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.

“Mir wurde mein Premium-Abonnement ZWEIMAL berechnet.”

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 3178600936

Proof data

Record hash (SHA-256)

8591919e85eea27a85f31fdb5a4af6a70e9058bc3beec4a04af24346f0edae70

Signature (Ed25519, base64)

ElTvw9ebeTEEt6USxurgH8Ck1Qn8ikOvvmxgBVlTT/7Gp2esta+NEQ4qNDytY4WYBn5KYDV5kM/pnodqB4w3Bg==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["8591c481c575ac8301f8cd128430d374334cba3a40b56517dc813018c71b67f4","c2eac61f29eca691564dcfc0cdeaa0bd0dce472ca35d7c19ffbad1276fd33edb","a7a61248cf5fd74a1df19e1b52dcd64e3f4039ca3f6b0f58c175e28867a36060","0fd675cffc3b207084e142be7b703e4c6405b67541940f8213ed4e0802d809ea","7ae048e43c5083e75e6f251cac316b69c851730e695ea83959a482b8acb96ae0","9ac2ef1e353143e887b1182d154959f54ce2134eca4b309931ac17f27575835e","70602b07b2c2a83b6c3cec4ea3c1a624e06424e1fe182babcc023ad6e2050091","fb526acfb9ce787449921894a6d6767297fc19d4c991ee3cfabd13350ae00dec","a5bac9df0538eac06f5548a6df2b3ee76c6533e6e99c2eb39b7902a9150c6190","74f8af8ad49a99b53801bd41f6886166cb9d334646d7cf7528cb1370f9c93aed","6f393bec751d776b1383d4a3edd07bc7a9da0957dba8eaeddda73e24e272d993","03109236374994d37cb03d835f824eb739eb2a726edd95454da9d25cea9f6c11","7461bc2d06b1d6bef7145de580cb46d87ddc9fa66e098a96698a96372c033f50","f5776b4aea049b369136550a2eba5c5f94aeaa8e5ccb2b2ad336fc6ccf74ea7d","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…

Expected log hash

f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Mir wurde mein Premium-Abonnement ZWEIMAL berechnet.","rating":1,"review_date":"2026-09-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (eee462924587…), 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.