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.

“überrascht mit überragender Audioqualität”

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 3240367269

Proof data

Record hash (SHA-256)

282bbc74f88329db7d5442fe6a3f7584b31d62c95538f33bfcb5d8d3e2ae523c

Signature (Ed25519, base64)

meKi/UTedRsvcyG8dPw8q/gShzW+UVp/klGDL2iwpGEcvIyyJR4f6alpKJjYuf7SOAWpw8ntNqHJ7MUHstFiCQ==

Merkle root

1da6cf8d96c8876e66e82e9bea7529c76d7e25eda1c07550505caa1baa49c4d1

Merkle path

["28372852bf7f635e724a31f59f8ed7e4ca4ff2097ac0a2a5ad919b7dc09b305d","90fdf6fa35a9d3c18701e370a1d9be23d174e6e3d3c313767ce7b19968f79556","7c62177aa903d4627b209ac8c134668c778e72bdb0e04cde5c160ef32e143f47","1d95d6937ce032a5941d41e2ee509ec0c5ed11c41c1a6d504a93464e1eab3e98","5386f82b517701e96889dfbbc3915bc0481224015dff8146bb4b20fcae27cfea","cd9f359f2228d778b53894f95f91a9414df8d32264ed50db2a8812b9a0c81105","b48be9cdb1916ea40cd8ef1add70b5e17026a9f4449f8f62dfd75a8b7a4881a0","3891a89a3876b589922b15bfa094b30f0c14c692094593df84ca78e7e246b754","f2b3874f3a02819c5e545821f2f3b50f05131d3d5c2cdd8fe5a7b6178fe017b5","33623d033badc1e3045bda66a3420dcbc0f4457291b810654d7c274662730e68","4538d2af88491ec228f1721babceab1a37ac1f9230be10303e5ffe866b674232","ae52329abaf68e9da165e516499bae5b8b1835a4e008f4e52a7a7b160cafc13f","d0886e619546ab8e630cf9041b21d39a146861d5b7598b5044808c3537212a80","2d81003ff1cd2149e42eace973cb0f4cdd39b653f7b06a20804a1f1025023ebf"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240367269 · entry 108e9186e8c5677acf8a…

Expected log hash

f6397ecd2b8639a3c60345d0c567eb602411c7eb1bead248c760bae850816087 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":"v1791861381931","kind":"published-quote","locale":"de","page":"brand:deezer","quote":"überrascht mit überragender Audioqualität","rating":5,"review_date":"2026-08-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=deezer.android.app","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 (1da6cf8d96c8…), 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.