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.

“seit der neuen Version die Synchronisierung der Kontakte ziemlich chaotisch ist”
Google Play · 2/5 · 2026-08-09

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 3258071454

Proof data

Record hash (SHA-256): 199b9097b28d86cc4778ce5d80fec6e7549bc41f3a051fc835e07a1348c3e81d
Signature (Ed25519, base64): OAAooGkz/lQmUJPX4kluUaU5vXvvh7wKsQuFFZQGWfifCIkV7L61lSVlCni3n8Y5ZG9EkL+HohzQy6fjy+puAA==
Merkle root: 3286418fc06d25de584969d1d1d5f4b079918bf6b5a5178364cae8b78bb351b2
Merkle path: ["19981dc2f8c7c5bc0244e53860d1fdd347d0777c2ef8b22da0d4bcfceb2bec86","4c318f0821a9b5485c8dc2a6d7d4c729fe4b239df9a25e9eaa52449f166d9de6","33d3bb50155eecfc9396a7cdda2663f875cc7328c8ffa1cb48f073c884837f71","531be0f080027db3cc702e78c85e66b2eac5381e29588fd8ab85fdff53ce5b26","4596256575a72023c4b59e524621596b86f8014ae3d6deadf15da75254efb863","28fdcfa5afcecadc80400a9aaf71363bdc866ac87bfb61e92b2f739848cdc721","6bb78518e9406f37e044fa33053ed01afab6215e27d5fb5bfabd7c0a153e2db1","009ab395621c49eeed73c7120211c80a4ac4f7ebc2448102d1b0e2f82e142b3e","04bacb9493906c7806c0153a4e8e914f4928bb7173d83ebddbe6e752b4518471","d604c90513eb44b132511e8136d1a40d3d0e20cf1ac8827a375f14753e345e92","1d1100be7a34c450ffa8104880455cbdab68faab3fcf0b9a1902eeaa174e1fc3","49e05cfef927266c6a609e22c205c5fdf538ab222e94c5e3282700418f88dfb5","d9800b1b87d047478eeb89f8a1dda19593d3b273c40fa6d591a1b944763f5e83","b4d8773b8032d1dec9dc6fa4ba1d52baf4d9efac6a7cb542ab0617b855dc5284"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258071454 · entry 108e9186e8c5677ae2ee…
Expected log hash: f9026b3bdc4a2e986a01140b2370b0ce9ec3e7c9353055dd7c9909c6a9941809 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":"v1792030101458","kind":"published-quote","locale":"de","page":"brand:threema","quote":"seit der neuen Version die Synchronisierung der Kontakte ziemlich chaotisch ist","rating":2,"review_date":"2026-08-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","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 (3286418fc06d…), 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.