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.

“muss man bezahlen wenn man PDF's komprimieren mochte”
Google Play · 3/5 · 2026-07-29

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 3241341297

Proof data

Record hash (SHA-256): 1f1f8ba73801a642293489a88719cfb3f5f90a432a05b533afdc8f87dbfab48a
Signature (Ed25519, base64): 23gUN9GcUiq/naNzRYR5anEAScmVwZ3zfsY39fo5afujL8uZGQh/xJtm1ZbBHWtC2usUWEBddUdl35TYUZ5dAQ==
Merkle root: 4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265
Merkle path: ["1f2115cbebce2162bb5ad5a2df2aa0b46531c8ee919f4fb6396b24d432889802","dd92a10957951052ff73f934285a27a47a834fc9fc87e2a06f5b9f3a35b6fcba","2d84f612882c33970e1bfa187d2119aedfdce796cabd5e2718a7036e2c00dd8c","be2514a57511649399ccb8914a758564482341f1edc0b98aae6a3d141caa54ad","ac02eb250dbd23a9e846328fafcbe11cbceb432312c94dc3704b0c602075d597","95f74c05e9060c5e317e77cf58aaa72c50dbb65ccbc844bbae6530e24a88cfc0","a077d8379b714ed41042bcd55de6f085785031c6dc85fa770fa522c79765fd04","738490261557813168becae45602ccd73281d0452bab6c44f8b348e015c5cfd5","5e54538bd1bc05fa72bb7ddb86bf2eb2a8725afc12d9d94c5433bd0ed82c6608","999d6b8f6743667d7995d1f745ae01eab4b4361597027f3111c665cfac05ba14","869d5c71bdc11cb98278f8177533edddd28deb9d0f3c678398dc6eb0ac9594a5","4f4d0831440aadf9cdde8508ea8672cceb008a30da8e04261a55c46ea8a8ea6b","acc667d852c71a0e84a086ab20f7bbad3d8ae083a1e44cd20501ad641f662bdf","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…
Expected log hash: 39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 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":"v1791866192176","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"muss man bezahlen wenn man PDF's komprimieren mochte","rating":3,"review_date":"2026-07-29","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 (4900b1080bdc…), 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.