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.

“Es stimmt zwar, dass es kostenlos ist, aber es gibt ein optionales Abo.”
Google Play · 5/5 · 2026-09-17

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): c75a699c8feaeaea0b25573fc290b29d4af68810dc89641ce0dcaf5f71c259e0
Signature (Ed25519, base64): h02siPzyjS6HGQkR0/Yg8R2KlKYZNprB5ESEl9lzK6h9c98k4OnKJVqr/CrlpAIOfs17hfda5piPHHou0WsmBA==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["c75b1ad6ab42f10e3dc6d1378657fb9bf34fb356b28e0ca8642e774c311486c6","7a4d3fb8b79730d76df6c0d3d83135c245bf1efb69de8bcef22b5d6c3f4c4f59","a44a4f629b8746db62a18e880abb17713b4cf0c0b5b3ec25d5defe4a73046b55","c308d2c2cc2a3b259a53ae4d19496c9cfbf987d41c6640143c1106000da4a76e","f340bf9ba0d0bebc5b2e9e6dabc9e4ae751501f5296516c7aad0eee7c493423a","b86e72e381e3b179b98c523cd953dc059a54fbe356f872ee3fe63f556e925167","5c26b0a4687b0c28663276608a8701a3651b0b8a2448127747edd9665c77c64e","37b6e30e46494273295034fb685421719dd942cf1d71a3c44147ef324978de17","4b90393eace8760e2a3945694333970052c9e9d1671c7b3449de27ba2a2b2e29","7be99692b1f5adb74f31544330dce9644c845e33963677134c82c62078090163","b0dc38c537eb82e1797634ff3c85b2f502c386d0a2c41284e6c2dc42075eaab1","8f5ec8180fef173ef49bba3555961699c8394cb3b56f59043b48bef17eb12eae","fbc83ea3f323a853561b2d18a7d5d816b1a8631e4674525eac3ed9b0d77501a2","ebe1651655c8b61b6b5364f1f9c2df6d3d2570b884eb1475b1f154f5054feeba","a616224c7837fee9e37cf9dfa53b6dc52945555438d928215ead84ba8ccc7b57"]
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:spotify/communication/de","quote":"Es stimmt zwar, dass es kostenlos ist, aber es gibt ein optionales Abo.","rating":5,"review_date":"2026-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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.