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.

“which is one of the most basic features that a digital calendar requires to be more efficient”
Google Play · 1/5 · 2026-08-05

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 2582676349

Proof data

Record hash (SHA-256): 0900e77d80d15246735718f1ffbb751dc81e0b8085f896848e2cf261eff0690d
Signature (Ed25519, base64): tOxiP8GNYk0O3E7nLiHkFzLTkk30UeDG3L/nuoKUxuHIKkXxr95XJfSzo+6jT1OY3XLanLasNQUtw43qnQ73Cg==
Merkle root: 17ead47648ad229fc265a299c31080897702755719af6ea46a92bd0f863a72f5
Merkle path: ["08ff738390e467cc08a27f4ccc23aebcb8f50439bffc21295deea8d238edad8c","74473863a5ad8e158afabba10059077f140ab04e623de8e9b5b2b8e09884e0ce","54b247ee8bd37a5ffc5d2de061c8db4b3beacac6cd978231c62863018e693fa0","5afc66cee07db5a0c771abe90bca7d19b0697a474be2bcfd79709d611debffd6","be0cbf79e3b90d3c9d44bf54b8488d3e7b757dbbb976cb0816d8cb8fa2a243f0","c610c0a048fa5df243c587060f65966b6c59e931cf98a6e7925aadb6417d8465","a273426cd3b7b2df8abb2794eacc793c1c48ccba0e00d6b38fa8b581144021f4","ec6211a2e2d04161db5662f8367252ffe3330292da59d349e1386d96c3ca5b2c","565f5a1770986feb3da70518c742a3c1d6de093ed843e30c3a67b397ac1ed477","5ee7214c6bb739e76682023ac4eecb563d9c31ab7178ca19175f23123a73c297","e967156bf8f1053b44a93cc7bf3c2cfd6d745cef49a42ffcbbdd598e63b20e59","1cf59c983850e9ee5fd3d8daad0a014a5e2bd7bfd0c3362ddff5f9f819d1aa5a","336a8907cbcc3bea9194d40dd39c23663d5179127ea696df24cb3fdc58724658","61f86e7e32fb75a7c0d054f2c3716920afb9a96763fa26840e5df9515d9f0dbb","60dd9429d44a63e544ca9f093ed5983c0d1f3e76b5c5c255137e28b3e5a7042e"]
Anchored: 2026-08-25
Public log entry: search.sigstore.dev, log index 2582676349 · entry 108e9186e8c5677a0952…
Expected log hash: 698b150c88f0ec819e6f02a719a6b4a58821d2cb801810f732495f2566d7069b 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":"v1787631090886","kind":"published-quote","locale":"en","page":"product:proton/proton-calendar/en","quote":"which is one of the most basic features that a digital calendar requires to be more efficient","rating":1,"review_date":"2026-08-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.calendar","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 (17ead47648ad…), 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.