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.

“Alles verständlich gut erklärt”
Google Play · 5/5 · 2026-04-14

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 3273174405

Proof data

Record hash (SHA-256): 0c297de63e5ea1921b81dcaef068697d83a457b1d995fd675decdbeaed581812
Signature (Ed25519, base64): wLg3EAQVC1dSpmzPw/Ld2970v2xGD3Fj+D055dr4aPiYYQQKboC5MQ6P5ufw9J5uBfleNivMh4CBwL3Qx8NyCg==
Merkle root: a69839899d35e428e965dda22faa8c37ab9f1f9e8354c5c301a0cc1dd97ec994
Merkle path: ["0c2ce54c092bed2245423b05411278b227110c33cdef2223743cdaa5c867085f","8dadae8c2e126b98d345e6d820de426187e5c6ccb2a0a9f19f6677b7baa6f110","c8e82e719f76c42be048a96808f39cbb72458473b0978b5ee06c772d768d2f12","8777fb70943c9d9299f20bf670131087120508604d587e408f37d98371927747","d6488c4edc283baf3fab485d2994d250f39b9b2a4af6d34be29638108758435e","d6a1a265853b4999a9f79c1255531c34d63e0cd6de3f45814a98ed9ff186bbcd","acacff3ee91647f22a1d98cefbcacef7e30a9e687e39b8843d56cf16cc42eb68","15d83921b72c860559afc79174eb477a16b4fdbc372814cfd22c83812fbde1f4","18ad7c30b3bd7618b83fe1f0afb0cacddb0567530bd1596cfd9d29784ca51f66","fe2c4696cf3079cf43100f3e605dda716ff83bad1b8e879517591e3f96a8c46d","5db50f6c9ddd9142d17c719620599b5b6ab33d2695f643b31b18ef1d511e2391","48072dccf34406d20883cec701fce66bc2705f5d4c15636c2ca8b10cf03adeb2","c91b6bd41b0d77873850967d2a33b58afe5c9b2077c41a3bc5e3eb1e0269e91c","baf50621c43237ae6460207428b54bf7432b36069b72ded7c303da6c80c67c5e"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273174405 · entry 108e9186e8c5677afa7d…
Expected log hash: a8603da072baf84665c1f8a43f623ad1abcc708773f195fc7b697ae45f09c136 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":"v1792120797404","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Alles verständlich gut erklärt","rating":5,"review_date":"2026-04-14","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 (a69839899d35…), 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.