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 Hilfe kam schnell”
Google Play · 5/5 · 2026-03-03

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 3162293789

Proof data

Record hash (SHA-256): 0fa87affe2ccfbc2632ab58489916cb6ac4953590b7b98380502170554b5125c
Signature (Ed25519, base64): rl8jpEZIuxjWgUbjidvxwqUw7DrDQgSjV3FTD902JSGyt3l8A62BnMtKJDqvMfhgGdObk+JQ1z+4X+lxea7fCw==
Merkle root: ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78
Merkle path: ["0fa5d9dda7979345a72b97fc8b74f41554e6cb70e10a68faa888a5b0a37d7f92","372544b7407601eba2d368b57541b0b1fb7ee7c3cde3c4b0580cc6d4756488cd","a528986c03a66af911564366ed239b3490dcfdbb4f4b783486e903b9531fb6ed","f0a63e620354e04962cd888c55d6cf02f72458ba2da9c3b30b36c92eb694bd0c","4b15dad12c359de0a1cd311909c423ff485ec81a2dcc965ed476d61e435ab5e6","4f714ee7d4b75ba5ef62cba94cc4674527869390677b67639960ab3efa9f9ff9","e24ecf288231c1c0127a9e671a8c1e8a32b2c81c4098d9eb094df1005df6adae","b0132fbbe785d9787cace581cd699e75d5cd43a4023c2c383be87c78e7a8e629","617ef9342dd5c24a6ebf823bad5a23e2b170731568827f389e16dc29dc5f9427","1290a617dd1ad1fbbc6c37216cdaa6d732d98b8bf33a3692b8f74ff841dcc026","d1c8ff8c8bff6e1437d1d0b99928fbdfbaa656a852f36b4fef47a399f2e983af","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:acrobat","quote":"die Hilfe kam schnell","rating":5,"review_date":"2026-03-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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.