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 have to do it from other devices”

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 3178600936

Proof data

Record hash (SHA-256)

ed61e08f068935c2160e3b9c78777aaeab3d314b71c5eb2229466f0cb3a01f86

Signature (Ed25519, base64)

cuyjryWJSnM2KSUqweKhK1xFG/3FHEiazlJp1zGqh7at4964vDsoJsf62oHIcWlAK51BJH3p83beLCTnJr0eCQ==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["ed6581217f6cab985acaeda3c0026818549c73bb0ec06e9ce71dee297ef9a991","795ee721bc165123051a0c50597dff7505d77eb5fb427964721d597d6470dc2c","4bc35f0b977901bd9ea653649851c2201d83e123c7239b239e80f8417efa4d9c","975f8786c6cae40e4b1d4377eee73bb81d4a4b822f2f67946a33e78aa32ac886","4d37d77ed98fa6eea0922c86880ea74fcaffa76088941e6cddb374f5b897096c","3decb5ce7d7ff915cdc8455bb597c02e17568d00761c940c4440fd72bb6f96c6","986aff1a56e71f956714685e57c12ac4742f84f61bead7369686132f34c21ee3","51aed4003b8a4d2680b31aaa2b73efc600231a998adb2b71ebb55bf90cd0f3d3","283be85db8e64c94ffb151ab100195f7eca7bea0c580dc19656b409e9cd394cf","d5d913c7e49f2cf2fdd1cfd733de44d70fbbcb8ab11047db3f7a08ba33e1b96f","cea196a0456aaae014c4f370d5e890d1176ed384e370889521acc227f8bec42d","66c0144df3633ad66c2f179ebef927e19b0535a6e6b53bf383335be6325b032c","d7feb064a92044c8859079140f59232505ed2b3b8917786204b22dedaf037269","f5776b4aea049b369136550a2eba5c5f94aeaa8e5ccb2b2ad336fc6ccf74ea7d","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…

Expected log hash

f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"I have to do it from other devices","rating":1,"review_date":"2026-07-30","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 (eee462924587…), 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.