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.

“Funktioniert wunderbar”
Google Play · 5/5 · 2025-01-26

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 3240911465

Proof data

Record hash (SHA-256): ad3e90fe655e4757de8cc1940fed8da1fef30ab090faeb4c47df91bc0eddde73
Signature (Ed25519, base64): oQ9rxnC3NoKEAo9q786zJMmewhVkY4EaIDJz0KDUHTe1Nq9QlGQwRDsvVhx13JkJ7IjJl0eUY1iYFBWOA7A2AA==
Merkle root: 274a7762154bd166543ff3cdffd566852c7127b7d67c5c835965884725fa5b5a
Merkle path: ["ad3d5bb06f831200e224e86ddb7c84422c252028a38db3f654a34cc5c77dfbd2","e11447598888bb0d75993072baa3884a4663dfe099a972d4c61291f1fe5ceb04","f6f4d6383d34199df737499f11117582f6f8f8424da0b6430b3dc4938feb618b","7d025461d2d99b5aeb22ab1c85663e1283409f9d29421c70886ecefa9a6dc8b9","b90a3573e338dcc994053692ae4ab635d487cc6e8041e528a30093bd663cc638","497e3e0d097bb10db0480162032cd6ff339dda517e2543522b2a77f53d433c96","00f8a794be7fc48344ece0eeaa5010fe58f1702fbd47eaf58b604239bb9cff12","59a9316aef2f36853c9d09363f02a2ed764036e692b9b6eb07f2f5bcc0f553f5","2218e97dafaaa1596d005148db80e45cf3bb072e401991597b887f7949c936d8","15adcd2f7d8dff6e04ca83d8559144ab602c3ec99828835f935e81aed6004c33","d5f6b2929474f095719e445d0e06a83b43c3e8f47416c7678b8c094ca8f7f540","1fc19f08809c1743a213ab05718824207d67dd1c252dd2b56c5bafc417628f9e","e4e63e0fa47436d6be3a76f931b171e7dd25027bfed40416d8eceaf29dfcee70"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240911465 · entry 108e9186e8c5677a3a8f…
Expected log hash: 75e63ac56a22d308ee68ec8d436777d2fa26c934f80384e53bcc94d01475e988 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":"v1791863907329","kind":"published-quote","locale":"de","page":"brand:anton-paar","quote":"Funktioniert wunderbar","rating":5,"review_date":"2025-01-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.antonpaar.homebrew","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 (274a7762154b…), 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.