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.

“Exzellentes Archiv für Dokumente und Bücher.”
Google Play · 5/5 · 2026-09-06

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 2913636507

Proof data

Record hash (SHA-256): 604cc33ec643ef2178eb8f25173b3fa5310c0f837253637ad601fce1b927bb8e
Signature (Ed25519, base64): vfIwG3mkwUNP/e7b+PEM+kXV+ZApPCIlpDSW5jBmPdO/9M2xIMu+0A88dH64jIwEC+p0+GbBqXdzaRmvQdDzCQ==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["6048ee2c2eab3de4d5c3ef2870fc24e31c47a192523458e36539045f7aa59080","91cc9562194bab9adc5ed8e507e9ca6d13d8950e07b69f2be5267dd21618d1c9","3d823de80beacb80b5250a8bf4d4a111b6bdc1afc254865e60a7d101848fb6de","f4db90b8c1267bc1ffbffb6609681866d99ab522bda601feb2a2696dda8fa3ee","bb37f9db3526f33785832156a132249673d590d19b8f9867053f0300ba7549ca","14ae42b0379691b511640daca3792c95558624ed4724f3a7157808ad9e2810d4","60b0cba1a93ef1ecaa8766a636b9425c5afb397229a920553a1275d13e8ea832","8edc8d1b36849c29542065c977247e7a3bb6d01458bbafd73c5166dc23a89639","6cb31d7311eab6f62f49af11d9b2a2e329f8d686b9bf470ac0d7fdeed8f1ebbf","bec80d872aeec184c880fc19b74b5c53001f1c0b4408edcfc2b75b29e8ca7436","83f83b22202418896d617cd92b2e4482067ac2ada20be851a6d737545d39a3a1","f3db9127b9da10fbb7693de00cf989028a504ba13d96eb2661dc5a2037470668","eca7cd52f5c219223fa262f727815d7426f47ee6fd8d3c4a33225271415ce785","7a8821e5f39bd89945ecf080ecd049c93644614124901c8b74f26df2e34d9289","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]
Anchored: 2026-09-23
Public log entry: search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash: 417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"de","page":"brand:everand","quote":"Exzellentes Archiv für Dokumente und Bücher.","rating":5,"review_date":"2026-09-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.