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.

“die kostenlose Version passt auch vollkommen für den Alltag”

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 2514383033

Proof data

Record hash (SHA-256)

64718f565dbbc24a7b77e860df8c74fab55977a09a64a39905c935112c87e878

Signature (Ed25519, base64)

K+5SM81w0ZJP6CiMB7fV8Jb/P5sauCbVjQJFN1tpC1Ezxa4c5QGQpAfKoBctrA5v4NuRZa+XYY0PvXxFzk0wDg==

Merkle root

197f899fafda406e0c9d0591eaf3664c281655082dfd19c34045187b374127b6

Merkle path

["6473dcbe292aee7c9ae55c82c1b95ac1cd4d111cd21ddc77f0702871753b5f7c","10135d9fe59c7bdd4e1cc0f7d57beb91c5f0e31de7df6f32e59eda93c6eab4a4","c2fd6c2fa72351de342b369c21630c8ac0de7dc866d82aef59b86561a592000b","b8af2849ddece8efc7a71302aa1fe1a74b12cbc8bfaf51437b27cf1cab21caea","c3f34f0af5ecc73df329c8fef7ac88b805315c43def4c52bd59bac394525c34d","dee110f4f5d7d412a19c4619977fa05e3540c5b9072996020e392943e4510e4d","966408647c4cca9e9c5fb6a08699311a6ff244639eb87baaecf03b19321e8f8b","d661c90c10049ec05bb6b4a2f14bdd2de19dc42b8b356fddaa25a93afd35d68a","40b392b98e59cd0c09cdbbe83f36daf8ead6a242ab85afd02e31b6356d78ed48","20f2c242f24302f3b1cd760eb12c782d3a459375a3ebc5216f2a098c2ee8d747","4e7708a88a8894df209dc83ce410baaa422548ae4ac5590314b8935a7bfec909","5e604b5a5ef639be948323e0c4f5e303b5c481fedb2d584ffe1d863b4c3faed6","b26bec0bf0b0cab86d0ac84c71035185380da1f423e2081c4e404f2e13042a04","d72b61e7a45df808bdf968855d1d129de3ef5b87939ca0a06b3c95e25211241c","7b5d4c2155ce4f6908bf1c61cdd8b51ce48d7dc7c5d7f3bd9a7ce68fedb43f21"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514383033 · entry 108e9186e8c5677a6078…

Expected log hash

4e5cbdb3dc34f3dbd6a57b603e905df6c94968b41f5bd83d5c9a25f2ea060d8e 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":"v1787127398505","kind":"published-quote","locale":"de","page":"theme:acrobat/price/de","quote":"die kostenlose Version passt auch vollkommen für den Alltag","rating":5,"review_date":"2026-06-09","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 (197f899fafda…), 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.