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.

“Sie waren absolut hilfsbereit und mehr als freundlich.”
Google Play · 5/5 · 2026-04-16

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): 27d8860613ae2653848d6d9a043b95494b7ce638052e503583bd102ec5b922f7
Signature (Ed25519, base64): 2ae/1gB1EXic1AhTHDsj1H7F1Z3Reyf35pLzohtOC1dlt9rWAFNXlhjNAKKX1lsU9qQ2Vf+YTCorauEdV1hqCA==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["27d46b7fdc0a0d2303285795f365870c2fadca83a8daf3f9b85e08bb50858834","f40f316db49a17a5f7d4cc4c5d996b89879813670aa9401823237df2dab86aca","e2eed53cd9928556f0053bb3665d63221ccdff2d98aef170008f346ffa920659","9ba1d4695837f2d198fa394924762a216c3d0448db49446796f98cf05087293f","f427d101bb62ec4461528af4f2586092b51dffbf21350a8bf379ca0108123a01","320c7f838d453de9cc4e1a70af7dcf17f9908dd3725f80b62c5be7ab51fcd3ed","9da45606ab86a2d931c1e2cb9a97c35295966159045385405974325841c7077d","9eefa47dcbb18297ed5653b8dba70b7af269eb066217a4f766fc411a570be1c6","1ea93658beb3d81ad8f51fec8e229b04f7b5c7554a48c8fda8b33c0db112e50f","4bc2e3ffc9f088a5a75d0a3a54c49bbe9c6168f4d5fa4856dfbf4aea8480b05c","6d6a0b8d59730c7bc4706c35c39132d6a828c2ddf04feeafb85ece2a3bbe17a0","339ef00a6835f7da3b82e7060fe7ea207d06b43a68672c3a701bb61af0ed0863","5ef2d0b70398ea508e6c490819b91bf39069023f910bbf3a50f0ba400757578e","0cf751b4d000491c43eea40a33568458d763987b542601ca0644e491c0b04ce6","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":"theme:everand/service/de","quote":"Sie waren absolut hilfsbereit und mehr als freundlich.","rating":5,"review_date":"2026-04-16","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.