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.

“die Benachrichtigungen sendet”

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)

f394cbc34db83ec0df1bcb552a553c4fc6cd984537943da95bc7bc4327a313ce

Signature (Ed25519, base64)

tPdtz9laFmmF55+FS3vofhyP6RQxZeqab46eE3f0PWVfd3f/U5T7csqTGBv8JuIHg0XX45iLqX4cVp8muykcDg==

Merkle root

e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef

Merkle path

["f391d74daccfd0c4454ff17ec2a57ed0a52b453503f5bff0f066870c1a845ef3","3a19e7fedb5ce1e17e459f525dbebdf0211aa12ff6d1afb859933095de8630d4","92f016dad719614152762dc5b8ae2323e6d9eaf317099bea354080fc63394359","1d258864c8f126146d3be203433209bef7ae1ca0baf1d135b960c59d2c6a92b6","7f4bdb5cd85b04925db3331e57836ce3f406b54e16f5fc8805366b15066e4c8f","1a80a3869f6787f95760eb1488cbd96d1acae63cc4aa249bc310eca6f1331f17","10c71296a3f2a3b254bec2cf3c279b842bef67a2554c12bc35e948be2cd5f66e","81831ce7f23940ee9fdca9bc4a30f58a64d7184f4dae81dd80ea564480808ce9","25a9482748de98ced7bfd2a6a0881de5b6d3236775dc1b18e81ae5274cd20d96","715b178d1c714016557207318fc78c34ef829dc799125ac93653f7df74e3640d","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":"de","page":"theme:vaia/communication/de","quote":"die Benachrichtigungen sendet","rating":5,"review_date":"2025-04-03","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.