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.

“mit 12€-Abo, das sich in 2 Minuten einfach kündigen lässt”
Google Play · 5/5 · 2026-09-12

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 3163352270

Proof data

Record hash (SHA-256): 9dde30ff705d059610dae988b8dc401450aa12efd8b5bb864fbbb758a567ace1
Signature (Ed25519, base64): JDj0rlJGLfgOk5dwyykYKEhgTJSFXLz+nYiNsBvJjU+Y+h3DvyqXPVeVwf/X4hqFzSrEBUAtjNBL1XAYRNhhCQ==
Merkle root: 784ff8fc3c42eac43c7d399f0d67bba55d28073a7e106789ae0c6c3f5ac9dcc8
Merkle path: ["9de0395ada7a459b85001bb16a512e2703761dc4559366af897c0cee6c1b526a","2382ad914f2da6baab970bd8bdaf457214634c078bc4003cb0c496019026bf91","c76ce563f9d9b521dd930adb414f3e5ac3855126712b19b9fcebdec4ee4b7024","b6133d86b8affbf71879607a2edddbbbba5c251f4d0847f31662673eea0a7e4d","ec6252256cee5d94231b36baed99ee7b827c20654ca4da637b7eaa97b783d149","6d06f786ba9285c4d88f9afdb95e15ba05fba3598d48388a39a3c4178a951324","55109361f7aa2f8092e29365a8e672e41dc1067ea96c7defb689d785cc6ffb3e","d63eac7c9b8a50d5bd3d01e54b6d45ef160b139fe3c72aca51ffb6545cf708ba","07b1fdc154a8269e3b81636af1cfb05a9b809514d132022f518eb51e2e87de05","45cd0221affa6917bf9d1d8344cb8363cc34bf621616881a6ce2c68e23902bd2","41b07996483df33c570c054eead34069c94034c5e435d9ff8e701bb328f256a6","134cf62fa4457be90fad52ade3693090dc3bbf86989804f0dd255432e5eaf7ff","76d400188c58a939fb5674b0c9b84ba0bb8d5bb91a670efe6d7087f7cfcad90b","c0acf811319c30afcbe8b77293e97c6cc46544f39bfd9b01931c88a06aefa19f","5fa09e3847513934bffaf71960ac2a100e20422698698ab1e19a4fe8ac133514"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3163352270 · entry 108e9186e8c5677ad020…
Expected log hash: a3ae0badac804d14d314abd0e71726d06a96c43a3840dc1d63acded9268c461e 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":"v1791543790412","kind":"published-quote","locale":"de","page":"brand:spotify","quote":"mit 12€-Abo, das sich in 2 Minuten einfach kündigen lässt","rating":5,"review_date":"2026-09-12","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 (784ff8fc3c42…), 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.