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 würde empfehlen, die Werbung zu reduzieren.”
Google Play · 5/5 · 2026-09-16

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): 70d089f5a31ac539956cdd5adc1c6eeb7c9e4cda8934f8393d88e43825ba9c67
Signature (Ed25519, base64): sJzgGVmLDTJynKaUCLdwB62mFOGCtdNXTNgu0zJTfm5F56F8WAU//4d4tnZkZC2GsAw6wJgi/wh3/YRD1zG1BA==
Merkle root: f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2
Merkle path: ["70d494e416014746fc1e3c94a49edd7db3c1f549b342173f43cc4c7d5573c2c7","33479ac54a516b4475fa66836eda2cf9b28884e66ffbd767e42c31daa51cd68e","d564954726a25d3fcec927e94aebf3204ff06be30054bbad24f68db528aa8a0b","fd28e6d6224ad2b52185e3177ede39e8c08f4fe84ee5d9743cb3639211aed7b6","f9a9335a534106fbfc69c2b7f2ced66651dc7f81c949229e2b1c06a3c46cc986","fa1c3f5e9bf6c03045395320c8e94562dcfd2ad4a116e77c687441e89eaacab0","171eb71a759a4ba000e332dfc75a7887518891e5e73527fcca0d92bbb99a2e4f","28512d356803acc2fe01b83697f112cdde106b3452689527f43bc3f6480c1894","e86a2ca829b85025c4f565ad1a1ea13f322bd70d44596a8463ea809c2a745e15","bac23125c894da112fbf113901ca80b24bf4b270c82060f9501f04f9c390f0a6","6b583c21dd7148e63cc2737ac6e984cab4dd092e875f4f57450ae5020b4f9215","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 würde empfehlen, die Werbung zu reduzieren.","rating":5,"review_date":"2026-09-16","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 (f2dea3193623…), 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.