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.

“Very fast delivery.”
Google Play · 5/5 · 2025-12-18

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 3198489507

Proof data

Record hash (SHA-256): 30ed9b96bfca6ce24cd38d3cdd6d88e7d6011c05091597d9ee3512d2a8fb12b0
Signature (Ed25519, base64): VCRr/2FZk+EFqRhEQsNG3l/ln2F3fs6rdYFDmUGCCfk1f2fgouM6tQFRt6cGl0ftlFa/6q3Iq1vTLaOl+eo2BQ==
Merkle root: 240cb93491796b59a812f7182e64c43781541345e454701e4066e1786c286494
Merkle path: ["30ebb733c1e730ec59bb54490b7bd23ee7a36aab18d63b5fe47f9a295ac6267b","0b7e15fd9ff22c3e084ad237d4abfe1f965b46a3ed505c95d5a35195dc7f6a4a","812dd1fb18897610df94829712e692e7bf6ee6cce6697c40662965d3c6d94eda","3f86c2b913e1543ff443d62cfbbef67beb5a8c15f56ce374b80b8ded27824976","3f5d6e7c4781d1125585899b10f4bdba909e001795cb51d3bfc3158aa10defe4","b7f0ced8641ecf1ccb148447a59c18898a1fdfaf00730e75e3da0d3e7fa66071","d0326df1421d47e1b14d05231f4d41b7426b7289dda0132fc531cde0fc95e960","b36423cc5e400e20800241ac7316dfbadb09f112b5f25a3d06ce3adf8505634b","78dd38d5b13793b9eac0511931ec2885d0b19c585427f44ae49b44959aae5876","f29fc0dcbf03fc7ab3504689aaeae750b894690b76af7b77c18cbbeb2534dcbc","5875a01980fab1ed428afb1225d64357cb880ae3126d5a5d3a8e239ccb3e8480","ec9ecaaf6ecd25e70da3b6283bf48b73edd2937bdffac512199306f1e5863dc7","7115b4e40dabe303dca48b39285385aef0729dc23733c818e0f3ca68286a3ee4","0d65160dee55e809fe06e5334fb3150d04f822ce1cb47b2ae30b5d21efdf0eb3"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198489507 · entry 108e9186e8c5677ae5cf…
Expected log hash: 50393c13ffd4f8ef4c37424a8293b422d8c3ecaf6b9593225e2bb93e0cf2c210 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":"v1791686710415","kind":"published-quote","locale":"en","page":"brand:uairango","quote":"Very fast delivery.","rating":5,"review_date":"2025-12-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.uairango","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 (240cb9349179…), 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.