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.

“When I wanted to upload a file, it also took a really long time”

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)

d4bdfd950ef60c9e41565905b8039684f4a66af8e57cba3c1d9538cebbbdb2b8

Signature (Ed25519, base64)

nhGS2o2iHlGo0MMXrOEPq665OkWAd6HzlOZmq2wwfvCWXxONWU2E8IMqVy6wlRCIpGNXrVEncKjWjkczb4zYCQ==

Merkle root

e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef

Merkle path

["d4bd3b4e214183b50f5f82d1ced73cf8033d797ae1c89cd03b3b942df871ae57","fb92991cb9ee362a7235f084f9bd5884813568a9808cbb716891c10adfa15592","5ae79ec8aee2feb24b9caa6a11c76b273bf67dd14d9ec3cf56686329cdac35d0","b95fd21b07f83eaff851fa016b163232ea8ac4f708a9bab8465ddfeda9f1a35c","09c6df0f135dd653b79bc39920a61d4a309df4089b989ac6e9e102b8fb4a7120","ce10f4fb198f54e3b6f6ade2d0ede40acfac1400fd6d04cc0c0163220c66c8cc","59e60739e1387c754852301096317ccf113681bcc71bdcae78c6307bcba60129","23c29e4a41dbdb3861cf76f94dde9273492080faad16cfe6854fe5e6aff68d60","48af355cbc83c873c6f9e5dd986b468c5f11071d8ad16078205cd27ee605a1c8","64af775fb7e27729ea2cc1b3c5d5f572e79919303ede1449f6a7f905276e5df5","8dd3545839055f7d4fd148a3c52b8f00591fec4cff65bda0b272f8625df59986","bf08a7b70abd12d7b26586897b736d1c0404f066aa427e277708a875f0cb6bcb","06f94171d32c86f72a9e1d984f2a7c3fa7bd9f00a98eabaa3fbd7d57db71aaf2","e3714293de39ce3c6e3cb9d5ea7711343b19d2be532c75504682d8ef52e8f91e","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/delivery/en","quote":"When I wanted to upload a file, it also took a really long time","rating":4,"review_date":"2024-09-22","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.