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.

“die Hilfe kam schnell”
Google Play · 5/5 · 2026-03-03

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 3258859570

Proof data

Record hash (SHA-256): 13b9d45c9107dd9b5042c81cb4968ebe2eb0b380dccbcbe28c0da08647c4b315
Signature (Ed25519, base64): ASy1g1bwsCMifYZwSPPYW8XklyesGtcpOc/IaTmtTroBG9QrXpAp9pOk6TPFtkNovAsM1TUVOLgt57RZdi83Aw==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["13b1d63eed1105a8598cb7d75fa9a51ebd9da0c95a44e024ba90b1635e9c9277","b3920edeb9db2dc880bb120302ee5d5c333e521affb2df5e32b1483fb9e192be","f0211a669d5197d12c92fde0d09a0f3a8866745b94df80020a49b37faefa5cb9","8c2406954614936e9ff08c94f10a85860a05bfa374f30ad06867af7d1191288b","0079bb8800e1f5ae4079e5cecb4498eba4a82768d12429aa632da6757016a415","21b86dadfe752c0c5a81e392c6893addc1138cc32e6fbfc90c1a14d971be091c","ef78b3e19e1e7d052ca4a28ef603d7d81daadaea308f4ac30bc1397de1efc6b9","bd0bb5e20abd61eabc397ec6f270dad6c02da352b2824a0abedc3467879911b1","6023e1aaa9de19536c149e18b9c08377cd14751139c8ed47dd3458d26fd3b83a","ec33680bdf48dece235131c83bd2a728f78f4428a4454c6c7a0412b932625c21","82910a5026a7e6ca5de409e1fec5e3a85e26dcb97a04bb4734e3b891249e3f3d","c528a565399f1c43ffb0fc3019a2c2cee2d7413a87787555bb34d4d613541976","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258859570 · entry 108e9186e8c5677a8fb5…
Expected log hash: 37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5 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":"v1792034893828","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"die Hilfe kam schnell","rating":5,"review_date":"2026-03-03","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 (ca3049e83faa…), 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.