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.

“Great and simple to use.”
Google Play · 5/5 · 2026-08-12

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): 15c5e22d592059006f7a30c597e5885422e5299da6c13d5f6e3437cfe4ebbdb1
Signature (Ed25519, base64): nZsdcqAPtVB4ghmzDHywVt/MaEnQoe6hPWmiEwAZCGPrvv+JVkAEi7jyUU5MDOFLqHzM/rt2dkIpMK50zxgFAA==
Merkle root: ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78
Merkle path: ["15c736596ddec4364bb02e8ef60611c7a280d50b33349ca1dfc46506aeb9be68","2e51fa464bdede02f1751383c191ee4a2c9213681b53826b24df7b290c0bf72e","99ee4d6ec08f11a4b84e12c347e546d9131523e92cd8ed418d0c907db2c38484","2a38b8990f2b8bf616dc06a56861132ed0b353ebf46f982f33409e7850d565b1","59d4fc5cead437068e9539aae4dc9aa32f2f2bbd70129c66c3299214346d1481","ca16a1f07d8efac0d8fbea0e366a751d61c4d0f5ed3fa86f1bfbed946437b76a","595511748380714aefa4479b038a997dc8d3d2a05e31f24e0b97d3d1ef2b3fc1","5c541cf587d862421aaacea4ed0289c0b425ae0aeb5092ce07524c1b4a555ebd","6d5d7325498f272a49ca06823133bdb423d2a16f929d1c7040a93a66c6824fdf","cf496d04bbbfd6727e92d40c5b1fa0c9043f26e438eda377c1ac99c6f2071e35","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":"en","page":"brand:acrobat","quote":"Great and simple to use.","rating":5,"review_date":"2026-08-12","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.