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.

“Die Chat-Support-Option schließt sich und zeigt an, dass sie nicht verfügbar ist.”
Google Play · 2/5 · 2026-09-09

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): 8ca50b05756e0ec943889b92f8e694c789f74bd6bfeb5303fabcf5b940191f99
Signature (Ed25519, base64): bMmmPyS01qvCL0h+qUFSHJ01Khk6L3Cibh/vrnCQ8TWhJuCdpBlHd6OfVH4mIwqHYOsfoTYKXVOL5Ri22FquCw==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["8ca135466d9dcdf6337927d3cba960ca1231858e39e535c41357abb5389b9926","eaff998a9e4a9114c52fa58ed7a69bd27cfc3d2cf7353204a7cf59a8edcc1446","a72c7352579803097a7af7c604f15782a3160ee8390a526a2c94b10b98c05ade","14ba615c1e31096f1e2e685bf6026125cf9c1c33ba8ea93dcdc307a7b26c2f50","a2353ebaa05f6f35f729ee02707c59f84b8701dadcb8b23f2ea665f2174350c7","e9fc1389dbcffbdac04497c0f037ec3fcd1f4cfb2cba510fb421da823a336831","d521dd823b8f8bfc739348392fc07bca12815770a315fe5990372a21c63ef61b","4c7fd9ee7490d7c2646835be712f869495f512aca7a4623d7c9a869b8b8c61ce","6aae01304f950ce2ecfcd047248b36b9d234c34fd54d381498fd09cc94f24c1d","512d21c1374a69a3787a41f155b89851ff19eb6937e45234c78804ac532f8b27","3ee4c26b3b5e7bee9c8f7c2261aaa73715be73d5f55359c966a0859b79b1d92a","da342b52039afded388a34c4d220b41695f65ea8d9006b7b024c76c455dc983f","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/service/de","quote":"Die Chat-Support-Option schließt sich und zeigt an, dass sie nicht verfügbar ist.","rating":2,"review_date":"2026-09-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.