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 wüsste gerne was ich vor BookBeat gemacht habe”

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 2515033577

Proof data

Record hash (SHA-256)

eccaa564603ece2a69d5ddd38b507b35adf021133b28d9db73e25ac8e9764f9c

Signature (Ed25519, base64)

Ubdlb8RO4GIhxQ/bCbTs3hdmIZ6Og/+HAbUMTP0ZdaJZCbmKiJtaXQezjFLfdvG6OEd4K54RoL/J/fJbQ07nCg==

Merkle root

62390602d5b1801b2c96dd61074fd5810278db65461e368ee19c9bb147d249dc

Merkle path

["eccc88262950e055237e0a197c26abad4c6b5861d7746b9e7ae4ad366a850e8e","fdbe0e79ecd987da9e767a61a1bd57928cb10161217e2f8e2ceef27bbad6aa08","2f196085ff8efb65a84452078b476558db0f1158afb089da7cb5e2fc23637759","4a103328d2915a09ba1d39a260feddbb0ac1cf5a513e4ed3ceafb049f79c0218","b63fb26075152c74809f1a057dcb4889cd7a3e68103387624ae2237b75287a64","e50ad2fe1af65bb85230c136ada56fca53c72c3f8093648198634a9d68021e42","ad0d33b6ed241b1eb1a3ba2dfc8bd0fc7993aaf8df4b81a07304d2d232397c3c","c17c62b2542ce447529120f07238c98a95fe442b29568c54c052350ab6efae67","66a14908a957c8196fdb646cc19c07cf7281f22f66c81a2927c34248817d0aee","67e849533b05dd03d3cf504d382bc82ef723516f3c35a239a383565215308ece","1b04545f3c202b025cec838fa73d2a17cb98e80ccaf12f3f519d12c437a8a5fe","377139030ce6dee03810e7f38bfae3d3df36862441f5f2621ca6d22dd21ba0f7","17e33114dc02b67ed59a752ab775223f702cdee87d0b28082386d0d64e98d9fd"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515033577 · entry 108e9186e8c5677aaea6…

Expected log hash

458ac564101d02a2c8a5f98465ce4e920300682f0855e017234ab870c48a16cf 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":"v1787135948936","kind":"published-quote","locale":"de","page":"brand:bookbeat","quote":"Ich wüsste gerne was ich vor BookBeat gemacht habe","rating":5,"review_date":"2026-06-10","source":"Apple App Store","source_url":"https://apps.apple.com/at/app/id1056652614?see-all=reviews","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 (62390602d5b1…), 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.