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.

“I'm thrilled how easy and quick I could create the photo book!”

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 2948162176

Proof data

Record hash (SHA-256)

1459f8da5bc506f472eab3eaf481e26f12536fa68c95bd2ab1ffd11539e24f09

Signature (Ed25519, base64)

cCFaIxoBrZR4uZ4dsavJSPXrWBFF1Ss1M++m4bkvQouQU2tUxv3ptxkdsWmDjYJmRDvpMtrQWzLWfvUJ6kXACg==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["1456bb8457f68878c48cea0af03b54668bdc238597e720db24a097b342c5f630","483a36bfea89b43f6c010f0df5cd291c4fee50ac158ca485619878802c64e0a5","3bff013d8bb3cad92afae1a29fd26e180a01bb606f3c3a7aac8302390616d53d","4fb5accba266daf6b724beff947cdaf7fba632edcf90fbe252936ff2bbd6c2bb","3c76e444917b1e2a36af844dd197531841556f77541b95a07ad1bd87d7166075","1ce6b739f22ac3b20376ed93b3b4fd63aae46e242019d37817b4c9d1f2f94597","9835c551adc5c86a875af851cc72035210a7c59a297e7b9651809ba68f24d099","fdf548946ab30b4e2b3fb4cc2fad6171b4f0b10e451a3fa546cfc25c4cd40bd3","faaf2add3a3f1d0d9923734ae2a176636ef5cb1942d631716510cf1bc710c531","b3e1aa27010aa1e4459960cf9e3aa390781b00f56a5f7678cbc7229eb4f824e4","026ef5a0b1eb3fe6da2c140a5dd82487156128a94b90bc21aaa920949b4159ed","6364e68670997f2580620295dc73fc1bb7219986bdf8202c9b9ef24d8e7f20d7","a46038d90afa57a10c269469667a209623fd066d3f084698343feb099fcfeaea","e892ec98bb605644ecd2848bdd788a136c626ca940d293df8f2f1ab99110b2e3","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"en","page":"product:pixum/fotobuch/en","quote":"I'm thrilled how easy and quick I could create the photo book!","rating":5,"review_date":"2025-12-17","source":"Apple App Store","source_url":"https://apps.apple.com/at/app/id1319898516?see-all=reviews","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 (539721061967…), 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.