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 won't use the app without this widget.”

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 2789279696

Proof data

Record hash (SHA-256)

3fd2118876ad2b2f64711b3140dba064e647d46b718b59e5a00ca721ad0c082b

Signature (Ed25519, base64)

uAxpEJc/5lsqndaTfMk/uNYWaxsN3HEfIRWw1VQ62lbwQ2eX/kb77bmm0F24b4ABQg8I6QRUWB/JziiRr45HBg==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["3fd24dec1b6717057338b1ebb994885ff950c7d91d74a8c94ee08fcf787d7c36","d0095d02be03023ff7cd6b6dc0d1635b24db0eda0f15129a0d28891c973e3720","5e1a9ef4b25ae1ab6bfe77a697cfc3f78a22dd42b9a7ed1fd3d5f35784138bbc","544793f3340cc31c81a3bc67faf96655b802fec81bd4c5fd486ca73acc98df7a","9e564ddbe0ffaabc8a666ec78edb72564ca4659ef18ec61ceffeba96af892e3c","99579da133fd415056c92a65d707400107109dd221bc804b41e20d966003a81b","26e775e151d040c5a92deb8d49a68fbfe266d114ebd2c7c990537dab96e2f421","2dd5e5e3f775d034ccade3c1f2803638a3bbe3cf7b047ed62950e8dfb2174070","805e7149c100931ea210c1cbabaa2c369abcf6328085d6db713e1eadbf490fc3","a418eac75d9ac6ce8ff34a378ae859cc44a69b88a1b7f561a08daf9ffd1b518f","4751a18a0ef2d274921212069f9f2b5290e43a95a5cae6a6ab4386457522e968","aa7c727744c972cb66fba1d64eea69090f0779e70821de9cee298fb3fcfb9463","b2cde2091952330dc6d7773f9467df58d2e8463851174cad44d4f743c8f8617f","a9559f2ca8536f2c18bf059f3f0099d62235a93ac35dc17b09967d392b72be7f","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]

Anchored

2026-09-11

Public log entry

search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…

Expected log hash

05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:tuta/fit/en","quote":"I won't use the app without this widget.","rating":3,"review_date":"2026-08-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","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 (97eb1062a862…), 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.