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.

“Ich kann mir Premium nicht immer leisten”

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 3163461995

Proof data

Record hash (SHA-256)

85fc3dd38d857371d9182b1a5958e7cc46ca2d95de7477e0c212a44e4977a942

Signature (Ed25519, base64)

jyeQtXU4ZkS+pxwtfyeEeBhL/RJu/milyeomLgbHSLWw0cRqNVaiknzo4XkuQCYeQBv9/SiPwoX7JiqSmz4oCA==

Merkle root

f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2

Merkle path

["85ff706939779ae4a019d7445e04c8d71ea9ff79093b4574428bb41dba762234","387db7de6b6c27bede3e2d4dfd86ca717c5367a8d38f2591a6de2bb4cafada31","cb13b0187792f0625d1a799ebc6a55ad56602b73a3bba07e4bb5e0b54e9ddd08","12aed2d10567c8348cdf15f1f568a357dff88279c40a5bc32674a3c5ee0b1b44","bc4c147c9b411ac0cc39ef76d1f4bbd1e84906583614e5693800bd73321f7f85","3b62d959520a53f9da8ef3be513e1fc97ab868a3f3a4d7ea456ea86efba37d05","2e01d7c10f41c3797709df8871dc962d3668c89e14136faead6e7f7a5873a75b","1a9183663c61b3d372cd5c0321b9045060cfbe76ed781d1c32abbb591cf3adc5","13579fdb9d56d8442a0c35e7af287ee768a3bc66e523f04c481aa48c1496576c","98c3f208b24516248478a76edcc8c6c387429840ed8db55f2de5b32e97f949cd","91f3680538a85091e781dbb89568c2bc4963bd1dfd6875550a803979fd229668","3dce281ca0e614b1dda8d0ed670db8d11da28ca67738915db89014b853040875","d5b457cbd06c72c301c050bbc18735716496080f1e92d458625264f50eafefeb","3cd750b45485739a93e8e5963aebbe2dbf3f2cd6fcfd5ac889ea2792f103cfff","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…

Expected log hash

1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"Ich kann mir Premium nicht immer leisten","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 (f2dea3193623…), 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.