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.

“it's already my third photo book with Pixum!”
Trusted Shops · 5/5 · 2026-05-23

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 2579644936

Proof data

Record hash (SHA-256): 154276e382f505f4029a0a6caadddc98cb867ac7deecef6f7030e84e1d9793cc
Signature (Ed25519, base64): J38zRPSqRWrX8EMHe5PEhDFidcTYtnX0sViw8BrNnI56s41hodyiccI/iD4E7gObYvd/6sruqEoz1TfgKFgoCg==
Merkle root: c768716b2cb21aabc39de506951f775443418285e2c5eda072e3b3c2d945945c
Merkle path: ["1542031c71860e7dd50711a4e6cb4c0449c1dbc26eef278d9f9809b4ce09e980","c90c87177a961c2f2a6a1fb8cd6bde9769b4f80d8ca1328f194585873afc97e1","325c9706f00f9d7650a7d7cf6b75d379ae999d43be25514c9df1cf82cec8b2bb","3e21e95d7d01d2db5b369ed44570b5547ace98c373af76d2169cca49bf93885a","6bc1d18253983d97d512544af3f0ad9bcfb2ffa2a81fc0a5d223a9bc4417c199","c2dfeed3bbc5d4619654de22dd5ba1491e6885e8816f52ff8ffb5221c1b1c830","da942be0bec8ecfebf6eb2aae25877db180091d779b91b7de9d552aebb994707","60ec17f664e12de0cbdc9522d5a134cce04cab27d71f36c2aec8ed4debffd1ef","7de5e11f258efa072c66adcd4bbedbee6789ed6a92c578b7f90a861de7eaac09","33f807db4d8101b5fd365bb0a64b483826f30c92834bc54098fb10c49c010102","10dfc38d92cb808570efd8b4da55b7412af5c5f73b2e89fc3d852f79952a14e1","2040ad8bb83c34fc495eeb8c9f81caf04fd90dd5129397bcf00a3351408f61cc","38e74f19a86a1311a4dbfb6ff75312ce32e1ae47f608a45fe54b6162c0fae8f4","58ccafd37278be2b9508db439c14e85a319c2716b397eaff7c959a5020ac606e","4c61c84fffc3f3248d19b221d821cc3f0e04d1cfb4151bcd103cb5959dfdd5ed"]
Anchored: 2026-08-24
Public log entry: search.sigstore.dev, log index 2579644936 · entry 108e9186e8c5677aee79…
Expected log hash: 3a9c8e6bb3b2990f2171448c5468a63b9d6f8bed98ee1b72cd7d6f73b4663243 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":"v1787545182186","kind":"published-quote","locale":"en","page":"product:pixum/fotobuch/en","quote":"it's already my third photo book with Pixum!","rating":5,"review_date":"2026-05-23","source":"Trusted Shops","source_url":"https://www.trustedshops.ch/bewertung/info_X3DE729F568C455BB31536436C1CD5BB2.html","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 (c768716b2cb2…), 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.