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.

“nach jrdem Song überschüttet mit 2-4 lange Werbungen”

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 3177778280

Proof data

Record hash (SHA-256)

3483ab8ffc96d1efe1782c13d2560604e3782e0348990e5ccbec6b18986d5643

Signature (Ed25519, base64)

bXJxUWoHvFd3mbANWTs2dJjyxG4v5Zus4j3+1jHx8nImo9Xp54ezcfcAF95yDCLRSkNjXL+F394cdox8xve+Cg==

Merkle root

9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59

Merkle path

["3484708ed7d3aa3fc0bca1032402c87467443fcd083a439668f8de793edd26d1","ec6582a15f3dc3ff1482ccd0a400fbc2d36f17a7143ee5a12849aa8c5adcef73","3a0c8b3d63fb5c4a5393e2d5b207dbe17c29e4008961b06cd094e7f8cc3f8794","5594d7dea1da48beac85e491231c59ea399db2b93ad6aeca6b327e13f6bc58b1","4e2cddda0ced7cc917de678380c2d85bf84402fe3d9db5efc88352c6de239615","f58848af8761658f2bb75692c4f0a1b1e73791a24408ba28ce2eb4e61daa6cf7","10c1cd6ebf688a62759dc6efa9c4700da24fc6564d1b06c6043deb912e9aaaa5","8366d79057004a9c647980a2727a4a22c580415d146c6962d234a3ebd4e90b77","579539e8513db83276338791287e3d349b65eb1347fb089a5b19de5e95a20787","0793f5fdfdf67df4241e8d4da018c6277c30a86d63f2b78d40040ca9cc6f6360","1eff45bf4b39475a315a580d077b21440b98fa0a34787e81df5293a11f0b2209","53dd6904824ad544916531788d61c0e418742b30a49a317c1dc2fd8a01bbcaae","fb42483682b3119978267e05c9c995226602ecd8627ec630ce52b285c28faff3","09f662acb98b118c251b87092b3ab5baf38f48e2410961a49013a1c2f63f4cf6","1fa7003be7676d7952d939a45bc47245b2ced828dca06428675c885e312c802e"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3177778280 · entry 108e9186e8c5677a59b6…

Expected log hash

6b6bda8efa0d998f344024bc1a70908bd21604d8857c81e0a6e6c5b1de7aa565 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":"v1791603230890","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"nach jrdem Song überschüttet mit 2-4 lange Werbungen","rating":1,"review_date":"2026-09-19","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 (9bf5e8bc71b8…), 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.