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.

“it is really helpful and give understandable explanation of concepts”
Google Play · 5/5 · 2026-10-06

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): 93644ee9c7af30b1883c013db5f3f143bfad2d2cf7ce86e6286fa8aa49e82457
Signature (Ed25519, base64): /BxqZ0NzqXKlASZX/CnJPdq3ouTwYusDdIm5lb2JPSNvSDXh41fvPvVMR+V4bElJYmFWkAPuGDKDc+mUnBNGBQ==
Merkle root: eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6
Merkle path: ["93644cdf3c6e5964b0bd89260c235441236f095171b08aa5d09b9841ca4066f6","723a0d06a77ceb7d2f9aa887b73e8ae36aaecb3283b56edb8ead225348349f6d","026d26f109e93055223e43caad178b3f9cb57229a523441fdc7839f6ad79a021","0badbae2c82bba229a673e66a69383cf9880a09c92966bac6cb538450baba700","4aa0856d3dfad040dba5fcddf0dda8ebf7798c2d8d37f29337d495788e273e93","39fe558bd579494b21fa54d09a52d4d4eb1846a685120a5e31738135663c94ef","449853914dff443dab5658bfe5c4510504563680ba32f333218e372d6972eb3d","f4d27e8a84ac58c9e24d3370054f48e54876f5bf8aa295139b418a96368cf9c8","c20a78e012563c83e77dac4974735ebf76e1268cc843a627dc55e087dbbc3866","690eea70c4713cf13a2f389fdb4fed987ffc650c8843028a93814bc65421235e","35ca37c75727a510daedc47db8b680270c0bcf01dbc7b562eb73f2b4a35aeb92","03109236374994d37cb03d835f824eb739eb2a726edd95454da9d25cea9f6c11","7461bc2d06b1d6bef7145de580cb46d87ddc9fa66e098a96698a96372c033f50","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":"it is really helpful and give understandable explanation of concepts","rating":5,"review_date":"2026-10-06","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 (eee462924587…), 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.