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've noticed some bugs or features that seem to be bugs”

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 2904877428

Proof data

Record hash (SHA-256)

efd96fc571dc1262f03c7b2845f0130a940ad6d3b44b855c4ec920bdadef5f3b

Signature (Ed25519, base64)

WoRMlDm2AWMeLWHiZwRm7mxYBBk5QaUfOtYk6o0zdmvy1aTfW4ZzhKkWW4HydXo+ScLuJJw8cklMbs8X2MhJBw==

Merkle root

e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef

Merkle path

["efdec5c634f9f774ba2f69f0c895b6bdba076d82a06646719899919552c0a69c","9eba661f16c973b286849cd05804ede684985fd4473771002cba2f3083332dd9","f5cafba38efcd81f23a4c3ed1b6e14b5ee4f22f0b43dc0c101b5fcafa60d2809","91f2fef0c4c836c049b15564f2ac35f12d5c841f22693cd0d86dc4903866e3fc","ce5117e6404eaa8adafd9f39950e290a37be228aeab48179ee8fc123ae3e6967","17e35401a75e7e872894ce53b7e168b677d63f774ed24409ca2ff1f0abc4413a","5c94b94cae40ecc05e0dd0d4e9859b85a88231a7c7e6afa9af6338bac059f2ab","f7172ffffc863cbf149d22f365088f83384f48ba2755b794dea17fcf05776e2c","74ec11c72df9a5d648ca053faec40e5e2615571b6b2d87128537aa85890571d5","2f99031d1c290dff8d9f6c1f2e8f06da519449eb2614405d9c5ee1b450886c17","b331093f92df4d03f0bcccdb4c283a2d98779d6c363a06d0cd9c35338c6b7f1d","b382aebc31acbad71afb3ae06e4e6f9b354e9da57050f36d03bb1ef97dab503a","f95e3a68f572f5650a4093453e2bf28168547fa91a01ce08e539b3d7016a3f80","53a8a23597d45564e495678bf6125e41ef42f347693c924494330dab53ea1e2d","2a462314156907e42d6f0d96eed96123f1d79516aef73ed189d9f5466556b638"]

Anchored

2026-09-21

Public log entry

search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…

Expected log hash

d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"en","page":"theme:vaia/communication/en","quote":"I've noticed some bugs or features that seem to be bugs","rating":2,"review_date":"2025-08-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (e299bf38720a…), 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.