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.

“Datei-Größe wird im AppStore nicht angezeigt!”

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 2543978942

Proof data

Record hash (SHA-256)

6492ad6f717ca00aebee28aec6de86caad6b11fbc24e3fd1b10dfbfeeee8fcc1

Signature (Ed25519, base64)

Yy0YmW9XAZXxn5fIf7DZ9uGSttmTnixwhJcOqsR6Why2+n52pZHDPYCIGX1kuR3zuo4aRPurKPV/b8TSof0CDA==

Merkle root

3ea09355a1b22a15fffcd33ac0d37e4039cee2896092e637dd8c4e7dfb5d507a

Merkle path

["649acf0ce0755d789454e17dcb5642edc4651afb451f9441857f17a4eadc8d7a","ebe951dc351c6a10dc3838ed010413fbec0ff7729965a3e700585609bb281567","868ac97f9dd409bd6ef6f0b1020b74572a73d16059bfcae2ee15d6dffc1191b9","b490bd6a43f3ffce8a4742793b6c0ac73c96274dcef2fb2eca16d3774f297ea0","665a89e6d91182790ee0d1f0180b53aed6c5fdcc181115a70d0da0423a47e030","e77807c7cb28eae514f283b37e38ab487578200955a006e8d594772baabe9ee2","a68c810af2beaaf508283280628caced02fc57c84942529229a80c51df116a26","c272ba27fae7ea57e0b3bded0fb26c6e3e450dc815728f179fabab1c869e715f","87c1f8320712eed67d832cd3852b6e4b1fb26ac616c74f7b2b3d05c2c4866c5e","fe7b910bb7c163a7333d1f14e9f87d7ae05f51fbb113a77fd87fef9391659fed","d7abfdbfe5bc0af3421bc238951e987beeeb93ca32ff00a20c2d00aa55df26d4","4b61e0ec42d19f86b24664c45aeb415bcdc17f750f06fa8c661a8baaf980e7d3","0ead555428295332ed003e76021a0f41139c28278eb5ac0da90eb0f864c2f749","d8ed3a5c7d4cd902063782d2b816101a433fa513967f9352f92e3b3b0172862c","331ffac0f34e1f76cacd782a04285f7bacef5f5dffbd1f8163703fce9b22280d"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543978942 · entry 108e9186e8c5677ac836…

Expected log hash

69ff2d97383073bd392d75b79533a80cb25c69be55aee7dcb24b1acf4a379172 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":"v1787289230204","kind":"published-quote","locale":"de","page":"theme:xodo/ordering/de","quote":"Datei-Größe wird im AppStore nicht angezeigt!","rating":1,"review_date":"2026-05-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (3ea09355a1b2…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.