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.

“es soll erstmal ein Test Abo auf einmal haben sie 69 € abgebucht”

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 2543025731

Proof data

Record hash (SHA-256)

856a356f5093087adef67fd2fcab6834508f13ae16b3addfc68cb0e98cf80e0f

Signature (Ed25519, base64)

stWbgLaIKk6khhulpH87kbrjeLTI3G2/2WD5S0Dp/0YPtXUu19Tdcbxx0HzUcYvOx5nN7i+RQkkkdHzSYjm+Bw==

Merkle root

172a3e0b3c9f8b02f52318e01ba6beb899404e00e91c15eebc4dea38467e1404

Merkle path

["85709fdb224723778eb728c5926eb9f7ca6777a9af2aa192ba54942f7a9eb4fc","59f81fc20be01afb8835bfc8af619b716ac7b899c87caef2534cf3c8da449602","7d1cf255655af2d7481b4baeeb7de24c088ac2db9bfec0e2532da7dc3b5c4712","196fe4676ed567f636eaf33ab46f34794edcb04aeb0f275e120ed54b81578414","bae6f59a601fa6689dff5da846e329da11c1eeabd6b77c2c47ee8b3aadcb7781","8d20ad931597188f4d6ac0be7a17911cd95e6a777f884d90d58ea3f2a151bc8d","db780aae085995c76ac9a14b0538b0d3362fc71c7d60d5467c4b7bca40c6d10f","5fd80d8197cbde61c0ea4b300b4f73f32e9df160fcc4a1d327f23831f392e0bd","53bd1bcf92408e1f27854a7be85cff21752ecd3d11fe168be1ecbf5df17956d2","946535eafac351e3ef3f46149d636e8c5d92df9ae44a1378c1341284ba880ef8","f390e3629980aa0ef086d9e906034bf3cdc552b08df994863107231c8e8c7210","d9da6aca4e4c21032b1962e1d2b00d61ed68d5ed8468ba2aedea414eed8a67a6","f12a899e5c92b32cfe903fadd591410ed4da016670fe0a40b993afb550e2e37a","cf4d3887edb33be9d7a9e64011338d9abc8444e06d1f5332550f7686a2c1727d","7731d0ded4f51d151ea3e84474d1e27a6279e8756420c93cf5fec0abf7f11add"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543025731 · entry 108e9186e8c5677a8971…

Expected log hash

19ecbe4a66d8adbd7c6057dbf6ed9be73485c248dba1e0c595279a908b3e8bea 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":"v1787283443958","kind":"published-quote","locale":"de","page":"theme:acrobat/billing/de","quote":"es soll erstmal ein Test Abo auf einmal haben sie 69 € abgebucht","rating":1,"review_date":"2026-06-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (172a3e0b3c9f…), 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.