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 finde es nicht gut, dass einige Hörbücher jetzt etwas kosten”

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 2514541190

Proof data

Record hash (SHA-256)

7ab0d103968bff98e878fd4a8b1b844f7b33229f23612e870726f6f5d8bbd35b

Signature (Ed25519, base64)

ut5T+T/tZqzGF6iNW8E3nkXLFOptj3YjR41pM60XXYrFVKiR15zGOMpzATz0jgLff2ZEz+Z+y3LhNYPRLXwvBg==

Merkle root

6ddadcc7cc1bb0679f63a30d8a28a2a72e039950945f2d7276487dd5b703ff7b

Merkle path

["7ab0c8d57db0a72ed0d44e3890a440324c64e91fd39fc8ac0f42e93d0c2d20c2","24cc4709c92d4980e58bf002afc95edc5b4a88379151d2c087836638c5b775e3","825eb400cc05538201033d0283e90cc5092a64e3bf1ccb1348ab323fd46e9cae","bb2f48717c37fee7ebb71e60a7768a66fa237f625d28fb9b8c5a72e18ad7f0f2","e1f0ef029cc42ed0287acfd60821ffca5e7784c8bebc1f5fc9d72c17dceac1d1","b77afed2df192b74a248a9dab3d8f3d74f3bc2a8199bf1c2f4f85914beb3a4ff","5a6393f0a236be9436e11fabcf807afe6eb9f3189426afb5a08b986111aabcda","2f26e3d38a3427edb3bb9d278a800e73dad572d966f8ad15eb01ea86ba7a05c6","bc1f7bca6424e2832ddb57960f8136dcd592d71be06e9da1ded5d1895d3f9ea6","4502bd673b00a3bc3128f3d1208538c7cc0345a665c307e62a3e17fc8a71cee5","370364e3761de1ec486cc60da65dcb213c3af007de73c704b9220230b1a25635","3ebdb721abd6554f0ac4f4d452f2d68ec951cbd72e53577866aab1da4b0638cb","b7880ec0b6ca5b49f70739afc9c55901cfda1f2917f3bec65d879f03db700592","6c80934204cf6e9e7c67e4289ed571ca8ef594df18a56fa355d65497266fba72","052ac7d24dfc9659210f2718e5c7e6b2477f3dc364546bd6ed2bd5df9d14d7b0"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514541190 · entry 108e9186e8c5677acb65…

Expected log hash

adca5adcd6d3235cf084bc9b408d3e4d7742d07347957346ff2629f37429bf20 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":"v1787130614827","kind":"published-quote","locale":"de","page":"theme:storytel/price/de","quote":"Ich finde es nicht gut, dass einige Hörbücher jetzt etwas kosten","rating":5,"review_date":"2026-07-01","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id348177651?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 (6ddadcc7cc1b…), 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.