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.

“Mit Abstand die beste Proton-App”
Google Play · 5/5 · 2026-08-12

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 2670833107

Proof data

Record hash (SHA-256): 04754066e6310b186765e7dc061117bf68c80e7a76c79341ed9050a0250eb97c
Signature (Ed25519, base64): NtNqNCTDKXASgdEkjDoJ2D5iZPFGkO0oaCpjhyLjW5ZOe/4fAtQdTUD01OWBUYRBuYZcFg4Y0dg2/PggUIhpAw==
Merkle root: 37bab7ab6bae92a907497e5a4ac9fef6a8cc674cc365cd962e5b33be029217d4
Merkle path: ["0476b7ea8ea591c536c64761660f98a314a342b3b65461962b56dd624578104b","45fab09ceeba3e527742e52fa8ac92aa001e33c9bb6a51ac6aa90da2daf87851","bea54de93a6f6dc3a4ae394bbb016ced838ba6705c67b810456a985e3516f893","67aa3daa250eb71368038d1b585701fa7356883fcd56f5251a4948e1d72163f6","cf9781cf5813511ad78282833c72a24e3838cf9d16cdf8adcb1209e2251e33ad","af299c8fc3f2468f0945a2e065fe6261502900f7e167ef4b5f1c45ca1946db45","45b90e62a725889bf596c49d65c7113f018cac83a800febe870de3c6c42759cf","3d0617881992e558d151fe1198c099d646e91edc27edbeeffc002ecc556ef35f","4ca37fcbbcfa1f287e75eedbda829c7fadc1d420b784e3f49688e522359bdd02","82f050dbb3d8cb0518fd1c097caf15aacb01feabc0692abe9d86ae86ae165aa1","a6c31f8706905d02f5e2bbe136b8966e1df98326c3b6108407ad860b65257d39","c9b120504e13ebf6addbc5122cbf40e7c38191056b31c8b51d2732241f152229","ec831a88cfac83431928609cb4878ed5619e6065160f677d7645e0479a63a3aa","1c8a8edcf77caa5fc3af0401d1e3fed2c8693428493c7127f3e51eef4f9cecba","61a69baf0202b9bc9628f4c2534169a082ad6e9020746ee3a84c82ac414b68ee"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2670833107 · entry 108e9186e8c5677a11f0…
Expected log hash: 93b6693570baaa3e2327aa4b03aa01159ba10923124d4cddbdc139f813f3f422 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":"v1788230822517","kind":"published-quote","locale":"de","page":"product:proton/proton-pass/de","quote":"Mit Abstand die beste Proton-App","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.pass","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 (37bab7ab6bae…), 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.