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.

“Hab noch nie so leicht und kreativ ein Fotobuch erstellt.”

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 2621546391

Proof data

Record hash (SHA-256)

17ab3911e2b463d6db84d6215b4ad6b8d06eec716d3b131207349f4d118a2c3b

Signature (Ed25519, base64)

CbYL1aDU1yWBsfVJR3ygqWzCQvT9nz/Vp2LyrMzj9ttt9+BqqB3w0hsfLQNN4JmNA4PKLsBuJ9vn91hYF2k7Bg==

Merkle root

897094661611c7f6f667565ccf24b086fe433f50853a89527920398c9b990be6

Merkle path

["17af1573079a1195d37bd95618af23b3f21ba9893e3dec8926c68eabd4940623","85507ebca7712e41e5d173a0fcb89ded28b76e250305929333da59dc3f505991","48b23b42d20f9bd5d60f333e48e2a62b79321a289d0a0a500da45e5f46ecf701","880385e1deea5005e48733426addb24ff883d91ac3a534c109608816d703f4de","a215cdd11959d9aa27744b9c9d10829e7168becc2ece88af526b8908df59c7cf","6c9d2b52b9e18a127853531028195bc24142389ad12bf1f95e32335d00d442d3","e3419a5b970233c8afaa127e18ebe0c985871d116bf1c251a9101603471a05c8","8e62dc25f1dce8f2bf2d6686656413ed40f23be837a28c5a8de2b3bb37ca2bb3","8bee739c870a464078ae973c82ce4b43d3eed6f8181c28f4c0c9facb4bf84bf6","fa6c2c707de821632ff349b85787426150b4ca8d1cf3fea9388f52658834da8f","c8b1c475247a3d2e91bc1f47256e0144b2642f760eb5d243346feb1b672de686","09a083028020c91bc2808e8c5ecd3d56e0184d82730a5c116d8b0e194f997cd6","5736b14a6ee95db57eb4c7d974614539ed67fc54a28619dfa971729b31256280","a1d9d348562bb2a87e7320356d42d9b0f701087c10d37ebf1716b02890730e63","6bf2266db580f32a2ce774610d26c445305bbb4615cd5a57e78c4156611f45e2"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621546391 · entry 108e9186e8c5677a3763…

Expected log hash

ce42e5a10ff40e11caca7d6020944d319ff4f139546f9e6702c021de8b61d36c 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":"v1787889108108","kind":"published-quote","locale":"de","page":"product:pixum/fotobuch/de","quote":"Hab noch nie so leicht und kreativ ein Fotobuch erstellt.","rating":5,"review_date":"2026-07-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.pixum.android.photoworld","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 (897094661611…), 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.