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.

“für 17 Franken im Monat ist es schon sehr viel”
Google Play · 5/5 · 2026-10-08

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 3198797320

Proof data

Record hash (SHA-256): 39deed9bcd65ec6bccd3e5420795335dd7e547e3b5d7ac00acf6f1ed1cc1f76d
Signature (Ed25519, base64): a5pIfyyfU0kdgwQfZrqt1Qv5xYoriWOCY6fq43lfO51+g3TOaBrPwOLi5EBdfCsjmQVW2ic8vsPsxF74XE8rAw==
Merkle root: 199738dc68b66dcf66f6b0cc77e2cba74c3bfda88989684620837b4c4e64818e
Merkle path: ["39e0782278f11055a02ac6fb32fd3ad43539b80649cb7d2fc7f7e1eb5c44c6be","f588e444797416986400a0316f1b7e4611d8d2cb88179317b112dcfd51b6ec6c","3429ee4b2cf613f317c57015155423867a16aeda1e640f21cfdcbfb42a90e718","125ee9f8c6279d928f7584c8317c5b063b08b86d7c598f3b7b1ff066f59b0948","c3482ca6e8c5729645fd3bc6d31699356d512d6b70a7a87ac5eb6452a7190122","4dd60fb83fd4fe58dbee81e04370337f3fccb34117311511aea8ad03b682ffa4","c54a122b1c9899270d9798209e61624fb959dfec586e8fd8bf39ebdfd99be3a7","a28e9cb0433fccab04006d05d41e3440ac747189549e72e8ed42e4918253da42","f2427261bb1d90cee00b4d953b8cbf67a13597adadd11302d56d8cabcc8f6bb8","9e01e90169c58d0e9b8c7d14462d7d473e8deae3a1e49b9e72a0898248bc82b4","044d29ea84c64121195ee0232cedf7d4633096d16816562b08b68059aad62a3d","c2efc19050cd51016477281115d61ba0bc460759f5adf7f1bbe5ac7cd5d2bcae","89c2d1ad10f8da8a1ced326bfbd1f55882866fd705571bc337258b3314dad42f","ddc8a66e59fc8f0934334cf08e419f621290129e658cbc58d8ec27bafd90b0af"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198797320 · entry 108e9186e8c5677a14ba…
Expected log hash: 46227e67415cdf5b62c43420eb8b7a80b35acaa912410c2711787f678b77c9c9 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":"v1791687727006","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"für 17 Franken im Monat ist es schon sehr viel","rating":5,"review_date":"2026-10-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.spotify.music","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 (199738dc68b6…), 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.