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.

“Eine tolle Auswahl an Hörbüchern und E-Books.”
Google Play · 5/5 · 2026-08-13

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 2543700701

Proof data

Record hash (SHA-256): 595e45cef9734e1372d83ba2122c3c3111528490acdae0ebf59425b5eb80b6b9
Signature (Ed25519, base64): jOaVkckCKO9sZH09pinfMuCZh2zpEAEuDQdKC368+bzClH6qSY5rdhuTig1uGp5duKoXQz6eS/e8aS1+B4ViDw==
Merkle root: c921242d78a65e026e3281000ec5ef04ef930758058c4fed3f79f3b5ef992cde
Merkle path: ["595d7d1e99919200e9bdac1d80cf91a5d5eb1b6db3e9da9ec8d45128b190ebe2","4a11dfb969232533d2c2e4176a616fd2f0fe61afbddf25acd086973fb733c78f","31432abf8ea1ef60f0cb808b632db10e7a8bb4e10533915f05f6bd2b89e65545","8a02c881404e85f278f973032844335d10de59631b0f98aba0c4bcdb0153a707","9506d92cf377d5c0919d9dc155a48a2bc44069489c5767da668165c7be6690ed","99298d3c8090e7826a82f1a8b06b88069943e29672470e45195742c7f7881734","335c6fd4c004671bfe66f98ff50ebb16d247497199fc6a9da2451e2825770ecb","28e787f156e850dfd17858170180dc645d21e6017ac6d93d4e2a7933ea03d4c6","6c2ed96d9aa1cd328f87471145d813f4c7f85cded1c24daf6b220a7854f3df02","bd33d9526802cc070bd818052f70b076b6a9c2035dd5ea04c91d7d3fb8070c4e","33f9cd18cb90a2ae9e36c5e274aa0c948a2e5c5e9b21714ea7c96f23011f57a3","0873915137cf11fa0118ec1588ca7cdfbf107d20621661e35a06cd20f2f34728","affd4e3e6ec270a4ab2ae23163aa1a6ec143fc7cb3b6399ad8156d5289cce2ce","a3747175efd8cc3d769be29f15252da2dfd09eccbeeae76e08b0112f75ae1173","522d5a6bf348351e5632579ca190fcb390464957ba4b4698b399695ee13b67d6"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543700701 · entry 108e9186e8c5677ac7e1…
Expected log hash: c1abaf0323b08bce2cedebaf1993162920ee741ace8973292e7ffdd13aca356b 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":"v1787287374804","kind":"published-quote","locale":"de","page":"theme:storytel/quality/de","quote":"Eine tolle Auswahl an Hörbüchern und E-Books.","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=grit.storytel.app","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 (c921242d78a6…), 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.