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.

“Das freigeschaltete Buch funktioniert nach Ablauf meines Abonnements nicht mehr.”

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 2913636507

Proof data

Record hash (SHA-256)

a43c26b22db23a8b9445ca9ad5b29f2fc5de5ca6dc8a1fab926ccc45b49d95be

Signature (Ed25519, base64)

Ra1pg9tRXM2ow8Ku7vF4Mqzel14T9tShwEBasIIDO/dWnIUIu9VpCv/hVtdz9gVtaR3AQJMCmtjU3Wd/gX/VCQ==

Merkle root

f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5

Merkle path

["a43a2f1d8cc1bb70d7f84dbfd5c64c1ddf136fdafb0c496ff34d1381fdad3d8c","2e2ccd06bbe3d490f7a3af70d54c6555fcc5330193e441c057d0732fc1fd134c","c5604aaa06c643cf44b8600a1f4460b62c1605b042b360646efd7438eb30dd3e","8bf5f5f9f76f92e91448079948cb361f067ea6fdbf46d308645cd9adcc28ffd9","7b9655ca3de511ac93fb7f7e2f9391ae0b4cce4c46b951714d234e8dd8b5a403","b6f33bcf8d8564f1dfb31f69bac222fbd26d1ec0719847d4d92ec5482b79418d","4de1a58f543eee6e9f36341b10aa725d662e7fc4ae797a1658fb5d1974e0e6bf","cda968071389094d1181c154ebd2c3f5219a040268f36b330a1fbf77ba3c0bbd","656747cab5ab4045bb8c7feb0a52e3c651abc1bc7ffde7732a26b41d301fb99c","385dcf9e6265b284b9e8b697d22bfa31704659d5a4dcc5dbd7ed9e20e05f63fb","c610801e08de319c103ffa34ab5b90c021709c86f39cf8da435e6967f2586cb4","dda2bd27fa15f75292648f9c602f964628d9c021f5588053dbc2603c0cd3f589","edcaec9f8e5156b483404ee77350f2ddca893e6ce1a1eb48e97046facf217e60","ebe1651655c8b61b6b5364f1f9c2df6d3d2570b884eb1475b1f154f5054feeba","a616224c7837fee9e37cf9dfa53b6dc52945555438d928215ead84ba8ccc7b57"]

Anchored

2026-09-23

Public log entry

search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…

Expected log hash

417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"de","page":"theme:everand/durability/de","quote":"Das freigeschaltete Buch funktioniert nach Ablauf meines Abonnements nicht mehr.","rating":1,"review_date":"2026-06-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.