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.

“The GPRH1000 O2 sensor, Nightly Recharge option & solar charger on the watch DO NOT FUNCTION!”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
1447fc088df01d3c1ce1b6dc40b2d84702cdc0e1800a37892eea9e583325a635
Signature (Ed25519, base64)
UKqUK/mgrcGG9h4qMbgcIt1S0AjWgAqusPhi0HAl3/rHbEnEJ7o+ZqAgmxzsmcRjL2tKqWzpfrnftuCHYWYABA==
Merkle root
197f899fafda406e0c9d0591eaf3664c281655082dfd19c34045187b374127b6
Merkle path
["1446e36e95b199d969c35cbf5be92a87027e1992d366c5783da12a9299299bea","91a1ff692763d4a9903344cf6cf9513744e874d6965da77ca91d41ec011aa4ac","23b0db9c37550288cf8a7e6f5617b2a89ddb973ed62dfd524d555adaf79b3ad3","ccc934fd465011b47acc98bcde844f9966ab36a965b44998f7e2b9eac1872475","aeba20c312c04aced686a2e5701d10bd9df0f6c50e30cfb1bac9531c9f7b9f7e","41297e9b3bd6f4ec76ae87721d5ad51b843a28e02c766d7fb97e7263bb025eb2","65806cf68a4af34788e24649516f9c36297f78b6ae94e2c42dbd84cbd0b5f040","c42806c1709c34f8fc1d24219870c9ec14d034e3d8280099264a2666412a788d","00c2c2bf30528c8622b59e14a295e6c5ab28bc71294109f6d994558ea66e0cca","69d587faff01f99adc480b247773d7439593b79cb199a8f07558c65fcf7c6981","b5571d3aa598932897806e02f48e0016701c260085a00c41938774111e0f3fbc","df8a7c6e5cde16b4c4ab3a58a64fe01086f546e7d0c17890ee9b3ae44a54c23d","474f5e3eb7f54ece02b72e34f56037226b5d12684c5849615376a356c03ed7fc","043ba08436a7a593c366180e52159485eebe8c0b0baf9b9c62f4c2c637b226b7","7b5d4c2155ce4f6908bf1c61cdd8b51ce48d7dc7c5d7f3bd9a7ce68fedb43f21"]
Anchored
2026-08-19
Public log entry
search.sigstore.dev, log index 2514383033 · entry 108e9186e8c5677a6078…
Expected log hash
4e5cbdb3dc34f3dbd6a57b603e905df6c94968b41f5bd83d5c9a25f2ea060d8e 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":"v1787127398505","kind":"published-quote","locale":"en","page":"theme:casio/quality/en","quote":"The GPRH1000 O2 sensor, Nightly Recharge option & solar charger on the watch DO NOT FUNCTION!","rating":1,"review_date":"2026-08-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.casio.wac_app","v":1}

Verify in the public log

  1. Open the Rekor entry (pre-filled with this proof's log index).
  2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (197f899fafda…), which ties this proof's root to the log entry.
  3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
  4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
  5. 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.