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.

“Diese App wird mit jedem Update schlechter.”

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 3178115911

Proof data

Record hash (SHA-256)

1cd1972e31edb4aea88b08b338b822fdb14b6a81240e45c7832ae1a4360e99e9

Signature (Ed25519, base64)

BnWVWddVjgYWUj9IDEXutsFQ+1KQJpvpd1a/seww4ijR31Y7EE0ccGcqGkLzy18ei2yo1u6wVY2jTg6EC1BBCw==

Merkle root

afb9ffbb4b4e88017e1c868247f919ebcfe69f09127d391e7daa08019eb2b63b

Merkle path

["1cdc4f53240e75e39b97dd7626f7694612a608ce9a16de15671c85b7b688880e","4c56e911b03e2f77946ca848f214589271c3c8c195c2265b257ed62befa9e99f","a2d5a9e190a0a44b7257f84529fd9d61b551bb8583d8491e8f7c97c767acd66c","4d6b301c662e96bfcb013f2ba5a98f16a6be47ef415e102dfd45b2a9397a14a2","43ad1725dfbd67dffd879b3e9f481254b64a4293f166ffab80bf467d06ec2ea6","7d641c1d6fab5eac2e6a51b5249c5233ab0d6eb6bb47c97cf692977bea4283cc","cc42172780b6ff3b4a284f5179b471f8375a2771216c0821805169b61e01d655","35d5f250685bf6ace7afdb61b467a790c5b4ec77aa5a2c4ac07706f399f8391a","27974da074b13f50796bf86f6d74f1b32f000cb477625fe75304ab288ad80fc9","87611064aac4cca94813683f4e2a740ad27bc7fe1a1802142057f1f94de0e5d8","2dd3f4cc0ce148d7d51c1e3bfe2d48062a5fd704540a9bfdd861a1055ca54f17","ec08854347577678bea6aee9937042bc6beae2ec019209b55d90c01fe9714518","09648cb4275ce9eb9f26709778da1b3653a6ea84465537d5f6fe5c1b17d3cea0","15ecb20ce6559654c94b8b858c027c014996a92eb19771813db0b794d6214fb6","72bbc4ee0a973113b1d556f76d02fea2c4704794a0d313a96e49ff7b6174dec2"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178115911 · entry 108e9186e8c5677a2bba…

Expected log hash

a144ffc32dfaa9fe45b4895b7f4c17280667152868dd8de227ca2811c60c870f 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":"v1791604579182","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Diese App wird mit jedem Update schlechter.","rating":1,"review_date":"2026-04-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (afb9ffbb4b4e…), 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.