7ff193…), 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.