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 ist unmöglich, sich Hörproben anzuhören; man kann den Sprecher buchstäblich nicht testen.”
Apple App Store · 1/5 · 2026-08-03

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 2543266411

Proof data

Record hash (SHA-256): 787e0ad25982089f16684da2586cf38c683e31b6b9a3a134ea5ad5449830d1f1
Signature (Ed25519, base64): 2/Nqwy0muEzUb79ncC5ZIogcbwysDoAkO7jgvSbNlLwhDuNsoCoZlJ3/X/sm0G6a63TpkmZ2H9Yim72wiqAbDg==
Merkle root: 8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c
Merkle path: ["787f55d033888c610494d8e23e62dad18939757f6d801e5108fe7e6219f99580","0fbdeb8a3b3575b3b7399eca95c6299ce926a6e670fe8510bcaa9b5bf1db1a04","bbfb068368c428a7770bae5258bd4f46abdba827f235e3d53afadfbe99362c8f","ace508a0c18d3c280bf749904f7bfa06b4c8dc3f6e8c63f1ed23820bbfbf6fb2","244626b1b22c521ccef835b339b592bee09ffe59f0cbd2ad08d5e7c261b933dc","e7f03f66e32a586424984a1eb546311320cba368dcae5134ec7422ae97f3bdb4","e992869cb2cae85c79aca5c64adf1de03d18c2b4ace81ffb3569b008705f3bc7","2c028bdcf6ad6213a1d2bc16cd5aa010c0151907a076653d2c130419a6d47e51","6aec043d92504054eea6225bb51a790072e687388cb3620180dd8d22c10e096f","165c23421743b2a52a7abfb33b583f40cfc6a29059e0587fddffa39034012506","be65515e29ac0a1b8a601e30f76fd28458f3bbed9fde6bdfc6f4597d367be797","5631c7165c7faae49b48c9e456b6f8a0ba70f7562cacf5775869b3707b0246d0","f2e2a00cc4b5cbe26cca469c9d688a73117013587613411406abd1ce807fedcb","9d2fe576119ee6748db015f1bed3e423f559575b84b49b458e2b5fc136d5fdd9","e9f7ba9964da1314f660fb2f84a68d574ffe9983879b5b54001a09ca5cb5f33e"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…
Expected log hash: 443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"de","page":"theme:audible/fit/de","quote":"Es ist unmöglich, sich Hörproben anzuhören; man kann den Sprecher buchstäblich nicht testen.","rating":1,"review_date":"2026-08-03","source":"Apple App Store","source_url":"https://apps.apple.com/ca/app/id379693831?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 (8ffad6e97d14…), 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.