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.

“very good service”

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 2681318538

Proof data

Record hash (SHA-256)

17be1d506706206e355f9ee6684889e5cd90d75c58390ee9b0c29693455c846a

Signature (Ed25519, base64)

3+O/NcISfNtv8vyi+ksj/3YNuggWo1aPNQKIuX+kgao6HQVUXOzJsPoMinSKwfw8NJM149Isn4iX0qhhXKO1AA==

Merkle root

80545feed588a969110bcd2c8e526c8c2e400cad7348c7872c323a1674d2355a

Merkle path

["17bf8f9a06e61d7d69692caa6177666b1fb43b69838f7d1bb1abb329d4733b41","a4721f71fe62074b9fbf13bf34e634fdbaf4c3e848ce0d6a3ff82f2c509a571c","b9b7b75616caa4ff167312e21665ba391b429d0a3299c717031e547e4f2d7571","8e27b6a2067f5ad527e90fa93dc38cbbd3739d5116319da4682e173088c7d266","d546572d9552fd0380b2e71251f492d2f12f91615b87808a02f0cdd8f2a683e3","9adccf4e1d0e2b1b77db278295e678715bb1c1dc324b1d5cb662f4bc30bd3731","9001ab0575fab8a56707b72693a64694567ed560ee60946f7164523b671b2181","26b87f112932a8d96c1c3d7fad64b0ae7ecf9414255ec7532537ac7f2db19e88","a9a52ecebb862edb8df220431beb45328be9a9df7fd523c7d59296606f4e5e67","21482d0a59572fe87bae034967e0a79e78df2d49aebc369b74108d3639a6c53a","2ed6135c3aa75ed368bcd2bc2c9461ee1e8438e1bb1d0f6b257cf27939a4450e","c3f886ba525355d04397dde87c1cf01fe0c5bd8ee99840fea4f0625559d30130","cf85b24fc1eda5aee2e6660fb94d01e1afb915d56f864de60a3987cc95b2cea1","8378d9d6ade0d6214a847a4a8145a9f89a0810e29d8d29962807c9aaac17e271","fca9ab6e6247b2eeb89a8619f295121cacecd7391ef0e06251791813430b969a"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681318538 · entry 108e9186e8c5677a4bab…

Expected log hash

663cb0c78a61cc964eb6f0e00407fec6844129fb0623d2ac072b7b2e4274054b 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":"v1788302168109","kind":"published-quote","locale":"de","page":"theme:acrobat/service/de","quote":"very good service","rating":4,"review_date":"2026-08-03","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 (80545feed588…), 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.