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.

“Ich bin sehr zufrieden mit dieser App.”
Apple App Store · 5/5 · 2025-07-11

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 3102753131

Proof data

Record hash (SHA-256): 043bde204db0fc033e1623b53cee527fb9d04199d8a1cc9f11d6c450de327902
Signature (Ed25519, base64): qFo4CLSyHFmZJ+YB7TGPCoHZ0r0LGOyXOnPX6F9H3Q2b4l7uqVHV5ZCZL5wriCCDRo2PjT2OqCo6GHkM3clnAA==
Merkle root: 92de3fc6370869ec6c1d0482494ff1816d45e719fbf27ec8d8d02933c2b7c658
Merkle path: ["0436ec73b364c6fa4961c31298553d29a826091477ad0cba089066e21e18ea55","425075aa4da2dd51576b600ad5351c798d323859cdede9c35ec7c1015af301b9","694a05e45e785e5585b114cc4199c5d5ac6db4fa94d634e8484b25f94acefa92","2128a22b4ee437ab475b3ae1f5b568189d07723cd96f3dd1da942cfdc55e0243","40ad54a69f2ac2f48c7752af8ded7ef04cbdfcf6e0ece7416764be0f4a0a5648","d57758ebe9c883426335522d4d509b415547c5a9e523df92368132e518f4f4d8","c0d3b90b991cbc419a616106c7db60cafd90d41d80965bbbf3a8ce986dee9bb2","3c0832ed7fa7eb22f7634f13bba61f3d950118a727b8811ac8e9109a7ce59dbf","d443addf18ca7df29b072e48afbd0a320dad82aa94f122fefe949277ed45e753","ee8e1ae13532237746659564aa5c5c5723b47cd530df65f4fcee3379221dcb90","467caf38c60dbe9af82bf4fa2868f551727fcb3b5e4e3f596cd32860835fb208","a2cd65cf0319b43e2520c11c2ee319239973e721415ac164d62505989335e76b","4825c613bbb234042f9b1f0a747dcbc90d2d07cbe7a958530b305e1113d9b617","4e60c8870052117ad280950bee2be0f8a355cdc9c18fd48de6f1a997eb38ac39","a501be5c1ab88f300525e7c01289a28bce17334eb0d8acf270b9e649519761c4"]
Anchored: 2026-10-06
Public log entry: search.sigstore.dev, log index 3102753131 · entry 108e9186e8c5677a9761…
Expected log hash: 5cca28352ab3a467a358005e8b17999e96a5be0f2e71c2152bf575d4cd8c238a 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":"v1791264491480","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Ich bin sehr zufrieden mit dieser App.","rating":5,"review_date":"2025-07-11","source":"Apple App Store","source_url":"https://apps.apple.com/ch/app/id1485259500?see-all=reviews","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 (92de3fc63708…), 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.