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.

“O suporte é péssimo”

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 2890214870

Proof data

Record hash (SHA-256)

cd925ab5baa4a2fb31cca76e4ae24eaab46fad0dbeb3a100438b1f27fee8cd19

Signature (Ed25519, base64)

sK4GAqCqHBl/ecEJm/nPmhZhVycLh0nIJTwU7l0DxAaT31TRkfgjzKTO9P4giBBWpdANWG4EmcyqhLuyubAkDQ==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["cd92184824c8822ac5a29185065a511abcf2d8bc232b0af8a80cbc320d469906","55704b7fe5ce3ac8f94f5504cd0baebd4147d19c2bb07c4dff3178648b8dbc09","56715b536ba4f6f4cdb53841aef412bd9a81058d8a812078aadc022f146aa6a2","16a116cbf9dbfc276d01a5319c8b97aef41d1dad8f7ad79e1515d1c980479f34","be5c7edf0e69ca9dcc4629543a023178ba177c5fbf59a668545aea6e1df9ee9c","536b2c863f46db7353ac9cfd358b33d6a6d16e0c9d77a79e0f0482e488cc1795","41773792c95b93469a6c59cef64cf88179522da9065247175d1e11415af768b0","c64c60f8f8e384d7e51fc80e74479cd9ccbf90080e35fca12acad7f7605b711f","d73acef292763944519b0224580d01e0bf90213d8f9960daea3621ddf89a351c","f6b1d978c2f3811c12019e6829067b6918db2ead0a1e9f09ecd61af2f9deab10","6adb1f59c81036996a2e5280307efcfb6a427a1b3d64a1b34440055d90af1ba2","1ef1a9718be3c90e98bc2f2ad1b13dcfe1b53f48fcfce25ef31cfaa0adba4581","77c7b6988870e1e90529e81d4533964f2663907157dc1c87878656cd074ac437","8f074eddb198349108c1e544aa98c8c80e756f627b29b4943cfd74cb3331adf1","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"pt","page":"subtheme:quero-delivery/service/problemas-t-cnicos/pt","quote":"O suporte é péssimo","rating":1,"review_date":"2026-08-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","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 (04b39eaa56e1…), 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.