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.

“Alle nützlichen Funktionen also lesen, bearbeiten etc möglich!”
Google Play · 5/5 · 2026-04-21

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 3198489507

Proof data

Record hash (SHA-256): 2204fed5d6b40f987c89255166a87609fcf569b1a7dfe5bc3fc388f52e244f43
Signature (Ed25519, base64): vGTrAzwJkbRH5QhaVFgWEAne+IHkpFil71JNwM+YabC0N16nPhBm3hgB9IzOeP2mKR/+FKzZWoFFI6DV3jdDAw==
Merkle root: 240cb93491796b59a812f7182e64c43781541345e454701e4066e1786c286494
Merkle path: ["2200baf2998d3e1b5a7b0ce258bb918f08b42bfd9f66218166472d2714e5762c","5aaae6370e63816b06af3815e91b57318d80cb51be14b9aa0918d887afcba137","e82f67a8f34677d4234bfb9122e997897ac7f39bd95c34fdbf102e07c854fb26","35424e4c87292338556d4c602ba716efe6c2f6ee0fd0791899630bb5ff16aa59","275f56b3ddb173f6548437d7104aebdfaa0543bf7f5cd6cc3d53aa80cb5f7192","2dbd9319b1f9865c56ffa40ef9760eb407b7b13e26e0408f7308b07458eaf3f5","514202751e3d1a03e3af180da7501ccc01a8e9bab5fa1236a09cf3e86b7f190f","467d0e1fb62ded8a2d8bf37202f703231ef8cc78c2315763ce4f6ae4f6dcaab6","4f1d4dc0302ff41758fffee0022ff7cb2936d80914d8fc82c0f77e562d8a2f33","ab0bf93f46aef8fa3504ecb27db0d3a759fd30aa75e3da7c409d3ed398e929d4","5875a01980fab1ed428afb1225d64357cb880ae3126d5a5d3a8e239ccb3e8480","ec9ecaaf6ecd25e70da3b6283bf48b73edd2937bdffac512199306f1e5863dc7","7115b4e40dabe303dca48b39285385aef0729dc23733c818e0f3ca68286a3ee4","0d65160dee55e809fe06e5334fb3150d04f822ce1cb47b2ae30b5d21efdf0eb3"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198489507 · entry 108e9186e8c5677ae5cf…
Expected log hash: 50393c13ffd4f8ef4c37424a8293b422d8c3ecaf6b9593225e2bb93e0cf2c210 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":"v1791686710415","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"Alle nützlichen Funktionen also lesen, bearbeiten etc möglich!","rating":5,"review_date":"2026-04-21","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (240cb9349179…), 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.