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.

“the telephone line is temporarily out of service”

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 2890214870

Proof data

Record hash (SHA-256)

a65d41f605a6f6b4ed1912c893451e88c768e0831a26aafcaf963ecbd4420998

Signature (Ed25519, base64)

CnJkLklrIOS7op2G7F7d9bBN17b54AgGMJHgzDIqOPJt63/OEYSuKtFaWhtkM+UJ/jkikwUjyuqpPTd8DSplBA==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["a65f8df05f50ff93e8bf607b95dd979ab4c2dc21bc7cf84a17dd7706a9b175f4","ca499f3e610367b94469328c039e44c9e01bee41a4a5decaf155c28e3fee7a9d","ba004bc4179f285746ccdcca730a79c6c0cb2c2a967accbac9b7ef403e100c50","7022d0d2e4c54d3db2c53d48bc420c6b26988aa2f996dd7928587e8410b8a2e4","a80e645fb2fc779e59713004dd47a97deed9056d253e8ba21b3b389c4c309c0f","91c96e79794656b292f4c14dafd5f4bde2b8845f5348a8b511c983787a73b5cb","00ef352ea36b5ce614daf425e017b16a05704cae375a1cace1999242bba8bfed","a5a2b1c0e2c878bd83e935d6f040101d75c3e47d940b9868f6dbd660ee02d83f","d1cd1941311f178aea1d61183badbea82c7d0e8b0a930b34933631183da5813d","064a71e47299bda0697a8aa3bdd88b80b35c0509ff5502d0d7f43f1e63d3802c","8dfef14c860c8ee43da5a380cbe5bc2b4c4e0ee63a7f062311e6ec1f302c9965","c1934eee39f083a1bb0634f445e2323dd708991a6df06ff59699cda4ef1f90c9","2f760d0f42bf27702bb03975eaf8d6ea5e036b0f49b2fda05a97a4b8e2bd9942","8f074eddb198349108c1e544aa98c8c80e756f627b29b4943cfd74cb3331adf1","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"en","page":"theme:taxfix/communication/en","quote":"the telephone line is temporarily out of service","rating":1,"review_date":"2026-08-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (04b39eaa56e1…), 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.