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.

“Very good app.”

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 2890214870

Proof data

Record hash (SHA-256)

d2a98b3aa6bdc870bdf2833d12806e26488c0ee8931599c60b2b4b9f1a61bc78

Signature (Ed25519, base64)

8FGrndaSXHuhuxjkLhbOlL6oyjA2qCcQhqklaVrP0UE58f0edQcc/GsSFF0Maq7RN/mIoxV0yj6+5cJTYsnABA==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["d2a848b753011de90c293d705c7bc875d3ab5f64457cf170e1f373ea50cd8d49","e0daf072956978116298655d0056ba22368a61d4a900568ea63cbd9d648e282f","ffe858367fc7c698893ee81d76b8796c402f5d260e98c97566766060365ce62e","e105f8a894662cbfb055a49aed1b362627ac72ff25e64c581a12cf77e67a8eb4","b846e8a1fde6bede4a13ae07cc7b777210445cfdd34fbcc2aa965e645cb106e1","41b52967b81af613d2865216aad3b1ab2c3b3aab43abdc94f396ac89a757b374","76cd1483603c7cfb75fa46d9fd17d416767c3ebc3c31ebd866a152e1408bc5f9","6ce709052b776ad02605cf488f9d3057f75729776265b49d89df0447f6fb4088","4482084f203dd815d9a79ec6c783c776f5e00c5fe8df07e7682dc6cce99bb177","cf935445ff975f4505d5452ea4271fe09a905c7c6f1a1cfe5a07141bed07035f","453fa27ea1e65909670d992a4fd0e0c95973a81e842bd69f544ce306a20baca8","7d8dcd3c2c054442ec809000987dc404e49a1634f4740debd1444d1cd270d9a8","77c7b6988870e1e90529e81d4533964f2663907157dc1c87878656cd074ac437","8f074eddb198349108c1e544aa98c8c80e756f627b29b4943cfd74cb3331adf1","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"en","page":"theme:quero-delivery/quality/en","quote":"Very good app.","rating":5,"review_date":"2026-09-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (04b39eaa56e1…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.