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.

“Recently, German is no longer selectable as an app language.”
Google Play · 2/5 · 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 2913636507

Proof data

Record hash (SHA-256): 3dac09289561c13e9f3ab64981b082d1bfd2ffca5db6153d7e650727848491d9
Signature (Ed25519, base64): slyL1+/mD6pBbXOqm3hKYIkABHOU7BaMI4rCoclMQoKWESPnH15nG4CNx7jNmoDnL3zEx5fghMnQQGz6xmPRBQ==
Merkle root: f26292e960b34f73f9768b4afc64585e265549d794b35b8167826c2bcda92ef5
Merkle path: ["3dadccdbd26ae225283bf0857dc9725d1b66e0e99feb96bf53b3346cb37a1075","ab0b7339004a8ada01661a5a97413c9ec1b2cadf5be764b8d66a2da34d2fea81","cdce19425bd7b9021b9e9ebd2132a5f7a2ef9b1966dcbe7ecc46c1493d14d4a5","f05e6f6afa573ec2985b6c4ea444cf0125ff9436cf7ed647a6d86f11a134147f","d90da5109ec5f5a8e62193d910f1b2a4ab1177e1b92acb18ea0f3e7330bf25a5","2f06dd1b70bb123ebc43b66273668132179cc1cfc2d092bff220eb0c542758e5","8a512323bbd55e73a65dea9e194499ba48f9e1f3dd3a7d75330e64dbd62b626a","40445e7d461f07aef6178c60115dd1a82a7d2467a01e46a0a8b240c5f561b74e","2778d48fc81c44a120519ddc90ea74db247a049023e59d9dcd256d711f52b50f","9d749a55bee812ec4dcdbdd4488dc105791515b23f1f430cdbfe0ae369a2c3a2","9897a060bbed2271e97bb8eb861687536edd8ddd161a2cf4e8b399530e445ff6","00a58474486d38878667c018eb810e71180b9858df79c82d171ce5b4f5fcd15f","5ef2d0b70398ea508e6c490819b91bf39069023f910bbf3a50f0ba400757578e","0cf751b4d000491c43eea40a33568458d763987b542601ca0644e491c0b04ce6","e95e880a53b013b49906f2e6b9dcc652726333d77986f48029bb634dc427e2de"]
Anchored: 2026-09-23
Public log entry: search.sigstore.dev, log index 2913636507 · entry 108e9186e8c5677aea51…
Expected log hash: 417fac9b806377ff48d30ded01faf8424eb98406df713fe2564ee9077747e6a6 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":"v1790070376053","kind":"published-quote","locale":"en","page":"theme:everand/communication/en","quote":"Recently, German is no longer selectable as an app language.","rating":2,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (f26292e960b3…), 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.