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!”
Google Play · 1/5 · 2026-08-08

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): 1ec788c900e31960ebcf69ca7c132dce1ef88cfb1b24dae7af158f6d28a08bdf
Signature (Ed25519, base64): WJaPL1zLrXevGYRlLfziAXzePQ2K9ZVl3KJqhUbiVLzvZjfriouYsCxk5Tcgum7+gYmLQvfsSfRwQxgBo2dfBQ==
Merkle root: 274a7762154bd166543ff3cdffd566852c7127b7d67c5c835965884725fa5b5a
Merkle path: ["1ecb750fd9069cb273f8b296f62dc2be93e06eef905a2c1dc5abb37f77f9de30","bd9bd11021a44e3fcc79dcdb275046bd37bf4a35d76e7b5a360cbd307b6b8b43","c5fc8c1c44f23a04b9939557a100c299dc2167548b2bb39ede782eea40149a20","9ef469012f401722c76bb57685c91f6993660e73678655a3e0b13febcc732d5d","a188b7cbeccd38727adeecf964ecf389f8ef7635f610250e69fd0c903fa7bd83","d6232723323bea5448a77cfe5fe44d136b0f545a24b25fcf62bb9214f38b06f4","8d3aa7573f03fc9c21f9f451b4b7113ca6943cb4c244cb18443d3a745f654dad","cb7870b749b2713a3665b38a349f6904696cd3710de9bac4e86f15cd5295eeca","57e05955c585adbfa7deaf46814d7b282bccee33ec92055132a6d2b1eb2b1b80","642b925d3ccd67580fa459596bd58726478ac3abb40a1d3721254bc9856b8ffe","f4790315b45ac3d162447d1e34229640be176d595829cbcd3965f0a5a25ce744","a23f8c34fe7234d1604529397f0f25595125771d2c3bf2e0ea04339b7ae798ca","37e0bacf6aea102741ccf02dcd42b0de6a02c60397ad417aaaf9cff69daaf006","29e5b66d9f235b4df92caf0fbc75cded7863ab76bbe1924bd45c3ed8fea27123"]
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":"en","page":"brand:casio","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

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.