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 use this app a lot to order my favorite foods”
Google Play · 5/5 · 2025-12-16

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 3248278454

Proof data

Record hash (SHA-256): 1a19d40b8a032f1ca9b6f39ab46ec828cbf19095f210a3d40eecbbcd871b0879
Signature (Ed25519, base64): 9HPxFXtJfY8ypp+/RPD3G2pKqDGepERWNIDlssSKzUrHfvWGxCPo/KvY3W9RGr6u8J73z85+r+EQBHMyFCY/DQ==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["1a165961e07c02f0e30d20238259952c6e0adb6063cf7f57f86c35f318abecfa","d7fdd327301aff961aca6ab276ba2e01a90e81e2c04a650dac7cb9855b0c71b7","a640bca5b420886aae4bb47a8057e415134a2e259e106f175273473a420b2794","e43d1fd7ff29dd2cc849ca9918971ccac3bb34e0c3628d78f5f4929d73164efc","0b8a7dc4dfdebcbffddee3aeb76f5c6b74bafe79ee571576173bc31d833899df","504d3bcb9e85e1b11903eed16dd8dfc4994e34c96d30d9347bc67eb094bcab8c","57e283b6b4aa0ebb90c52c5f491e2b41305b360bb172e41293a27ff19774a965","93aa67dee27f3312a9884a2520bdfffe30d803e6d136c4a6af467d79c5c181df","16dc6cc1cffb97b8761419de342feed8300d01975ca4bac20a0e16c428ba681c","7555ca7755ce0977aa97344e9edea28c77141a78774910cf9dd1ec7f5be52ddf","f0d849fe2b2b2e8ac46eb31ce8ef0940645609e0ab080116168fd866668ba7ee","0f8ab31a8b7f9aa6ba4ff019c72fbe9792e5837d40b3bad40ea1cfb0cc79e40a","4fd1b36929337d346b3723be273df6d7588bc7b080f058260d538b3f309857bd","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"en","page":"brand:uairango","quote":"I use this app a lot to order my favorite foods","rating":5,"review_date":"2025-12-16","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 (81db1abd6b6e…), 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.