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.

“Die App tut exakt das, was sie soll”
Google Play · 5/5 · 2026-07-31

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 3162293789

Proof data

Record hash (SHA-256): 04d2cdb886f4b500eb1e157c14609683b9faef6385c3819e51eda60da10c1e24
Signature (Ed25519, base64): Qc8eoyDJExeIX1TnwN1IdMZLgmEXdUdQ3ats3mOxuwen6t6Q2Vwh96L8nOeFD1Y6HmmZrASySkbzLvqSoJ8gBA==
Merkle root: ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78
Merkle path: ["04da783bb14fba6afedcbd96bc316717ae46c18dd3ce43abde4b0d5bd42ee07b","635d6152fcd359bb28c3710c3b78ddb81bae8f3186b4d34352f4a6a80d47aa75","2ebbd63587c01a8e369a49662fd39e2e0bfcf193b06871fba257cb119b9eca6f","c0383dddd63d8e80a90a11b68ee698feb7e5bdb982aa1902fce3567dd1c27372","85ed63147b661772455ec945d00e569386c8469bf9742ae12315d5c7738b3884","c3f834f4430850312fc245e44c4a41ed0d67964ed747afa825acaace54c7461e","604a275367ab1e4fb72312004a239c1046c317128faa78ad9086faa489b318b7","0e9f1cf18a4737ea72b391020d04395b8e649be03ab848305663f1ad264c9f8f","5e66512b85044e4c3e25864b6209a01eaf880640f286ae865c06da5be1537f61","6d303fd2ce764d2cfa52a4b80a7f7f88c24b3cf95da10a1c14bc5a33ae2235c1","c05c95777d267c19c11a7321f727d98146b8abc20dc2b7086dcbe43b27c7245e","cc82dcedf1803fb9cd4fbf2969503996cb7816723bd49062350004454130bee0","b5d1a48b6642f5e918335ff168c322a90c6461c94c3bda6ded76ea663842f62f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…
Expected log hash: 49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"de","page":"brand:storytel","quote":"Die App tut exakt das, was sie soll","rating":5,"review_date":"2026-07-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=grit.storytel.app","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 (ab8d4de5853e…), 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.