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.

“Das Abonnement dafür ist ehrlich gesagt Wucher und eine schreckliche geschäftliche Entscheidung.”
Apple App Store · 1/5 · 2026-04-28

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 2907673729

Proof data

Record hash (SHA-256): 982df31b914c73650099ef05853e75075d28669c1760ce4577d1ba64fe038fd7
Signature (Ed25519, base64): GOikx9AwCE6X7amzaTBFcceYw5farbFmiG/O4QZaeGHn3j8UXfKkXHMuB59P/SPdF3U+WBhneJU1kLftq2QkCA==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["98302a50b6dbd9fe345b25acd0736e14cc4b2f09902f0042aefade5d0534221b","d9c2edda393508530200b794686fc6208169337989be57ca749bde33b47547b5","6f540d496c7288b14bd210096ce8399abf1f913b12c073231d69c2ff42c4e57a","6588ed7b46725d493ce50b4f343088e27b0380d3eacaa56e528a4078fe20d30f","1148027b944b3c3d964cadce1d6dc7d8ea088879104e373937b8667dcc1fe2b5","1ea444d3c3e29b0bddda9e8b89033166b72abccd1fe1c0c2d90dbe9dca9d0e24","d09244014da9fde5b819dd3f24efa17c488a0d5d8d92e20469747af5c10c8f53","bbbd071573f9c2ae94b32fbc8591b98a6abbbbb432a614af11f735c8ed21cbe9","cbd18b0ddbbf026b8eff929835930bd12ec2183df6e50ece218d62236ef5988e","b02987b8805ff97881bf8bd02156f427a4bf028280e5bc4b4f89b2e8d8e3f784","bf77cba02c08849fc4a9dd414e0e15c17e1f6b56a0b9c25793199682cc31bfad","86f8c9575acc759d5eac58ad776858ebdacefb73351960cc2bdae6ffdcc2483e","e73087a4c89fcbfd62483a37ad723e600377233e603592ed8ad92c5db69f30f2","05978e8b9ad5fd39833c65b8b951e8c80cf426334c441fa8a8bff8eb8eeaf534","4543e8b9ac7bd077d9526acfdae449f0a0d5517cbb42414f50ef930ecdb9470b"]
Anchored: 2026-09-22
Public log entry: search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…
Expected log hash: bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"de","page":"brand:anton-paar","quote":"Das Abonnement dafür ist ehrlich gesagt Wucher und eine schreckliche geschäftliche Entscheidung.","rating":1,"review_date":"2026-04-28","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1521627812?see-all=reviews","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 (b9a08f9d6d76…), 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.