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.

“Unfortunately, you cannot select the advertised premium matt paper in the app - why not?”

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 2472814974

Proof data

Record hash (SHA-256)

14538b0ca036dad622493f40a2d91d560b017b87d00b361407319ebf224a2474

Signature (Ed25519, base64)

p08h9i+SZB80FKLUaNlTVsuB8kulOM4wh5od25b3ehMKskclAGNKugNmD2lVurm4rjDe3acpae6SYrRy9HISCw==

Merkle root

d390b86bbd838084ebf43940c195a2bda110d4344b82c3cdeff6bbd529b45977

Merkle path

["143e64adf0715d91262abaa3462835f422dbde0d454cb77ed13bffbb767a9ce4","591ca1baa5c50e08b60602ec52d1bdeb97fc10c48f6570fa5b0219fe6bfcdcaa","2d8c937d65ef6ebffe58c7ef7f83d76954d7680b45d25c104d87d82afc3214b2","bd60e92229ab76b8e8d528a60b62e63de03f2696f18f7a98f38fa782c028808c","7aebbfe6d3a42b644b4036bf81f7b595d48f8cf3365b6851b88788ca9220fdf6","8a87979fea16afc9f17c3289038511b9563d6fa0482d557ad2d5db371cdc9cd7","83b7871a41f59ca5d84e304b377b617eb4b63da1c8ff52fbf019f67734d5294d","83234e7630b69780e635495650663b2291ee59aba0f8c9a55cfc98e401f23e05","7e549c5a22f47987733cd4963ad115b2fedbd4ac9eb95fe985e7ef7124df80f7","5972f58f62de2a247b7699b4cb7cd19a31fe574d81560801b87833b40d33c91a","21d0f655091e9954638bfd62c1ef3b6a638ef4f9e14a2f4510c52e21470e2b6a","e07f612a57e21545e77c854bb7a8d27adafca680a2bf1e7ac94bcbecd8de344e","7d8c9dc66c6d1a7e29865c552fe5c3a8b0b093af902aa0e273a4374f7a4b9462","9479ad1bc9ed26e65cff6b83740a44f0abb220f766aef6f6fce26a6f19999afb"]

Anchored

2026-08-15

Public log entry

search.sigstore.dev, log index 2472814974 · entry 108e9186e8c5677a1403…

Expected log hash

25ee51470161f8735096abd582d4dbd156e37990c1a2cbd3567627999c96657b 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":"v1786768129032","kind":"published-quote","locale":"en","page":"theme:pixum/material/en","quote":"Unfortunately, you cannot select the advertised premium matt paper in the app - why not?","rating":3,"review_date":"2025-06-11","source":"Apple App Store","source_url":"https://apps.apple.com/de/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 (d390b86bbd83…), 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.