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.

“I tried logging in 6 times, but unfortunately, it didn't work.”
Google Play · 4/5 · 2026-06-23

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 2907673729

Proof data

Record hash (SHA-256): 869525d7f212e9036ce550fafa543ab4c097ef11d5c3a5fdb1e5e4672c0fad8d
Signature (Ed25519, base64): 2iI2lRHoWvhoGl6xLL9PEtpEv8adofcBFM3+91z4zGz08kEu9M6Q53uAeVwz/S4j3hV7BK0o4UTwdk6ymQ79AA==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["86877fa3ca413c1b191df3d494424c6eac5791098ac250f88594fd3b7361360f","f49bb28a498a0684cf3964fb59f8438df10156dd7123c173e7ff2b0114efcdea","c2f15b9db50582364a9f0f8184d3c3ef5dd038231a409264a020931571622c84","7f3a240ba78a17cadf626d419457416cc32d0d6f925691293f99711311473f4b","b813cd61f2d63d0f18c1def370bd0a726064899c376ecf302f8c01f2f1999125","3d98356c1263a84e2fecb72ff8515d61caedc07bada8ad39a495ab64be60b454","d03eae7d3d638269c6c41c75d96301e358fc6b8c091ac86d808b8a248a210cda","922ab5593717e8196583b656dfc79d7e9cedbbfc373c95d6decc3a5db43b2623","7985c5136f7da1486e54eeffaa029024f4b18c5f8208037b3debb56b45931657","66c4ff1af10ac2b2e59d66ab919507c0e96270c6866d38265ede99ef983b9819","b12c24ca7cc480dac10d3c9e7ddd80a781d96f3b29af3e073b54d3ea0a23098b","d89f5af62fa7d0c6d0a9fe42e9680d2e7af53ca738a716457a3405d68b60cdb4","8b252735b283ab7584d9f6925f08ed38c911c64db001463eafabe5061cb6f9fe","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]
Anchored: 2026-09-22
Public log entry: search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…
Expected log hash: bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"en","page":"theme:vaia/durability/en","quote":"I tried logging in 6 times, but unfortunately, it didn't work.","rating":4,"review_date":"2026-06-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (b9a08f9d6d76…), 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.