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.

“Wenn man nicht zahlt, ist der Service trotzdem exzellent.”

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)

a0a71e8183bc62f614cab38a08ffeb9ff12fdac348b0eebd04975efa16088cbb

Signature (Ed25519, base64)

basBuz4B0O3sHWPArjGDDrFA306/TMswCgPG5tkRLypVgDpQCFL4kZJAtZtgN5TwRqoXQxYVfY66pbQb8xtWDw==

Merkle root

9bf5e8bc71b8f6d2ce627972b9fb81fedd792f7b02f32eb60fb8da440673ef59

Merkle path

["a0a25cea917d83ca759ece667606263221acfd78c4ec58f55d883a9afe7f5972","56a9a051f87a8ba99142b8131bcd771807193eeb85413c53c77ec88f8879aa95","22c942d8cb87ab06ac41adc275f3bb66e9258b95adbe579516a1b1fbc7f4d9b2","4eb145392639e44a1aa9b94affdb7571bca56e488ecba73ab0ed10c8231cd01b","3b40f67fae3a96a41cf41b7c70db8639a00760a1313e95a3c0fa944518b22122","86a7c0b42aa03791c0c50081ea4671552edd3a30604b6d501249796d154052ad","85108103e41426ec7bae407bbc87145def46fcf202aef39ac2d69f4291d797ac","f9d4e740e74adcbee486ce24cd5ce193d7e0f4f820d019801f79850b38cb0cf2","9e17c7b3575537f18826848e4be8179f21b003cf6cfcedbb9df82499ad844072","820966efbf5b5fd2243a8240f84bcecb527685bf13a4c41b8a6c10098516a9ad","07da78a2ceb44d53e2ccdc8b4d4628def1146cac4b1b8712aa7dfff3e5813c61","bb3cc7d40a5a400ff842bd58bee12159fa7fcfa2da3c490fc1bf89e681560ba3","aa0e555b7739d6e04cbb925a0d34787576df4ae9ad90f53f6416ac2f935a93ac","e3d4f74560ebefc008080794ff80cf2bbc3851f4365eda6b2fbf79bf3ad31493","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":"Wenn man nicht zahlt, ist der Service trotzdem exzellent.","rating":5,"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 (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.