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 can't renew or but another license either.”
Google Play · 5/5 · 2026-04-10

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 2515144749

Proof data

Record hash (SHA-256): fab65154f98da31abdfcff84aaf14cb9814b87575aa6284e0bfa74017771645e
Signature (Ed25519, base64): t/tchENgsIo2+gB3AhKUYloR6sqXQiKKqFXjo8cGknhFpGq98TT4o65UdryJYlXLGMP6j5Z+UpPRn0VCZGpNCA==
Merkle root: 8a6ad893af0f0bb6c448016a777af61f3f4935afd82df0db132e64f813535715
Merkle path: ["fab22ac54d74cd3186189e72d85de527ad5b42dd3a7ac9955c17b6e69d19057d","66d569ef2b1cb472889f5079d8d63f7d91140e81e8ce4a6614a81ba851777f17","131676c476f9f7d2880582d0d2d79b29a9ef3c8226d832a438b525937d19b0cc","df72cd136a9eeb5baabe5af5d6b9da2bd828be09da9a935289b1a2592b62e808","7c221b392c8ae121b46bb4e65f87d71c7edf98bc30735f20d2851ab91d4f4f57","1c5d3bf2b4d7c8aedcc2cf390ae6f19e7474737ed2740e27e229ad12b9f217ec","b4eb4e1f38f69d00534b69e52247ac68528e370decd43901fd081db9995e8525","d5874d0c14cda21c5cef6e5a4ad26c5b6c4e53813895ef41d1abd72fd861fb34","2dad9f245d41dd2e02754a9993c732f2548f1747b30594f9356d318980322eff","8b4642ca7f21f2e2c7b769b7ccc1a32528ac23fa6ba4187baff80bcc8e1cbe93","e935a047d05ae025b873abd86951bd3a367a901bd3cb04fcce7237ba3fa9b9b9","5bc1168c47f5724c35ec8610ad8e7047dceb7d2dc8be9a835d1c344ea14431e5","aca625c2c743c13b7e188c90a8dcb2895afae601815729b8511e9bcc31ba8968"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2515144749 · entry 108e9186e8c5677a63b7…
Expected log hash: b6b79ad662332330e69c4ef135f6fb13ddc70048f846024d496aaa533f7f7fc0 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":"v1787137589246","kind":"published-quote","locale":"en","page":"brand:threema","quote":"I can't renew or but another license either.","rating":5,"review_date":"2026-04-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","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 (8a6ad893af0f…), 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.