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.

“Sobald man für Bücher bezahlt, verliert man sie, wenn man aufhört zu zahlen.”
Google Play · 1/5 · 2026-06-08

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): 4b810293e2bb142d924e920f85c8f6fe77267e6d4a2635a667760e9d6f8a37d6
Signature (Ed25519, base64): Frtg5FAIzHaHoHk2Zy5oJBjUMrI6T0+NwKdNHUCJRDKyStCBCl76LDQ77spAJdZiyJ3cnOukZACLI0Sy4y2rCw==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["4b806c46fe48d9dc06d89e738a116049c043ebccd5791fc337e3cd95ddeda879","3e97e8e6355fa38197f25ef684470c1c27f228b27ac2b8876045b5c06f36ff38","a86c103be59d3f23778dc9a26d78209682530cd4873634a5c46dc29b3e4e1533","d9ec0dfac7279e841a6378d6c733815f6b11cd5c98db26bfa17f95b7f8346805","6d84c7d2af3eeac0ce2061a3e4a38822e21a02857faf143195eec304ce11cbaf","9e054e533c4e8b6e4607df97363f127ba897a9d89701630a6cefc0022e3c7308","1a386cd6302bc00672ae066b5b2b4db7eefd2161c59dedd6639f237f2b9a7aa7","dd201f51bdb48f78930f123ef87cfde69363330fe2fcf0795af8274fda2c9fd9","05f2f281b51726e85adce7cd7c737a848e64004433ae53fcb40c29709ead26af","7b7d5bd1485172ae45cfa7ff33d034448cb522d17c7e4822ca588ba4a65258fd","0acc49bf7e88743492039e1945df2231045c91a0ef7bdc077afbaecc9c0c4c73","59ed91997728cb88879bad2b8337d3faf9e7582bde33c223df4df42a8d4a6fc0","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":"theme:everand/durability/de","quote":"Sobald man für Bücher bezahlt, verliert man sie, wenn man aufhört zu zahlen.","rating":1,"review_date":"2026-06-08","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.