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.

“Unfortunately, it's not easy to reach anyone by phone.”
Google Play · 4/5 · 2026-07-19

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 3162173160

Proof data

Record hash (SHA-256): 571078eae3898dac2389d8246813ec80c463a8078a61b6bef183c755e0b4d9ef
Signature (Ed25519, base64): 0H+zARr9Uqe0IAc5BWs+VLA8OK8YgafG23rig1avmVr3UNAssctHxxuRTpSPctYnAkgm5VlBTMwcaiENyCaKAA==
Merkle root: 47aef0bbc5d347d2f064428fd7eda9e99f7cea2d49004267bc87db0e45c42023
Merkle path: ["570fa95ce373ec469c180f4059836e1b9cbf88cbda26b01e96acfab3d96a6ab4","303ec9accb446f3df66f635c28e3b350847d94380864209bb11e264b3a0e8770","ea54652b74ffa2db3527f1d7146f4072961bbee9be5efa33493c1137af9cbdd1","69b23cdfc142f721b2c93be9e3ea47ba2d5c2cfd66652d0be9b99cdec1c4eda8","bb514f15bcbafa50a3f6c9323373ea2869e8acd3bc349a334334a6175da166f9","2b296ae00fbbb9ec39df17a1fbbfabc04dd020e67a704e75f5e8dc9925be5b8b","58d43716e125a12dbce52b183a6e5529205ce3bc32f63f5043920475dec6a990","b2fedfce0abb3816f890b9093e01e5ad97d39dc0bbd5a1e4529fdc26077a7d33","29d7836e923e8a1e38dc9102ad19e97fcf6b9530d60156aaaf7d1300ecbea56d","c9dd4e6dc7af254ee6d4c6c037d8472d9e3d5194051962eee707a5a2f2c4f824","5ba22509bdce270ee0434c9b80dd7b39451f89f309e5d27bf74b76d6543bb469","fc59a99ecd8e45f7a4edce8bb3645315ffa61f5b16e71389405bf26368007a16","b965f789d81d31108e28cb7456c86198eef687ef99496f7aa54fa323ddf26edb","0889ae3150c7685b34e529b715a23984c1ad15ae15f158815b083df85c4c26d0","681b858a978b3dea64df3700a937a058d6290a8e519185bef8ee7388d7739dda"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162173160 · entry 108e9186e8c5677aaa5c…
Expected log hash: 00d82a97e8d5da8f3bb4a78d598390d6b030eb8338f0e0735ffde6aa5047ae68 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":"v1791539060014","kind":"published-quote","locale":"en","page":"theme:zasta/communication/en","quote":"Unfortunately, it's not easy to reach anyone by phone.","rating":4,"review_date":"2026-07-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.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 (47aef0bbc5d3…), 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.